API594 Standard Bw Ends Dual Disc Check Valve

• Customization: Available
• Media: Fresh Water, Sewage, Sea Water, Air, Vapor, Food,
• Temperature: High Temperature
• Model NO.: H76H
• Material: Wcb,Wc6,CF8,CF8m,CF3,CF3m,4A,5A
• Connection Form: Wafer Type Bw Ends
• Structure: Dual Plate Swing Check Valve
• Pressure: Class 150lb-2500lb;Pn10-Pn420
• Function: Ddcv Double Lobe, Nrvg Silence, Prevent Medium Backflow
• Sealing Form: Metal Hard Seal
• Flow Direction: Reversing
• Standard: API594,API 6D,ASME B16.34,GB/T8937
• Application: Industrial Usage, Water Industrial Usage, Household Usage
• Size: 2"~60"; DN50~DN1500
• Pre-Temp. Rating: ASME B16.34
• Test & Inspection: API598,API 6D; DIN3230, En12266,ISO 5208
• Valve Test: 100% Quantity Tested Before Delivery
• Test Certificate: En1024 3.1 Certificate, Provide Rt,Mt,PT,Ut
• Company Certificate: API6d,CE,ISO9001,ISO14001,API 607
• Brand Name: Shf & OEM
• Special: Nace Mr-0175
• Supplier: Factory Direct
• Valve Guarantee: 18 Months
• Transport Package: Plywood Wooden Case
• Specification: 120x120x100cm
• Trademark: SHF
• Origin: Jiangshu, China
• HS Code: 8481300000
• Production Capacity: 200000
• Package Size: 90.00cm * 80.00cm * 75.00cm
• Package Gross Weight: 50.000kg

Product Description

Construction is as follows 

Name	Wafer Check Valve
Structure	External double-disc swing check valve
Size	1/2"~88"; DN15~DN2200
Normal pressure	Class 150~2500; PN10~PN420
Design standard	API594,API 6D,ASME B16.34,GB/T8937
Marked	MSS SP-25
End flange	ANSI B 16.5,ASME B16.47; EN1092,DIN2543~DIN2547
Face to Face	API594,DIN3202,GB/T8937
Test standard	API598,API 6D; DIN3230, EN12266,ISO 5208
Suitable temperature	-29~425°C
Medium	Fresh water, sewage, sea water, air, vapor, food, medicine, oils, alkalis, salt etc.
Acidic environment	NACE MR0175

Structure

- Dual Plate

 -With Spring

- Round, Full Lug or Double Flange

 -Pressure-temperaure Ratings: ASME B16.34;DIN2401

- Soft or Metal Seated

- Retainer or Retainer Less Design

- Wafer Ends to Suit for Flanged Ends(ASME B16.5 and B16.47 A/B)

- Design:API594,API 6D,ASME B16.34,GB/T8937

- Flanged Ends to ASME B16.5;DIN2543~DIN2547;EN1092

- Cast or Forged Carbon Steel, Stainless Steel, Duplex Steel

Main Part & Materials

Part Names	Part Materials
Body	WCB/A105	LCB/LF2	WC6/F11	CF8/F304	CF8M/F316L		CF3/F304L		CF3M/F316L		CE8MN/CD4McN
Disc	WCB/A105	LCB/LF2	WC6/F11	CF8/F304	CF8M/F316L		CF3/F304L		CF3M/F316L		CE8MN/CD4McN
Arm	WCB/A105	LCB/LF2	WC6/F11	CF8/F304	CF8M/F316L		CF3/F304L		CF3M/F316L		CE8MN/CD4McN
Arm Pin	A182 6a	A182 304	A182 304	A182 304	A182 316		A182 304L		A182 316L		A182 F53/F51
Seat/Seat Ring	STL	SS304	13%Cr	SS304	SS316		SS304L		SS316L		A182 F53/F51
	Or NBR,EPDM,PTFE
Suitable Medium	W.O.G etc.			HNO3, CH3OOH etc.						Urea etc.
Suitable Temperature	-29~425 °C	-46~340 °C	-29~538 °C	-196~427 °C	-196~427 °C	-196~427 °C		-196~427 °C		-29~315 °C

Product Size

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