The Series 500 High Lift Safety Relief Valve has been designed primarily for use on unvented hot water heating systems, where a high capacity, emergency steam relief capability is required.
High Capacity and resilient PTFE seating also make the Fig 500 ideal for steam, air and inert gas applications. A PTFE to Viton® seating design is available where greater seal tightness is required.
The Series 500 safety relief valve is constructed in gunmetal, with diaphragm protected working parts and PTFE tp metal seating. All wetted parts are manufactured from dezincification resistant materials, approved by the Water Regulations Advisory Scheme for use on potable water.
Standard inlet and outlet connections have female threads to BS 21, with the outlet connection one size larger than the inlet.
| Technical Data Summary |
| Specification Details |
|
| Body Material |
Gunmetal |
| Maximum Set Pressure |
12.5 bar |
| Maximum Temperature |
195°c |
| Design Features |
|
|
Resilient PTFE Seating Design |
|
High degree of seat tightness |
|
Suitable for hot water, steam and air |
|
High discharge capacity |
|
Diaphragm protected working parts |
|
Safe manual testing |
|
Easy inspection and cleaning |
|
Pressure setting locked and sealed |
|
Designed and tested to BS 6759 |
| Approvals |
|
|
Capacities certified by AOTC |
|
Approved by Water Regulations Advisory Scheme |
|
UKWFBS Listed |
| Optional Features |
|
| |
Padlock available |