API6D Dual plate check valve WAFER TYPE LUG TYPE FLANGED TYPE.

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API6D Dual plate check valve WAFER TYPE LUG TYPE FLANGED TYPE

PRODUCTS CONTENTS JSC Union is committed to enhancing our customers working site safety, system stability, and convenient operations through our valve product offerings. Our diverse and innovative valves will have more safety design, longer working life and more reliable operation. Located in the city with a more than forty years history to make industrial valve, RUV has carried on the mature valve manufacturing tradition of Zigong city. y our advanced seat design and special workmanship, we are making high quality ball valve, through conduit gate valve and dual plate check valve, range from complete size and pressure for petroleum, chemical, and energy industrial use. To be a professional API6D valve company, we are making for reliability. Dual Plate Check Valve Applications page Feature page Advantages page 4 Models page Materials page 6 Dimensions page Flange type design page 0 Lug type design page Stud selection page Flow rate ranges page 4 Fig.NO page 6

APPLICATIONS A wide variety of body designs,materials, and trim make RUV Dual Plate Check Valves exceptionally versatile and suitable for a multitude of liquid and gas fluid applications. Petroleum Refining Hydrogen Cracking Steam Crude Oil Gasoline Visbreakers Naptha Sulfur Oil and Gas Production Centrifugal Compressor Discharge Fire Water Lines Oil/Steam Separation Steam and Co Injection Gas/Oil Gathering Systems Flowlines Wellheads Power Generation Steam Condensate oiler Feed Pumps Cooling Towers Service Water Recirculators River Water Recirculators River Water Intake Steel/Primary Metals Quench Lines De-Scaling Continuous Casters Steam Condensate Strippers Electro-Galvanizing Petrochemicals Ethylene Propylene Steam Reboilers Gases Chemicals Chlorine Phosgene Aromatics Polymers Acids Air Separation Cauctics Pulp and Paper leaching Lines lack Liquor Green Liquor White Water Steam Chemical Recovery Marine Oil Tankers Tanker Loading Terminals Offshore Platforms Sub-Sea Manifolds Terminal Transfer Lines arge Unloading Lines Sipboard Services Water and Wastewater Distribution Lines Pumping Stations Sewage Plant lower Discharge Chemical Treatment Fire Protection Systems HVAC Systems 0

DUAL PLATE CHECK VALVE FEATURES The JSCy Union dual plate check valve design Conforms to API94 and API6D. And it is generally stronger, lighter, smaller, more efficient and less expensive than conventional swing check valves. It has about % the face to face dimension and % to % the weight of a swing check valve and making them less expensive than a swing check valve. Ir is much easier to install between standard gaskets and line flanges. DESIGN FEATURES Easy to install and maintain Manufactured to API94 and tested to API9 Smooth, spring-assisted closing reduces water hammer All WC and 6 SS valves conform to NACE MR-0- Rugged Inconel X-0 spring is standard in all steel and stainless steel valves Innovative 6 SS seat, standard in all WC metal-seated valves, combined with standard 6 SS plates provides a true all stainless steel seating area Long-legged springs allow plates to open and close without seat scrubbing Economical, lightweight, compact design-significantly lighter and less expensive the comparable swing check valves Light weight, versatile design, 0 to 90% lighter than conventional full-body check valves. Reduces pipe supports, simplifies piping, easier, less costly installation. - Reduced thermal and seismic considerations - No need for additional expensive support - Optimum space utilization, simplified piping Discs open 0 to ensure positive closing. Materials and trims available for all services within temperature range. Extended leg springs prevent seat wear caused by scrubbing. Springs are calculated to increase the responsiveness of the disc, thus reducing damaging effects of water hammer. Resilient or metal-to-metal seat available. 0

