Section Code 2210 : Pressure relief.
Back To Directory SectionsPre-set, angled pressure relief valves (set at 2.0, 2.5, 3.0, 3.5, 4.0, 5.0, 6.0, 7.0 & 8.0 bar) with DZR Brass bodies and EPDM diaphragm. The valves are fitted with a rotary type easing gear. Supplied with or without pressure gauge. Maximum operating temperature 100°C.
Range of pre-set angled pressure relief valves for solar applications with brass bodies and EPDM gaskets. Maximum working pressure 2.5 bar to 10.0 bar & maximum operating temperature 99°C
Range of bronze bodied pre-set pressure relief valves (available between 0.2-24 bar on each model) with brass seat and PTFE or EPDM washers. Models L3615A3277, L3620A3307, L3625A3337, L3632A3367, L3640A3397 & L3650A1427 incorporate a manually operated easing gear. Maximum operating temperature 85°C.
Range of pressure relief valves pre-set at 3.0 bar with brass bodies and a EPDM membrane. Valve incorporates a manually operated easing gear. Maximum operating temperature 85ºC.
Range of pre-set pressure relief valves (set at 3.0 bar or 6.0 bar) with DZR brass body, EPDM sealing gasket and NBR ‘O’-ring. Maximum operating temperature 100°C.
Range of pre-set angled pressure relief valves with brass bodies, EPDM rubber diaphragms, and EPDM or NBR ‘O’-rings. Pre-set relief pressures: 1.2 - 9.0 bar. From April 2017 Pre-set relief pressures: 1.0 - 10.0 bar. Maximum operating temperature 99°C.
Range of pre-set, spring loaded, angled pressure relief valves (set at 3.0 bar, except for B312021 model which is set at 4.0 bar), with plastic body and EPDM diaphragm. The valves are fitted with either rotary type easing gear or hand operated lifting gear. Maximum operating temperature 99°C.
Pre-set (7.0 bar) pressure relief valve with a glass reinforced plastic body and EPDM rubber diaphragm. The valve is fitted with a hand operated lifting gear. Maximum working pressure 7.0 bar. Maximum operating temperature 85°C.
Range of pre-set angled pressure relief valves (pre-set at 3.0 bar) with plastic bodies, EPDM rubber diaphragms and NBR rubber ‘O’-rings. Maximum working pressure 3.0 bar. Maximum operating temperature 99°C.
Range of pressure relief valves with gunmetal bodies, PTFE seal and fluoroelastomer rubber ‘O’-ring. The pre-set relief pressure varies depending on the spring ratings from 0.3bar to 10.5bar. Maximum operating temperature 100°C.
Pressure relief valve pre-set at 6.0 bar, with a brass body and EPDM seat washer. Maximum operating temperature 100°C.
Pre-set spring loaded, angled pressure relief valves (set at 3.0 bar) with brass body and EPDM diaphragms. The valves are fitted with hand operated easing gears. Maximum operating temperature 99°C.
Range of pressure relief valves with gunmetal bodies, PTFE seal and fluoroelastomer rubber ‘O’-ring. The pre-set relief pressure varies depending on the spring ratings from 0.3bar to 10.5bar. Maximum operating temperature 100°C.
Range of pre-set pressure relief valves (set at 3.0 bar) with a brass body and EPDM membrane. Valve incorporates a manually operated easing gear. Maximum working pressure 3.14 bar. Maximum operating temperature 90°C.
Cold water inlet control group consisting of pressure reducing valve (pre-set at 3.5 bar), expansion valve (pre-set at 6.0 bar) with a DZR brass body. The product incorporates a single check valve cartridge (suitable for back flow protection against Fluid Category 2) and a stainless steel strainer. The expansion valve is fitted with a rotary type easing gear. Maximum inlet supply pressure 16.0 bar. Cold water use only.
Range of pre-set (3.0 bar) pressure relief valves with plastic bodies and EPDM ‘O’-rings and membranes. The valves incorporate a lever manual easing gear. Maximum operating temperature 85°C.
Pre-set (3.0bar) pressure relief valves with DZR brass bodies, EPDM ‘O’ rings and silicone diaphragm. Maximum operating temperature 85°C.
Cold water inlet control group consisting of pressure reducing valve (pre-set at 3.0 bar) & pressure relief valve (set at 4.5 bar) with DZR brass bodies. The product also incorporates a check valve cartridge, verified by test (suitable for backflow protection against Fluid Category 2) and a stainless steel strainer. Maximum inlet supply pressure 16.0 bar. Cold water use only.
Range of pressure relief valves (pre-set at 6.0 bar or 8.0 bar) with DZR brass bodies and EPDM diaphragms. The products incorporate a single check valve cartridge (suitable for backflow protection up to Fluid Category 2). For cold water use only.
Pressure relief valve (pre-set at 6.0 bar) with DZR brass body and manually operated easing gear. Maximum operating temperature 100°C.
