Pressure Relief Valves. 1900/P Series. Consolidated Safety Relief Valve

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1 Pressure Relief s 1900/P Series Consolidated Safety Relief

Table of Contents Conversion Table..................................................... 1900/P.2 Features & Benefi ts................................................... 1990/P.3 Scope of Design.

3 Table of Contents Conversion Table /P.2 Features & Benefi ts /P.3 Scope of Design /P.4 Materials 1900/P1 Series (Conventional) /P /P1 Series (Balanced Bellows) /P /P3 Series (Exposed Spring Design) /P.12 Optional material - Stainless /P.13 Accessories Cap and Lever Options /P.14 Cap Options /P.15 Dimensions & Weights /P.16 Pressure/ Temperature Limits /P.22 Capacities /P.36 Confi guration Code /P.39 How to Order a 1900/P Safety Relief /P /P Series Safety Relief 1900/P.1

Conversion Table All the USCS values are converted to Metric values using the following conversion factors: USCS Unit Conversion Factor Metric Unit in. 25.4 mm lb. 0.

4 Conversion Table All the USCS values are converted to Metric values using the following conversion factors: USCS Unit Conversion Factor Metric Unit in mm lb kg in cm 2 ft 3 /min m 3 /min gal/min L/min lb/hr kg/hr psig barg ft lb Nm F 5/9 ( F-32) C 1900/P.2 Dresser Consolidated

The Consolidated type 1900/P Safety Relief is designed to be highly adaptable in order to meet numerous application requirements.

Design flexibility and parts interchangeability accommodates process changes through easy conversion to a variety of designs.

A soft seat design allows to the valve to remain leak free at 95% of set pressure over 100 psig with a backup metal seat for additional safety.

5 The Consolidated type 1900/P Safety Relief is designed to be highly adaptable in order to meet numerous application requirements. Features & Benefits Heavy duty construction provides low cost of ownership by providing longer valve service life, lower maintenance costs and easy valve conversions. Design flexibility and parts interchangeability accommodates process changes through easy conversion to a variety of designs. An optional bellows design is a cost effective solution which compensates for the effects of variable back pressure. A soft seat design allows to the valve to remain leak free at 95% of set pressure over 100 psig with a backup metal seat for additional safety. Standard in both P1 & P3 types, the patented Thermodisc TM Seat is designed for a high degree of seat tightness. Designed for ASME B & PVC, Section I organic fluids, flashing water and limited steam applications. (The P1 & P3 series designs are not for ASME B & PVC, Section I Boiler Drum, Superheater or Reheater applications.) API Standard INLET SIZES 1" (25.4 mm) through 8" (203.2 mm) INLET RATINGS ANSI Class 150 through 2500 OUTLET SIZES 2" (50.8 mm) through 10" (254 mm) OUTLET RATINGS ANSI Class 150 and 300 ORIFICE SIZES Fourteen sizes: D through T TEMPERATURE RANGE 90 F (32 C) to 850 F (454 C) MATERIALS Cast carbon steel body with stainless steel trim is standard. CERTIFICATION ASME B & PVC, Section I - Material (Steam Service) ASME B16.34 and ASME B16.5 API 520, 526 and 527 ISO 4126 NACE MR Standard Material Requirements Pressure Relief s specified within this catalog comply with API Standard 526 Fifth edition, When required for replacement, Consolidated 1900/P valves are also available with connections and dimensions in accordance with supplanted API Standard Third edition 1984 and prior editions. Product variations covered in subsequent pages are noted below: Product Variation Description 1900/P1 Conventional Design /P1 Balanced Bellows Design 1900/P3 Exposed Spring Design 1900/P Series Safety Relief 1900/P.3

6 Scope of Design The 1900/P Series Safety Relief s are for the following applications only: ASME B & PVC, Section I Steam and Flashing Water Applications and Organic Vapor Service The P1 and P3 Series designs are not for ASME B & PVC, Section I Boiler Drum, Superheater or Reheater Applications. 1900/P1 Series Conventional Design: An exclusive with CONSOLIDATED valves, the Eductor Tube removes pressure from the bonnet when the valve is open. D through T orifice sizes. The D & E orifice are restricted lift /P1 Series Balanced Bellows Design: Sealing off the guiding area and upper valve parts protects the internal parts above the bellows from exposure to the process fluid. The balanced bellows also cancels out the effects of variable or constant back pressure at the outlet side. D through T orifice sizes. The D & E orifice are restricted lift. 1900/P3 Series Exposed Spring Design: The spring in this design is exposed for atmospheric cooling. D through T orifice sizes. Standard in all three types, the Thermodisc Seat is designed for a high degree of seat tightness for steam service or organic fluid applications. 1900/P1 Series /P1 Series 1900/P3 Series 1900/P.4 Dresser Consolidated

7 Scope of Design (Contd.) Standard Connection - D Orifice ASME Orifice Area in cm Inlet Outlet Size ANSI Std. Size ANSI Std. in. mm Class in. mm Class Standard Connection - E Orifice ASME Orifice Area in cm Inlet Outlet Size ANSI Std. Size ANSI Std. in. mm Class in. mm Class Standard Connection - F Orifice ASME Orifice Area in cm Inlet Outlet Size ANSI Std. Size ANSI Std. in. mm Class in. mm Class Standard Connection - G Orifice ASME Orifice Area in cm Inlet Outlet Size ANSI Std. Size ANSI Std. in. mm Class in. mm Class /P Series Safety Relief 1900/P.5