ADVANTAGES The RUV dual plate check valve design is generally stronger, lighter, smaller, more efficient and less expensive than conventional swing check valves. The design meets API 94 whch is approximately % the face to face dimension and % to % the weight, on most popular sizes, making them less expensive than a swing check valve. It is much easier to install between standard gaskets and line flanges. The savings compound during installation due to ease of handling and only one set of flange studs is required. Therefore, it is more cost effective to install, and also to maintain. The RUV also offers special design features which make it a high performance non-slam check valve. These include a scrub-free opening, and in most sizes a unique independent spring design as well as an independent plate stop hinge pin. Other configurations include lug type and double flange type. P P S P P S Heel opens first as flow begins Plates fully opened Plates fully seated for bubble-tight shutoff The innovative dual-plate design of the RUV check valve employs one or two spring-loaded plates (disc halves) suspended on a central vertical hinge pin. As flow begins, the plates open in response to a resultant force (P) which acts as the center of the sealed surface area. The contact point of the reacting spring leg s force (Ps) acts beyond the center of the plate area, causing the heel to open first. This prevents rubbing of the esal surface prior to normal plate opening, eliminating wear. As the velocity of flow decreases, torsion spring action reacts automatically. This moves the plates closer to the body seats, reducing the distance and time of travel for closure. y having the plates closer to the body seats at the time of flow reversal, the valve dynamic response is greatly accelerated. This dramatically reduces the water hammer effect for non-slam performance. At closing, the point of spring force causes the toe of the plates to close firstly. This prevents dragging of the heels of the plates and maintains seal integrity for much longer periods. A spring design of RUV dual plate check valve (sizes and larger) allows higher torque to be exerted against each plate with independent closing in response to the process stream. Testing has proved this action provides up to % improvement in valve life and 0% reduction in water hammer. Each of the dual plates has its own spring or springs, which provide independent closing action. These in-dependent springs undergo less angular deflection, only 40 as compared to 0 forconventional springs with two legs. Independent Plate Suspension Design Independent Spring Design The RUV dual plate check valve unique hinge design reduces friction forces by 66%, which improves valve response significantly. Support sleeves are inserted through the outboard hinges so that the upper hinge is independently supported by the lower sleeve during valve operation. This allows both plates to close at the same time for quick response, and excellent dynamic performance. Plate in ipen position Spring with valve closed Plate in closed position Spring with valve wide open 40 Unstressed spring 0

DUAL PLATE CHECK VALVE MODELS WAFER TYPE ASME CLASS 0 00 00 0-0-mm - 0-mm -0" 0-0mm -" 0-mm -" 0-00mm -" 0-00mm LUG TYPE ASME CLASS 0 00 00 0-0-mm - 0-mm -0" 0-0mm -" 0-mm -" 0-00mm -" 0-00mm FLANGED TYPE ASME CLASS 0 00-0-mm - 0-mm -0" 0-0mm -" 0-mm 04

STANDARD CONSTRUCTION MATERIALS INDUSTRY STANDARDS ASME 6., 6., 6., 6.4, 6.4, and. API 94 AND 9 MSS-SP-, MSS-SP- API 6A and 6D (as applicable) MSS-SP-6 (standard for the resilient seatd, met seated when required) NACE MR-0- (Latest Edition, when required) SHOCK UMERS PLUG EYE OLT ADJUSTING RING STOP & HINGE PIN SPRING SPRING PLATE PLATE ODY PART NAME CAST IRON/RONZE ODY PLATE SPRING STOP PIN NPT-PLUG END EARING EARING WASHER SLEEVE SEAT A 6 CAST IRON ALUMINUM RONZE 6 6 6 6 6 6 UNA-N OR VITON A 6 CAST IRON A CFM 6 6 6 6 6 6 UNA-N OR VITON PART NAME WC/6SS 6SS/6SS CNM/CNM ODY A6-WC A-WC CNM PLATE A-CFM A-CFM CNM SPRING INCONEL X-0 INCONEL X-0 INCONEL X-0 STOP PIN 6 6 ALLOY NPT-PLUG 6 6 ALLOY END EARING 6 6 ALLOY EARING WASHER 6 6 ALLOY SLEEVE SEAT 6 6 OR VITON 6 6 OR VITON ALLOY A OR VITON 0

