Instrumentation & Electrical : Safety Relief Valve

Marvac manufacture an extensive range of products to protect low pressure storage tanks and vessels. These products help to prevent the tanks contents from escaping, ensuring the safety of personnel and the surrounding environment. Marvac Tank Protection Valve is designed to provide the optimum safety solution

Product Type

Pressure / Vacuum Relief Valves
A range of pressure only, vacuum only and combined pressure and vaccum relief valves to alleviate the problems caused by the thermal effects and the filling and emptying of storage tanks and vessels.

Pilot Operated Relief Valves
To provide accurate pressure relief when operating near to the design pressure of the tank and also to overcome the problems of backpressure generated at the discharge of the valve due to pipework, scrubbers etc.

Tank Blanketing Valves
Dedicated to provide inert or rich blanketing of storage tanks to reduce harmful fugitive emissions and reduce the evaporation of product.

Emergency Vent Manway and Gauge Hatch
To provide over pressure protection in the event of the tank being subjected to fire exposure and to provide access to the vessel from the top for internal inspection. Gauge hatches to provide for product level measurement and sampling.

Pressure & Temperature

Marvac products can operate within a range of -800 mbarg to 1.5 barg and -40°C to 150°C. However, Marvac's vast technical experience often allows these parameters to be extended on consultation with the factory.

  • Storage tank applications
  • Sewage plants
  • Waste water treatment
  • Breweries / distilleries
  • Pharmaceutical
  • Chemical
  • Shipping
  • Petroleum
  • Powder silos