8 Scope of Design (Contd.) Standard Connection - H Orifice ASME Orifice Area in cm Inlet Outlet Size ANSI Std. Size ANSI Std. in. mm Class in. mm Class Standard Connection - J Orifice ASME Orifice Area in cm Inlet Outlet Size ANSI Std. Size ANSI Std. in. mm Class in. mm Class Standard Connection - K Orifice ASME Orifice Area in cm Inlet Outlet Size ANSI Std. Size ANSI Std. in. mm Class in. mm Class Standard Connection - L Orifice ASME Orifice Area in cm Inlet Outlet Size ANSI Std. Size ANSI Std. in. mm Class in. mm Class /P.6 Dresser Consolidated

9 Scope of Design (Contd.) Standard Connection - M Orifice ASME Orifice Area in cm Inlet Outlet Size ANSI Std. Size ANSI Std. in. mm Class in. mm Class Standard Connection - N Orifice ASME Orifice Area in cm Inlet Outlet Size ANSI Std. Size ANSI Std. in. mm Class in. mm Class Standard Connection - P Orifice ASME Orifice Area in cm Inlet Outlet Size ANSI Std. Size ANSI Std. in. mm Class in. mm Class Standard Connection - Q Orifice ASME Orifice Area in cm Inlet Outlet Size ANSI Std. Size ANSI Std. in. mm Class in. mm Class Standard Connection - R Orifice ASME Orifice Area in cm Inlet Outlet Size ANSI Std. Size ANSI Std. in. mm Class in. mm Class Standard Connection - T Orifice ASME Orifice Area in cm Inlet Outlet Size ANSI Std. Size ANSI Std. in. mm Class in. mm Class /P Series Safety Relief 1900/P.7

Materials SRV 1900/P1 Series (Conventional) 1900/P1 Series Safety Relief (Conventional) ASME B & PVC, Section I Organic Fluid, Steam & Flashing Water Applications, Flat Seat, High capacity, Stainless

10 Materials SRV 1900/P1 Series (Conventional) 1900/P1 Series Safety Relief (Conventional) ASME B & PVC, Section I Organic Fluid, Steam & Flashing Water Applications, Flat Seat, High capacity, Stainless Trim D & E Orifice only Restricted Lift A A The D and E valves are restricted lift versions of the F orifice valve. The lift is restricted by a limit washer to provide the equivalent effective orifice area for a D or E orifice. This design is available with a balanced bellows configuration and is designed for back pressure applications. Note: For available Cap options see pages 1900/P.14 and 1900/P /P.8 Dresser Consolidated

11 Materials (Contd.) For Steam and Organic Fluids 1900/P1 Series (Conventional) Ref. No. SRV 1900/P1(Conventional) Nomenclature Material 1 1 Base ( ) ASME SA216 WCC CS ( ) ASME SA217 WC6 Alloy 1A Base Plug ( ) Carbon ( ) 316 Stainless 2 Nozzle 316 Stainless 3 Adjusting Ring 316 Stainless 4 Adjusting Ring Pin 316 Stainless 5 Adjusting Ring Pin Gasket Soft Iron 6 Disc (D - K Orifices) Inconel X-750 (L - T Orifices) 616 Stainless 7 Disc Holder 316 Stainless 8 Holder Ring 410 Stainless 9 Holder Ring Retainer Carbon - Nickel Plated 10 Guide Alloy C Guide Gasket Soft Iron 12 Bonnet ASME SA216 WCC CS 13 Bonnet Gasket Soft Iron 14 Base Stud ASME SA193 B7 Alloy 15 Stud Nut ASME SA194 2H Carbon 16 Spindle Spindle Stem 416 Stainless Spindle Head (D - K Orifices) Inconel X-750 (L - T Orifices) 410 Stainless 17 Spring Washer Carbon 18 Spring ( ) Alloy ( ) Tungsten or Inconel X Adjusting Screw 416 Stainless 20 Adjusting Screw Nut 416 Stainless Ref. No. SRV 1900/P1 (Conventional) Nomenclature Material 1 Packed Cap Assembly 21 Packed Cap Carbon 23 Cap Screw Carbon 25 Cap Gasket Soft Iron 26 Release Nut Carbon 27 Release Locknut Carbon 28 Lever Malleable Iron 29 Lifting Fork Malleable Iron 30 Lever Shaft 410/416 Stainless 31 Packing 316 Stainless 2 32 Packing Nut 410/416 Stainless Plain Cap Assembly 22 Plain Cap Malleable Iron 24 Cap Set Screw Carbon 26 Release Nut Carbon 27 Release Locknut Carbon 33 Top Lever Malleable Iron 33A Top Lever Pin Carbon 34 Drop Lever Malleable Iron 34A Drop Lever Pin Carbon Bolted Cap Assembly 35 Bolted Cap Carbon 23 Cap Screw Carbon 25 Cap Gasket Soft Iron Gag Assembly 38 Gag Bolt Carbon 39 Sealing Plug Carbon 40 Sealing Plug Gasket Soft Iron Screwed Cap Assembly 41 Screwed Cap Carbon 25 Cap Gasket Soft Iron Collar (Not Shown) 410 Stainless Retainer Ring (Not Shown) 302 Stainless 42 Eductor Tube 316 Stainless 43 Bonnet Plug Carbon 44 Limit Washer (D-2 & E-2) 316 Stainless Notes: /P1 series designs is not for ASME B & PVC Section I Boiler Drum, Superheater or Reheater applications. 2. with Flexible Graphite Filler (Spiral Wound). 1900/P Series Safety Relief 1900/P.9

Materials (Contd.) SRV 1900-30/P1 Series (Balanced Bellows) 1900-30/P1 Series Safety Relief (Balanced Bellows ) ASME B & PVC, Section I Organic Fluid, Steam & Flashing Water Applications.