ANSI INSTALLATION DIMENSIONS SIZE CLASS A C Weight LC KGS " 0mm 0 00 00 0 0 00 00 0 0 00 00 0 0 00 00 0 0 00 -/" 6mm " 0mm 00mm " mm..................... 4. 4. 4. 4. 4. 4. 4...6.6.6.............. 4. 4. 4. 4. 4. 4. 4. 4 4. 4. 4. 4. 4. 4. 4..6.6. 4. 4... 6. 6. 6.6.... 6.6 6.. 6. 6...6.. 9.... 9. 0 0 4 4 46 0 0 6 6 6 49 49 6 4.6 9 94 6.4 9.4 9 9 6..6.6.6.6.6.6..64.64.64.....4.4.4...6..4.4. 4.0 4.0 4..6.. 4. 4 4 6 6 6 6 64 9 0 0 0 6 6 0 4 6 4 4 6 0 6 6 6 40 4 4 0.... 6.4 6.4 6.. 4... 0..9 6. 6. 0.9. 4..4.... 9.. 6...9. 06 C ΦA Installation Flow direction

SIZE CLASS A C Weight LC KGS 0mm " 0mm 0" mm " 00mm 0mm 0 00 00 0 0 00 00 0 0 00 00 0 0 00 00 0 0 00 00 6.6 6.6 6.6 6.6 6.6 6.6 6.6.6.6.6.6.6.6 0. 0. 0. 0. 0. 0. 0........ 4 4 4 4 4 4 6 6 6 6 6 6 6...............6.6.6.6.6.6.. 9. 0......64 4..... 4..... 6. 6. 6.6 9.6..6.. 9. 9... 6.6 0..4 40 40 6 4 4 46 40 40 4 4 49.. 49 4 4 46 49..9...94 6.6 6.6 6.6. 6..... 4... 9.4 9.6 9.4.6.. 9....4 0. 4 4 6 9 9 9 9 9 9 6 6 6 6 0 46 46 4 9 0 0 4 4 6 6 4 0 0 90 40 9 6 06 9 0 0 0 40 96 0 4 9 6 6 0 6 6 04 99 4 0 6 0 0 9 4 9 4 6 ANSI INSTALLATION DIMENSIONS 0 C ΦA Installation Flow direction

CLASS SIZE A C Weight LC KGS mm 0 00 00 0 00 00 0 00 0 00 0 00 0 " 40mm " 00mm " mm 0" 0mm mm 6 6 6 6 6 6 0 0 0 6 6 406 406 406 406 406 406 4 4 4 4 4 4 0 0 0 0 4 6 6 6 9 9.....6..6.6....... 6.... 0.. 4. 4.. 4. 4. 4 4 40 6 4. 64 49 49 9 6 6. 6 6 64 6 6. 9 9 04 04.. 9... 0.9 4...4..6. 4.......69 4.. 9 9 0 4 4 64 6 4 46 6 4 4 0 0 9 6 4 640 90-0 4 46 6 00 40 0 0 96 6 0 4 4 404 9 9 0 64 6 499 9 4 90 90 9 ANSI INSTALLATION DIMENSIONS Jsc 0 C ΦA Installation Flow direction

