We design and manufacture industry-leading hydronic products and solutions that give you control at every turn and help create energy-saving, cost-efficient HVAC installations.
Our unparalleled brand portfolio is built on more than 100 years of tradition and innovation. We provide a superb range of high-quality products and support services for every type of installation and customer.
From individual domestic installations to mammoth projects like the Burj Khalifa in Dubai – we can fulfil every customer’s and every sector’s needs.
Keen to understand the theory behind balancing HVAC systems for ultimate performance or searching for the latest industry insights and trends? Our Knowledge Hub is where you can find all you need to know.
Ensuring you have control at every turn is what we’re all about. We’ve developed a range of applications and software downloads to help you design, install and optimise every type of HVAC solution.
Download library We’ve created an extensive library of product-related technical documentation and a wide range of other useful information to help you get the most out of our globally-renowned products and solutions.
can be fitted either vertically or horizontally in the flow or return of a radiator
for various installation options
Max. working temperature: 120°C, with protection cap or actuator 100°C.Min. working temperature: -10°C.
Valve body: BrassO-rings: EPDM rubberValve disc: EPDM rubberReturn spring: Stainless steelValve insert: BrassThe complete thermostatic insert can be replaced using the fitting tool without draining the system.Spindle: Niro-steel spindle with double O-ring sealing. The outer O-ring can be replaced under pressure.
ABS, PA6.6GF30, brass, steel,Liquid-filled thermostat.
Valve body and fittings are nickel-plated.
IMI, country code, flow direction arrow, KEYMARK-Designation. II+ Designation.Black protection cap.
The thermostatic valve bodies meet the following requirements:– KEYMARK certified and tested to DIN EN 215, series GB.
G1/2 male thread with 15 mm compression fitting for copper or precision steel pipe.
Closed graduation cap and liquid-filled thermostat. High actuating force, minimum hysteresis, optimum closing time. Stable control response even with minor calculated p-band variations (<1 K). Frost protection.Thermostatic head D-U: Setting numbers 0–IIIII. Temperature range 0 °C to 28 °C.Thermostatic head Halo: Setting numbers I–IIIII. Temperature range 6 °C to 28 °C.
Radiator pack Calypso GB
The HEIMEIER TRV pack, consists of a Calypso TRV body, D-U or Halo head and lockshield. Designed for application in a two-pipe pumped heating system. The Bi-directional thermostatic radiator valve can be fitted either vertically or horizontally in the flow or return and either end of a radiator giving the installer total flexibility.
Connectivity as angle form or reversed form (see dimensions)
Kvs = m3/h at a pressure drop of 1 bar and fully open valve.
Kv [xp] max. 1 K / 2 K = m3/h at a pressure drop of 1 bar with thermostatic head.
Connectivity in angle or reversed position (see dimensions)
Setting numbers 0–IIIII. Temperature range 0 °C to 28 °C.
Setting numbers I–IIIII. Temperature range 6 °C to 28 °C.
complete with case, box spanner and replacement seals, for replacing thermostatic inserts without draining off the heating system (for DN 10 to DN 20).
for differential pressure measurement at thermostatic valve bodies with TA-SCOPE balancing instrument.
1) Over all length.
for thermostatic head D-U.
Other accessories, see catalogue leaflet "Accessories and spare parts for thermostatic radiator valves".
Other couplings, see catalogue leaflet “FPL”.
Please use the below link to browse and download IMI Hydronic Engineering BIM files for Revit. It requires a free registration.
for thermostatic radiator valves