Lubricated Stainless Steel Plug Valve

NSV Lubricated Stainless Steel Plug Valve

The NSV lubricated stainless steel plug valve is manufactured from stainless steel castings, featuring a compact body design suitable for high-temperature and high-pressure services.

A specialized sealing lubricant is injected between the plug and body to form a dynamic oil film that prevents leakage, significantly reduces operating torque, and extends service life.

Available with manual, electric, or pneumatic actuation, it offers quick and smooth operation. Widely used in petrochemical, power, metallurgy, LNG, and other industrial applications to ensure safe and reliable operation of critical piping systems.

Key Features

Valve type: Plug valve
Body material: Castings — CF8 (304) / CF8M (316) or other stainless steel grades

Sealing: Lubricated
End connection: Flanged (RF/FF)
Actuation: Manual / Electric / Pneumatic
Operating temperature: -20°C to 450°C
Pressure rating: Class 150–900 (PN16–PN150)
Size range: 1/2"–24" (DN15–DN600)

Performance Advantages

Lubricated design greatly reduces operating torque—ideal for large sizes or frequent cycling;Sealing grease fills micro-gaps to achieve zero leakage under pressure

All-stainless construction resists corrosion and contamination

T-port configuration enables flow direction switching

Electric actuators support remote control and automation

Easy maintenance with periodic grease replenishment to restore sealing performance

Typical Applications
Isolation valves in petrochemical plants, boiler feedwater regulation, LNG liquefaction processes, CHP systems, inlet/outlet control of chemical reactors, large-scale storage and transfer pipelines.

Quality Assurance
Shell and seat tested per API 598 / ISO 5208. EN 10204 3.1 Material Test Certificate provided. Cast bodies comply with ASTM A351 standard.

FAQ

1. 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.
2. Q:How can I get your company catalog?

A: For your reference, basic catalogue is same as "Download>E-Catalog” of homepage. If you need printed material or request more specific data like PQ material, please contact sales team.

3. 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.

4. Q:Do you have customized valve?

A:Yes,we can supply customized valves.