DOULE FLANGE RETAINERLESS VALVE DESIGN A C ASME Class 0 Size A " 0" " " " " 0" 4" " 6 " 0 00 0 40 00 0 00 0 0 00 00 -/ 6 9 -/ -/ -/4 46 9-/ 66-/4 0 6-/ 4 406 4 9 6 699 94 6 46 6 4 -/4 -/ -/4 -/ -/ -/4 -/4 -/ -/4 6 6 46 4 9 0 4 9 6 94 -/ 9-9/6 -/6 -/ 6-/ -/ -/ -/4 4 4 -/ 6 6-/ 6 94 4 40 4 9 04 94 0 4 9 9 4 409 46 0 4 6 99 9 6 4 66 ASME Class 00 Size A " 00 -/ -/ -/ 6 0 " 40 " 00 " 0" 0 4" 00 0 0 " 00 4 -/ 64 0-/ 6 94 4 09 0 0-/4 -/4 46 6-/4 6 4 -/4 9-/ 0-/ -/ -/ 4-/ 9 -/ -/4 -/4 -/ 64 6 4 6 6 69 6 -/ 4-/ 6-/ -/ -/ -/4 4 4 -/ 6 6 409 44 6 64 04 9 0 4 4 69 0 0 6 00 4 6 990 9 4 66 406 9 9 4 ASME Class Size A " " " " 0" 4" 00 0 40 00 0 00 0 -/4 -/4 44-/ -/4 -/4 6-/4 9 6 4 940 0 4 40 94 9 0 /4 4 /4 4 /4 ½ 9 / / 9 0 6 6 44 0 6 -/ -/ 4-/ 6-/ -9/6 -/4 -/4 9-/ 6 6 409 4 4 00 94 6 6 9 6 99 09 40 4 4 ASME Class Size A " " " " 0" 4" 00 0 40 00 0 00 -/4 -/4 -/4 4 4-/ -/ 6-/ 64 04 46 6 -/ 4 -/ -/4 -/4 9-/ -/ 6 4 4 4 49 6 00 0-/ -/ -/ 4-/ -/ 6 6 6 4 46 6 94 0 4 940 4 0 49 6 4 9 4 09

C A Jsc LUG RETAINERLESS VALVE DESIGN Lug Style valves cover the bolting the entire length of the body. They are furnished in scallop and full body designs. Scallop is furnished no matter when possible to keep weight to a minimum. These valves are standard retainerless design. Lug valves can be specified with threaded or thru-hole bolting. Thru hole Threaded Scallop Full ody Flow Direction ASME Class 0 Size A " /" " " 6 0 00 0 6-/ -/ -/4 9 0 6 9 9 4 -/ -/ -/ -/ -/ -/ 6 6 9 -//6 -/ -/ -/64 4-/6-49/64 49 4 9 46 6 4 6 ASME Class Size A " 0 6-/ 6 -/ -/ 49 /" 6 -/ 9 -/ 6 -/ 0 " 0 -/4 -/ -/ 4 0 4 00 0 -/ 9 -/64 9 0 4 6 -/ -49/64 46 9 " 0 6 49 6-/ 6 -/ 94 4 0" 0 -/ 9-9/6 40 ASME Class 00 Size A " " " 0" " " " " 0 00 0 0 00 0 40 00 -/ 0-/ -/4 -/ 9 6-/ -/ -/ 6 -/4 46 6 -/4 6 -/4 4 94 6-/4 4 -/ 4 9-/4 6 49 4 6 -/ 94 -/6 94 6 0 9 6 0 6 4 46 9 -/6 -/ -/6 -/6 6-/6 -/ 0-/ -/ -/6 -/4 4-/4 -/ 4 6 6 49 4 4 6 4 9 4 4 0 0 9 46 646 9 9 6 6 ASME Class 00 Size A " /" " " " 0" 0 6 0 00 0 0 6-/ -/ -/4 0 -/ -/ 6 9 4 44 -/ -/ -/ -/ -/ -/ -/4 6 6 9 46 -/6 -/ -/ -/64 4-/6-49/64 -/ 9-9/6 49 4 9 46 94 0 6 4 0 4 6 6 ASME Class Size A " " " 0" 0 0 00 0 0 -/ 9-/ -/ -/ -/ 6 4 46 -/4 -/4 4 6-/4 -/ 9-/ 0 9 6 -/6 -/ -/ -/6 6-/6 -/ 4 6 6 9 44 6 4 4 0 ASME Class 0 Size A " " " 0" " 0 0 00 0 0 00 9-/4 4 9 -/4 6-/ 0 0 6 4 6 6 -/4 -/ 4-/ 6-/4 -/ 0 6 0 9 6 4 0 -/ -/ -/6 -/6 6-/6 -/ 0-/ 4 6 6 4 9 6 6 4 69 09 9 0

