Air-Pro Compressed Air Piping System

Transcription

1 TM Air-Pro Compreed Air Piping Sytem

2 TM Air-Pro Compreed Air Piping Sytem Table of Content Material Propertie Page 3 Chemical Reitance Page 4 Intallation Tip Page 5 Welding Method & Tip Page 9 Sample Specification Page 10 Dimenional Guideline Page 11 Nomogram Page 18 Warranty Page 19 2 Web ite: aahi@aahi-america.com Air-Pro Piping Sytem 01-09

3 TM Air-Pro Compreed Air Piping Sytem TM The Air-Pro piping ytem i pecifically contructed for compreed air. Corroion reitant to compreor ynthetic oil and mineral oil, light weight, quic intallation, and minimal ytem preure drop, Air-Pro i the ytem of choice in numerou compreed air application. Material Propertie Advantage of PE 100 in compreed-air upply Excellent reitance to compreor oil and aggreive ambient air Superior tre cracing reitance igh creep rupture trength igh preure load reitance PN 16 at 20 C Wide temperature range (between 30 C and +60 C) Exceptional weldability Eay, clean, rapid and afe intallation Corroion reitant (compreed air not polluted by corroive depoit from the piping) Air-Pro Feature: Available in ize ½ to 12 with ocet, butt and electrofuion fitting in a variety of tyle including tee, reducing tee, 90, 45 Fat, low-cot intallation Operating preure from 150 to 230 pi Contructed from pecially-engineered (Solvay Eltex TUB 124 blue) PE100 high-denity polyethylene (DPE) rein, which i extremely ductile, light weight and corroion reitant Chemically reitant to compreor ynthetic oil and mineral oil that traditionally attac glued and metal ytem ow frictional reitance reulting in decreaed preure drop and increaed flow rate when compared to metal pipe of the ame internal diameter ower flow noie level compared to pipe made from other material Additional propertie ow pecific weight of 0.96g/cm 3 (PVC 1.40g/cm 3, teel 7.86 g/cm³) Very good chemical reitance Excellent reitance to rapid crac growth igh weathering reitance No electrical conductivity Outtanding abraion reitance No depoit nor growth Frot reitant Very good thermal inulating property Rodent reitant Reitant to any microbial corroion Web ite: aahi@aahi-america.com Air-Pro Piping Sytem

4 Chemical Reitance PE 100 provide an excellent chemical reitance to a multitude of media baed on acid, alalie and hydrocarbon. A a reult, polyethylene ha been accepted a an excellent material ued for indutrial piping ytem. The humidity that often form in a compreed-air ytem (which can caue coniderable problem in metallic piping) ha no negative impact on the above poitive propertie. Special emphai i to be put on the reitance to compreor oil, which uually i conidered a eriou problem for ome other platic (e.g. ABS). Chemical Reitance Guideline In cae of doubt, our Engineering Department i available to help you to ae the media and to upport you in the planning and deign proce. The reitance of any other ealing material i of great importance for the chemical reitance of a compreed-air piping ytem and it mut be dimenioned appropriately. We recommend to ue gaet made from NBR a a tandard. Thi applie to profile pacing for flange connection a well a to gaet in hut-off device (ball valve and hut-off butterfly valve). For thread adaptor we recommend the ue of a PTFE tape on threaded connection. Depending on the reitance required we are able to upply alternative ealing material. In the event that the ambient air contain aggreive media, it i required to carry out a eparate teting of the ealing material. In thi cae, pleae do not heitate to contact our Engineering Department for further aitance. There are of coure ome limitation uch a contact with free chlorine or olvent at high temperature. Material Propertie Chart Mechanical Propertie Thermal Propertie Electrical Propertie Property Standard Unit PE100 Specific denity at 23 C ISO 1183 g/cm 3 0,95 ISO 1133 g/10min Melt flow index MFR 190/5 MFI range ISO1872/1873 0,5 T003 Tenile tre at yield ISO 527 MPa 25 Elongation at yield ISO 527 % 9 Elongation at brea ISO 527 % >600 Impact trength unnotched at +23 C no brea ISO 179 J/m 2 Impact trength unnotched at -30 C no brea Impact trength notched at +23 C 16 Impact trength notched at 0 C Impact trength notched at -30 C ISO 179 J/m 2 6 Ball indentation hardne acc. Rocw ell ISO MPa 46 Flexural trength (3,5% flexural tre) ISO 178 MPa 24 Modulu of elaticity ISO 527 MPa 1100 Vicat-Softening point VST/B/50 ISO 306 C 77 eat deflection temperature DT/B ISO 75 C 75 inear coefficient of thermal expanion DIN K -1 x ,8 Thermal conductivity at 20 C DIN W/(mxK) 0,4 Flammability U94 DIN B B2 Specific volume reitance VDE 0303 OM cm >10 16 Specific urface reitance VDE 0303 OM >10 13 Relative dielectric contant at 1 Mz DIN ,3 Dielectric trength VDE 0303 V/mm 70 Phyiologically non-toxic EEC 90/ Ye FDA Ye Color blue 4 Web ite: aahi@aahi-america.com Air-Pro Piping Sytem 01-09

