RDA

Description:
Vacuum pressure regulator with large, effective diaphragm sensing area for quick response, reliable
regulation and long service life. Adjustable stop at RDV and RDA allows outlet pressure to be limited to
any value between maximum rated and less than 50% of maximum value.

Media: compressed air or non-corrosive gases
Proof_pressure: 150% of the max. supply pressure
Adjustment: by black plastic knob, for control panel integration
Relieving_function: non-relieving
Gauge_port: none, optionally 1/4" NPT for outlet pressure
Mounting_position: any

Supply_pressure:
RDV = max. 4 bar
RDA = max. 310 bar
RD4 = max. 28 bar

Temperature_range:
RDV and RDA = -25 °C to 75 °C / -13 °F to 167 °F
RD4 = -40 °C to 75 °C / -40 °F to 167 °F

Leakage_rate:
RDV and RDA = bubble-tight
RD4 = outward < 2 x 10-8 mbar l/s He

Body:
RDV and RDA = brass, optionally nickel-plated aluminium
RD4 = 316 stainless steel

Diaphragm:
RDV and RDA = NBR/Buna-N, optionally EPDM or FKM
RD4 = 316 stainless steel

Valve_seat:
RDV and RDA = CTFE
RD4 = PTFE

Inner_valve:
RDV and RDA = stainless steel and brass
RD4 = 316 stainless steel