12 Materials (Contd.) SRV /P1 Series (Balanced Bellows) /P1 Series Safety Relief (Balanced Bellows ) ASME B & PVC, Section I Organic Fluid, Steam & Flashing Water Applications., Flat Seat, High capacity, Stainless Trim with Backpressure Compensating Bellows. D & E Orifice only Restricted Lift A 34 33A The D and E valves are restricted lift versions of the F orifice valve. The lift is restricted by a limit washer to provide the equivalent effective orifice area for a D or E orifice. This design is available with a balanced bellows configuration and is designed for back pressure applications Note: For available Cap options see pages 1900/P.14 and 1900/P /P.10 Dresser Consolidated

13 Materials (Contd.) For Steam and Organic Fluids /P1 Series (Balanced Bellows) Ref. No. SRV /P1 Series (Balanced Bellows) Nomenclature Material 1 (P1 only) 1 Base ( ) ASME SA216 WCC CS ( ) ASME SA217 WC6 Alloy 1A Base Plug ( ) Carbon ( ) 316 Stainless 2 Nozzle 316 Stainless 3 Adjusting Ring 316 Stainless 4 Adjusting Ring Pin 316 Stainless 5 Adjusting Ring Pin Gasket Soft Iron 6 Disc (D - K Orifices) Inconel X-750 (L - T Orifices) 616 Stainless 7 Disc Holder 316 Stainless 8 Holder Ring 410 Stainless 9 Holder Ring Retainer Carbon - Nickel Plated 10 Guide Alloy C Guide Gasket Soft Iron 12 Bonnet ASME SA216 WCC CS 13 Bonnet Gasket Soft Iron 14 Base Stud ASME SA193 B7 Alloy 15 Stud Nut ASME SA194 2H Carbon 16 Spindle Spindle Stem 416 Stainless Spindle Head (D - K Orifices) Inconel X-750 (L - T Orifices) 410 Stainless 17 Spring Washer Carbon 18 Spring ( ) Alloy ( ) Tungsten or Inconel X Adjusting Screw 416 Stainless 20 Adjusting Screw Nut 416 Stainless Notes: /P1 series designs are not for ASME B & PVC Section I Boiler Drum, Superheater or Reheater applications. 2. with Flexible Graphite Filler (Spiral Wound). Ref. No. SRV /P1 Series (Balanced Bellows) Nomenclature Material 1 (P1 only) Packed Cap Assembly 21 Packed Cap Carbon 23 Cap Screw Carbon 25 Cap Gasket Soft Iron 26 Release Nut Carbon 27 Release Locknut Carbon 28 Lever Malleable Iron 29 Lifting Fork Malleable Iron 30 Lever Shaft 410/416 Stainless 31 Packing 316 Stainless 2 32 Packing Nut 410/416 Stainless Plain Cap Assembly 22 Plain Cap Malleable Iron 24 Cap Set Screw Carbon 26 Release Nut Carbon 27 Release Locknut Carbon 33 Top Lever Malleable Iron 33A Top Lever Pin Carbon 34 Drop Lever Malleable Iron 34A Drop Lever Pin Carbon Bolted Cap Assembly 35 Bolted Cap Carbon 23 Cap Screw Carbon 25 Cap Gasket Soft Iron Gag Assembly 38 Gag Bolt Carbon 39 Sealing Plug Carbon 40 Sealing Plug Gasket Soft Iron Screwed Cap Assembly 41 Screwed Cap Carbon 25 Cap Gasket Soft Iron Collar (Not Shown) 410 Stainless Retainer Ring (Not Shown) 302 Stainless 44 Limit Washer (D-2 & E-2) 316 Stainless 45 Bellows Inconel 625 Bellows Nut 316L Stainless Bellows Flange 316L Stainless 46 Bellows Gasket Soft Iron 47 Seal Plate 304L Stainless 1900/P Series Safety Relief 1900/P.11

14 Materials (Contd.) SRV 1900/P3 Series (Exposed Spring Design) 1900/P3 Series Safety Relief (Exposed Spring Design) ASME B & PVC, Section I Steam Generator Applications., Flat Seat, High capacity, Stainless Trim. D & E Orifice only Restricted Lift A 34 33A The D and E valves are restricted lift versions of the F orifice valve. The lift is restricted by a limit washer to provide the equivalent effective orifice area for a D or E orifice. Note: For available Cap options see pages 1900/P.14 and 1900/P Ref. No. SRV 1900/P3 Series (Conventional) Nomenclature Material (P3) 1&2 10 Guide Alloy C Bonnet (P3-Slotted) ASME SA216 WCC CS 13 Bonnet Gasket N/A 18 Spring Alloy 25 Cap Gasket N/A 25 Cap Gasket N/A 25 Cap Gasket N/A 42 Eductor Tube N/A Notes: 1. All other materials are same as 1900/P1 construction /P3 series designs is not for ASME B & PVC Section I Boiler Drum, Superheater or Reheater applications. 1900/P.12 Dresser Consolidated