5 Intallation Tip Compared to the piping ytem made from metal, the intallation of Aahi/America Air-Pro piping ytem diplay ome ignificant difference. Supporting ditance Intallation Guideline The upport ditance normally depend on the mechanical propertie of the pipe material, the pipe dimenion, the pecific weight of the flow media, the operating temperature and the piping layout. The upport ditance hown in the table refer to compreed air ued a flow medium with a denity of 1.3 g/m³. Prevent mechanical tre (bending and puhing) of the pipe during intallation at temperature of around 41 F/5 C. Intallation carried out at temperature below 41 F/5 C are not recommended. The intallation intruction hould be complied with during intallation. Therefore, we recommend every intaller i trained in the correct technique for laying and welding of the Air-Pro product. Preure teting Any newly-intalled piping ytem mut be preureteted before being commiioned. The calculation of the upport ditance i baed on a maximum deflection between two pipe clip of /500. To achieve wider upport ditance epecially in the cae of maller diameter (dia 20 40mm) pipe holder for continuou pipe upport can be ued. In the cae of vertical piping the pecified ditance can be increaed by about 50%. To achieve the optimum pipe upport uitable for platic we recommend the ue of our pipe clip.thee are made from polypropylene and have been developed epecially for platic piping ytem. Before carrying out the preure tet let the weld joint cool down completely (thi tae le than 30 minute after the lat weld, depending on ize). The preure tet i to be carried out according to the relevant tandard (e.g. DVS 2210, part 1, ASME B31.3). The required tet preure typically amount to 1.5 x operating preure. During the preure tet provide uitable protection to prevent ambient temperature change (due to inulation). A a tet medium we recommend water. Supporting Ditance Chart Pipe Diameter Wall Thicne 20 C / 68 F 30 C / 86 F 40 C / 104 F 50 C / 122 F 60 C / 140 F mm in mm in in in in in in 20 1/2" / " /4" /2" " /2" " " Web ite: aahi@aahi-america.com Air-Pro Piping Sytem

6 Air-Pro TM Intallation Guideline Change of length due to thermal expanion Platic ha the property of expanding under heat. The calculation of the change in length of Air-Pro pipe i baed on the following formula: = T = change in length due to the temperature change [in] = linear expanion coefficient [in/in/ F]] T = difference in temperature [ F] = pipe length [in] The temperature difference reult from the difference between intallation temperature and the maximum and minimum pipe wall temperature (intallation, operation, hut down). Calculation of minimum traight length (following DVS 2210, part1) Change in length are caued by a changing operating temperature. Axial movement compenation hould be provided outide the intalled pipe. In many cae the change in the direction of the flow can be ued to compenate change in the length. Pretreing method - Intallation For thi method it i required to enter /2 to calculate the minimum traight length, a part of the change in length a compenated by pretreing by /2. Thi mean that in practice the bent ide i already pretreed by half of the change in length /2. Advantage of the pretreing method The minimum traight length can be reduced. Perfect intallation during operation, a the expanion i hardly viible. The minimum traight length i baed on the following : S=C da S = minimum traight length [mm] da = pipe outide diameter [mm] = change in length [mm] C = material-baed contant for PE 100 = 26 6 Web ite: aahi@aahi-america.com Air-Pro Piping Sytem 01-09

7 TM Air-Pro Intallation Guideline Diagram howing minimum traight length S Example: Temperature difference (operating and intallation temperature) DT: 25 C ength of pipe: = 13 m Theoretical longitudinal expanion: D: 58.5 mm For the minimum traight length of a pipe Ø 90 mm pleae tart with diagram 2 to calculate the change in length. Afterward pleae follow the vertical line to the diagram 1, up to the interection of the pipe Ø 90 mm line and than turn to the left. Minimum traight length: S = 1887 mm 2' 2' 2' P >P WK J Q WO K J WUD V P X P Q P ' 2' 2' 2' 2' Diagram # 1 FKDQJQOQJWK>PP@ m 2m 3m 4m 5m 6m 7m 8m 9m 10m 11m 12m 13m 14m 15m pipe length Diagram # 2 20m 25m 30m 35m 40m 45m 50m 10 58, change in length [mm] Web ite: aahi@aahi-america.com Air-Pro Piping Sytem

