Model 3630 constant flow regulator comes with a choice of an AISI 316 stainless steel or aluminum body. It is a sturdy, industrial constant flow regulator.

It is designed to provide a constant flow of liquids in applications where supply or backpressure varies and to provide a constant flow of gases in applications where backpressure varies. It is a membrane type differential pressure controller and is supplied with Model L variable area flow meter for flow rate indication and setting.

Typical applications are water purging for instruments, gas purging in Δp measurements and hydrostatic density measurements.

Technical data

Max. flow 1,5 l/min H2O (60 Nl/min air at 6 barg)
Max. diff. pressure 10 bar
Max. static pressure 20 bar (30 bar / 30°C)
Pressure drop at nominal flow 2 bar
Max. temperature 75°C (*80°C)
Body Aluminium or AISI 316
Spring AISI 316
Membrane EPDM
Plate Nylon (PA 6) (*PVDF)
Seals Nitrile (*Viton®)
Connections BSP 1/4″ or NPT 1/4″
Weight 500 g (Aluminium body) tai 1100 g (AISI 316 body)
Installation position Vertically
*) Special construction on request