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Safety & Pressure Relief Valves
Control Valves & Instrumentation
Flame Arresters & Tank Venting Equipment
Safety & Pressure Relief Valves
Brass & Bronze Safety Relief Valves
Flanged Safety Relief Valves
Special Service Relief Valves
Threaded Relief Valves
Thermal Relief Valves
Control Valves & Instrumentation
Control & Bypass Valves
Gauge Plugs, Probes & Instrumentation
Choke Valves
Anti Siphon Valve
Flame Arresters & Tank Venting Equipment
Emergency Vent Covers
End-of-Line Flame Arresters
Inline Flame Arresters
Pressure Vacuum Relief Valves
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Safety & Pressure Relief Valves
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Products
Safety & Pressure Relief Valves
Special Service Relief Valves
Safety & Pressure Relief Valves
Safety & Pressure Relief Valves
Brass & Bronze Safety Relief Valves
Flanged Safety Relief Valves
Special Service Relief Valves
Threaded Relief Valves
Thermal Relief Valves
LESER Series 488 Clean Service Safety Relief Valve
Air
Gas
Liquid
Steam
Quick Info
Inlet Sizes
DN 25 - DN 100 | 1" - 4"
Pressure Ratings
0.1 - 16 bar | 1.5 - 232 psig
Temperatures
-45 to 250 °C | -49 to 482 °F
Approvals
PED/ DIN EN ISO 4126-1, PED/ AD 2000-Merkblatt A2, ASME Sec. VIII Div. 1, CRN, AQSIQ, EAC
LESER Series 485 Clean Service Safety Relief Valve
Air
Gas
Liquid
Steam
Quick Info
Inlet Sizes
DN 25 - DN 40 | 1'' - 2''
Pressure Ratings
0.1 - 16 bar | 1.5 - 232 psig
Temperatures
-45 to 250 °C | -49 to 482 °F
Approvals
PED/ DIN EN ISO 4126-1, PED/ AD 2000-Merkblatt A2, ASME Sec. VIII Div. 1, CRN, AQSIQ, EAC
LESER Series 484 Clean Service Safety Relief Valve
Air
Gas
Liquid
Steam
Quick Info
Inlet Size
DN 25 - DN 40 | 1'' - 2''
Pressure Ratings
0.1 - 16 bar | 1.5 - 232 psig
Temperatures
-45 to 250 °C | -49 to 482 °F
Approvals
PED/ DIN EN ISO 4126-1, PED/ AD 2000-Merkblatt A2, ASME Sec. VIII Div. 1, CRN, AQSIQ, EAC
LESER Series 483 Clean Service Safety Relief Valve
Air
Gas
Liquid
Steam
Quick Info
Inlet Sizes
DN 25 - DN 40 | 1" - 2"
Pressure Ratings
0.1 - 16 bar | 1.5 - 232 psig
Temperatures
-45 to 150 °C | -49 to 302 °F
Approvals
PED/ DIN EN ISO 4126-1, PED/ AD 2000-Merkblatt A2, ASME Sec. VIII Div. 1, CRN, AQSIQ, EAC
LESER Series 481 Clean Service Safety Relief Valve
Air
Gas
Liquid
Steam
Quick Info
Inlet Sizes
DN15 - DN25 | 1/2" - 1"
(Clamps to ASME, DIN32676/ISO2852 Threaded)
Pressure Ratings
0.1 - 68 bar | 1.5 - 986 psig
Temperatures
-45 to 250 °C | -49 to 482 °F
(in accordance with DIN EN)
Approvals
PED/ DIN EN ISO 4126-1, PED/ AD 2000-Merkblatt A2, ASME Sec. VIII Div. 1, CRN, AQSIQ, EAC
LESER Series 447 Critical Service Safety Relief Valve
Gas
Liquid
Steam
Quick Info
Inlet Sizes
DN25 - DN100 | 1" - 4"
Pressure Ratings
0.1 - 16 Bar | 1.45 - 232 PSI
PN16 | ANSI 150#
Temperatures
-85°C to 200°C
Approvals
PED, DIN EN ISO 4126-1, ASME VIII, TÜV SV100 and AD 2000-Merkblatt A2, CRN
Air
Gas
Liquid
Steam