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R21
Choose a version from the table underneath, please.
Description:
Piston-operated regulator with balanced valve design and high-relief flow. Features include a transparent pressure-calibrated, non-rising adjusting dial which can be mounted in any position so the dial face is always visible. Pressure setting in steps is possible.
Media: compressed air
Supply_pressure: max. 21 bar, minimum 1 bar above outlet pressure
Air_consumption: max. 1.4 l/min depending on outlet pressure
Adjustment: The full secondary pressure range can be dialed in less than a 270° turn proportional to handwheel
with scale in bar or psi. This is advantageous if secondary pressure must be changed frequently.
Relieving_function: relieving
Gauge_port: G1/4 on both sides of the body
Mounting_position: any
Temperature_range: 0 °C to 65 °C / 32 °F to 149 °F
Body: zinc die-cast
Piston: acetal
O-ring: NBR/Buna-N
Valve_seat: acetal, brass and NBR/Buna-N
| part number | connection | supply pressure max. [bar] | pressure range [bar] | flow rate air [Nl/min] | Kv [m³/h] | Price |
|---|---|---|---|---|---|---|
| R21-C2-L | G1/4 | 21 | 0...3,0 | 3000 | 2,5 | 348,19 € |
| R21-C2-O | G1/4 | 21 | 0...11 | 3000 | 2,5 | 197,82 € |
| R21-C3-L | G3/8 | 21 | 0...3,0 | 4500 | 3,8 | 331,85 € |
| R21-C3-O | G3/8 | 21 | 0...11 | 4500 | 3,8 | 298,65 € |
| R21-C4-L | G1/2 | 21 | 0...3,0 | 5000 | 4,2 | 203,87 € |
| R21-C4-O | G1/2 | 21 | 0...11 | 5000 | 4,2 | 298,65 € |
