
Super Stainless Steel A182 F51 4A Disc API 594 Dual Plate Wafer Lug Check Valve
We adhere to everything from the needs of users, we develop and produce the ideal products suitable for you according to the requirements of you, so that your Wafer Concentric Butterfly Valve, V-Port Ball Valve, Tilting Disc Wafer Check Valve have vitality and competitiveness. Our company try our best to provide better service for customers with perfect after-sales service system, and sincerely establishes friendly business alliance for domestic and foreign customers. With the rigorous manufacturing process, advanced management concept, professional production team and the spirit of continuous development and innovation, our products are of high quality and low price, highly competitive in the market, and our products are widely spread in every corner of the world. Our companny adheres to the business philosophy of 'quality to create brand, with services to win market' making the greatest efforts for customer service.
NSV F55 Forged Swing Check valves,its produced one piece that’s stronger than an equivalent casted parts.like all check valves, are used to prevent back flow in the line. it is high cracking corrosion resistance to chloride environment,high corrosion resistance to dilute sulphuric acid and phosphoric acid,that suitable for Pulp and paper mills,chemical processes,and seawater service.
Applicable Standard
Design Standard: API 602, ASME B16.34, BS 5352, DIN3352
Face to Face: ASME B16.10, EN 558, DIN3202
End Flange: ASME B16.5, DIN2533
Butt welding Ends: ASME B16.25, DIN3239
Socket Welded Ends: ASME B16.11
Threaded Ends: ASME B1.20.1
Inspection and Test: API 598, DIN3230
Products Range
Size: 1/2" ~ 2"(DN15 ~ DN50)
Rating: ANSI 150lb ~2500lb
Body Materials: Duplex Stainless steel(A182 F51,F53,F55).
Trim: Duplex Stainless steel(A182 F51,F53,F55)
Design Features
Full port or reduced port design
Swing disc
Bolted bonnet(B.B),Welded bonnet(W.B),Pressure Seal Bonnet(P.S.B) also available.
Flanged, butt-welded, socket- welded, or threaded ends


BODY-BONNET CONNECTION:BOLTED-BONNET 
NSV Standard construction of boy-bonnet connection is bolted,with s apiral wound gasket to seal the connection.
On request we offer as well Ring Joint connection,Ring Joint that’s for high pressure on class 2500lb bolted bonnet,als on request on other pressure class.
FAQ
1.Q: What’s the brand of your company can supply ?
A:NSV or OEM service
2.Q:I want to know how to contact the person in charge.
A: When you call representative call number of company(86-577-67378616), sales team will receive your call if there is no special situation. If you let us know your inquiry, we will put you through to the person in charge. If you need a personal phone number, you have to receive it from the person in charge directly after phone call.
3. Q: What's the valves warranty?
A: Our valves warranty period should be 18 months from the date of shipment or 12 months after installation, whichever occurs first.
4. Q:How can I get a quote?
A: If you request quote by preparing the product spec you want to request specifically through “Contact us or Feedback” of homepage, we will send reply to you ASAP. If the contents of homepage are not available, you can inquire to us via phone(86-577-67378616) or fax(86-577-67372367).
5.Q:Is there have MOQ?
A:No.we can accept 1set,but there have additional cost $150.00(process of export) if the order value within $2000.00.
We uphold a consistent level of professionalism, top quality, credibility and service for Super Stainless Steel A182 F51 4A Disc API 594 Dual Plate Wafer Lug Check Valve. We hope to provide our customers with excellent and lasting services with high-quality products and a pragmatic attitude! Our company promotes our own technology to the field of product manufacturing and hopes to become a company that can continue to contribute to the world.
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