INDEX FIGURE NUMBER INDEX FIGURE NUMBER INDEX X X X X

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2 INDEX Introduction Quality Walworth ,3 Trunnion Mounted Ball Valve API 6D Design Features Ball Valves ,6,7,8 Trim Material Ball Valve API 6D Class 150, 2 to Ball Valve API 6D Class 150, 16 to Ball Valve API 6D Class 300, 2 to Ball Valves API 6D Class 300, 16 to Ball Valve API 6D Class 600, 2 to Ball Valve API 6D Class 600, 16 to Ball Valve API 6D Class 900, 2 to Ball Valve API 6D Class 900,12 to Ball Valve API 6D Class 1500, 2 to Design Features Flotating Ball Valves ,20 Trim Material Floating Ball Class 150, 1/2 to Floating Ball Class 300, 1/2 to Pressure Temperature Rating Specifications for Seat Materials Valves Materials Nace Service Valves Accessories Materials Selecction ,30,31,32,33,34,35 Applicable Standards and codes Terms and Conditions FIGURE NUMBER INDEX FIGURE PAGE BALL VALVE API 6D CLASS , 8113, 8122, , 11 BALL VALVE API 6D CLASS , 8313, 8322, , 13 BALL VALVE API 6D CLASS , 8613, 8622, , 15 BALL VALVE API 6D CLASS , 8913, 8922, , 17 BALL VALVE API 6D CLASS , 8513, 8522, FLOATING BALL VALVES CLASS , 7113, 7122, FLOATING BALL VALVES CLASS , 7313, 7322, FIGURE NUMBER INDEX X X X X MODEL 7 = FLOATING BALL VALVE 8 = TRUNNION MOUNTED API 6D PRESSURE 1 = = = = = 1500 OPERATOR 1 = LEVER 2 = GEAR OPERATOR 3 = NEUMATIC ACTUATOR ELECTRIC ACTUATOR HIDROMEUMATIC ACTUATOR ENDS 2= FLANGED RAISED FACE 3 = FLANGED RING TYPE JOINT 4 = BUTTWELD

3 Manufacturing Facility in the city of Tepotzotlan, State of Mexico, Mexico. Founded in 1842, Walworth has been leader in the valve industry since its inception, continuing to utilize the latest technology for product improvement and the development of new products. Today, Walworth offers complete lines of industrial valves in a variety of configurations, sizes, pressure classes and materials. Walworth continues to meet and exceed the quality standards required for products used in Nuclear, Military, Industrial and Process installations. These valves are manufactured under and comply with strict international standards such as API, ANSI, ASME, ASTM, MSS, NACE, AWWA, BSI, CSA, etc. Walworth Engineers are continuously evaluating our existing product utilizing all of today s advanced analysis and engineering tools to assure that our valves conform to customer requirements as well as industry standards. New designs are made following the same rigorous methodology and are tested in our laboratory under actual load/pressure conditions. Additionally, they are subjected to cyclic operation under pressure to determine wear/life expectancy. All Walworth manufacturing facilities operate under quality systems such as the International Standards Organization ISO-9001 series and the American Petroleum Institute API Q1 Specifications for quality. These systems have been in place for more than ten years and are audited for compliance by independent auditors for ISO and/or API as well as by such customers as BP/Arco, Shell Oil, Exxon/Mobil, Texaco, Dow Chemical, etc. Casting and forging product quality is assured through close control of our own foundry and forging facilities. The same type of close control is exercised over all of our suppliers through continuous verification of materials and part, form, fit and function. The Walworth group of enterprises is dedicated to the design, manufacture and servicing of flow control products that effectively meet our customers requirements. 1

4 The complete line of Walworth products are manufactured under a controlled Quality Assurance System with documented procedures that meet all industry specifications and customer requirements. These procedures and controls include raw material purchasing and verification, process controls, assembly, test and shipping with all required documentation. The Walworth Quality Assurance System is documented in a Manual that has been approved by ISO and API. Walworth has been awarded an ISO-9001: 2000 Certificate and is licensed by API to monogram API 6A and API 6D product under the API Q1 monogram program. Each valve undergoes a design validation through a function and pressure test to demonstrate conformance to requirements. This results in a Material Test Report (MTR) documenting the chemical and mechanical properties for the pressure containing parts that is traceable to the valve serial number. The results of any additional non-destructive examinations (NDE) are also recorded and referenced to the valve serial number. All valves are identified and marked conforming to the requirements of API 6D, ASME B and MSS SP-25 both on the valve body and valve name plate.

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6 TRUNNIONS MOUNTED BALL VALVE API 6D FULL BORE THREE PIECE DESIGN FORGED STEEL/CONSTRUCTION TRUNNION MOUNTED DESIGN FIRE SAFE API 6FA, API 607 EMERGENCY SEALANT INJECTION FITTING PREVENTS LEAKAGE FROM THE STEM DOUBLE "O" RING SEAL PREVENTS LEAKAGE FROM STEM AREA "O" RING & GASKET COMBINATION PREVENTS LEAKAGE FROM BODY JOINT AREA BLOW OUT PROOF STEM SEALANT INJECTION FITTING WITH INTERNAL CHECK VALVE FOR EMERGENCY SEAT SEALING SECONDARY METAL TO METAL SEALING MEETS FIRE SAFE REQUIREMENTS FLOATING SPRING LOADED SEATS TO ASSURE SEALING EVEN AT LOW PRESSURE The Walworth Ball Valve design with steel trunnions and Teflon-Moly Coated Steel bearings to assure low torque operation. The stem has a Anti-Static System to prevent sparks when openning and closing the valve. The Walworth Ball Valve is designed with a continous full bore which allows of tools and cleaning while avoiding turbulence and fluid pressure drop through the valve. The valve does not need lubrication in normal operating conditions. However, a leak through the seat seal can be stopped by injecting light grease sealant through the seat sealant fittings in the valve body. 4

7 DESIGN FEATURES STEM BODY ANTI-STATIC DEVICE BALL Blow Out Proof Stem The lower end of the stem has an integral T shape designed to be blow- out proof. Anti- Static Device A spring Loaded grounding ball insures the electrical continuity between the stem and the body, to avoid sparks during opening and closing the valve. 5

8 DESIGN FEATURES GRAPHITE Fire Safe Design The gaskets and stem seals are long lasting and resistant to high temperature. However, the seat has a secondary Metal to Metal seal which minimizes leaks in case of erosion of the seat seal or fire. 6

9 DESIGN FEATURES Emergency Seal System For 6" and greater the valves are supplied with a stem sealant fitting and a seat sealant fitting for each seat. Internal or external leaks may be eliminated by injecting plastic packing through the stem sealant fitting or sealant through the seat sealant fitting. Each sealant fitting has a double ball check valve under each fitting that eliminates the back pressure due to the internal pressure. DRAIN PLUG BODY RELIEF PLUG BODY CAVITY BODY CAVITY BALL IN CLOSE SEAT POSITION Double Block and Bleed Walworth Trunnion ball valves provide a positive seal at both upstream and downstream independently. Since pressure on each side of the ball is blocked from the body cavity, a pressure releasing device can be used by an operator to check the integrity of the upstream and downstream seats. 7