8 TM Air-Pro Condenate Drain Apart from the minimum traight length and expanion bend required for change in length, there are alo flow deviation ued which erve a conumer protection. The o-called gooe-nec i often ued for the intallation of tee from the main piping to the point of ue connection. Thi prevent the condenate that i formed due to temperature and preure change (epecially in the cae of ytem without effective air drying), from reaching the connection and thu from corroding and damaging the equipment. Baically there are 2 poibilitie of prevention: Verion 1 - Gooe Nec A poible intallation i hown by the figure below. Thi verion i the mot cot-effective of the verion detailed and offer ufficient protection in mot cae. Verion 2 - Water Drain Thi method offer a maximum of protection for the connected device and hould be intalled in the cae of complicated device. Intallation Guideline Preparation before welding tapping addle Open the tapping addle and place around the deired welding area. Align the location of the tapping addle a required. A clamping device i required in order to properly loc the addle in place. Proper eating tenion i controlled by mean of the clamping device. A red indicator i raied a the required preure i reached. Performing the welding proce Enure the tapping addle i in the deired location and connect the lead from the electro-fuion machine to the tapping addle. The Polymatic electro-fuion tool will viually confirm proper connection once achieved. Each tapping addle i provided with a welding bar code. The bar code i canned into the Polymatic and an audio ignal will acnowledge the data input. After the welding parameter have been fed in, the trademar, dimenion and outide temperature are hown on the diplay. The operator now confirm thee value. During the whole welding proce (including cooling time) the clamping device hall remain intalled. The end of the welding proce i indicated by an audio ignal. The clamping device i removed after 20 minute. The entire cooling period hould be hould be followed prior to tapping. Tapping of the tapping valve Once the cooling time i up, under preure tapping may begin. owever, tapping hould only be completed after intallation of the branch line ha been completed. The cutter, being an integrated part of the tapping valve, i turned clocwie by the repective tapping attachment until it reache the top. A oon a the pipe ha been tapped thi way, the cutter i turned bac, now allowing the pipe to be connected. The proce i now complete. Standard tapping addle branch line will now remain open. Intallation of tapping addle with integral valve allow the branch line to be turned off and on a required. Screwed Connection Thread part with metal inert Example of gooe-nec deign Tapping Saddle Preparation of welding eam, the welding area mut be craped in order to remove the oxidized layer. A craper nife eaily accomplihed thi ta. When connection to male or female thread are required, enure that the full effective thread length i engaged and that an appropriate ealing material uch a PTFE tape ha been ued. Note: The tightening torque mut not exceed 29.5 lb.ft. After craping, the welding area and tapping addle weld zone hould be cleaned with a cleaning olvent uch a iopropyl alcohol. Remove reidue of cleaning agent or condenation water with clean\aborbent paper. AR Thread depth (AR) Example of tapping addle intallation 8 Web ite: aahi@aahi-america.com Air-Pro Piping Sytem 01-09

