Booster Relay

BR Booster Relay is designed to meet conventional speed control applications. It produces a volume boosting action and contains an integral stabilizing by-pass valve, adjustable by a screw. Opening this valve it is possible to improve the stability of the system composed by positioner - volume booster - actuator.

This product is specifically designed to be piloted by a digital-pneumatic valve controller, such as our FTC positioner.


  • Collectable exhaust
  • Compact dimensions
  • Regulation screw is not ejectable by internal air pressure
  • Unique high CV value comparing other 1/2” boosters
  • Without deformable diaphragm

Technical data

Operating pressure

3÷7 bar

(design pressure 10 bar)

Standard operating temperature

-20°C to 70°C

(lower or higher temperature on request)

Housing materials

Stainless steel 316


CV max

 Inlet = 3,8

Outlet = 4

Pilot signal connection

ND 1/4”

Output connections

ND 1/2”

Contact us for more information