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Pressure Vacuum Relief Valve with Flame Arrestor (End of line, spring loaded, combination, atmospheric deflagration proof)

  • Pressure Vacuum Relief Valve with Flame Arrestor (End of line, spring loaded, combination, atmospheric deflagration proof)

Model No: 331

The assembly of this pressure relief valve with an effective flame arrestor will enhance the safety of personnel, site location, and equipment, by reducing or eliminating the risk of flashover through the vent.


The unit will comprise:

MODEL 300 : Flame Arrestor In-line Deflagration
MODEL 101 : Pressure Vacuum Relief Valve (Spring-loaded, End-of-Line)

Design & Manufacturing Specifications

The size of the vent should be calculated in accordance with API Standard 2000 (ISO 28300) - Venting Atmospheric and Low-Pressure Storage Tanks or other international standards.


Additional Information

Data Sheet Pressure Relief, Vacuum Relief, and Pressure-Vacuum Relief Valves
Data Sheet Model 300 In-line Deflagration Flame Arrestor
Data Sheet Model 101 Pressure-vacuum Relief Valve (spring-loaded; discharge to atmosphere)



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