Spring Slightly Open External Thread Safety Valve

The spring micro-opening type external thread safety valve designed by Dazhong Valve Group is a cooperative brand of YOY Yongyi Valve Group safety valve, A21F, A21H-C type are suitable for air, ammonia, petroleum gas... on the pipeline. A21W-P, R type is suitable for the equipment or pipeline with corrosive gas or liquid with temperature ≤200℃, as an overpressure protection device. KA21Y type is suitable for liquefied petroleum gas with temperature ≤100℃. This safety valve generally needs to be installed horizontally.

A21F, A21H-C types are suitable for equipment or pipelines of air, ammonia, petroleum gas, etc. with a working temperature of ≤200℃.
A21W-P, R type is suitable for the equipment or pipeline with corrosive gas or liquid with temperature ≤200℃, as an overpressure protection device. KA21Y type is suitable for liquefied petroleum gas with temperature ≤100℃.
This safety valve generally needs to be installed horizontally.

Parameters

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Spring Slightly Open External Thread Safety Valve

Spring micro-opening external thread safety valve parameters

Spring Slightly Open External Thread Safety Valve

A21F, A21H-C types are suitable for equipment or pipelines of air, ammonia, petroleum gas, etc. with a working temperature of ≤200℃.

A21W-P, R type is suitable for the equipment or pipeline with corrosive gas or liquid with temperature ≤200℃, as an overpressure protection device. KA21Y type is suitable for liquefied petroleum gas with temperature ≤100℃.

This safety valve generally needs to be installed horizontally.

Parameters