Building services valves

Herz metering stations are available in sizes from 0.5 to 2 inches, including a 0.5 inch low-flow version. The metering stations are manufactured in DZR brass and supplied with pre-fitted test points. The valves are pressure rated to PN16. Metering stations are used in the flow and partnered with a double regulating valve in the return to give the

Herz pressure reducing valves are WRAS approved and made to BS EN 1567. The valves are suitable for water heating and cooling applications. Pressure reducing valves are made from either DZR brass or cast gunmetal. Technical data: Maximum fluid temperature: 80°C. Maximum inlet pressure: 25 bar. Adjustable pressure range: 1.5-6 bar. Pressure

The ACO Quatrix® with access chamber is an in-line, Type 3 automated anti-flooding device designed for domestic grey water or black (faecal wastewater) water connections. It conforms to the requirements of BS EN 13564. The ACO Quatrix® is installed into solid floor constructions with connections to 110mm or 160mm Ø drain pipe. It has a height

Herz double check valves are used for heating applications and are WRAS approved. They have a brass body, elastomer seals, acetyl copolymer check cartridges and a stainless steel spring. Dimensions: Widths: 25, 30, 38, 46, 52 and 65mm. Lengths: 81, 92, 100, 122, 135 and 174mm. Specification: Test pressure: 16 bar. Working pressures: 0.1-10 bar

The TS-E thermostatic valve is suitable for one- or two-pipe heating systems, and is available in straight, angled and reverse angled versions. Standard models feature a threaded socket, are nickel plated and have a white screw cap. Universal models feature a special socket for threaded pipe and a compression union. An O-ring is used as a spindle

The ACO Quatrix® is an in-line, Type 3 automated anti-flooding device designed for domestic grey water or black (faecal wastewater) water connections. It conforms to the requirements of BS EN 13564. The ACO Quatrix® is designed for installation in site-built access chambers or wall-mounted applications. It can be connected to 110mm or 160mm

The Herz drain tap has a bronze body, a brass stem, bonnet and disc holder, and an EPDM seat and seals. It is PN10 pressure rated. The drain tap is available in either 55 or 65mm sizes. Respective weights are 0.22 and 0.36kg. PN 10 drain tap is made in accordance with BS 2879

COMBIFLOW 6-way Pressure Independent Control Valve provides complete pressure independent balancing and control for 4-pipe heating and cooling systems. The system combines Frese 6-way valve technology with its PICV technology to provide a compact, energy saving system suitable for a wide flow range. This solution allow engineers to reduce some of

Compression lockshield gate valves are WRAS approved and pressure rated to PN16. The valves are made in brass and are available in sizes from 15-28mm. They are made to BS 5154 with compression ends to BS EN 1254-2

The TBV-C terminal balancing valve for on/off control is designed for use in terminal units in heating and cooling systems. The valve is made from AMETAL®, a dezincification-resistant alloy that minimises the risk of leakage. The valve has a shut-off function to ensure straightforward maintenance, and self-sealing measuring points for quick and

The CirCon thermostatic valve in stainless steel AISI 316 is used for domestic hot water systems with circulation. A by-pass outside the thermal part of the valve allows the temperature to be raised to between 70°C and 80°C, making it suitable for hot water installations with bacterial problems such as legionella. It has a stepless setting between 37°C and 65°C with an accuracy of +/-2°C

The Herz thermal balancing control valve control valve is a thermostatic valve for hot water systems with a circulation pump. The control valve does not require an external power source and is PN10 pressure rated. The temperature in the circulation pipe is controlled. In cases where several pipes are used, distribution of the hot water is ensured

The compact STAP self-acting differential pressure controller is suitable for use in heating and cooling systems. The valve is made from AMETAL®, a dezincification-resistant alloy that reduces the risk of leakage. It keeps the differential pressure over the load constant which delivers accurate and stable control. This ensures minimal noise from

The TA 400 is a flexible and easy-to-install ball valve for heating, cooling and tap water systems. Pressure die casted AMETAL® cuts risk of leakage and ensures a long product lifetime

Herz bronze swing check valves are pressure rated to PN25 and are made in accordance with BS EN 12328. A range of sizes is available. The valves have a pressure/temperature rating of 25 bar at -10 to 100°C; and 10.5 bar at 186°C. End connections are to BS EN 10266 (ISO7 Rc). Test pressure - 37.5 bar (shell), 27.5 bar (seat

The TA-THERM thermostatic valve is used for automatic balancing in domestic hot water circulating systems, which are used in most large buildings to reduce the delay time for water to run hot at the tap. The TA-THERM valve is fitted in place of a conventional balancing valve and is made from AMETAL®, a dezincification-resistant alloy that

The Frese OPTIMA Compact DN50-DN300 pressure independent balancing and control valve (PIBCV) is used in heating and cooling systems with air handling units, heat exchangers or mixing circuits. Used in a wide variety of market sectors, including commercial office developments, hotels, educational establishments, sports complexes and residential

The TS-98-V thermostatic valve has continuous pre-setting and readout, and is suitable for water heating systems in which hydraulic balancing via return valves is not possible or desired. The universal models are equipped with special sockets that offer the option of connecting either a threaded pipe or a calibrated soft steel or copper pipe, the

Herz bronze gate valves are WRAS approved and pressure rated to PN20. Features include: Available in various dimensions. Made to BS 5154. Pressure/temperature rating of 9 bar at 180°C; and 26 bar at -10 to 100°C. BS21 taper thread (ISO 7). Test pressures - 30 bar (shell), 22 bar (seat

Balancing valve with grooved ends – DN 65-300 A grooved end, ductile iron balancing valve that delivers accurate hydronic performance in an impressive range of applications. STAG is ideal for use mainly on the secondary side in heating and cooling systems

Balancing valve – PN 16 and PN 25 – DN 20-400 A flanged, cast iron (STAF) and ductile iron (STAF-SG) balancing valve that delivers accurate hydronic performance in an impressive range of applications. The STAF/STAF-SG is ideal for use mainly on the secondary side in heating and cooling systems

DZR differential pressure control valves are suitable for heating and cooling systems, to ensure constant differential pressure within the control range. Straight and angled versions are available. The valve works without auxiliary energy. The required nominal differential pressure can be continuously adjusted from 50 to 300 mbar. The adjusted set

The Herz automatic air vent is used in heating applications and other processes where air needs to be removed from media in systems. It is PN10 pressure rated. The air vent is vertically fixed and features a stop valve for ease of maintenance and replacement. The connection between the automatic air vent and stop valve is sealed with an O-ring, so

The Frese Sigma dynamic balancing valves is used for water control in cooling and heating applications. It can be used instead of traditional double regulating valves and can be installed in both variable flow systems and constant flow systems. Max. differential pressure 400kPa. Range of flowrates, from 40 to 10,350l/h. Made from brass (DN15-DN32) or ductile iron (DN40-DN50