10 DESIGN FEATURES DETAIL WELDED BODY (OPTIONAL) 8

11 TRIM MATERIAL NO. PART STANDARD STAINLESS STEEL SOUR SERVICE (NACE) LOW TEMPERATURE SERVICE 1 ASTM A105 ASTM A182 F316 ASTM A105 ASTM A350 LF2 BODY ASTM A216 WCB ASTM A351 CF8M ASTM A216 WCB ASTM A 352 LCB 2 ASTM A105 ASTM A182 F316 ASTM A105 ASTM A350 LF2 END ASTM A216 WCB ASTM A351 CF8M ASTM A216 WCB ASTM A 352 LCB 3 ASTM A105 ENP ASTM A182 F316 ASTM A105 ENP ASTM A350 LF2/ENP BALL ASTM A216 WCB/ENP ASTM A351 CF8M ASTM A216 WCB/ENP ASTM A 352 LCB/ENP 4 TRUNNION AISI 4140/ ENP ASTM A182 F316 AISI 4140/ ENP AISI 4140/ ENP 5 TRUNNION AISI 4140/ ENP ASTM A182 F316 AISI 4140/ ENP AISI 4140/ ENP 6 STEM AISI 4140/ ENP ASTM A182 F316 AISI 4140/ ENP AISI 4140/ ENP 7 SEAT ASSEMBLY ASTMA A105/ ENP ASTM A182 F316 ASTM A105/ ENP ASTM A350 LF2/ENP 8 SEAT INSERT PTFE, NYLON PTFE, NYLON PTFE, NYLON PTFE, NYLON 9 SPRING INCONEL X-750 INCONEL X-750 INCONEL X-750 INCONEL X SEAT "O" RING VITON VITON VITON VITON 11 STEM "O" RING VITON VITON VITON VITON 12 TRUNNION "O" RING VITON VITON VITON VITON 13 BODY "O" RING VITON VITON VITON VITON 14 BACK UP PTFE PTFE PTFE PTFE 15 GASKET GRAPHITE GRAPHITE GRAPHITE GRAPHITE 16 PACKING BOX ASTM A105 ASTM A182 F316 ASTM A105 ASTM A350 LF2 17 ADAPTER PLATE ASTM A105 ASTM A182 F316 ASTM A105 ASTM A350 LF2 18 STEM WASHER 316+TEFLON+MOLY 316+TEFLON+MOLY 316+TEFLON+MOLY 316+TEFLON+MOLY 19 THRUST WASHER 316+TEFLON+MOLY 316+TEFLON+MOLY 316+TEFLON+MOLY 316+TEFLON+MOLY 20 BEARING 316+TEFLON+MOLY 316+TEFLON+MOLY 316+TEFLON+MOLY 316+TEFLON+MOLY * 21 RELIEF PLUG CARBON STEEL STAINLESS STEEL CARBON STEEL CARBON STEEL 22 SEAT SEALANT FITTING CARBON STEEL STAINLESS STEEL CARBON STEEL CARBON STEEL 23 STEM SEALANT FITTING CARBON STEEL STAINLESS STEEL CARBON STEEL CARBON STEEL * 24 DRAIN PLUG CARBON STEEL STAINLESS STEEL CARBON STEEL CARBON STEEL 25 SPRING (ANTI STATIC) INCONEL X-750 INCONEL X-750 INCONEL X-750 INCONEL X BALL (ANTI STATIC) STAINLESS STEEL STAINLESS STEEL STAINLESS STEEL STAINLESS STEEL 27 STUD BOLT ASTM A193 B7 ASTM A193 B8 ASTM A193 B7M ASTM A320 L7M 28 HEX NUT ASTM A194 2H ASTM A194 8 ASTM A194 2HM ASTM A194 7M 29 SOCKET BOLT ASTM A574 STAINLESS STEEL ASTM A574 ASTM A KEY CARBON STEEL STAINLESS STEEL CARBON STEEL CARBON STEEL 31 STUDS AND NUTS ASTM A193 B7/ ASTMA194 2H ASTMA193 B8/ ASTMA194 8 ASTM A193 B7/ ASTMA194 2HM ASTM A320 L7M/ ASTMA194 7M 32 STUDS AND NUTS ASTM A193 B7/ ASTMA194 2H ASTM A193 B8/ ASTMA194 8 ASTM A193 B7/ ASTMA194 2HM ASTM A320 L7M/ ASTMA194 7M 33 SUPPORT CARBON STEEL STAINLESS STEEL CARBON STEEL CARBON STEEL 34 LIFT EYE CARBON STEEL ACERO INOXIDABLE CARBON STEEL CARBON STEEL 35 GEAR OPERATOR DUCTILE IRON/CARBON STEEL DUCTILE IRON/CARBON STEEL DUCTILE IRON/CARBON STEEL DUCTILE IRON/CARBON STEEL * 36 IDENTIFICATION PLATE STAINLESS STEEL STAINLESS STEEL STAINLESS STEEL STAINLESS STEEL * 37 LOGO PLATE STAINLESS STEEL STAINLESS STEEL STAINLESS STEEL STAINLESS STEEL ENP = ELECTROLESS NICKEL PLATED * NOT SHOWN 9

12 BALL VALVE API 6D TRUNNION BALL VALVE FULL BORE THREE PIECE DESIGN FORGED OR CAST TRUNNION MOUNTED DESIGN GEAR OPERATOR 6 AND LARGER CLASS 150 D LEVER GEAR OPERATOR FIGURE END CR JA FIGURE END CR JA DIMENSIONS AND WEIGHTS SIZE MM VALVE INCH D MM INCH A CR MM INCH A JA MM INCH B MM INCH E MM INCH C MM INCH WEIGHT KG LB

13 BALL VALVE API 6D TRUNNION BALL VALVE FULL BORE THREE PIECE DESIGN FORGED OR CAST TRUNNION MOUNTED DESIGN GEAR OPERATOR 6 AND LARGER CLASS 150 GEAR OPERATOR FIGURE END CR JA DIMENSIONS AND WEIGHTS SIZE MM VALVE INCH D MM INCH A CR MM INCH A JA MM INCH B MM INCH E MM INCH C MM INCH WEIGHT KG LB

14 BALL VALVE API 6D TRUNNION BALL VALVE FULL BORE THREE PIECE DESIGN FORGED OR CAST TRUNNION MOUNTED DESIGN GEAR OPERATOR 6 AND LARGER CLASS 300 D LEVER GEAR OPERATOR FIGURE END FIGURE END CR JA CR JA DIMENSIONS AND WEIGHTS SIZE MM VALVE INCH D MM INCH A CR MM INCH A JA MM INCH B MM INCH E MM INCH C MM INCH WEIGHT KG LB

15 BALL VALVE API 6D TRUNNION BALL VALVE FULL BORE THREE PIECE DESIGN FORGED OR CAST TRUNNION MOUNTED DESIGN GEAR OPERATOR 6 AND LARGER CLASS 300 GEAR OPERATOR FIGURE END CR JA DIMENSIONS AND WEIGHTS SIZE MM VALVE INCH D MM INCH A CR MM INCH A JA MM INCH B MM INCH E MM INCH C MM INCH WEIGHT KG LB

16 BALL VALVE API 6D TRUNNION BALL VALVE FULL BORE THREE PIECE DESIGN FORGED OR CAST TRUNNION MOUNTED DESIGN GEAR OPERATOR 6 AND LARGER CLASS 600 D LEVER GEAR OPERATOR FIGURE END FIGURE END CR JA CR JA DIMENSIONS AND WEIGHTS SIZE MM VALVE INCH D MM INCH A CR MM INCH A JA MM INCH B MM INCH E MM INCH C MM INCH WEIGHT KG LB

