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Safety & Pressure Relief Valves

Control Valves & Instrumentation

Flame Arresters & Tank Venting Equipment
Safety & Pressure Relief Valves
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Emergency Vent Covers
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Threaded Relief Valves

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Safety & Pressure Relief Valves
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TAYLOR 8250 Series Safety Relief Valve

pressure systems Air pressure systems Gas pressure systems Liquid
Quick Info
Inlet Sizes
DN15 - DN80 | 1/2" - 3"
(Threaded NPT or Flanged)
Pressure Rating
1.03 - 689 bar | 15 - 10,000 psig *
Temperatures
-251°C to 260°C
Approvals
ASME VIII Div 1 (Air, Gas & Liquids)
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LESER Type 437 Compact Performance Safety Relief Valve (Threaded)

pressure systems Air pressure systems Gas pressure systems Liquid pressure systems Steam
Quick Info
Inlet Sizes
DN10 - DN25 | 1/2" - 1"
(Threaded BSP/NPT)
Pressure Ratings
0.1 - 365 bar | 1.5 - 5294 psig
Materials
SA 479 430, SA 479 316L
Approvals
PED/ DIN EN ISO 4126-1, AD 2000-Merkblatt A2, ASME Sec. VIII Div. 1, CRN, AQSIQ, EAC
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LESER Type 459 Compact Performance Safety Relief Valve (Threaded)

pressure systems Air pressure systems Gas pressure systems Liquid pressure systems Steam
Quick Info
Inlet Connection
DN15 - DN40 | 1/2" - 1 1/2"
(Threaded BSP/NPT)
Pressure Rating
0.2 - 250 bar | 2.9 - 3626 psig
Temperatures
-273 to 450 °C | -459 to 842 °F
(acc. DIN EN)
Approvals
PED/ DIN EN ISO 4126-1, AD 2000-Merkblatt A2, ASME Sec. VIII Div. 1, CRN, AQSIQ, EAC
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AQUATROL 563 Series Safety Relief Valve

pressure systems Steam
Quick Info
Inlet Connections
DN15 - DN65 | 1/2" - 2.1/2" (NPT/BSPT)
Pressure Rating
0.1 - 20.7 Bar | 15 - 250 PSI
Temperature
-29°C to 218°C | -20°F to 425°F
Approvals
ASME Section 1
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AQUATROL 743 Series Safety Relief Valve

pressure systems Air pressure systems Gas pressure systems Liquid pressure systems Steam
Quick Info
Inlet Connections
DN15 - DN80 | 1/2" - 3" (NPT/BSP/ANSI Flanged)
Pressure Ratings
0.1 - 103.4 Bar | 15 - 1500 PSI ~ Air/Gas/Liquid
0.1 - 20.7 Bar g | 15 - 300 PSI ~ Steam
Temperature
-196°C to 427°C | -320°F to 800°F
Approvals
ASME VIII Div 1, CE & CRN
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AQUATROL 742 Series Safety Relief Valve

pressure systems Air pressure systems Gas pressure systems Liquid pressure systems Steam
Quick Info
Inlet Connections
DN15 - DN80 | 1/2" - 3" (NPT/BSP/ANSI Flanged)
Pressure Rating
0.1 - 103.4 Bar | 15 - 1500 PSI ~ Air/Gas/Liquid
0.1 - 20.7 Bar g | 15 - 300 PSI ~ Steam
Temperatures
-20°C to 427°C | -29°F to 800°F
Approvals
ASME VIII Div 1, CE & CRN
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AQUATROL 741 Series Safety Relief Valve

pressure systems Air pressure systems Gas pressure systems Liquid pressure systems Steam
Quick Info
Inlet Sizes
DN15 - DN80 | 1/2" - 3" (NPT/BSP/ANSI Flanged)
Pressure Rating
0.1 - 103.4 Bar | 15 - 1500 PSI ~ Air/Gas/Liquid
0.1 - 20.7 Bar g | 15 - 300 PSI ~ Steam
Temperature
-196°C to 208°C | -320°F to 425°F
Approvals
ASME VIII Div 1, CE & CRN
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AQUATROL 740 Series Safety Relief Valve

pressure systems Air pressure systems Gas pressure systems Liquid pressure systems Steam
Quick Info
Inlet Sizes
DN15 - DN80 | 1/2" - 3" (NPT/BSP/ANSI Flanged)
Pressure Rating
0.1 - 20.7 Bar | 15 - 300 PSI ~ Air/Gas/Liquid
0.1 - 17.2 Bar g | 15 - 250 PSI ~ Steam
Temperatures
-196°C to 208°C | -320°F to 406°F
Approvals
ASME VIII Div 1, CE & CRN