contact us



Address: NO.720, Suide Road, Jiading District,Shanghai, China.

Metal Seat Lubricated Plug Valve


  • Port size:1/2"~48" (DN15~DN1200)
  • Pressure:CL150-CL2500
  • Medium:Water,steam,oil,gas,etc.
  • Temperature :-40~450℃
  • Body material:WCB,CF8,CF8M,CF3,CF3M etc.
  • Connection:Flange,Thread,SW,BW is optional
  • Position type:
  • Characteristic:Pressure balanced lubricated structure
  • Voltage:
  • Other:Professional lubricated plug valve manufacturer
Metal seat lubricated plug valve manufacturer, China lubricated plug valve factory and supplier. Metal seat lubricated plug valve is critical components of a pipe system that transfers liquids, gases, vapors, slurries, and other substances from one location to another. When the media to be transferred contains slightly abrasive particles, mostly a Lubricated Plug Valve is used. Metal seat lubricated plug valve  is a quarter-turn valve, which is beneficial for rapid and frequent operation.

Metal seat lubricated plug valve is used to decrease friction and sealing of the ports by using the lubricant generally consists of a base oil and viscosity improver that is injected under pressure between the face and the body seat in the plug.

Lubricated plug valve manufacturers suggest lubricants that are suited to the fluid process, and valves frequently have to reseal after just a few cycles and in certain circumstances after every cycle.

The tightly sealed seat with lubricating oil is meant to decrease friction between the valve body and the sealing surface of the plug. A layer of oil film between the valve body and the sealing surface of the plug cone confirms the tight seal and smoothens the open/close motion when high-pressure sealing oil is injected around the plug to form a high-pressure seal ring.

Metal seat lubricated plug valve Specification
Size Range : NPS 1/2 to NPS 48

Class Range : 150LB to 2500LB
Design Standard : API6D / API599
Fire Standard : API 6FA
End Connection : RF / Threaded / BW
Operation  : Manual Lever / Pneumatic / Electrical
Pressure Rating : ANSI Class 150 to Class 2500
Temperature Range : -46°C to +450°C
Pressure Testing : API 598 / API 6D / EN 12266-1/ISO 5208

Metal seat lubricated plug valve application
Metal seat lubricated plug valve is considered to be high-maintenance plug valves; they are commonly employed in special applications. For example, lubricated plug valves work effectively in operations that use fluids containing slightly abrasive particles, such as polluted upstream applications, gas pipeline systems requiring bypass valves, and blow-down valves on valve stations and kicker valves.Some industries where Metal seat lubricated plug valve is used:Pulp & Paper, Mining, for metal works.Wastewater management, Midstream transportation, Downstream processing, etc.