Range of angled pressure relief valves (pre-set at various pressures) with DZR brass or gunmetal bodies (PREL104020, PREL104046, PREL104047, PREL104015, PREL104023, PREL104048, PREL104049, PREL104012 models only) and EPDM rubber diaphragms. Maximum operating temperature 80°C.
Range of pressure relief valves with DZR brass bodies and EPDM diaphragm. Pre-set at pressures between 1.5 and 10.0 bar. Maximum operating temperature 100°C.
Pressure relief valve with a plastic body and rubber diaphragm. Pre-set at 3.0 bar. Maximum operating temperature 90°C.
Range of pre-set pressure relief valves (available between 0.2-24 bar on each model) with bronze bodies, brass seat and PTFE washers. Maximum operating temperature 85°C.
Pressure relief valve with brass body and rubber diaphragm. Pre-set at 3.0 bar. Maximum operating temperature 90°C.
Range of pre-set pressure relief valves (set at 10.0 bar) with a DZR brass body and EPDM shutter diaphragm. The valve incorporates a manually operated easing gear. Maximum operating temperature 85˚C.
Pressure relief valve with a brass body and rubber diaphragm. Pre-set at 3.0 bar. Maximum operating temperature 90°C.
‘Jet 806’ range of pressure relief valves incorporating gunmetal bodies, NBR diaphragms and lever operated easing gear. Each valve is available with a pre-set rating of between 0.3 and 12.5 bar inclusive, which is in increments of 0.1 bar. Maximum operating temperature 70˚C.
Range of pre-set (see model for pressures) angled pressure relief valves with DZR brass bodies and EPDM seat gaskets. Maximum operating temperature 95°C
Pressure relief valve with a brass body incorporating EPDM ‘O’ rings. The valve is fitted with a manually operated lever type lifting gear. Pre-set at 3.0 bar. Maximum operating temperature 90°C.
Range of factory pre-set, pressure relief valves with gunmetal bodies, incorporating fluoro-elastomer & FKM ‘O’-rings, PTFE seat seals and chrome vanadium steel springs. Maximum working pressure varies by model and spring. Fig 500L (Brown spring) - 4.1 bar – 6.1 bar. (Blue spring) - 6.2 bar – 8.2 bar. (Purple spring) - 8.3 bar – 10.2 bar. (Black spring) - 10.3 bar – 12.5 bar. Fig 542L (Brown spring) - 3.3 bar – 4.9 bar. (Blue spring) - 5.0 bar – 6.5 bar. (Purple spring) - 6.6 bar – 8.2 bar. (Black spring) - 8.3 bar – 10.5 bar. Maximum operating temperature 95˚C
Range of pre-set pressure relief valves incorporating DZR brass bodies and EPDM diaphragms. The inlet incorporates a check valve cartridge, verified by test (suitable for backflow protection against Fluid Category 2). Cold water use only.
Range of pre-set pressure relief valves (set at 3 bar) with brass bodies, EPDM membrane. Valves incorporate a manually operated easing gear. Maximum working pressure 10 bar. Maximum operating temperature 100°C
Pressure relief valve pre-set at 3.0 bar with a brass body and EPDM diaphragm. Maximum operating temperature 90°C.
Range of pre-set pressure relief valves (spring loaded) with DZR brass body and EPDM diaphragm. The valve is fitted with hand operated rotating easing gear. Model SRV0353SW0475 is set at 4.75 bar and SRV0350SW060 is set at 6.0 bar. Maximum operating temperature 85°C.
Range of pressure relief valves with gunmetal bodies, EPDM diaphragms and lever operated easing gear. Maximum shell working pressure varies by model (see below). The relief setting is adjustable within the range of 0.5 - 16.0 bar. Maximum operating temperature 99°C.
Range of pressure relief valves with gunmetal bodies, EPDM diaphragms and lever operated easing gear. Maximum shell working pressure varies by model (see below). The relief setting is adjustable within the range of 0.5 - 16.0 bar. Maximum operating temperature 99°C.
‘Jet 806’ range of pressure relief valves incorporating gunmetal bodies, NBR diaphragms and lever operated easing gear. Each valve is available with a pre-set rating of between 0.3 and 12.5 bar inclusive, which is in increments of 0.1 bar. Maximum operating temperature 70˚C.
Pressure relief valve (pre-set at 3.0 bar) with plastic body and EPDM membrane and seals. The valve incorporates a manually operated easing gear. Maximum operating temperature 90°C.
Range of pressure relief valves with plastic bodies and EPDM diaphragms and ‘O’-rings, Factory pre-set at 3.0 bar. Maximum operating temperature 110°C.
Cold water inlet control group consisting of pressure reducing valve (pre-set at 3.0 bar) & pressure relief valve (set at 4.5 bar) with DZR brass bodies. The product also incorporates a check valve cartridge, verified by test (suitable for backflow protection against Fluid Category 2) and a stainless steel strainer. Maximum inlet supply pressure 16.0 bar. Cold water use only.