15 Materials (Contd.) Optional Material - Stainless Stainless Material Variation Ref. No. Nomenclature Conventional Material (P1 & P3) 1 Base ( ) ASME SA351 CF8M St.St. ( ) ASME SA351 CF8M St.St. 1A Base Plug ( ) 316 Stainless ( ) 316 Stainless 2 Nozzle 316 Stainless 3 Adjusting Ring 316 Stainless 4 Adjusting Ring Pin 316 Stainless 5 Adjusting Ring Pin Gasket Monel 6 Disc (D - K Orifices) Inconel X-750 (L - T Orifices) 616 Stainless 7 Disc Holder 316 Stainless 8 Holder Ring 316 Stainless 9 Holder Ring Retainer PH 15-7 MO Stainless 10 Guide (P1) CF8M 316 SS Boronized (P3) 1 CF8M 316 SS Boronized 11 Guide Gasket Monel 12 Bonnet (P1) ASME SA351 CF8M St.St. (P3-Slotted) 1 ASME SA351 CF8M St.St. 13 Bonnet Gasket (P1 Only) Monel 14 Base Stud ASME SA194 B8M St.St. 15 Stud Nut ASME SA194 8M S.St. 16 Spindle Spindle Stem 316 Stainless Spindle Head (D - K Orifices) Inconel X-750 (L - T Orifices) Inconel X Spring Washer 316 Stainless 18 Spring ( ) Stainless ( ) Tungsten or Inconel X-750 (All P3) PH 19 Adjusting Screw 17-4 PH 20 Adjusting Screw Nut 316 Stainless Packed Cap Assembly 21 Packed Cap 316 Stainless 23 Cap Screw ASME SA193 B8M St.St. 25 Cap Gasket (P1 Only) B8M Stainless 26 Release Nut 316 Stainless 27 Release Locknut 316 Stainless 28 Lever Malleable Iron Stainless Material Variation Ref. No. Nomenclature Conventional Material (P1 & P3) 29 Lifting Fork 316 Stainless 30 Lever Shaft 316 Stainless 31 Packing 316 Stainless 2 32 Packing Nut 316 Stainless Plain Cap Assembly 22 Plain Cap Malleable Iron 24 Cap Set Screw 316 Stainless 26 Release Nut 316 Stainless 27 Release Locknut 316 Stainless 33 Top Lever Malleable Iron 33A Top Lever Pin 316 Stainless 34 Drop Lever Malleable Iron 34A Drop Lever Pin 316 Stainless Bolted Cap Assembly 35 Bolted Cap 316 Stainless 23 Cap Screw ASME SA193 B8M St.st. 25 Cap Gasket (P1 Only) Monel Gag Assembly 38 Gag Bolt Carbon 39 Sealing Plug 316 Stainless 40 Sealing Plug Gasket Monel Screwed Cap Assembly 41 Screwed Cap 316 Stainless 25 Cap Gasket (P1 Only) Monel Collar (Not Shown) 316 Stainless Retainer Ring (Not Shown) 302 Stainless 42 Eductor Tube (P1 Only) Stainless 43 Bonnet Plug Stainless 44 Limit Washer (D-2 & E-2) 316 Stainless Notes: 1. Not present in Bellows construction. All other materials are same for Bellows construction. 2. with Flexible Graphite Filler (Spiral Wound). Stainless Material Variation Ref. No. Nomenclature Bellows Material 1 (P1 only) 45 Bellows Inconel 625 Bellows Nut 316L Stainless Bellows Flange 316L Stainless 46 Bellows Gasket Monel 47 Seal Plate 316L Stainless Notes: 1. All other materials same as Stainless Conventional Material Construction (Only P1) 1900/P Series Safety Relief 1900/P.13

Accessories Cap and Lever Options Packed Lever - P1 Plain Lever - P1 & P3 21 27 26 22 27 33A 26 30 31 32 28 33 29 23

Service 1900/P1 X X X Steam Service Steam Generator 1900/P3 X X Organic Fluid Vapor 1 1900/P1 X X X Notes: 1.

that vapors escaping beyond the valve seat shall not discharge into atmosphere.

16 Accessories Cap and Lever Options Packed Lever - P1 Plain Lever - P1 & P A A Cap Selection Safety Application Screwed Cap 1 Bolted Cap 1 Packed Lever Plain Lever Gag 2 Steam Service 1900/P1 X X X Steam Service Steam Generator 1900/P3 X X Organic Fluid Vapor /P1 X X X Notes: 1. ASME B & PVC, Section I (Part PVG-12) requires the safety valve to be a totally enclosed type that is designed so that vapors escaping beyond the valve seat shall not discharge into atmosphere. Safety valves used to protect organic fluid vaporizers are not to be equipped with lifting levers. 2. All caps may be supplied with a gag. 1900/P.14 Dresser Consolidated

17 Accessories (Contd.) Cap Options Bolted Cap Organic Fluid Vaporizer Application Screwed Cap Organic Fluid Vaporizer Application Cap with Gag /P Series Safety Relief 1900/P.15

18 Dimensions & Weights This table applies to the standard 1900/P Series regardless of materials of construction. If the valve you are reviewing has an inlet or outlet size different from that stated, the dimensions (A) through (E) and weight may not apply. 1900/P1 Series 1900/P3 Series D C D C A ±.063 ± 1.6 mm A ±.063 ± 1.6 mm E E B ±.063 ± 1.6 mm B ±.063 ± 1.6 mm 1900/P.16 Dresser Consolidated