17 BALL VALVE API 6D TRUNNION BALL VALVE FULL BORE THREE PIECE DESIGN FORGED OR CAST TRUNNION MOUNTED DESIGN GEAR OPERATOR 6 AND LARGER CLASS 600 GEAR OPERATOR FIGURE END CR JA DIMENSIONS AND WEIGHTS SIZE MM VALVE INCH D MM INCH A CR MM INCH A JA MM INCH B MM INCH E MM INCH C MM INCH WEIGHT KG LB

18 BALL VALVE API 6D TRUNNION BALL VALVE FULL BORE THREE PIECE DESIGN FORGED OR CAST TRUNNION MOUNTED DESIGN GEAR OPERATOR 6 AND LARGER CLASS 900 D LEVER GEAR OPERATOR FIGURE END FIGURE END CR JA CR JA DIMENSIONS AND WEIGHTS SIZE MM VALVE INCH D MM INCH A CR MM INCH A JA MM INCH B MM INCH E MM INCH C MM INCH WEIGHT KG LB

19 BALL VALVE API 6D TRUNNION BALL VALVE FULL BORE THREE PIECE DESIGN FORGED OR CAST TRUNNION MOUNTED DESIGN GEAR OPERATOR 6 AND LARGER CLASS 900 GEAR OPERATOR FIGURE END CR JA DIMENSIONS AND WEIGHTS SIZE MM VALVE INCH D MM INCH A CR MM INCH A JA MM INCH B MM INCH E MM INCH C MM INCH WEIGHT KG LB

20 BALL VALVE API 6D TRUNNION BALL VALVE FULL BORE THREE PIECE DESIGN FORGED OR CAST TRUNNION MOUNTED DESIGN GEAR OPERATOR 6 AND LARGER CLASS 1500 D LEVER GEAR OPERATOR FIGURE END CR JA Figure End CR JA DIMENSIONS AND WEIGHTS SIZE MM VALVE INCH D MM INCH A CR MM INCH A JA MM INCH B MM INCH E MM INCH C MM INCH WEIGHT KG LB

21 FLOATING BALL VALVES CLASS 150/300 FLOATING BALL VALVES FULL BORE TWO PIECE DESIGN SPLIT BODY FOUNDRY FIRE SAFE API-6FA/API-607 STEM WITH PLANES TWO DOUBLE D FLATS ON STEM ASSURES MOUNTING OF THE LEVER HANDLE ALWAYS IN PARALLEL TO FLOW PASSAGE MOUNTING BASE FOR EASY INSTALLATION OF GEAR OPERATOR OR PNEUMATIC ACTUATOR BLOW OUT PROOF STEM FIRE SAFE METAL TO METAL SEALING BACK-UP FOR NON-METALLIC SEALS, BALL FLOATS TO SHUT OFF THE LINE FLUID GASKET SOFT SEAL ASSURES LOW EMISSIONS 19

22 DESIGN FEATURES

23 TRIM MATERIAL NO Part STANDARD STAINLESS STEEL SOUR SERVICE LOW TEMPERATURE (NACE) SERVICE 1 BODY ASTM A216 WCB ASTM A351 CF8M ASTM A216 WCB ASTM A 352 LCB 2 END ASTM A216 WCB ASTM A351 CF8M ASTM A216 WCB ASTM A 352 LCB 3 BALL ASTM A105/ENP ASTM A182 F316 ASTM A105/ENP ASTM A350 LF2/ENP 4 BASE MOUNTING CARBON STEEL CARBON STEEL CARBON STEEL CARBON STEEL 5 GLAND FLANGED ASTM A216 WCB ASTM A351 CF8M ASTM A216 WCB ASTM A 352 LCB 6 SEAT RING PTFE PTFE PTFE PTFE 7 STEM ASTM A182 F6A ASTM A182 F316 ASTM A182 F6A ASTM A182 F316 8 GLAND BUSHING ASTM A216 WCB ASTM A351 CF8M ASTM A216 WCB ASTM A 352 LCB 9 GASKET GRAPHITE GRAPHITE GRAPHITE GRAPHITE 10 WASHER GRAPHITE GRAPHITE GRAPHITE GRAPHITE 11 STEM PACKING PTFE PTFE PTFE PTFE 12 THRUST WASHER PTFE PTFE PTFE PTFE 13 EYE BOLT ASTM A193 B7 ASTM A193 B8 ASTM A193 B7M ASTM A320 L7M 14 NUT ASTM A194 2H ASTM A194 8 ASTM A194 2HM ASTM A194 7M 15 BOLTS ASTM A193 B7 ASTM A193 B8 ASTM A193 B7M ASTM A320 L7M 16 STUD ASTM A193 B7 ASTM A193 B8 ASTM A193 B7M ASTM A320 L7M 17 SPRING (ANTI STATIC) STAINLESS STEEL STAINLESS STEEL STAINLESS STEEL STAINLESS STEEL 18 STEEL BALL STAINLESS STEEL STAINLESS STEEL STAINLESS STEEL STAINLESS STEEL 21

24 FLOATING BALL VALVES FLOATING BALL VALVES FULL BORE TWO PIECE DESIGN CAST BODY FIRE SAFE API 607 AND API 6FA GEAR OPERATOR 6 AND LARGER CLASS 150 LEVER GEAR OPERATOR FIGURE END CR JA FIGURE END CR JA DIMENSIONS AND WEIGHTS SIZE MM VALVE INCH 1/2 3/ / / D MM INCH A CR MM INCH A JA MM INCH B MM INCH C MM INCH WEIGHT Kg Lb

25 FLOATING BALL VALVES FLOATING BALL VALVES FULL BORE TWO PIECE DESIGN CAST BODY FIRE SAFE API 607 AND API 6FA GEAR OPERATOR 6 AND LARGER CLASS 300 LEVER GEAR OPERATOR FIGURE END CR JA FIGURE END CR JA DIMENSIONS AND WEIGHTS SIZE MM VALVE INCH 1/2 3/ / / D MM INCH A CR MM pulg A JA MM INCH B MM INCH C MM INCH WEIGHT Kg Lb

26 PRESSURE TEMPERATURE RATING MATERIALS, BODY, ENDS AND BALL CAST STEEL ASTM A216 GR. WCB FORGED STEEL A105 Maximun Allowable Non Shock Working Pressure In Psi By Class FOR PROLONGED USAGE AT TEMPERATURES ABOVE 800 F (427 C), CONSIDERATION SHOULD BE GIVEN TO THE POSSIBILITY OF GRAPHITR FORMATION IN CARBON STEEL. CAST STEEL ASTM A351 CF8M FORGED STEEL A182 GR. F316 FOR PROLONGED USAGE AT TEMPERATURES ABOVE 800 F (427 C), CONSIDERATION SHOULD BE GIVEN TO THE POSSIBILITY OF GRAPHITR FORMATION IN CARBON STEEL. CAST STEEL ASTM A352 GR. LCB FORGED STEEL A350 GR. LF2 O ºF Temperature C A A Maximun Allowable Non Shock Working Pressure In Psi By Class O ºF Temperature C A A Maximun Allowable Non Shock Working Pressure In Psi By Class ºF Temperature OC A A

