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A toxic material pressure relief valve is formed by a valve body having a lateral bore and an inline bore forming a fluid passageway intersected by a valve seat in axial alignment with the lateral bore. A bonnet closes the lateral bore and slidably supports a stop in a fluid leak collection chamber

A toxic material pressure relief valve is formed by a valve body having a lateral bore and an inline bore forming a fluid passageway intersected by a valve seat in axial alignment with the lateral bore. A bonnet closes the lateral bore and slidably supports a stop in a fluid leak collection chamber and one end of a valve, with the other end of the valve stem normally closing the valve seat. A pin cage axially supports a collapsible pin normally maintaining the valve stem on seat while the working pressure of the toxic material is within predetermined limits.

대표청구항 ▼

[ What is claimed is:] [1.]1. A pressure responsive relief valve for monitoring fluid pressure in a toxic material system, comprising:a valve body having a lateral bore and having a central inline bore forming a fluid passageway and adapted to be interposed in a fluid line;a transverse partition div

[ What is claimed is:] [1.]1. A pressure responsive relief valve for monitoring fluid pressure in a toxic material system, comprising:a valve body having a lateral bore and having a central inline bore forming a fluid passageway and adapted to be interposed in a fluid line;a transverse partition dividing the fluid passageway and having a bore axially aligned with the lateral body bore;stem and stop means in the lateral bore for normally closing the partition bore;axially bored bonnet means closing the lateral body bore and slidably supporting the stem and stop means and having a counterbore opposite the partition bore forming a toxic fluid leak containing compartment surrounding the stop means; and,axially collapsible pin means for normally maintaining said stem and stop means in fluid passageway closed position and opening the fluid passageway in response to fluid pressure above a predetermined value.