19 Dimensions & Weights (Contd.) Data - D Orifice A B C Conventional (P1 & P3) Bellows (P1) D E Approximate Weight in. mm in. mm in. mm in. mm in. mm in. mm lb kg Data - E Orifice A B C Conventional (P1 & P3) Bellows (P1) D E Approximate Weight in. mm in. mm in. mm in. mm in. mm in. mm lb kg /P Series Safety Relief 1900/P.17

20 Dimensions & Weights (Contd.) Data - F Orifice A B C Conventional (P1 & P3) Bellows (P1) D E Approximate Weight in. mm in. mm in. mm in. mm in. mm in. mm lb kg Data - G Orifice A B C Conventional (P1 & P3) Bellows (P1) D E Approximate Weight in. mm in. mm in. mm in. mm in. mm in. mm lb kg /P.18 Dresser Consolidated

21 Dimensions & Weights (Contd.) Data - H Orifice A B C Conventional (P1 & P3) Bellows (P1) D E Approximate Weight in. mm in. mm in. mm in. mm in. mm in. mm lb kg Data - J Orifice A B C Conventional (P1 & P3) Bellows (P1) D E Approximate Weight in. mm in. mm in. mm in. mm in. mm in. mm lb kg Data - K Orifice A B C Conventional (P1 & P3) Bellows (P1) D E Approximate Weight in. mm in. mm in. mm in. mm in. mm in. mm lb kg /P Series Safety Relief 1900/P.19

22 Dimensions & Weights (Contd.) Data - L Orifice A B C Conventional (P1 & P3) Bellows (P1) D E Approximate Weight in. mm in. mm in. mm in. mm in. mm in. mm lb kg Data - M Orifice A B C Conventional (P1 & P3) Bellows (P1) D E Approximate Weight in. mm in. mm in. mm in. mm in. mm in. mm lb kg Data - N Orifice A B C Conventional (P1 & P3) Bellows (P1) D E Approximate Weight in. mm in. mm in. mm in. mm in. mm in. mm lb kg /P.20 Dresser Consolidated

23 Dimensions & Weights (Contd.) Data - P Orifice A B C Conventional (P1 & P3) Bellows (P1) D E Approximate Weight in. mm in. mm in. mm in. mm in. mm in. mm lb kg Data - Q Orifice A B C Conventional (P1 & P3) Bellows (P1) D E Approximate Weight in. mm in. mm in. mm in. mm in. mm in. mm lb kg Data - R Orifice A B C Conventional (P1 & P3) Bellows (P1) D E Approximate Weight in. mm in. mm in. mm in. mm in. mm in. mm lb kg Data - T Orifice A B C Conventional (P1 & P3) Bellows (P1) D E Approximate Weight in. mm in. mm in. mm in. mm in. mm in. mm lb kg /P Series Safety Relief 1900/P.21

24 Pressure and Temperature Selection Chart for Steam Service 1900 & P1 & P3 Series D Orifice Pressure Temperature Ratings for D Orifice API Ratings, D Orifice in 2 (0.710 cm 2 ) Backpressure 100ºF (37.8ºC) Standard Material of Construction Conventional Bellows 100ºF (37.8ºC) Saturated Steam 800ºF (426.7ºC) 850ºF (454.4ºC) (P1 and P3) (P1 Only) psig barg psig barg psig barg psig barg psig barg psig barg 1905D D D D D D D D D D D D D 1922D 1924D 1926D 1928D INLET TEMPERATURE F Tungsten or Inconel Alloy D 1905D 1910D 1912D 1914D 1916D 1918D *P3 Alloy Spring - all temperature ratings SET PRESSURE - lbs. per Sq. in. P1/ P3* 1900/P.22 Dresser Consolidated

25 Pressure and Temperature (Contd.) Selection Chart for Steam Service 1900 & P1 & P3 Series E Orifice Pressure Temperature Ratings for E Orifice API Ratings, E Orifice in 2 (1.265 cm 2 ) Backpressure 100ºF (37.8ºC) Standard Material of Construction Conventional Bellows 100ºF (37.8ºC) Saturated Steam 800ºF (426.7ºC) 850ºF (454.4ºC) (P1 and P3) (P1 Only) psig barg psig barg psig barg psig barg psig barg psig barg 1905E E E E E E E E E E E E E 1922E 1924E 1926E 1928E INLET TEMPERATURE F Tungsten or Inconel Alloy E 1905E 1910E 1912E 1914E 1916E 1918E *P3 Alloy Spring - all temperature ratings SET PRESSURE - lbs. per Sq. in. P1/ P3* 1900/P Series Safety Relief 1900/P.23

26 Pressure and Temperature (Contd.) Selection Chart for Steam Service 1900 & P1 & P3 Series F Orifice Pressure Temperature Ratings for F Orifice API Ratings, F Orifice in 2 (1.981 cm 2 ) Backpressure 100ºF (37.8ºC) Standard Material of Construction Conventional Bellows 100ºF (37.8ºC) Saturated Steam 800ºF (426.7ºC) 850ºF (454.4ºC) (P1 and P3) (P1 Only) psig barg psig barg psig barg psig barg psig barg psig barg 1905F F F F F F F F F F F F F 1922F 1924F 1926F 1928F INLET TEMPERATURE F Tungsten or Inconel Alloy F 1905F 1910F 1912F 1914F 1916F 1918F *P3 Alloy Spring - all temperature ratings SET PRESSURE - lbs. per Sq. in. P1/ P3* 1900/P.24 Dresser Consolidated