Pressure relief valve (pre-set at between 2.5 & 8.0 bar depending on model), with a plastic body and EPDM shutter membrane. Maximum operating temperature 100°C
`MSL & MSV` ranges of pre-set pressure relief valves with brass bodies and EPDM seats with manually operated easing gear. Maximum working pressure 10 bar. Maximum operating temperature 100°C.
Range of pressure relief valves with DZR brass bodies incorporating EPDM diaphragms. The valves are pre-set at 6.0 bar (311560, 312469, 312461ITH & 311461 models), 10.0 bar (312020 CST model) and 7.0 bar (312471 model). Maximum operating temperature 99°C.
Pressure relief valve (pre-set at between 2.5 & 8.0 bar depending on model), with a brass body and EPDM shutter membrane. Maximum operating temperature 100°C.
Pre-set, angled pressure relief valves (set at 2.0, 2.5, 3.0, 3.5, 4.0, 5.0, 6.0, 7.0 & 8.0 bar) with DZR Brass bodies and EPDM diaphragm. The valves are fitted with a rotary type easing gear. Supplied with or without pressure gauge. Maximum operating temperature 100°C.
Range pressure relief valves incorporating DZR brass bodies and EPDM rubber washers. For pressures these are set at please consult the model section. The valves incorporate a manually operated rotational easing gear. Maximum operating temperature of 99°C.
Range pressure relief valves incorporating DZR brass bodies and EPDM rubber washers. For pressures these are set at please consult the model section. The valves incorporate a manually operated rotational easing gear. Maximum operating temperature of 99°C.
Range of pre-set pressure relief valves (available between 0.2-24 bar on each model) with bronze bodies, brass seat and PTFE washers. Models incorporate a manually operated easing gear. Maximum operating temperature 85°C.
Range of DZR brass expansion relief valves fitted within a manifold assembly. The valves are pre-set at 8.0 bar or 6.0 bar depending on model and incorporate and EPDM membrane, NBR ‘O’-rings. Product incorporates a check valve cartridge, verified by test (suitable for backflow protection against Fluid Category 2). Maximum working pressure 16.0 bar. Cold water use only.
Range of pre-set pressure relief valves incorporating DZR brass bodies and an EPDM diaphragm, (for pre-set pressures see model). The valve is fitted with hand operated rotating easing gear. Maximum working pressure is the same as the pre-set pressure (see model). Maximum operating temperature 85°C.
Range of pre-set pressure relief valves with gunmetal bodies, silicon diaphragms, and PTFE seat washers. Pre-set relief pressures: 0.3 bar to 10.5 bar. Maximum operating temperature 95°C.
Range of factory pre-set, pressure relief valves with gunmetal bodies, incorporating viton ‘O’-rings, seat seals and chrome vanadium steel springs. Maximum working pressure varies by model and spring: Fig 500L: White spring: 0.4 bar to 0.6 bar. Red spring: 1.0 bar to 1.3 bar for DN15 to DN25, 0.7 bar to 1.3 bar for DN32 to DN50 Yellow spring: 1.4 bar to 2.6 bar. Green spring: 2.7 bar to 4.0 bar. Fig 542L: White spring: 0.3 bar to 0.4 bar. Red spring: 1.0 bar for DN15 to DN25 and 0.5 bar to 1.0 bar for DN32 to DN50. Yellow spring: 1.1 bar to 2.1 bar. Green spring: 2.2 bar to 3.2 bar. Maximum operating temperature 95˚C.
Range of pressure relief valves with gunmetal bodies, silicon rubber diaphragm, chrome vanadium steel spring and a lever operated easing gear. Pre-set relief pressures: DN15-25 - 1.0 bar to 12.5 bar. DN32-65 - 0.4 bar to 12.5 bar. Maximum operating temperature 95˚C
Range of pre-set (at 3.0 bar) pressure relief valves incorporating DZR brass bodies and an EPDM diaphragm. The valve is fitted with hand operated rotating easing gear. Maximum operating temperature 85°C.
Range of pressure relief valves incorporating brass bodies and EPDM rubber washers. The valves incorporate a manually operated rotational easing gear. For maximum working pressure please refer to model. Maximum operating temperature 99°C.
Pre-set pressure relief valve (set @ 3.0 bar) incorporating a brass body, NBR ‘O’-ring and an EPDM diaphragm. The valve is fitted with a hand operated rotating easing gear. Maximum operating temperature 90°C.
Pre-set pressure relief valve incoporating DZR brass body and manual easing gear. Pre-set 3.0 bar. Maximum operating temperature 85°C.
Range of pressure relief valves incorporating brass bodies and EPDM rubber washers. The valves incorporate a manually operated rotational easing gear. For maximum working pressure please refer to model. Maximum operating temperature 99°C.
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