pressure vacuum relief valve

Product Description

Direct acting pressure/vacuum relief valves (also known as breather valves, conservation vents, or safety vents) are low pressure devices specifically designed to protect tanks, process systems and equipment from excessive pressure and vacuum.

The range includes pressure only, vacuum only and combined pressure/vacuum valves, all available with flanged outlets or vented to atmosphere.

Pressure and vacuum protection levels are controlled with weighted pallets or springs and can be combined to provide the required pressure/vacuum settings. It is common to combine pallet and spring systems in one unit i.e. pressure settings require a spring section, whilst the vacuum settings use the pallet method.
 

Due to its air-cushioned sealing technology, Motherwell valves prevent emission losses until very close to the set pressure, and prevents air intake until very close to the set vacuum.

The modular nature of Motherwells valves means they can be tailored to meet specific customer requirements: whether this is pressure or vacuum-protection only; or vapours and gases either piped-away or vented to atmosphere.

• Available in Aluminium, Cast Iron, Carbon Steel, Stainless steel & other metals upon request
• We will line and coat valves if this is required
• Flow curves available for all our Breather valves,
• Breather Valve Servicing and resetting available upon request
• Our free valve sizing service ensures you have the right valve for you tank, let us advise you on the best breather valve for you tank