Pressure Seal Gate Valve

NSV Pressure Seal Gate Valve

The NSV pressure seal gate valve features a self-energizing seal that tightens automatically with increasing system pressure, ensuring bidirectional zero leakage. Cast in carbon steel (WCB/LCC) and compliant with API 600, it is rated for Class 600–2500 (PN100–PN420), up to 540°C, with end connections available in flanged (RF/RTJ) or butt-weld (BW). Ideal for critical isolation in refineries, chemical plants, power stations, and pipeline systems.

Key Features

Valve Type: Pressure Seal Wedge Gate Valve

Body Material: WCB / LCC (Carbon Steel)

Sealing Type: Pressure Seal (self-energizing)

Actuation: Handwheel (electric/pneumatic optional)

End Connection: Flanged (RF / RTJ) or Butt-Weld (BW)

Size Range: 2"–48" (DN50–DN1200)

Pressure Rating: Class 600–2500 (PN100–PN420)

Operating Temperature: –29°C to 540°C

Standards: API 600, ASME B16.34, ISO 5208

Typical Applications

High-pressure steam lines, boiler feedwater mains, hydrotreater feed lines, LNG high-pressure vapor service, oil & gas trunklines, and supercritical power plant systems.

FAQ

1. Q:Are you manufacturer or trading company?

A: We’re manufacturer,but our factory name is not named NSV due to we’re professional in promotion NSV brand with best service,and also have sold to many end user success.

2. 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.
3. Q:What’s the packing for shipping?

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

4.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.