STUD SELECTION C Min ASME Class Valve C Size No.of olt Diameter Flat Face in mm Studs in mm in mm " 0 4 / 6 / 4 /" 6 4 / 6 / 40 " 0 4 / 6 / 4 46 00 / 6 6 / 4 9 " /4 9 6 / 4 0 /4 9 D Min " 0" 0 /4 / 9 9 9 Ring Joint Flanges " 00 / 0 / 6 ASME Class 0 Valve C D Size No.of olt Diameter Raised Face Ring Joint in mm Studs in mm in mm in mm ASME Class 00 " 0 4 / 6 / Valve C D 4 46 6 / 4 9 Size No.of olt Diameter Raised Face Ring Joint /" 6 4 / 6 6 / 4 9 Studs in mm in mm in mm in mm " 0 4 / 6 6 / 4 / 4 4 00 / 6 " 0 / 6 6 6 / 4 6 / 4 / 4 4 " /4 9 /" 6 9 /4 9 6 / 4 / / 9 0 /4 9 / 6 " 0 /4 9 " 0 /4 9 9 / 0 4 00 /4 9 / 9 / 4 0" / 0 / 6 " /4 9 / 4 9 9 9 9 / 4 " 00 / 0 / 0 /4 9 9 " " " 0" 4" " 6 " 0 40 00 0 00 0 0 00 00 6 6 6 44 44 / / / 4 / 4 / 4 / / / / 4 / 4 / 4 / 44 44 44 / 4 / 4 4 / 4 / 4 / 4 / 4 6 / 4 / 6 40 66 9 / 4 / 4 4 / 4 / 6 / 4 / 4 / 4 9 49 94 4 9 69 " 0" " " " " 0" 4" 0 00 0 40 00 0 00 0 6 6 6 40 / / / 4 / 4 / 4 / / / 4 / 4 4 44 0 / / 4 4 6 / 9 / 4 / 4 4 / 4 / 4 / 4 6 / 40 6 6 406 4 4 0 66 69 9 9 06 / 4 4 / 4 6 / 4 / 4 9 / 4 / / 4 / 4 / / / 4 6 0 4 4 49 64 99

STUD SELECTION ASME Class Valve C D Size No.of olt Diameter Raised Face Ring Joint in mm Studs in mm in mm in mm " 0 / 6 6 / 4 /" " " " 0" " " " " 0" 4" 6 0 00 0 0 00 0 40 00 0 00 6 / 4 / 4 / / / 4 / 4 / / / / / / / / 4 C Min D Min Ring Joint Flanges 9 9 4 4 4 4 64 / 9 / 4 0 / 4 / 4 4 / 4 / 4 / 4 / 4 6 0 / 4 / 4 / 4 4 4 9 6 4 4 4 6 64 6 6 00 04 94 / 4 / 4 9 / 4 / 4 / / 4 / / / 6 / 4 0 / 4 4 / 4 / 4 / 9 6 4 4 64 66 0 ASME Class Valve C D Size No.of olt Diameter Raised Face Ring Joint in mm Studs in mm in mm in mm " /" " " 0" " " " " 0 6 0 00 0 0 00 0 40 00 ASME Class 00 ASME Class 0 6 Valve C D Size No.of olt Diameter Raised Face Ring Joint in mm Studs in mm in mm in mm " 0 / 4 / 4 /" " " 0" " " " " 6 0 00 0 0 00 0 40 00 6 6 6 6 6 6 Valve C D Size No.of olt Diameter Raised Face Ring Joint in mm Studs in mm in mm in mm " 0 0 0 4 0 4 /" " " 0" " 6 0 00 0 0 00 / / / / / / / / / / / / / / 4 / / / / 4 / / 4 / / / 4 / / / 4 4 4 64 4 4 64 6 9 64 / 4 9 / 4 9 / 4 4 9 / 4 6 / 4 0 / 4 / 6 / 4 9 / 4 0 / 6 / 4 9 / 4 / 4 0 / 4 / 4 4 / 4 4 / 4 / 4 / 4 / 4 / 4 / 4 / 4 6 4 4 6 69 00 9 6 0 4 0 9 66 9 96 6 6 0 4 4 / 4 9 / 4 9 / 4 4 9 / 4 / / / 4 6 / 4 9 / 4 0 / 6 / 4 / 4 / / 4 0 / 4 4 9 44 / 4 49 / 4 / 4 / 4 / 4 / 0 / 4 4 / 4 6 4 4 64 66 00 9 946 6 0 4 4 9 94 64 6 6