27 SEAT MATERIALS PROPERTIES PTFE NYLON REFORCED PEEK DELRIN TEMPERATURE RANGE F -70 ~ ~ ~ ~ 180 PRESSURE RATING 900 ~ ~ ~ ~ 1500 MECHANICAL HARDNESS D75 D60 D85 R-120 TENSILE STRENGTH MIN 4640 MIN MIN 6600 ~ 7500 PROPERTY (PSI) MIN ELONGATION % 250 ~ ~ ~ 230 SPECIFIC PHYSICAL GRAVITY ~ ~ ~ 1.42 WATER PROPERTY ABSORPTION 0.2 < % COLOR NATURAL WHITE GREY BLACK WHITE SEAT MATERIALS ( ELASTOMER O RING) PROPERTIES VITON BUNA N EPDM AFLAS TEMPERATURE RANGE F -20 A A A A 500 SPECIFIC GRAVITY HARDNESS D75 D90 D90 D79 TENSILE STRENGTH MIN GASKET TYPE GRAPHITE GRAPHITE+316 GRAPHITE+316 TEMPERATURE RANGE F -328 A A A 500 SERVICE APPLICATION 100% 100% CRYOGENIC FIRE SAFE FIRE SAFE HIGHLY CORROSIVE PH 0 ~ 14 0 ~ 14 0 ~ 14 25

28 VALVES MATERIALS CHEMICAL COMPOSITION AND MECHANICAL PROPERTIES ELEMENTS CARBON STEEL ALLOY STEEL AND ASTM A105 ASTM A216 ASTM A350 ASTM A182 ASTM A351 ASTM A351 PROPERTIES GR. WCB GR. WCC LF2 F316 GR. CF8 GR. CF8M CARBON 0.35 MAX MAX MANGANESE MAX PHOSPHORUS MAX SULPHUR MAX SILICON MAX NICKEL 0.40 MAX MAX CHROMIUM 0.30 MAX MAX MOLYBDENUM 0.12 MAX MAX COPPER 0.40 MAX MAX COLUMBIUM 0.02 MAX MAX VANADIUM 0.08 MAX MAX TENSILE STRENGTH PSI MINIMUN YIELD STRENGTH PSI MINIMUN ELONGATION IN 2 % MIN REDUTION AREA % MINMUN HARDNESS (HB) MAXIMUM * THE PERCENTAGE (%) SHOWN ON THE ELEMENTS IS THE MAXIMUM EXCEPT WHERE RANGES ARE INDICATED. 26

29 NACE SERVICE VALVES THE NATIONAL ASSOCIATION OF CORROSION ENGINEERS (NACE) ESTABLISHES STANDARDS FOR MATERIALS RESISTANT TO SULFIDE STRESS CRACKING (SSC) TO BE USED IN HYDROGEN SULFIDE (H2S) BEARING HYDROCARBON SERVICE NACE STANDARD MR-0175 DEFINES A SULFIDE STRESS CRACKING REGION BASED ON THE RELATION SHIP OF (H 2 S) PRESENT TO THE TOTAL OPERATING PRESSURE. THIS MUST BE CONSIDERED WHEN SPECIFYING VALVES FOR SERVICE WHERE (H 2 S) IS PRESENT AS PROPER SELECTION OF MATERIALS IS A CUSTOMER RESPONSIBILITY SULFIDE STRESS CRACKING IN MATERIALS NOT SUITABLE FOR H 2 S SERVICE CAN RESULT IN A SUDDEN FAILURE WITH DAMAGE TO EQUIPMENT AND HARM TO PERSONNEL. Important Considerations When Specifyng NACE Service 1.- HYDROGEN ION CONCENTRATION (PH) 2.- CONCENTRATION AND TOTAL PRESSURE OF THE HYDROGEN SULFIDE (H 2 S) 3.- CONCENTRATION OF WATER, CARBON DIOXIDE (CO 2 ) AND CHLORIDES. 4.- SERVICE TEMPERATURE. THE CUSTOMER CAN SELECT VALVES MADE OF ALLOY/ CARBON STEEL MATERIAL WITH CONTROLLED HARDNESS AND/OR A STAINLESS STEEL MATERIAL DEPENDING ON THE SEVERITY OF THE FLUID. VALVES HAVING A BODY WITH A CONTROLLED HARDNESS OF RC 22 AND STUDS B7M, NUT 2H, CAN BE COMBINED WITH A CUSTOMER SELECTION TRIM AND MANUFACTURED TO MEET NACE MR-0175 REQUERIMENTS. 27

30 ACCESORIES THE WALWORTH STANDARD CAST STEEL PRODUCT LINE INCLUDES MANY DIFFERENT VALVES DESIGNED TO MEET MOST APPLICATIONS. THIS MAKES IT POSSIBLE FOR WALWORTH TO FURNISH VALVES ADAPTED TO THE CUSTOMERS SPECIAL NEEDS SUCH AS CONTROLLED OPENING/CLOSING AND REMOTE INSTALLATION. SPECIAL ADAPTATIONS CAN BE MADE TO MEET SPECIFIC CUSTOMER REQUIREMENTS. VALVES CAN BE SUPPLIED WITH MANUAL HANDWHEEL/GEAR OPERATION, CHAIN WHEEL, AS WELL AS ELECTRIC, PNEUMATIC AND HYDRAULIC ACTUATORS. VALVES CAN ALSO BE SUPPLIED WITH A BYPASS, DRAIN OR VENT CONNECTION, STEM EXTENSION, POSITION INDICATORS, FLOOR STAND MOUNTING AS WELL. GEAR OPERATORS A MANUAL GEAR OPERATOR IS DESIGNED WITH A WORM GEAR AND PINION RATIO SIZED TO TRANSMIT THE REQUIRED OPENING/CLOSING TORQUE WITH NORMAL OPERATOR EFFORT ON THE HANDWHEEL. THEY CAN BE SUPPLIED AS WATERPROOF UNITS AND/OR FOR UNDERGROUND INSTALLATION WITH A SQUARE OPERATING NUT. ACTUATORS VALVES CAN BE FURNISHED WITH EITHER ELECTRIC, PNEUMATIC OR HYDRAULIC ACTUATORS. THE ACTUATORS CAN BE FURNISHED AS EITHER WATERPROOF AND/OR EXPLOSION PROOF. THE CUSTOMER MUST SPECIFY SUCH THINGS AS OPEN-CLOSE SPEED, MAXIMUM DIFFERENTIAL PRESSURE, SERVICE TEMPERATURE, TYPE OF VOLTAGE-PHASE-FREQUENCY, AIR OR GAS PRESSURE FOR PNEUMATIC ACTUATORS AND FLOW CHARACTERISTICS FOR HYDRAULIC ACTUATORS TO BE ASSURED OF CORRECT PERFORMANCE. 28