9 Welding Method & Tip The quality of the welded joint depend on the qualification of the welder, the uitability of the machine and appliance a well a the compliance of the welding guideline. The welding joint can be checed through non detructive and / or detructive method. The welding proce hould be upervied. Method and ize of the uperviion mut be agreed from the partie. It i recommended to document the method data in welding protocol or on data medium. SOCKET FUSION Benefit of Socet Fuion Equipment i ight Weight Maneuverable in Tight Retraint Material i ight Weight Flexible & Bendable Require No Prior Experience When uing ocet welding, pipe and fitting are lap-welded. The pipe end and fitting ocet are heated up to welding temperature by mean of a ocet-lie and pigot-lie heating element and afterward, they are joined. Intallation Guideline BASIC WEDING OPTIONS: SIZE RANGE: Socet Fuion (1/2-4") Electrofuion (1/2-12") Butt Fuion (6-12") PRESSURE RANGE: 230 pi at 70 F mm(1/2-4") Socet Fuion 150 pi at 70 F mm (6-12") Butt & all Electrofuion SOCKET WEDING TIPS: cleaning of the pipe and the fitting. Bevel or Peel dependent upon ize preing the pipe and the fitting on the heating element for preheating remove and join the pipe and fitting together eaving the joint without load during the cooling time viual control of the joint recommended procedure: by hand up to OD 40 mm (1¼ ) ue welding equipment for dimenion > OD 40 mm (1¼ ) EECTROFUSION Benefit of Electrofuion Excellent for tight quarter Perfect repair, addition and change EECTROFUSION WEDING PREPARATION TIPS: Mar Depth Secure and Connect ead With electricofuion welding, pipe and fitting are welded by mean of reitance wire which are located within the electrofuion ocet. A tranformer for welding purpoe upplie electric power. The hrining tre of the electrofuion fitting create the neceary welding preure which guarantee an optimal weld. The method ditinguihe itelf by an extra-low afety voltage a well a by high automatization. Peel Surface Clean Weld Area Inert and Align Scan Bar Code Start Weld BUTT FUSION Benefit of Butt Fuion Eay machine operation Fitting can be re-ued Eay line repair Quality can be inpected The welding face of the part to be joined are aligned under preure onto the heating element (alignment). Then, the part are heated up to the welding temperature under reduced preure (pre-heating) and joined under preure after the heating element ha been removed (joining). PREPARATION TYPICA BUTT FUSION WED: PRE-EATING FINISED JOINT Web ite: aahi@aahi-america.com Air-Pro Piping Sytem

10 Sample Specification Sample Specification 1.0 Scope: All requirement are for Air-Pro (DPE) high preure rated compreed air pipe and fitting. Applicable to application that require the tranport of compreed air. 2.0 Material: Pipe and fitting material hall be made of the Solvay Eltex TUB 124 blue high denity polyethylene material according to ASTM D All component hall be molded or extruded according to ASTM D Pipe: Pipe hall conform to the requirement of ASTM D for etablihing a hydrotatic bai. In addition, the pipe hall be a dimenional ratio (SDR) pipe with a wall thicne to meet or exceed 230 pi at 68 degree F for piping through 4 normal diameter. 3.1 Pipe hall be provided by Aahi/America Inc with no approved equal. 4.0 Fitting: Preure fitting hall conform to the ame requirement a outlined for piping in guideline 3.0 and 3.1. In addition, all fitting through 4 hall be injected molded. 5.0 Pipe Joining Procedure: All pipe and fitting up to 4 hall be prepared uing ocet fuion technique a outlined in ASTM D 2657 ection 8. The temperature, time and preure of fuion hall be according to the printed literature of Aahi/America Inc. 5.1 Pipe Joining Equipment: Pipe joining equipment hall be Proweld ocet fuion equipment a upplied by Aahi/America Inc, of Malden, MA. Quic Specification for Air-Pro Compreed Air Sytem Pipe and fitting are to be manufactured of the ame Solvay Eltex TUB 124 blue high denity polyethylene rein and ized according to an SDR preure rated ytem to 230 pi at 68 degree F. The ytem i to be joined via the ocet fuion method. All fitting through 4 are to be injected molded. 10 Web ite: aahi@aahi-america.com Air-Pro Piping Sytem 01-09

11 Dimenional Guideline Socet Fitting Air-Pro Pipe (old in 16.4 ft length) OD Size Size OD Weight (mm) (inch) (inch) (inch) (lb/ft) 20 1/ / / / Butt Fuion Only Air-Pro ytem ize mm are blue, SDR 7.4 and rated at 230pi. Air-Pro Sytem mm are blac tandard, SDR 11 and rated at 150pi. Blue available upon requet. Socet 90 Socet 45 z z Size Size z (mm) (inch) (inch) (inch) (inch) 20 1/ / / / Size Size z (mm) (inch) (inch) (inch) (inch) 20 1/ / / / Socet Tee Size Size (mm) (inch) (inch) (inch) (inch) (inch) 20 1/ / / / Web ite: aahi@aahi-america.com Air-Pro Piping Sytem Web ite: aahi@aahi-america.com Double Containment 07-05