RECOENDED FLOW RATE RANGES RECOENDED FLOW RATE RANGES HORIZONTAL INSTALLATION ONLY This chart is based on flow of clean water at ambient temperature. Consult our engineering depqrtment for pressure drop information for steam, gases or viscous fluids. Piping practice recommends placement of check vlave a distance equal to pipe diameters from any turbulence producing device such as elbows, pumps, etc. Media Liquid Gas Flow Rate to feet/second 0.9 to. m/second to feet0second 6. to 6. m/second CV and Cracking Pressure Pressure Drop Chart Size "." Cv 4 Cracking Pressure(psi) 0. 0. U.S.G.P.M. " " " 0" " " " " 0" 40 0 000 0000 000 000 0. 0. 0.0 0.40 0.90 0.0 0. 0.0 0. 0.0 0.0 0.00 0.00 00,000,000 0,000 40,000 0,000,000 0,000,000,000 4,000,000,000,000 0 00 00 0 (mm) 4"(0mm) (mm) 0"(0mm) "(mm) "(00mm) "(40mm) (mm) (0mm) "(00mm) 0"(mm) "(0mm) (0mm) "(mm) (00mm) "(0mm) /"(6mm) "(0mm) 4" Cv value 00 0 000 0.00 0.00 0.0 00 0 40 0 0 ft/second optimum size range not recommended Cv indicates the gallons of water at temperature + F flowing through the valve bore in pressure differential 0. 0. 0. 0.4 0. 0..0.0.0 4.0.0.0 0.. 0. 40. 0.. 00. down Lbs/Inch (0.006694Mpa). Head Loss In Feet of Water

DUAL PLATE CHECK VALVES FIG NUMER SIZE TYPE PRESSURE RATING Suffix ASTM Grade ODY/DISC MATERIAL Category " Cl-Cast lron -# W-WC 0- Cast Steel /" CSR-Cast Steel, Rubber Seat -0# A-A6-0- Cast Irom " CSM-Cast Steel, Metal Seat 0-00# F-CFM 0-6 SSR-Stainless Steel, Rubber Seat -# CN-CNM 04- Alloy " SSM-Stainless Steel, Metal Seat 90-# C-CF 0-04 0-00# C-CF 06-04L " -0# CC-CF-C 0-4 0" CT-CF-T 0- " D-CD4MCu 09- Duplex-SS CM-CFM 0-6L G-CGM - " G-CGM - L " HM-NMV - Hastelloy " CW-CWMW 4- Hastelloy C 0" CY-CY40 - Inconel L-LCC 6- LCC M-M- - Monel M-M- - Monel M-M-H 9- Monel CZ-CZ00 - Nickel CK-CKM CuN - 4SMO 4 SSM W 0 M RTJ SEAT SPRING OPTIONS Examples: M-Metal -Inconel X-0 RTJ-End Connection To order a # RTJ SS metal-seated -una -6 LUG-Lugged ody Wafer Check valve with Inconel X-0 E-EPDM -Monel FE-Flanged ody spring and 04 SS disc, use FIG. Number V-Viton 4-Hastelloy C NACE-NACE 4SSMW0MRTJ T-Teflon -Alloy 4

API6D through conduit gate valve Add:Anfeng Industrial Zone, Oubei Town, Wenzhou, Zhejiang Province, China Tel:+6--699 Fax:+6--699 Email:sales@jscvalve.com