31 MATERIAL SELECTION SELECTION CODE: MATERIALS SEAT ELASTOMER A = EXCELLENT B = IT MAY BE USED IRON ALUMINIUM CARBON STAINLESS STAINLESS BUNA N NEOPRENO VITON TEFLON C = USE WITH CAUTION D = NO, DO NOT USE FOUNDRY 356 STEEL STEEL STEEL ACETALDEHYDE C B C A A D D C A ACETATE SOLVENTS B A A A A D D D A ACETIC ACID (AERATED) D B D A A C C D A ACETIC ACID (AIR FREE) D B D A A C C D A ACEITIC ACID (CRUDE) C B C A A D C D A ACETIC ACID (PURE) C B C A A D D D A ACETIC ACID (10%) C B C A A D D D A ACETIC ACID (80%) C B D B B D D D A ACTIC ANHYDRIDE D B A A A C C D A ACETONE A A A A A D D D A ACETYLENE (DRY ONLY) A A A A A A A A A ACRYLONITRILE C B A A A D D C A AIR A A A A A A A A A ALCOHOLS METHYL ETHYL B A B A A A A A A ALCOHOLS AMYL B A B A A A A A A ACOHOS BUTYL B A B A A A A A A ALIMINIUN CHORIDE (DRY) B B B A A B B A A ALIMINIUN SULFATE (ALUMS) C B C A A A A A A ALUMS C B C A A A A A A AMINES A A A A A D D A A AMMONIA ANHYDROUS B B A A A B B C A AMMONIA (AQUEOUS) A B A A A B B A A AMMONIA SOLUTIONS B D B A A B B A A AMMONIUM BICARBONATE B B C B B B A A A AMMONIUM CARBONATE B B B B B B A B A AMMONIUM CHLORIDE D C D C C B A A A AMMONIUM HYDROXIDE (28%) C C C B B B A A A AMMONIUM HYDROXIDE (CONC.) C C C B C A A A A AMMONIUM MONOPHOPHATE D B D B B A A A A AMMONIUM NITRATE D B D A A A A A A AMMONIUM PHOSPHATE (DIBASIC) D B D B A A A A A AMMONIUM PHOSPHATE (TRIBASIC) D B D B A A A A A AMMONIUM SULFATE C B C B A A A A A AMYL ACETATE C B C B B D D D A ANILINE C C C B B C A C A ANILINE DYES C C C A C A A B A ANTIMONY TRICHLORIDE D D D D D D C A A APPLE JUICE D B D D B A A A A ARSENIC ACID D D D B B A A A A ASPHALT EMULSION A C A A A B A A A ASPHALT LIQUID A C A A A C A A A BARIUM CARBONATE B B B B B A A A A BARIUM CHOLORIDE C D C C C A A A A BARIUM SULFATE B D C B B A A A A BARIOUM SULFIDE C D C B B A A A A BEER (ALCOHOL INDUSTRY) C D C B B A A A A BEER (BEVERAGE INDUSTRY) C A C A A A A A A BEET SUGAR LIQUORS B A B A A A A BENZENE (BENZOL) B A B A A A A A A BENEZALDEHYDE B A A A A D D A A BEMZOIC ACID D B D A A D A D A 29

32 MATERIAL SELECTION SELECTION CODE: MATERIALS SEAT ELASTOMER A = EXCELLENT B = IT MAY BE USED IRON ALUMINIUM CARBON STAINLESS STAINLESS BUNA N NEOPRENO VITON TEFLON C = USE WITH CAUTION D = NO, DO NOT USE FOUNDRY 356 STEEL STEEL STEEL BORAX LIQUORS C C C B B A A A A BORIC ACID D B D B B A A A A BRINES C B C B B A A A A BUTADIENE B A D A A C C A A BUTANE B A B A A A B A A CALCIUM BISULFITE D C D C B A A A A CALCIUM CARBONATE D C D B B A A A A CALCIUM CHLORIDE C C C C B A A A A CARBINIC ACID D A D B B D D B A CARBON TETRACHLORIDE B B B A A D D B A CASTOR OIL B A B A A A B A A CHOROFORM (DRY) B D B A D D D B A CHROME ALUM B C B A A A B B A COCONUT OIL C B C B B A B A A COPPER ACETATE D C D A A A COPPER CHLORIDE D C D C C A A A A COPPER NITRATE D C D B B A A A A CRUDE OIL SWEET B A B A A A B A A CRUDE OIL SOURT C A B A A A B A A CYCLOHEXANE A A A A A C D A A DIACETONE ALCOHOL A A A A A D C A DIESEL FUELS A A A A A A C A A DRILLING MUD B B B A A A A A A DRYING OIL B B B A A C C A A EPSOM SALT C A C B B A A A A ETHANE A A A A A A B A A ETHER B A A A A C C C ETHYL ACETATE C A B B B D D D A ETHYL CHLORIDE B B B A A C C A ETHYLENE GLYCOL B A B B B A A A A ETHYLENE OXIDE C A B B B D D D A FERRIC NITRATE D D D C C A A A A FERRIC SULFATE D D D B B A A A A FERROUS CHLORIDE D D D D D A A A A FERROUS SULFATE D D D B B A A A A FISH OILS B B B A A A B A A FLUORINE D D D D D C FOOD FLUID AND PASTES C A C A A B B A FORMALDEHYDE (COLD) B A A A A B B A FORMALDEHYDE (HOT) D B D C C B B A FORMIC ACID (COLD) D D D C B D A A FORMIC ACID (HOT) D D D C B D A FREON B B B A A C C C A FUEL OIL B A B A A A B A A GALLIC ACID D A D B B A A A GAS NATURAL B B B A A A A A A GAS ODDORIZERS B A B B B B B A A GASOLINE (LEADED) B A A A A C D A A GASOLINE (UNIEADED) B A A A A C D A A GASOLINE (AVIATION) B A A A A C D A A GASOLINE (MOTOR) B A A A A C D A A GASOLINE (SOUR) B A B A A C D A A 30

33 MATERIAL SELECTION SSELECTION CODE: MATERIALS SEAT ELASTOMER A = EXCELLENT B = IT MAY BE USED IRON ALUMINIUM CARBON STAINLESS STAINLESS BUNA N NEOPRENO VITON TEFLON C = USE WITH CAUTION D = NO, DO NOT USE FOUNDRY 356 STEEL STEEL STEEL GELATIN D A D A A A A A A GLUCOSE B A B A A A A A A GLUE A A A A A A A A A GLYCOLS B A B B B A A A GREASE A A A A A A B A A HEPTANE B A B A A A B A A HEXANE B A B B B A C A A HEXANOL TERTIARY A A A A A A HYDRAULIC OIL PETROLEUN BASE B A A A A A B A A HYDROBROMIC ACID D D D D D C C A HIDRICYANIC ACID D D D D D B C A HYDROFLUORIC ACID C A C A A B A HYDROGEN GAS (COLD) B A B A A B A HYDROGEN PEROXIDE D A D B B A A A A HYDROGEN SULFIDE B B B B A C A A A HYDROFLUOSILICIC ACID D D D C C A A A HYPO (SODIUM THIOSULFATE) C B D A A A A A A HYPOCHOLORITES SODIUM D C D C C C D A A ILLUMINATING GAS A A A A A A B A A INK D B D B A A A A A IODINE D D D D D B B A A LODOFORM C C B A A A A ISO OCTANE B A A A A A C A A ISOPROPYL ALCOHOL B B B B B C C A A ISOPROPYL ETHER B A A A A C C A JP-4 FUEL A A A A A A C A A JP-5 FUEL A A A A A A C A A JP-6 FUEL A A A A A A C A A KEROSENE B A B A A A C A A KETCHUP D D D A A A A A A KETONES A A A A A D D D A LACQUERS (AND SOLVENTS) C A C A A D D D A LACTIC ACID (DILUTE COLD) D A D A A B A A LACTIC ACID (DILUTE HOT) D B D B A C C A LARD OIL C A C A A A B A A LEAD ACETATE D D D B B A A A A LINOLEIC ACID B A B A A A B A A LINSEED OIL A A A A A A B A A LIQUEFIED PET GAS (LPG) B A B B B A B A A LUBRICANTIN OIL A A A A A A B A A MAGNESIUM BISULFATE B B B A A A MAGNESIUM CHLORIDE D D C B B A A A A MAGNESIUM HYDROXIDE B D B A A A A A A MAGNESIUM HYDROXIDE (HOT) B D B A A B A A A MAGNESIUM SULTATE B B B B B A A A A MALEIC ACID D B B B B A A A A MALIC ACID D B B B B A A A A MAYONNANSE D D D A A A A A A MERCURIC CHLORIDE D D D D C A A MERCURIC CYANIDE D D D A A A MERCURY A C A A A A A A A 31