27 Pressure and Temperature (Contd.) Selection Chart for Steam Service 1900 & P1 & P3 Series G Orifice Pressure Temperature Ratings for G Orifice API Ratings, G Orifice in 2 (3.245 cm 2 ) Backpressure 100ºF (37.8ºC) Standard Material of Construction Conventional Bellows 100ºF (37.8ºC) Saturated Steam 800ºF (426.7ºC) 850ºF (454.4ºC) (P1 and P3) (P1 Only) psig barg psig barg psig barg psig barg psig barg psig barg 1905G G G G G G G G G G G G G 1922G 1924G 1926G 1928G INLET TEMPERATURE F Tungsten or Inconel Alloy G 1906G 1910G 1912G 1914G 1916G 1918G P1/ P3* *P3 Alloy Spring - all temperature ratings SET PRESSURE - lbs. per Sq. in. 1900/P Series Safety Relief 1900/P.25

28 Pressure and Temperature (Contd.) Selection Chart for Steam Service 1900 & P1 & P3 Series H Orifice Pressure Temperature Ratings for H Orifice API Ratings, H Orifice in 2 (5.065 cm 2 ) Backpressure 100ºF (37.8ºC) Standard Material of Construction Conventional Bellows 100ºF (37.8ºC) Saturated Steam 800ºF (426.7ºC) 850ºF (454.4ºC) (P1 and P3) (P1 Only) psig barg psig barg psig barg psig barg psig barg psig barg 1905H H H H H H H H H H H 1922H 1924H 1926H INLET TEMPERATURE F Tungsten or Inconel Alloy H 1905H 1910H 1912H 1914H 1916H *P3 Alloy Spring - all temperature ratings SET PRESSURE - lbs. per Sq. in. P1/ P3* 1900/P.26 Dresser Consolidated

29 Pressure and Temperature (Contd.) Selection Chart for Steam Service 1900 & P1 & P3 Series J Orifice Pressure Temperature Ratings for J Orifice API Ratings, J Orifice in 2 (8.303 cm 2 ) Backpressure 100ºF (37.8ºC) Standard Material of Construction Conventional Bellows 100ºF (37.8ºC) Saturated Steam 800ºF (426.7ºC) 850ºF (454.4ºC) (P1 and P3) (P1 Only) psig barg psig barg psig barg psig barg psig barg psig barg 1905J J J J J J J J J J J 1922J 1924J 1926J INLET TEMPERATURE F Tungsten or Inconel Alloy J 1906J 1910J 1912J 1914J 1916J P1/ P3* *P3 Alloy Spring - all temperature ratings SET PRESSURE - lbs. per Sq. in. 1900/P Series Safety Relief 1900/P.27

30 Pressure and Temperature (Contd.) Selection Chart for Steam Service 1900 & P1 & P3 Series K Orifice Pressure Temperature Ratings for K Orifice API Ratings, K Orifice in 2 ( cm 2 ) Backpressure 100ºF (37.8ºC) Standard Material of Construction Conventional Bellows 100ºF (37.8ºC) Saturated Steam 800ºF (426.7ºC) 850ºF (454.4ºC) (P1 and P3) (P1 Only) psig barg psig barg psig barg psig barg psig barg psig barg 1905K K K K K K K K K K K 1922K 1924K 1926K INLET TEMPERATURE F Tungsten or Inconel Alloy K 1905K 1910K 1912K 1914K 1916K P1/ P3* *P3 Alloy Spring - all temperature ratings SET PRESSURE - lbs. per Sq. in. 1900/P.28 Dresser Consolidated

31 Pressure and Temperature (Contd.) Selection Chart for Steam Service 1900 & P1 & P3 Series L Orifice Pressure Temperature Ratings for L Orifice API Ratings, L Orifice in 2 ( cm 2 ) Backpressure 100ºF (37.8ºC) Standard Material of Construction Conventional Bellows 100ºF (37.8ºC) Saturated Steam 800ºF (426.7ºC) 850ºF (454.4ºC) (P1 and P3) (P1 Only) psig barg psig barg psig barg psig barg psig barg psig barg 1905L L L L L L L L L L L 1922L 1924L 1926L INLET TEMPERATURE F Tungsten or Inconel Alloy L 1906L 1910L 1912L 1914L 1916L P1/ P3* *P3 Alloy Spring - all temperature ratings SET PRESSURE - lbs. per Sq. in. 1900/P Series Safety Relief 1900/P.29

32 Pressure and Temperature (Contd.) Selection Chart for Steam Service 1900 & P1 & P3 Series M Orifice Pressure Temperature Ratings for M Orifice API Ratings, M Orifice in 2 ( cm 2 ) Backpressure 100ºF (37.8ºC) Standard Material of Construction Conventional Bellows 100ºF (37.8ºC) Saturated Steam 800ºF (426.7ºC) 850ºF (454.4ºC) (P1 and P3) (P1 Only) psig barg psig barg psig barg psig barg psig barg psig barg 1905M M M M M M M M M 1922M 1924M INLET TEMPERATURE F Tungsten or Inconel Alloy M 1905M 1910M 1912M 1914M P1/ P3* SET PRESSURE - lbs. per Sq. in. *P3 Alloy Spring - all temperature ratings 1900/P.30 Dresser Consolidated

