The IMI Bopp & Reuther Si 6 High Flow Safety Valve provides reliable overpressure protection for steam, gas, and liquid applications in power, chemical, and process industries. Designed for high-capacity discharge, it supports pressures up to 250 bar and operates across a wide temperature range from -270°C to 550°C. The solid nozzle design ensures long-term durability, while an optional bellows allows for effective backpressure management and improved lift control. With low blowdown characteristics and compliance to PED and DIN/EN standards, the Si 6 is an ideal solution for safe and efficient system protection in extreme service environments.

Key features

Suitable for steam, gas, and liquids

DN 25 to DN 400

-270°C to 550°C

Up to 250 bar

Solid inlet nozzle

Optional bellows

Low blowdown

High discharge capacity

PED and DIN/EN certified

Customisable to system requirements