Ductile Cast Iron Di Ci Stainless Steel Barss EPDM Seat Water Resilient Wafer Lug Lugged Type Double Flange Industrial Butterfly Valve Gate Swing Check Valves

Good quality comes 1st; assistance is foremost; business enterprise is cooperation' is our business enterprise philosophy which is regularly observed and pursued by our company for SS904L Butterfly Valve, Bolted Bonnet Forged Gate Valve, Hastelloy C22 Butterfly Valve. Our long-term accumulated production debugging experience, the grasp of the latest extrusion technology and the full implementation of quality management system in every link of production management make us a reliable partner for you. We will continue to expand our production and sales scale by becoming stronger and bigger. Striving hard to attain continual success based on quality, reliability, integrity, and complete understanding of market dynamics.

Product Details

NSV Cast Steel Swing check valves, like all check valves, are used to prevent back flow in the line. The pressure of the fluid passing through a system opens the valve, while any reversal of flow will close the valve. The swing check valve functions by allowing flow forces to move the closure element, it is a hinged clapper which swings or rotates around a supporting shaft.

Applicable Standard
Design Standard: BS 1868, ASME B16.34, API 6D, DIN2533
Face to Face: ASME B16.10, API 6D, EN 558, DIN 3202
End Flange: ASME B16.5, ASME B16.47, DIN2501, DIN2533
Butt welding Ends: ASME B16.25, DIN3239
Inspection and Test: API 598, DIN3230

Products Range
Size: 2" ~ 24" (DN50 ~ DN600)
Rating: ANSI 150lb-1500lb
Body Materials: Carbon Steel, Stainless Steel, Alloy Steel, Duplex Steel
Trim: Per API 600

Design Features
Full open design
Bolted cover
Swing type disc design
Renewable or and welded seat
Flanged or butt welding ends

STRUCTURAL FEATURES

◎ Body--Cover

Precision machined castings.
Exclusive: Disc shaft does not penetrate body.

◎ Body and Cover

Body and cover joint: Accurately machined,
fully-enclosed gasket.

◎Disc

Robust one-piece construction to withstand the severe shock of check valve service. Hardfaced with 13Cr, CoCr alloy, SS 316, or Monel, ground and lapped to a mirror finish. Sizes NPS 2–6 (DN 50–150) may have solid CA 15 (13Cr) disc. SS 316 disc with CoCr alloy facing also available.

FAQ

1.Q: What’s the brand of your company can supply ?

A:NSV or OEM service

2.Q: Do u provide sample,is it free or extra ?

A: Yes, we could offer the sample, due to its value,we can supply free sample that small value and you afford the freight,but also welcome visit our factory to inspect quality.

3.Q: What’s your payment terms?

A: As our company’s policy, we normally have bellow 3 payment terms,it also can negotiation both parties before confirm order.
1) 100% T/T or West Union in advance that order value within $2,000.00USD.

2)30% T/T advance+70% balance after the shipment for the order value above $2,000.00USD.

3)L/C at sight for the order value above $50,000.00USD.

We always adhere to the principle of market-oriented, technological innovation as the driving force, and customer service as the purpose. We combine product technology with production management to provide customers with Ductile Cast Iron Di Ci Stainless Steel Barss EPDM Seat Water Resilient Wafer Lug Lugged Type Double Flange Industrial Butterfly Valve Gate Swing Check Valves solutions. Our forward-looking strategic thinking and cutting-edge perspective have created a new business philosophy that is borderless and frameless for the enterprise. Our professional and elite team is only to make products and services better and obtain the highest customer satisfaction.