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Contact Us for International Shipping!
Worldwide Delivery Available.
FREE SHIPPING on orders over 10,000 EURO!
Contact Us for International Shipping!
Worldwide Delivery Available.
FREE SHIPPING on orders over 10,000 EURO!
Contact Us for International Shipping!
Worldwide Delivery Available.

Proportional Safety Relief Valves

Smooth and controlled discharge for sensitive processes. ORFA Industrial proportional safety valves open in proportion to the pressure increase, protecting your system without causing shocks.

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Total 45 products
ARI® SAFE P 55.921 Proportional Release Safety Valve PN40 DN100
ARI® SAFE P 55.921 Proportional Release Safety Valve PN40 DN100
19.748,28 USD
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ARI® SAFE P 55.921 Proportional Release Safety Valve PN40 DN80
ARI® SAFE P 55.921 Proportional Release Safety Valve PN40 DN80
12.916,20 USD
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ARI® SAFE P 55.921 Proportional Release Safety Valve PN40 DN65
ARI® SAFE P 55.921 Proportional Release Safety Valve PN40 DN65
11.241,41 USD
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ARI® SAFE P 55.921 Proportional Release Safety Valve PN40 DN50
ARI® SAFE P 55.921 Proportional Release Safety Valve PN40 DN50
7.712,92 USD
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ARI® SAFE P 55.921 Proportional Release Safety Valve PN40 DN40
ARI® SAFE P 55.921 Proportional Release Safety Valve PN40 DN40
6.706,00 USD
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ARI® SAFE P 55.921 Proportional Release Safety Valve PN40 DN32
ARI® SAFE P 55.921 Proportional Release Safety Valve PN40 DN32
5.985,31 USD
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ARI® SAFE P 55.921 Proportional Release Safety Valve PN40 DN25
ARI® SAFE P 55.921 Proportional Release Safety Valve PN40 DN25
4.852,31 USD
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ARI® SAFE P 55.921 Proportional Release Safety Valve PN40 DN20
ARI® SAFE P 55.921 Proportional Release Safety Valve PN40 DN20
4.624,00 USD
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ARI® SAFE P 55.921 Proportional Release Safety Valve PN40 DN15
ARI® SAFE P 55.921 Proportional Release Safety Valve PN40 DN15
4.576,30 USD
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ARI® SAFE P 35.921 Proportional Release Safety Valve PN40 DN100
ARI® SAFE P 35.921 Proportional Release Safety Valve PN40 DN100
6.447,03 USD
5.608,91 USD
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ARI® SAFE P 35.921 Proportional Release Safety Valve PN40 DN80
ARI® SAFE P 35.921 Proportional Release Safety Valve PN40 DN80
4.329,25 USD
3.766,45 USD
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ARI® SAFE P 35.921 Proportional Release Safety Valve PN40 DN65
ARI® SAFE P 35.921 Proportional Release Safety Valve PN40 DN65
3.361,52 USD
2.924,52 USD
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ARI® SAFE P 35.921 Proportional Release Safety Valve PN40 DN50
ARI® SAFE P 35.921 Proportional Release Safety Valve PN40 DN50
2.657,87 USD
2.312,34 USD
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ARI® SAFE P 35.921 Proportional Release Safety Valve PN40 DN40
ARI® SAFE P 35.921 Proportional Release Safety Valve PN40 DN40
2.201,26 USD
1.915,09 USD
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ARI® SAFE P 35.921 Proportional Release Safety Valve PN40 DN32
ARI® SAFE P 35.921 Proportional Release Safety Valve PN40 DN32
1.978,07 USD
1.720,92 USD
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ARI® SAFE P 35.921 Proportional Release Safety Valve PN40 DN25
ARI® SAFE P 35.921 Proportional Release Safety Valve PN40 DN25
1.916,73 USD
1.667,56 USD
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ARI® SAFE P 35.921 Proportional Release Safety Valve PN40 DN20
ARI® SAFE P 35.921 Proportional Release Safety Valve PN40 DN20
1.889,47 USD
1.643,84 USD
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ARI® SAFE P 35.921 Proportional Release Safety Valve PN40 DN15
ARI® SAFE P 35.921 Proportional Release Safety Valve PN40 DN15
1.853,69 USD
1.612,71 USD
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ARI-SAFE 12.924 Proportional Release Safety Valve DN100 PN16
ARI-SAFE 12.924 Proportional Release Safety Valve DN100 PN16
3.499,52 USD
2.484,66 USD
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ARI® SAFE P 12.924 Proportional Release Safety Valve PN16 DN80
ARI® SAFE P 12.924 Proportional Release Safety Valve PN16 DN80
2.460,23 USD
1.746,76 USD
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System Stability with Proportional Discharge

Unlike full-lift valves, proportional lift safety valves open gradually as pressure rises. This design minimizes water hammer and system vibration during discharge, making them ideal for liquid applications where stability is key.

Key Features

  • • Linear Response: Gradual opening according to the pressure set point.
  • • Material Options: Available in Brass, Cast Iron, and Stainless Steel bodies.
  • • Reliable Sealing: Metal-to-metal or soft-seated (PTFE/Viton) options.
  • • Versatility: Ideal for pumping systems and industrial cooling circuits.