12 Air-Pro TM Dimenional Guideline Socet Fitting Socet Reducing Tee 2 1 Size Size 1 2 (mm) (inch) (inch) (inch) (inch) (inch) (inch) 25/20 3/4x1/ /20 1x1/ /25 1x3/ /20 1-1/4x1/ /25 1-1/4x3/ /32 1-1/4x /20 1-1/2x1/ /25 1-1/2x3/ /32 1-1/2x /40 1-1/2x1-1/ /25 2x3/ /32 2x /40 2x1-1/ /50 2x1-1/ Socet Coupling S ID OD Size Size OD ID (mm) (inch) (inch) (inch) (inch) (inch) 20 1/ / / / Socet Stub End OD Size Size OD (mm) (inch) (inch) (inch) (inch) (inch) 20 1/ / / / PPG Bacing Ring d6 D d2 b Size Size D d2 d6 b (mm) (inch) (inch) (inch) (inch) (inch) (inch) # ole 20 1/ / / / Web ite: aahi@aahi-america.com Air-Pro Piping Sytem Web ite: aahi@aahi-america.com Double Containment 07-05

13 Air-Pro TM Dimenional Guideline Spigot x Socet Reducing Buhing Socet Fitting Size Size (mm) (inch) (inch) (inch) (inch) 25/20 3/4x1/ /20 1x1/ /25 1x3/ /20 1-1/4x1/ /25 1-1/4x3/ /32 1-1/4x /20 1-1/2x1/ /25 1-1/2x3/ /32 1-1/2x /40 1-1/2x1-1/ /25 2x3/ /32 2x /40 2x1-1/ /50 2x1-1/ /63 3x /63 4x /90 4x Socet Cap OD Size Size OD (mm) (inch) (inch) (inch) (inch) 20 1/ / / / Socet MNPT Adapter t Size Size t (mm) (inch) (inch) (inch) (inch) (inch) 20 1/ / / / Nicle plated bra thread pi rated Socet FNPT Adapter t S Size Size t (mm) (inch) (inch) (inch) (inch) (inch) 20 1/ / / / Nicle plated bra thread pi rated Web ite: aahi@aahi-america.com Air-Pro Piping Sytem

14 Air-Pro TM Dimenional Guideline Socet Fitting Spigot Gooenec S t Size Size S t (mm) (inch) (inch) (inch) (inch) (inch) 20 1/ / Air-Pro Socet 90 x FNPT w/ MTG Bracet 1 z1 Size Size 1 2 z1 z2 (mm) (inch) (inch) (inch) (inch) (inch) (inch) 20 1/ z2 Socet Ball Valve b Size Size b (mm) (inch) (inch) (inch) (inch) (inch) 20 1/ / / / Air-Pro Ball Valve ize 20-63mm are rated 230pi. Air-Pro Ball Valve ize 90mm are rated 150pi. 14 Web ite: aahi@aahi-america.com Air-Pro Piping Sytem 01-09

15 Air-Pro TM Dimenional Guideline Air-Pro Pipe (old in 16.4 ft length) Butt & Electrofuion Fitting Size Size OD Weight (mm) (inch) (inch) (inch) (lb/ft) Air-Pro Sytem mm are blac tandard, SDR 11 and rated at 150pi. Blue available upon requet. OD Electrofuion Coupling 1 Elongated 90 Size Size 1 (mm) (inch) (inch) (inch) (inch) 20 1/ / / / Size Size z r l3 (mm) (inch) (inch) (inch) (inch) l3 r z Elongated 45 z Size Size z (mm) (inch) (inch) (inch) Web ite: aahi@aahi-america.com Air-Pro Piping Sytem

16 Air-Pro TM Dimenional Guideline Butt & Electrofuion Fitting Elongated Tee Size Size l3 (mm) (inch) (inch) (inch) (inch) Elongated Reducing Tee l2 l1 Size Size l1 l2 (mm) (inch) (inch) (inch) (inch) (inch) 160/110 6x /110 8x /160 8x /110 12x /200 12x /250 12x Elongated Conc. Reducer l2 Size Size 1 2 (mm) (inch) (inch) (inch) (inch) 160/110 6x /160 8x /160 10x /200 10x /200 12x /250 12x l1 Elongated Cap Size Size (mm) (inch) (inch) Web ite: aahi@aahi-america.com Air-Pro Piping Sytem 01-09

17 Air-Pro TM Dimenional Guideline Elongated Stub End OD l2 Butt & Electrofuion Fitting Size Size OD l1 l2 (mm) (inch) (inch) (inch) (inch) (inch) l1 Ductile Iron Bacing Ring d6 D d2 b Size Size D d2 d6 b (mm) (inch) (inch) (inch) (inch) (inch) (inch) # ole Reducing Electrofuion Tapping Saddle 1 Reducing Electrofuion Tapping Saddle w/ Valve Size Size 1 (mm) (inch) (inch) (inch) 63/32 2x /32 3x /50 3x1-1/ /63 3x /32 4x /50 4x1-1/ /63 4x /25 6x3/ /32 6x /50 6x1-1/ /63 6x Air-Pro Pipe Electrofuion Saddle are rated at 150pi. Size Size 1 (mm) (inch) (inch) (inch) (inch) 63/32 2x /32 3x /63 4x /63 6x /63 8x Air-Pro Pipe Electrofuion Saddle are rated at 150pi. 1 Web ite: aahi@aahi-america.com Air-Pro Piping Sytem

