Compressed air pressure regulator R20 - R21

for inert gasespistonsingle-stage

Piston-operated high-capacity regulator of modular design with exchangeable inserts. Can be interlocked with filter or lubricator without double nipples. Each ”maxi” regulator may be taken from a fixed line in seconds simply by removing the mounting bolts. Media: compressed air or non-corrosive gases Supply pressure: max. 21 bar Adjustment: R20: by plastic knob with snap-lock R21: by T-handle with locknut Relieving function: relieving, optionally non-relieving Gauge port: G1/4 on both sides of the body, screw plugs supplied Mounting position: any Temperature range: R20: 0 °C to 50 °C / 32 °F to 122 °F R21: 0 °C to 80 °C / 32 °F to 176 °F Body: zinc die-cast Spring cage: zinc die-cast, adjusting knob made of with glass fibre-reinforced plastic Elastomer: NBR/Buna-N Inner valve: brass and plastic