Range of brass bodied differential bypass valves incorporating a spring-loaded adjustment facility. Maximum working pressure 10.0 bar. Maximum operating temperature 100°C.
Range of automatic air venting valves with plastic bodies, EPDM seals and plastic floats. Maximum working pressure 6.0 bar. Maximum operating temperature 99°C.
Range of T-type thermostatic mixing valves with DZR brass bodies. Maximum working pressure 14.0 bar. Maximum operating temperature 100°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.
Range of T-type thermostatic blending valves with brass bodies and EPDM ‘O’-rings. Maximum working pressure 14.0 bar. Maximum operating temperature 90°C
Range of unvented monobloc groups consisting of an in-line pressure reducing valve (PRV) (adjustable between 2.7 and 3.3 bar or 3.2 and 3.8 bar - see model) and a pre-set expansion relief valve (SRV) (pre-set at either 4.5, 4.75, 5.0, 6.0 or 8.0 bar - see model) housed in a DZR brass body with an EPDM rubber diaphragm. The product incorporates a check valve cartridge, verified by test (suitable for backflow protection against Fluid Category 2). The expansion relief valve is fitted with a rotary type easing gear. Maximum inlet supply pressure 10.0 bar. Maximum operating temperature 85°C.
Range of balancing valves with DZR brass bodies and EPDM ‘O’-rings, incorporating a non-rising spindle headwork. Maximum working pressure 20.0 bar. Maximum operating temperature 85°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.
Unvented monobloc group consisting of an in-line pressure reducing valve adjustable between 2.7 & 3.3 bar, an approved check valve cartridge, verified by test (suitable for backflow protection against Fluid Category 2) A pre-set expansion relief valve set at 6.0 bar housed in a DZR brass body with an EPDM rubber diaphragm. The expansion valve is fitted with a rotary type easing gear. Maximum inlet supply pressure 10.0 bar. Cold water use only.
Range of T-type thermostatic mixing valves with chrome plated DZR brass bodies and EPDM `O`-rings incorporating a thermostatic cartridge controlling the temperature. Each inlet incorporates a stainless steel strainer and models 252714 & 252713 have approved check valve cartridge, however, the complete product has not been fully tested to demonstrate it provides backflow protection. Maximum working pressure 10.0 bar. Models 252714 & 252701 have a maximum operating temperature 99°C. Model 252713 has a maximum operating temperature of 85°C
In-line double check valve assembly consisting of two spring loaded resilient trim check valve cartridges housed within a DZR brass body with a test point between both check valves. Maximum working pressure 10.0 bar. Maximum operating temperature 99°C.
Expansion group consisting of a pressure relief valve (set at 6.0 bar), incorporates check valve cartridge, verified by test (suitable for backflow protection against Fluid Category 2) and spherical ball valve housed within a DZR brass body. Maximum working pressure 16 bar. Maximum operating temperature 85°C
Range of adjustable, in-line pressure reducing valves with DZR brass or plated brass bodies, incorporating EPDM diaphragm, ‘O’ rings and a stainless-steel strainer. Models can be supplied with or without gauge port and some models supplied with gauge port and gauge. Maximum inlet supply pressure 16.0 bar. Maximum outlet pressure 1.0 to 5.5 bar (except 533230H & 533430H which has an adjustable pressure range of 0.8 to 4.0 bar) Maximum operating temperature 80°C
Verifiable double check valve assembly consisting of two spring loaded resilient trim in-line check valve cartridges housed in a DZR brass body. The products incorporate two inspection ports between the cartridges. Maximum working pressure 10.0 bar. Maximum operating temperature 85°C
Range of pre-set, in-line pressure reducing valves incorporating DZR brass or bronze bodies, EPDM diaphragm & ‘O’-rings and a stainless-steel strainer. The valves are supplied factory pre-set at 3.0 bar on existing models or with an adjustable range between 0.5-6.0 bar for models added in June 2020. Maximum inlet supply pressure 25.0 bar. Maximum operating temperature 80°C.
Range of in-line, manually adjustable pressure reducing valves (DZR brass or DZR brass plated bodies) and EPDM rubber seat washers & ‘O’-rings and a stainless steel filter. Minimum and maximum regulated outlet pressure 1.0 – 6.0 bar. Maximum working pressure 16.0 bar. Maximum operating temperature 40°C.
Range of heat interface units providing heating and instantaneous hot water. The central heating and hot water is generated via plate heat exchangers. The central heating circuit contains a pressure relief valve (3.0 bar). Maximum working pressure primary circuit: 2.5. bar. Maximum working pressure district heating: 16.0 bar. Maximum working pressure secondary hot water circuit 10.0 bar. Maximum operating temperature 85°C.
Range of T-type thermostatic mixing valves with DZR brass bodies, EPDM ‘O’-rings. The product is supplied with a specific tool that allows a manual override of the valve for disinfection purposes. Maximum working pressure 14.0 Bar. Maximum operating temperature 90°C.
Range of in-line spherical valves (brushed chrome DZR brass body) with lever (250400) or butterfly (250300 & 29284) operating members, DZR brass ball (chromium plated brass) and PTFE seats and washers. Maximum working pressure 10.0 bar. Maximum operating temperature 100°C.
Range of in-line, manually adjustable pressure reducing valves with DZR brass bodies and EPDM rubber seat washers & ‘O’-rings. Outlet pressure range: 1.0 - 6.0 bar. Maximum working pressure 16.0 bar. Maximum operating temperature 80°C.
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