34 MATERIAL SELECTION SELECTION CODE: MATERIALS SEAT ELASTOMER A = EXCELLENT B = IT MAY BE USED IRON ALUMINIUM CARBON STAINLESS STAINLESS BUNA N NEOPRENO VITON TEFLON C = USE WITH CAUTION D = NO, DO NOT USE FOUNDRY 356 STEEL STEEL ISTEEL METHANE B A B B B A B A A METHYL ACETATE B A B A A D D D A METHYL ACETONE A A A A A D D D A METHYLAMINE B A B A A A METHYL CELLOSOLVE B A B A A A METHYL CHORIDE B D B B A C C A METHYL ETHYL KETONE A A A A A D D D A METHYL FORMATE C C C B B D B A METHYLENE CHORIDE B A B A A D D C A MILK D A D A A A A A A MINE WATERS (ACID) D D D B B A A A A MINERAL OIL B A B A A A B A A MIXED ACIDS (COLD) C C C B A A MOLASSES EDIBLE A A A A A A A A A MOLASSES CRUDE A A A A A A A A A MURIATIC ACID D D D D D B B A A MUSTARD B B B A A A A A A NAPHTHA B A B B B A C A A NAPHALENE B B A B B S D A A NICKEL AMMONIUM SULFATE D D D A A A A NICKEL CHORIDE D D D B B A A A A NICKEL NITRATE D C D B B A A A A NICKEL SULFATE D D B B B A A A A NOCTINIC ACID B A B A A A NITRIC ACID (10%) D D D A A C B A A NITRIC ACID (30%) D D D A A C C A A NITRIC ACID (80%) D B D A A D D B A NITRIC ACID (100%) A B A A A D D B A NITRIC ACID ANHYDROUS A B A A A D A NITROBENZENE B C B B B D D C A NITROGEN A A A A A A A A A NITROUS ACID (10%) D D D B B C A A A NITROUS GASES C B B A A A NITROUS OXIDE C C B B B B B A OILS AMINAL A A A A A A B A OILS COTTONSEED C B C B B A B A OILS FISH B B B A A A B A OILS FUEL B A B A A A B A A OILS LUBE A A A A A A B A A OILS MINERAL B A B A A A B A A OILS PETROLEUM (REFINED) B A A A A A B A A OILS PETROLEUM (SOUR) C A B A A A B A A OLIS WATER MIXTURES B A B A A A B A A OLEIC ACID B A B A A A C A A OLEUM D B B B B C C C A OLIVE OIL B A A A A A B A A OXALIC ACID D C D B B C A A A OXYGEN B A B A A C C B A OZONE C B C A A A PALMITIC ACID C B C B B B B A A PALM OIL C A C B B B B A A 32

35 MATERIAL SELECTION SELECTION CODE: MATERIALS SEAT ELASTOMER A = EXCELLENT B = IT MAY BE USED IRON ALUMINIUM CARBON STAINLESS STAINLESS BUNA N NEOPRENO VITON TEFLON C = USE WITH CAUTION D = NO, DO NOT USE FOUNDRY 356 STEEL STEEL STEEL PARAFFIN B A B A A A B A A PARAFORMALDEHYDE B B B B B B B A A PENTANE B A B A A A B A A PERCHLORETHYLENE B A B A A D D A A PETROLATUM C B C B B A B A A PHENOL B A B A A D D B A PHOSPHORIC ACID (10%) COLD D D D B B B A A A PHOSPHORIC ACID (10%) HOT D D D D D B A A A PHOSPHORIC ACID (50%) COLD D D D B B B B A A PHOSPHORIC ACID (50%) HOT D D D D D B B A A PHOSPHORIC ACID (80%) COLD B D B A A C B A PHOSPHORIC ACID (80%) HOT C D C A A C B A PHTHALIC ACID C B C B B C C A A PHTHALIC ANHUDRIDE C B C B B C C A PIRIC ACID C B C B B C C A A PINE OIL B A B A A A C A A PINEAPPLE JUICE C A C A A A A A A POTASSIUM BISULRITE D C D B B A A A A POTASSIUM BROMIDE D C D A A A A A A POTASSIUM CARBONATE B C B B B A A A A POTASSIUM CHLORATE B C B B B A A A A POTASSIUM CHLORIDE B B C C C A A A A POTASSIUM CYANIDE B D B B B A A A A POTASSIUM DICHROMATE B A B A A A A A A POTASSIUM FERRICYANIDE B B B A A A A A A PTOTASSIUM FERROCYANIDE B A B A A A A A A POTASSIUM HYDROXIDE A D A A A A A A POTASSIUM IODIDE C C C A A A A A A POTASSIUM NITRATE B A B A A A A A A POTASSIUM PERMANGANATE B A B A A A A A A POTASSIUM SULFATE C A B A A A A A A POTASSIUM SULFITE B B B A A A A PRODUCER GAS B B B B B A B A A PROPANE B A B B B A B A A PROPYLENE GLYCOL B A B B B A A A A PYROGALIC ACID B B B B B A A A A QUENCH OIL B A B A A A B A A RESSING AND ROSINS C A C A A C C A ROAD TAR A A A A A B C A A ROOF PITCH A A A A A B C A A RP-1 FUEL A A A A A C A A RUBBER LATEX EMULSIONS B A B A A A A RUBBER SOÑVENT A A A A A D C D A SALAD OIL C B C B B A A A A SALIEYLIC ACID D C D A A A A A A SALT C B C B B A A A A SEA WATER D C D A A A A A A SHEALLAC (ORANGE) B A A A A A A A SILVER NITRTE D D D A A C C A A SEAP SOLUTIONS (STEARATES) A C A A A A A A A SOSIUM ACETATE B A B A A B B A A 33