33 Pressure and Temperature (Contd.) Selection Chart for Steam Service 1900 & P1 & P3 Series N Orifice Pressure Temperature Ratings for N Orifice API Ratings, N Orifice in 2 ( cm 2 ) Backpressure 100ºF (37.8ºC) Standard Material of Construction Conventional Bellows 100ºF (37.8ºC) Saturated Steam 800ºF (426.7ºC) 850ºF (454.4ºC) (P1 and P3) (P1 Only) psig barg psig barg psig barg psig barg psig barg psig barg 1905N N N N N N N N N 1922N 1924N INLET TEMPERATURE F Tungsten or Inconel Alloy N 1905N 1910N 1912N 1914N P1/ P3* *P3 Alloy Spring - all temperature ratings SET PRESSURE - lbs. per Sq. in. 1900/P Series Safety Relief 1900/P.31

34 Pressure and Temperature (Contd.) Selection Chart for Steam Service 1900 & P1 & P3 Series P Orifice Pressure Temperature Ratings for P Orifice API Ratings, P Orifice in 2 ( cm 2 ) Backpressure 100ºF (37.8ºC) Standard Material of Construction Conventional Bellows 100ºF (37.8ºC) Saturated Steam 800ºF (426.7ºC) 850ºF (454.4ºC) (P1 and P3) (P1 Only) psig barg psig barg psig barg psig barg psig barg psig barg 1905P P P P P P P P P 1922P 1924P INLET TEMPERATURE F Tungsten or Inconel Alloy P 1905P 1910P 1912P 1914P P1/ P3* *P3 Alloy Spring - all temperature ratings SET PRESSURE - lbs. per Sq. in. 1900/P.32 Dresser Consolidated

35 Pressure and Temperature (Contd.) Selection Chart for Steam Service 1900 & P1 & P3 Series Q Orifice Pressure Temperature Ratings for Q Orifice API Ratings, Q Orifice in 2 ( cm 2 ) Standard Material of Construction Backpressure 100ºF (37.8ºC) Conventional (P1 and P3) Bellows (P1 Only) 100ºF (37.8ºC) Saturated Steam 800ºF (426.7ºC) 850ºF (454.4ºC) psig barg psig barg psig barg psig barg psig barg psig barg 1905Q Q Q Q Q Q Q 1922Q INLET TEMPERATURE F Tungsten or Inconel Alloy Q or 1906Q 1906Q 1910Q 1912Q P1/ P3* *P3 Alloy Spring - all temperature ratings SET PRESSURE - lbs. per Sq. in. 1900/P Series Safety Relief 1900/P.33

36 Pressure and Temperature (Contd.) Selection Chart for Steam Service 1900 & P1 & P3 Series R Orifice Pressure Temperature Ratings for R Orifice API Ratings, R Orifice in 2 ( cm 2 ) Backpressure 100ºF (37.8ºC) Standard Material of Construction Conventional (P1 and P3) Bellows (P1 Only) 100ºF (37.8ºC) Saturated Steam 800ºF (426.7ºC) 850ºF (454.4ºC) psig barg psig barg psig barg psig barg psig barg psig barg 1905R R R R R R R 1922R INLET TEMPERATURE F Tungsten or Inconel Alloy R or 1906R 1906R 1910R 1912R P1/ P3* *P3 Alloy Spring - all temperature ratings SET PRESSURE - lbs. per Sq. in. 1900/P.34 Dresser Consolidated

37 Pressure and Temperature (Contd.) Selection Chart for Steam Service 1900 & P1 & P3 Series T Orifice Pressure Temperature Ratings for T Orifice API Ratings, T Orifice in 2 ( cm 2 ) Backpressure 100ºF (37.8ºC) Standard Material of Construction Conventional Bellows 100ºF (37.8ºC) Saturated Steam 800ºF (426.7ºC) 850ºF (454.4ºC) (P1 and P3) (P1 Only) psig barg psig barg psig barg psig barg psig barg psig barg 1905T T T T T T T 1922T INLET TEMPERATURE F Tungsten or Inconel Alloy T or 1906T 1910T 1912T P1/ P3* *P3 Alloy Spring - all temperature ratings SET PRESSURE - lbs. per Sq. in. 1900/P Series Safety Relief 1900/P.35

38 Capacities Orifice Designation Orifice Area Set Pressure Capacity for ASME B&PV Code Section I, for Saturated Steam 1 Capacities Based on based at 10% overpressure or 3 psig (0.21 barg), whichever is greater, showing 90% of actual capacity in accordance with latest ASME Code requirements. D E F G H J K in 2 cm 2 in 2 cm 2 in 2 cm 2 in 2 cm 2 in 2 cm 2 in 2 cm 2 in 2 cm Orifice Capacity psig barg lb/hr kg/hr lb/hr kg/hr lb/hr kg/hr lb/hr kg/hr lb/hr kg/hr lb/hr kg/hr lb/hr kg/hr Notes: 1. Refer to page 1900P.38 for correction factor applied for superheated steam. 2. The following Napier factor is applied to the capacity of pressures greater than 1520 psig ( barg):.1906 x P psia x P psia /P.36 Dresser Consolidated

