Purpose: protection of equipment and pipelines from destruction by overpressure by discharge of excess medium when the set pressure is exceeded.
Design features: Outlet pipe is larger than the inlet pipe by 2 sizes, without narrowing the passage, provides high flow capacity. Closed bonnet. Body made of high-strength cast iron, connection of body parts between each other - by studs, tightness is ensured by vapour gaskets. Lever forced detonation.
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