36 MATERIAL SELECTION SELECTION CODE: MATERIALS SEAT ELASTOMER A = EXCELLENT B = IT MAY BE USED IRON ALUMINIUM CARBON STAINLESS STAINLESS BUNA N NEOPRENO VITON TEFLON C = USE WITH CAUTION D = NO, DO NOT USE FOUNDRY 356 STEEL STEEL STEEL SODIUM ALUMINATE C C C B B A A A A SODIUM BICARBONATE C B C B B A A A A SODIUM BISULFATE (10%) D D D A A A A A A SODIUM BISULFITE (10%) D D D A A A A A A SODIUM BORATE C B C B B A A A A SODIUM BROMIDE (10%) D B C B B A A A A SODIUM CARBONATE A D A A A A A A A SODIUM CHORATE C B C A A A A A A SODIUM CHLORIDE C B C B B A A A A SODIUM CHOROMATE B D B A A A A A A SODIUM CYANIDE A D A A A A A A A SODIUM FLUORIDE D C D B B A A A A SODIUM HYDROXIDE (COLD) 20% A D A A A A A B A SODIUM HYDROXIDE (HOT) 20% B D B A A B B C A SODIUM HYDROXIDE (COLD) 50% A D A A A A A C A SODIUM HYDROXIDE (HOT) 50% B D B A A B B C A SODIUM HYDROXIDE (COLD) 70% A D A A A C A SODIUM HYDROXIDE (HOT) 70% B D B A A C A SODIUM HYPOCHIORIDE D D D D D D A SODIUM METAPHOSPHATE B A B A A A A A SODIUM METASILICATE (COLD) C B C A A A A SODIUM METASILICATE (HOT) D B D A A A SODIUM NITRATE B A B B B C A A A SODIUM PERBORATE B B B B B C A A A SODIUM PEROXIDE C C C B B C A A A SODIUM PHOSPHATE (DIBASIC) B D B A A A A A A SPDIUM PHOSPHATE (TRIBASIC) B D B A A B B A A SODIUM SILICATE A B A A A A A A A SODIUM SILICATE (HOT) B C B B B A SODIUM SULFATE B A B A A A A A A SODIUM SULFIDE B C B B B A A A A SODIUM SULFIDE (HOT) C D C B B A SODIUM THIOSULFATE B B B A A A A A A SOYBEAN OIL C B C A A A B A A STANNIE CHORIDE D D D D D A A A A STARCH A A A A A A A A A STEAM (212 F) A A A A A C D B A STEARIC ACID C A C A A A C A A STODDARD SOLVENT B A B B B A C A A STYRENE B A A A A D D A SUGAR LIQUIDS A B A A A A A A A SULFATE BLACK LIQUOR C B C B B C C A A SULFATE GREEN LIQUOR C B C B B C C A A SULFATE WHITE LIQUOR C B C B B C C A A SULPHUR C A C B B D A SULPHUR DIOXIDE B A B A A C C A A SULPHUR TRIOXIDE B A B A A C D A SULFURIC ACID (0-7%) D B D C B B A A A SULFURIC ACID (20%) D D D D D C B A A SULFURIC ACID (50%) D D D D D C C A A SULFURIC ACID (100%) B D B A A D D B A 34

37 MATERIAL SELECTION SELECTION CODE: MATERIALS SEAT ELASTOMER A = EXCELLENT B = IT MAY BE USED IRON ALUMINIUM CARBON STAINLESS STAINLESS BUNA N NEOPRENO VITON TEFLON C = USE WITH CAUTION D = NO, DO NOT USE FOUNDRY 356 STEEL STEEL STEEL SULFUROUS ACID D C D B B C C A A SYNTHESIS GAS B B B B B A B A A TALL OIL B B B B B A B A A TANNIC ACID C C C B B A B A A TAR AND TAR OIL A A A A A B C A A TARTARIC ACID D B D B B C A A A TETRAETHYL LEAD C B C B B A TOLUENE OR TOLUOL A A A A A D D B A TAMATO JUICE C A C A A A A A A TRANSFORMER OIL B A A A A A B A A TRIBUTYL PHOSPHATE A A A A A C C A TRICHLORETHYLENE C A B B B D D B A TUNG OIL B B B A A A B A A TURPENTINE B A B A A B D A A UREA C B C B B A VARNISH A C A A A C A A VEGETABLE OIL EDIBLE B A B A A A B A A VEGETABLE OIL NON EDIBLE B A B A A A B A A VINEAR D C D A A D D D A WATER DISTILLED (AERRATED) D A D A A A A A A WATER FRESH C A C A A A A A A WATER SEA D B D A A A A A A WAX EMULSIONS B A A A A A B A A WAXES A A A A A A B A A WHISKEY AN WINE D D D A A A A A A XYLENE A A A A A D D A A ZINC CHORIDE C D D D D B A A A ZINC HYDROSULFITE B D A A A A A A A ZINC SUFATE D D D B B A A A A 35

38 APPLICABLE STANDARS AND CODES API STANDARDS - AMERICAN PETROLEUM INSTITUTE API 598 API 6D API 6FA API 607 VALVE INSPECTION AND TESTING PIPELINE VALVES (GATES, PLUG, BALL AND CHECK VALVES) SPECIFICATION FOR FIRE TEST FOR VALVES FIRE TEST FOR SOFT SEATED QUARTER TURN VALVES ASME STANDARDS ASME INTERNATIONAL (AMERICAN SOCIETY OF MECHANICAL ENGINEERS) ANSI B PIPE THREADS GENERAL PURSPOSE ANSI B16.5 PIPELINE FLANGES AND FLANGED FITTINGS ANSI B16.10 VALVES DIMENSIONS FACE TO FACE AND END TO END ANSI B16.25 BUTTWELDING ENDS ANSI B16.34 VALVES FLANGED, THREADED AND WELDING END. MSS STANDARDS MANUFACTURED STANDARDIZATION MSS SP-6 STANDARD FINISHES FOR CONTACT FACES OF PIPE FLANGED AND CONNECTING END FLANGED OF VALVES AND FITTINGS MSS SP-9 SPOT FACING FOR BRONZE, IRON AND STELL FLANGES MSS SP-25 MSS SP-25 STANDARD MARKING SYSTEM FOR VALVES, FITTINGS, FLANGES AND UNIOS MSS SP-44 STEEL PIPE LINE FLANGES MSS SP-55 QUALITY STANDARD FOR STEEL CASTINGS FOR VALVES, FLANGES AND FITTINGS AND OTHER PIPING COMPONENTS VISUAL METHOD FOR EVAL OF MSS SP-61 SURFACE IRREGULARITIES PRESSURE TESTING OF STEEL VALVES ASTM STANDARDS AMERICAN SOCIETY FOR TESTING AND MATERIALS ASTM A-105 STANDARD SPECIFICATION FOR CARBON STEEL FORGINGS FOR PIPING APPLICATIONS ASTM A-182 STANDARD SPECIFICATION FOR FORGED OR ROLLED ALLOY STELL PIPE FLANGES, FORGED FITTINGS AND VALVES AND PARTS FOR HIGH TEMPERATURE SERVICE ASTM A-193 STANDARD SPECIFICATION FOR ALLOY STEEL AND STAINLESS STEEL BOLTING MATERIALS FOR HIGH TEMPERATURE SERVICE. ASTM A-194 STANDARD SPECIFICATION FOR CARBON AND ALLOY STEEL NTUS FOR HIGH PRESSURE AND HIGH TEMPERATURE SERVICE. ASTM A-216 STANDARD SPECIFICATION FOR STEEL CASTING, CARBON, SUITABLE FOR FUSION WELDING, FOR HIGH TEMPERATURE SERVICE ASTM A-276 STANDARD SPECIFICATION FOR STAINLESS AND HEAT RESISTING STEEL BARS AND SHAPES ASTM A-320 STANDARD SPECIFICATION FOR ALLOY STEEL BOLTING MATERIALS FOR LOW TEMPERATURE SERVICE ASTM A-350 SATNDARD SPECIFICATION FOR CARBON AND LOW ALLOY STEEL FORGINGS, REQUIRING NOTCH TOUGHNESS TESTING FOR PIPING COMPONENTS ASTM A-351 STANDARD SPECIFICATION FOR CASTING, AUSTENITIC FERRITIC (DUPLEX), FOR PRESSURE CONTAINING PARTS ASTM A-352 STANDARD SPECIFICATION FOR STEEL CASTING, FERRITIC AND MARTENSITIC, FOR PRESSURE CONTAINING PARTS, SUITABLE FOR LOW TEMPERATURE SERVICE ASTM A-515 STANDARD SPECIFICATION FOR PRESSURE VESSEL PLATES, CARBON STEEL, FOR INTERMEDIATE AND HIGHER TEMPERATURE SERVICE NACE STANDARDS AMERICAN SOCIETY FOR TESTING AND MATERIALS NACE MR0175 STANDARD MATERIAL REQUEMENTS SULFIDE STRESS CRACKING RESISTANT METALLIC MATERIALS FOR OILFIELD EQUIPMENT. ANSI/ASME B31.1 ANSI/ASME B31.2 ASME/ANSI B31.3 POWER PIPING. FUEL GAS PIPING. PROCESS PIPING. BOILER AND PRESSURE VESSEL CODE: SECTION II PART A FERROUS MATERIAL SPECIFICATIONS SECTION II PART B NON FERROUS MATERIAL SPECIFICATIONS SECTION II SECTION II PART C SPECIFICATIONS DOR WELDING RODS, ELECTRODES AND FILLER METALS SPECIFICATION SECTION V NONDESTRUCTIVE EXAMINATION SECTION VIII RULES FOR CONSTRUCTION OF PRESSURE VESSELS, DIVISION 1 AND 2 SECTION IX WELDING AND BRAZING QUALIFICATIONS 36