39 Capacities (Contd.) Orifice Designation Orifice Area Set Pressure Capacity for ASME B&PV Code Section I, for Saturated Steam 1 Capacities Based on based at 10% overpressure or 3 psig (0.21 barg), whichever is greater, showing 90% of actual capacity in accordance with latest ASME Code requirements. L M N P Q R T in 2 cm 2 in 2 cm 2 in 2 cm 2 in 2 cm 2 in 2 cm 2 in 2 cm 2 in 2 cm Orifice Capacity psig barg lb/hr kg/hr lb/hr kg/hr lb/hr kg/hr lb/hr kg/hr lb/hr kg/hr lb/hr kg/hr lb/hr kg/hr Notes: 1. Refer to page 1900/P.38 for correction factor applied for superheated steam. 2. The following Napier factor is applied to the capacity of pressures greater than 1520 psig ( barg):.1906 x P psia x P psia /P Series Safety Relief 1900/P.37

40 Capacities (Contd.) Superheat Correction Factor 1&2 Total Temp. ( F ) Flowing Pressure 3 (psia) Superheat Correction Factor K sh Notes: 1. For capacity on superheated steam, multiply saturated steam capacity by correction factor. 2. Convert set pressure from (psig) to (psia) fl owing pressure. 3. psia fl owing = [set pressure psig x overpressure] /P.38 Dresser Consolidated

41 Configuration Code MATERIAL CLASS INTERCHANGEABILITY DEVIATION FROM STANDARD BONNET TYPE SEAT DESIGN ORIFICE LEVER/CAP DESIGN BELLOWS SELECTION INLET FACING PRESSURE CLASS SERVICE VALVE TYPE GUIDE SURFACE COATING D - P1-5 - CC - TD RF - SS E P3 S4 * 32 RJ DT G1 10 F SP 33 LM G2 12 G SPEC 34 SM G3 14 H 37 LF 16 J SF 18 K LT 20 L ST 22 M LG 24 N SG 26 P LJ 28 Q BW R GL T OC 1900/P Series Safety Relief 1900/P.39

42 Configuration Code (Contd.) Pressure Class Bellows Selection Interchangeability Designation Class Designation Range Designation Non Bellows 30 Bellows 5 Applies to all orifi ces Seat Design Designation TD Thermodisc Lever/Cap Design Designation 31 Screwed 32 Bolted 33 Packed 34 Plain 37 Air Operated Service Designation SS Steam Bonnet Designation Range P1 Closed Bonnet DT Dowtherm P3 Open Bonnet Guide Surface Coating Material Class Variations Designation Part Coated Designation Variation G1 Glide-Aloy Disc Holder CC Standard Material G2 G3 Glide-Aloy Guide Glide-Aloy Disc Holder and Guide S4 Stainless (Complete ) Standard Connection Orifice Area (API) Area (ASME) in 2 cm 2 in 2 cm 2 D E F G H J K L M N P Q Inlet Flange Facing Designation Facing RF Raised Face Serrated RJ Ring Joint LM Large Male SM Small Male LF Large Female SF Small Female LT Large Tongue ST Small Tongue LG Large Groove SG Small Groove LJ Lens Joint BW Butt Weld R T GL OC Grayloc Oteco 1900/P.40 Dresser Consolidated

43 How to Order a 1900/P Safety Relief Specification Sheet Page of Requisition No. Job No. Date Revised By General 1. Item Number: 2. Tag Number: 3. Service, Line or Equipment No: 4. Number Required: Basis of Selection 5. Code: ASME Sec. I OTHER Specify: 6. Comply with API 526: YES NO 7. Fire OTHER Specify: 8. Rupture Disk: YES NO Design 9. : Safety Relief 10. Design: Conventional Bellows Closed Bonnet Yoke/Open Bonnet Metal Seat Resilient Seat API 527 Seat Tightness OTHER Specify: Connections 11. Inlet Size: Rating: Facing: Outlet Size: Rating: Facing: 12. OTHER Specify: Materials 13. Body/Bonnet: 14. Guide/Rings: 15. Seat Material: Metal: Resilient: 16. Bellows: 17. Spring: 18. Comply with NACE MRO 175 YES NO 19. OTHER Specify: 20. Cap and Lever Selection Screwed Cap (Standard) Bolted Cap Plain Lever Packed Lever Gag 21. OTHER Specify: Service Conditions 22. Fluid and State: 23. Required Capacity per & Units: 24. Molecular Weight or Specific Gravity: 25. Viscosity at Flowing Temperature & Units: 26. Operating Pressure & Units: 27. Blowdown: Standard Other 28. Latent Heat of Vaporization & Units: 29. Operating Temperature & Units: 30. Relieving Temperature & Units: 31. Built-up Back Pressure & Units: 32. Superimposed Back Pressure & Units: 33. Cold differential Test Pressure & Units: 34. Allowable Overpressure in Percent or Units: 35. Compressibility Factor, Z: 36. Ratio of Specific Heats: Sizing and Selection 37. Calculated Orifice Area: in 2 cm Selected Orifice Area: in 2 cm Orifice Designation (letter): 40. Manufacturer: 41. Model Number: 42. Vendor Calculations Required: YES NO 1900/P Series Safety Relief 1900/P.41

1982 Series. Consolidated * Valves. Safety Relief Valve

1982 Series. Consolidated * Valves. Safety Relief Valve GE Oil & Gas Technical Specifications 08/2014 Consolidated * Valves 1982 Series Safety Relief Valve A unique design that combines top performance, capabilities and features within an economical, modular