1.Installation Location

Must be installed vertically and as close as possible to the protected equipment or pipeline.

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2.Maintenance and Lifting

A maintenance platform is recommended.

For heavy valves, provide lifting provisions (e.g., lifting lugs) for handling after removal.

3.Inlet Piping

Use long-radius elbows to minimize flow resistance.

4.Outlet Backpressure Control

Design outlet piping to limit backpressure.

For conventional spring-type safety valves, backpressure should not exceed 10% of the set pressure.

5.Discharge Media Handling

When discharging condensable vapors or liquids, the valve outlet must be above the header or have drainage provisions.

6.Discharge into Closed Systems

Outlet piping should connect at a 45° angle to the top of the discharge header (in flow direction) to prevent liquid backflow and reduce backpressure.

Isolation and Bypass Valves

Use single-disc gate valves for isolation, locked open and installed with the stem horizontal.

Bypass valves (if any) must be locked closed.