Robinson Valve Co.,Ltd ROBINSON VALVE

Pressure Balance Plug Valve

Contact Now
Pressure Balance Plug Valve

Construction introduction about the pressure balance tapped plug valve

The plug position is adjusted by the bolt of the cover,and the seal grease is injected from the end of the stem into the body.

In order to prevent the medium pressure force the plug into the seat,the end of the plug have the balance hole,and the balance hole in the small end of the plug have the check valve which make the medium just can reach the small end,

it can let the pressure into the cavity of the plug both end. The sealing is depend on the sealing grease of the plug and body to achieve.This design of the pressure balance plug valve is suitable for the high pressure ,

the pressure can be Class 2500.

The pressure balance tapped plug valve can reach such a high pressure and keep the sealing,it main depend on machining precision and surface roughness of the  plug and body sealing face.

Production Range:

  • API6D ASME/ANSI 150 up to 2500 Lb API6A from API 2000 up to API 15000 Available in SHORT, VENTURI or REGULAR Pattern
  • DN 1/2” to 48” Class: up to 600
  • DN 1/2” to 36” Class: up to 900
  • DN 1/2” to 24” Class: up to 1500
  • DN 1/2” to 20” Class: up to 2500
  • DN 1 13/16” to 7 1/16” Class API 2000 to 15000 Psi


  • Manual Gear or Wrench Operated; Electric Actuator, Pneumatic/Hydraulic actuator single or double acting; Gas Over Oil; Electro Hydraulic 

Main Applications:

  • Critical bypass, vents, drains and blow-downs to atmosphere
  • Compressors & Pumps Isolations
  • Water/Slurry/Gas Injection system isolations
  • Any critical “Full ΔP” operation
Send Inquiry

Thanks for your interest,we will reply you within 24 hours