RE | RA - Mechanical differential pressure regulators

Differential pressure regulators are used in particular when measuring gases in order to ensure constant flow rates in the case of fluctuating inlet or outlet pressure..

Minimum pressure levels are necessary to operate the regulators. Differential pressure regulators are not pressure reducing valves. The regulators are available in brass or stainless steel.

 

Inlet pressure regulator
(POutlet = const) 		Outlet pressure regulator
(PInlet = const) 		Qmax | Pmin
RE-1000 RA-1000 40 l/h water
1000 Nl/h air
Pmin= 0.5 bar
RE-4000 RA-4000 160 l/h water
4000 Nl/h air
Pmin= 1.0 – 2.0 bars
NRE-100
(Low pressure)		   2,5 l/h water
100 Nl/h air
Pmin= 0.1 bar
NRE-800
(Low pressure)		 NRE-800
(Low pressure)		 25 l/h water
800 Nl/h air
Pmin= 0.1 – 0.4 bar


Example inlet pressure regulator

  • Current flow : 1000 l/h air
  • Outlet pressure p2 constant (Atmosphere: 1.013 bar abs.)
  • The flow rate remains constant in the device in the case of fluctuating inlet pressure p1 greater than 1 bar

Example outlet pressure regulator

  • Current flow: 800 l/h air
  • Inlet pressure regulator p1 constant: 6 bar
  • The flow rate in the device is constant in the case of a fluctuating outlet pressure p2 of 0 to 5.5 bar