39 Terms and Conditions Acceptance: All quotations for acceptance within 45 days from date of quotation unless extended in writing. In the event a purchase order is placed after this period of time, TWC The Valve Company reserves the right to requote base prices of all valves offered. All orders and contracts are subject to credit approval and acceptance by TWC The Valve Company. Freight: When prices are F.O.B. point of shipment- no freight allowance, Walworth will attempt to route shipments in the method which will result in the lowest cost unless otherwise instructed. All shipments will be freight charges collect except when stipulated on the purchase order in which case the buyer will be invoiced for all transportation charges. Delivery of material to a common carrier shall be considered to be delivery to Buyer and shall be at Buyer s risk thereafter. The Buyer shall file claims of loss of or damage to material in transit directly with the carrier. Prices: There will be added to all prices quoted, any sales, use, occupation, excise or similar tax which Seller may be required to pay or collect in connection with the sale. Seller reserves the right to cancel any order in the event that selling price(s) shall be established by Federal, State or other government regulation with respect to the product(s) covered by the order which shall be lower than the price(s) specified in the order. Escalation Terms: Price shown in the price schedule reflects the cost in effect at the time of publication. These prices will remain firm on all products with a quoted delivery of twenty-six (26) weeks or less. On products which have a schedule delivery of more than twenty-six (26) weeks the goods will be invoiced Based on the applicable price sheet in effect at the time of shipment. In no event will the invoiced price be less than the price originally quoted. Purchased Components: (i.e. motors, gearing, etc.) Prices are quoted on supplier price in effect at time of quotation. Actual invoice price may be adjusted in accordance with the supplier s escalation policy. Deferred Shipments: If for any reason the customer desires to delay shipments more than 30 days after manufacturing complete or to place a hold or stop to the order during the manufacturing cycle. TWC The Valve Company reserves the right to consider the order cancelled and to invoke cancellation charges per the schedule below. Cancellation: After order acceptance by Walworth, items or complete orders may be cancelled and buyer will be charged for work performed, based on the following schedule: Five (5%) percent of price of stock items. Ten ( 10% ) percent of price of stock items ordered in quantities which exceed normal inventory levels. Five ( 5% ) percent of price prior to drawing submittal on made to order items. Fifteen ( 15% ) percent drawing approval, but prior to the start of castings. Thirty (30%) to Fifty (50%) percent during casting cycle, depending on the state of completion. Fifty-five (55%) to Seventy-five (75%) during machining and assembly operations, depending on the state of completion. One hundred (100%) percent after final assembly and test. Remittances: Remittances must be made to the address indicated on the invoice. Credit Terms: As quote. Invoices on balances overdue will be subject to a service charge of One and a half (11/2 %) percent per month on such indebtedness. Deliveries: Shipments and deliveries shall at all times be subject to the approval of Seller s Credit Department. If the Buyer shall fall to make any payments according to the terms of the contract, Seller may in addition to and not in limitation of its other rights and remedies, at its option, cancel all or any part of Buyer s incomplete contracts with Seller or may defer shipments or deliveries under Buyer s contracts with Seller except upon receipt of satisfactory security or for cash before shipment. All schedules of shipment are estimated as closely as possible and Seller will use its best efforts to ship within the time scheduled, but does not guarantee to do so. Schedules commence with the date Seller receives authorization to proceed with the order, subject to the provisions of the next sentence. The order will not be released for manufacture until complete specifications and approved drawings (if drawings approval is required) are received at the plant of manufacture and the estimated schedule of shipment will commence with the date of such receipt. Seller shall not be liable for any direct, indirect or consequential damage or loss caused by any delay in delivery, regardless of the cause of delay. Without limiting the generality of the foregoing, Seller assumes no responsibility for delays in delivery resulting from fire, flood, accidents riots, strikes, transportation delays, labor or material shortages, existing or future laws, acts of any governmental authority, or any other cause beyond Seller s control. Items offered from stock are subject to prior sale. Inspection: Final inspection and acceptance of products must be made at the plant facility, unless otherwise provided in the order and/or in agreed upon specifications. Prices do not include charges for special tests or inspections performed at the request of the Buyer, unless called for in the order and/or in agree upon specifications. Returns: Permission in writing and return tagging instructions must be obtained from Seller before any goods returned for credit or adjustment will be accepted. Where returned goods are accepted, a minimum charge of Twenty five percent (25%) of the invoice price will be made, plus freight from both directions and costs of reconditioning the material for resale as new. Warranty: Seller will replace without charge or refund the purchase price of products manufactured by Seller which prove to be defective in material or workmanship, provided in each case that the product is properly installed and is used in the service for which the Seller recommends it and that written claim, specifying the alleged defect, is presented to Seller within one year from date of shipment. Seller shall in no event be responsible for (a) claims for labor, expenses or other damages occasioned by defective products or (b) for consequential or secondary damages. THE WARRANTY STATED IN THIS PARAGRAPH IS IN LIEU OF ALL OTHER WARRANTIES EITHER EXPRESSED OR IMPLIED. WITH RESPECT TO WARRANTIES THIS PARAGRAPH STATES BUYER S EXCLUSIVE REMEDY AND SELLER S EXCLUSIVE LIABILITY. Design, etc.: Seller reserves the right to change design, materials or specifications without notice. There will be a charge for modifying an order after it has been entered when such change or modification results in additional engineering or clerical work for either TWC The Valve Company or our suppliers. Minimum Charge: Orders totaling less that $ (one hundred 00/100 U.S. CY) net will be billed at a minimum charge of $50.00 (fifty 00/100 U.S. CY) Note: We reserve the right to correct obvious clerical errors in quotations, invoices and other contracts.