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IMI Bopp & Reuther
Si 8 - High Flow Safety Valve
Si 8 Series safety relief valves offer API 526 design, ASME VIII & PED compliance, and reliable overpressure protection.
Handles high-flow capacities for demanding applications.
Certified to API 526, ASME VIII, and PED for compliance.
Optimised design ensures high tightness and durability.
Features
The Si 8 Series safety relief valves provide reliable overpressure protection for demanding industrial applications, designed to API Standard 526 and certified for ASME VIII and PED compliance. They feature a full nozzle design and a one-trim configuration for gas, vapour, and liquid applications. With orifice sizes from D to T, as well as extended options for very large flow capacities (V and W), they ensure high performance in refineries, chemical plants, and power facilities.
Key features
Set pressures: 0.5–414 bar
Temp range: -268°C to +538°C
Full nozzle design for durability
Positive lift stop for safety
Material flexibility for industries
Optional heating jackets & bellows
Specifications
Fluid Types
Liquid
Gas
Vapour
Material (EN)
EN 1.0619
EN 1.7357
EN 1.6220
EN 1.4408
PN Rating (PN)
400
Maximum Set Pressure (barg)
414
Material (ASME)
ASME WCB
ASME WC6
ASME LCB
ASME CF8M
Inlet Size (DN)
25
300
Design Codes
EN
API
ASME UV
Service Category
General
Semi-Severe
Max. ASME Rating
2500
Certification
PED
ASME UV
IBR
Temperature Limits (°C)
-268 to 538
Resources
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