12-Inch Double Disc Wafer Dual Palte Check Valve Air Check Valve

• Customization: Available
• Material: Stainless Steel
• Connection Form: Wafer
• Model NO.: H76H
• Structure: Dual Palte
• Pressure: High Pressure
• Function: Ddcv Double Lobe
• Sealing Form: Bellows Globe Valve
• Flow Direction: Unidirection
• Standard: ANSI
• Application: Industrial Usage, Water Industrial Usage, Household Usage
• Size: 2′′-56′′
• Transport Package: Wooden Box
• Specification: 100x100x100
• Trademark: yuefeng
• Origin: China
• HS Code: 8481804090
• Production Capacity: 10000ton

Product Description

Single-Disc Swing Wafer Check Valve

Metal seal or rubber seal.
DN50-DN1500, class150-2500

Product features
To API594
Face to face per ANSI B 16.10
Flange ends dimension ANSI B 16.5/ANSI B 16.47
Final inspection tests to API598.

Materials
WCB CF8 CF3 GR4A Hastelloy C etc.

Corrosion protection
Inside and outside epoxy coating
Applicable temperature: -196-540 different raw material for different work temperature
Applicable medium: Water, oil, gas and other causticity medium (different raw material for different medium)

About this product
H74H/H74W/H74X-10-40C/P/R

Structural formation	Dual-disc swing type check valve
Design standard	GB/T12224	API 594
Face to face	GB/T 15188.2	ASME B16.0
Flanged ends	JB/T 79\GB/T9113\HG20592	ASME B16.5
Test &inspection	JB/T 9092	API 598

 
Note:The sizes of valve connecting and butt-welding terminas can be designed according to customers' request.
Major parts material fom

No.	Part name	Material
1	Body	WCB\CF8\CF8C\CF8M\CF3\CF3M	ASTM A216 WCB\ASTM A351-CF8\CF8M\CF8C\CF3\CF3M
2	Disc	WCB\CF8\CF8C\CF8M\CF3\CF3M	ASTM A216 WCB\ASTM A351-CF8\CF8M\CF8C\CF3\CF3M
3	Pivot	1Cr13\2Cr13\1Cr18Ni9Ti\0Cr18Ni12Mo2Ti	ASTM A182GrF6a\ASTM A182 F22\ASTM A182-F304\F316\F321\F304L\F316L
4	Spring	4Cr13\60Si2Mn\1Cr18Ni9Ti\0Cr18Ni12Mo2Ti	AISI 9260\AISI 6150\ASTM A182-F304\F316\F321\F304L\F316L

Production process




Certificates & Test reports


Packing&Shipping

FAQ
Q:Are you a trading company or a manufacturer?
We are a manufacturer with a 13,000 square metre factory.

Q:Can you provide assembly drawings?
Yes, we will provide the relevant drawings as soon as possible if you need them.

Q:How do you guarantee the quality of your products?
A: Before the products leave the factory, our quality inspectors will inspect each product before shipment to ensure the pass rate.

Q: Can you produce different standard valves according to customers' requirements?
A: Yes, please provide specific details, such as model, size, pressure, material and so on.

Q:How long is your delivery time?
A: Usually 15-30 days, it depends on the order quantity and our storage.