Modular heating circuit K34 DN25 3-WM valve+bypass pump Grundfos Alpha2 25-60

The modular heating circuit K34 is suitable for mixer-controlled low-temperature heating installations. It is fitted with Grundfos Alpha2 25-60. The connections of the heating circuit have an internal thread of 1". It also features large ball valve handles for easy handling and a clear indication of the closing position. The modular heating circuit is equipped with a function-optimised design insulation made of durable elastic EPP, insulating the fittings 100%. Moreover, the system provides a ventilation duct to cool the pumps. Free access to the pump head is ensured by simply removing the front cover. Additionally, the heating circuit provides a check valve (can be opened, 200 mm water column, spring-loaded) in the return pipe which prevents noise when using electronically-controlled pumps. The pump is also suitable for horizontal and overhead installation. Standard installation of the flow is on the right, but flow and return line can also be reversed on site. The mixing valve can be conversed without any problems. All water-carrying parts are made of brass. The full-metal thermometer can be pulled off, with immersion sleeve integrated in the ball valve. The modular heating circuit is fully assembled with flat gaskets. The pump can be isolated, so no draining is necessary during service work. 

Technical data:
- dimension: DN 25 -1"
- inlet (flat-sealing) G: 1 1/2" ET
- installation length: 345 mm
- recommended application range at Delta T = 10 K up to 1.940 l/h: up to 22.5 kW