A494 CW12MW Ball Valve

  NSV Hastelloy C276(A494 CW12MW) Floating Ball Valves are widely used for processes handling oxidizing acid,formic acid,acetic anhydricde and seawater,also for chemical processes handling fluoride,that’s with superior resistance under oxidizing environment,such as wet chlorine gas and chlorine dioxide; also resistance to organic and chloride such as acetic acid and seawater.

• Applicable Standards:

  Ball  Valve design according to API6D,BS5351,ASME B16.34

  Face to face ASME B16.10,AP6D
  End Flanges ASME B16.5/ASME B16.47
  Fire Safety API607,API6A
  Inspection and test API 598,API6D

Body: Hastelloy C276(A494 CW12MW)
Ball:  Hastelloy C276(A494 CW12MW)
Seat:PTFE,RPTFE
Size Range: 1/2"~8"
Pressure Rating: ASME CL, 150, 300, 600

• Design Description:
  - Two Pieces or Three Pieces Body
  - Soft Seated
  - Full or Reduced Bore
  - Flanged Ends
  - Anti Blow Out Stem
  - Anti Static Device
  - Fire Safe Design
  - Locking device
  - ISO Mounting Pads (Optional)

STRUCTURAL FEATURES

1. Fireproof Structure Design
With the valve heated in a fire application, the non-metal material parts such as seat sealing ring of PTFE, stem back seat gasket, gland packing, and the sealing gasket between body and bonnet might disintegrate or be damaged due to high temperature. Our company specially designed structure of auxiliary metal to metal seal is provided to effectively prevent both internal and external leakage of the valve. As required by custom ers, Our company floating ball valves with design can meet the requirement of API 607, API 6FA,BS 6755.

2. Reliable Sealing Of Valve Stem
The stem is provided with the shoulder at its bottom so that it will not be blown out by the medium even under the extreme conditions such as abnormal pressure rise inside the valve cavity, failure of gland plate and etc. In addition, to avoid leakage after the stem packing is burnt in case of fire, the thrust bearing is set at the place where the stem shoulder and body contact to form a reverse sealing seat. The sealing force of the reverse seal will increase according to the increase of medium pressure, so as to ensure reliable stem sealing under various pressure, prevent leakage and avoid accident spreading.

The stem adopts V type packing sealing structure. The V type packing can effectively change the pressing force and medium force of the gland into the sealing force of the stem.
According to user requirements, the disc spring loaded packing pressing mechanism can be adopted to make the sealing of stem packing more reliable.

FAQ

1. Q: What kinds of valves do you manufacture?

A: We usually manufacture valves made of various materials such as cast Iron/ carbon steel,stainless steel,Alloy steel and industrial valves such as ball, gate, globe, check, bellows seal and ETC. For detail information, please refer to " Download>E-Catalog” of homepage.

2.Q: How about delivery schedule?

A: Delivery schedule depends on product type. Therefore, please consult with sales team for specific delivery schedule when you inquire quote. The company is making an effort to keep the delivery schedule, which is the promise with customer. The company will improve your satisfaction degree by delivering the necessary product as soon as possible.

3.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.

4.Q:How can I visit your company?

A: We always welcome you to factory. However, your visit intention shall be pure. You can visit factory conveniently by noticing your visit to the department in charge depending on your visit purpose in advance. For the way to factory, please refer to map“About Us” of homepage.

5.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.

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