Fange End 4in PTFE Sleeve Plug Valve

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Product details

NSV Full Bore Plug valves is no diminished flow with the full bore port, and also easy to pigging. For application such as high viscosity condensable media, high efficiency is demonstrated with full bore port.

Applicable Standard
Design Standard: API 599,6D, ASME B16.34
Face to Face: ASME B16.10
End Flange: ASME B16.5
Butt welding Ends: ASME B16.25
Inspection and Test: API 598, API 6D

Products Range
Size: 1/2" ~14" (DN15 ~ DN350)
Rating: 150lb ~ 300LB

Body Material: Carbon Steel, Stainless Steel, Alloy Steel, Duplex Stainless Steel
Plug Material: Carbon Steel, Stainless Steel, Alloy Steel, Duplex Stainless Steel
Sleeve(seat) Material: PTFE
Operation : Lever, Gear, Electric, Pneumatic, Hydraulic

Design Features
Full Bore
Rugged,Heavy-Duty Body
Large port opening

Non-Lubricated

STRUCTURAL FEATURES

1.Construction of Sleeved Plug Valves

Basic structure is plug, sleeve,body. Sleeve is inserted and encaged inside the body. Tapered plug is inserted onto the sleeve.The sleeve is acting as a soft seat.And completely surrounds plug creating areal sealing surfaces.Also not permitting any dead space in the flow path. Plug is rotating 90 degree. When it is aligned with the body port, flow is open. When the plug is rotated so that plug port is perpendicular to the body port the flow is blocked.The media kept in the plug while at closed position, will be contained in the plug port only,and when the valve is open again,the flow will flush the out. And no remains.

Plug is tapered. Monolithic design.Wedge action. Lowering 1 mm will result in side pressure vectors.Adjustable. Solid not unstable as pressure dependent.Materials can be upgraded for the plug alone to be better resistive than the body corrosion rate.

Sleeve is also tapered to accepted the configure of plug. They are snuggly fit into the void space created by upper, lower and metal port lips.The PTFE materials are rigid enough, resilient enough, elastic enough. Corrosion resistant.Temperature, pressure.For highly radioactive environment, higher temperatures,several different materials are used.

2.Zero Leakage

The zero leakage stem sealing is achieved by the Threefold Stem Sealing System.
The primary seal is provided by the sleeve. The sealing is so tight that no leakage can be observed even without a valve cover. The secondary and the tertiary seal (top seal package) are provided by a delta ring and a diaphragm made of RTFE ( Rein forced Teflon). The sealing is also so tight that no leakage can be observed even with out a sleeve.

FAQ

1. Q:What’s the packing for shipping?

A:Its carton for small valves(sample) and plywood case(don’t to fumigate).

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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