Advanced Pressure Safety Solutions

Industry-leading valve technology for reliable overpressure protection.

API CC

Safety valves according to API 526 with standardized capacities, installation dimensions and materials

  • Standardized design and selection according to API 520
  • Wide range of high-alloy materials available in standard delivery times
  • Longer service life due to hardened discs, stellited seats and shielded bellows
  • LESER Nanotightness exceeds API 527 tightness requirements by 50%

Technical data API Safety valves

Set pressure 0.2 - 400 barg | 2 - 5,802 psig
Temperature -273 - 550 °C | -450 - 1,000 °F
Capacity orifice D to T
Connections DIN EN 1092 DN 25 to DN 200
Connections ASME B16.5 NPS 1 to NPS 8
Body material Carbon steel, heat resistant Carbon steel, Stainless steel

Pilot-Operated CC

Solutions for high plant efficiency

  • Adaptation of the functional behavior to the operating conditions possible
  • Operating pressures up to 97% of set pressures
  • Back pressures up to 95% of set pressures
  • Low loss of medium during the blow-off proce

Technical data Pilot-Operated Safety Valves

Set pressure 1,0 - 650,0 barg | 15,0 - 9427,0 psig
Temperature -162 - 300 °C | -260 - 572 °F
Capacity Orifice D to T+
Connections DIN EN 1092 DN 25 to DN 200
Connections ASME B16.5 NPS 1 to NPS 8
Body material Carbon steel , Stainless steel

Compact Performance CC

Safety valves with compact dimension and variable connections

  • Flanged and threaded valves with a flexible range of options to suit your application
  • Bellows version available
  • Set pressures up to 1.000 bar / 14,504 psig

Technical data API Safety valves

Set pressure 0.2 - 400 barg | 2 - 5,802 psig
Temperature -273 - 550 °C | -450 - 1,000 °F
Capacity orifice D to T
Connections DIN EN 1092 DN 25 to DN 200
Connections ASME B16.5 NPS 1 to NPS 8
Body material Carbon steel, heat resistant Carbon steel, Stainless steel

The above three products are the main applied products in various industries, accounting for 90% of the annual sales volume. In addition to these, LESER also has many products dedicated to special industries. Please refer to the following table for details:

Valve Type Application
High Performance High discharge capacity requirement
Critical Service Corrosive medium
Clean Service Food, pharmaceutical and cosmetic industries
Best Availability Non – stop operation requirement

Please note that LESER do not merely offer safety valve products. Instead, we provide professional pressure protection solutions. If you have requirements for pressure protection solutions, you are welcome to contact us. We will provide you with professional pressure protection solutions and sizing / calculations for safety valve products.