18 Nomogram for calculating the pipe outide diameter ength of the pipe (l) in m Outide pipe diameter (od) in mm volumetric flow rate (V) in l/ Preure decreae in the pipe ( p) in bar Woring preure (P) in bar 18 Web ite: aahi@aahi-america.com Air-Pro Piping Sytem 01-09

19 Warranty Warranty; imitation on iability. Aahi/America, Inc., ( Seller ) warrant, to the original Buyer only, that all product delivered hereunder hall be free from defect in deign and manufacture for a period of one year from the date of delivery, provided that uch product are intalled, ued, operated, adjuted and erviced only in a proper and appropriate manner and in trict accordance with any intruction relating thereto furnihed to Buyer by Seller. In no event hall the foregoing warranty extend to any product in any way caued or allowed to be, or intalled, operated or ued in uch a manner a to be, ubject or expoed to condition of miue, abue or accident. TE FOREGOING WARRANTY IS EXCUSIVE AND IN IEU OF ANY AND A OTER WARRANTIES, EXPRESS OR IMPIED. NO WARRANTY OF MERCANTABIITY, NO IMPIED WARRANTY OF FITNESS FOR ANY PARTICUAR PURPOSE, AND NO IMPIED WARRANTY ARISING BY USAGE OF TRADE, COURSE OF DEAING OR COURSE OF PERFORMANCE IS GIVEN BY SEER OR SA ARISE BY OR IN CONNECTION WIT TIS SAE AND/OR TE SEER S AND/OR BUYER S CONDUCT IN REATION TERETO OR TO EAC OTER, AND IN NO EVENT SA SEER BE IABE ON ANY SUC WARRANTY WIT RESPECT TO ANY PRODUCT. iability of the Seller under or in connection with thi ale and/or the foregoing warranty hall be limited, at the ole option of the Seller, to one repair of, replacement of, or a refund of the purchae price of any product or part thereof (a), with repect to which Seller receive, promptly after Buyer dicovery of any alleged defect and prior to the expiration of the one-year warranty period a provided above, notice from Buyer or Buyer claim defect and (b) which hall be returned to Seller by Buyer, a provided herein, promptly after Buyer dicovery of uch alleged defect and which hall be determined by the Seller to have proven defective within the one-year warranty period provided above; failure by Buyer to notify Seller and return uch product to Seller after Buyer dicovery of uch alleged defect hall contitute a waiver by Buyer of any and all claim of any ind with repect thereto. Any product returned by Buyer to Seller under the foregoing term hall be returned to Seller place of buine freight prepaid, accompanied or preceded by Buyer particularized tatement of the claimed defect. The ri of lo and freight charge to and from Seller in connection with any returned product hall be borne by Buyer; but Seller hall bear uch additional freight charge ariing in connection with any uch returned product ultimately determined by Seller to be defective under the term of the foregoing warranty, the cot of repair or replacement (if any) of uch product, and the ri of lo or damage which uch product are in Seller poeion at it place of buine. The foregoing remedy hall contitute the ole and excluive remedy of the Buyer under or in connection with thi ale and/or warranty of the Seller. Except a pecifically provided herein, Seller hall not be reponible or liable for any cot, expene or damage of Buyer in connection with any removal, repair or replacement (including any attempt or action relating thereto) of any allegedly defective product, and no charge of etoff of any ind of Buyer relating thereto hall be made againt the Seller without prior and pecific written approval of Seller. IN NO EVENT SA SEER BE RESPONSIBE OR IABE FOR ANY SPECIA, INDIRECT, INCIDENTA OR CONSEQUENTIA DAMAGES ARISING IN ANY WAY IN CONNECTION WIT ANY PRODUCTS OR TIS SAE. The agreement of Seller to ell it product i exprely conditioned upon the Buyer aent to, and Seller agree to ell it product only upon, all term and condition et forth above and on the face hereof. Buyer acceptance of any product provided under thi ale hall contitute uch aent. Web ite: aahi@aahi-america.com Air-Pro Piping Sytem

20 35 Green St., Malden, MA Tel: ; Fax: