Heat Bloc K38, DN25 (1"), with 4-way mixer

DN 25 (1”), Kvs: 4.7

• For mixer-controlled heating in combination with a boiler temperature maintenance
• 4-way mixer: For a heating circuit, suitable for operation with a boiler circuit pump (allows circulation in the boiler circuit with closed flow).
When used on a distributor, the mixer return must be fitted with a shut-off valve to prevent reverse circulation!

• Connections DN25 (1”) Internal thread
Connections DN32 (1¼”):
- for heating circuit DN32 (1¼”) internal thread,
- for distributor DN32 flange with union nut DN50
• Pump can be shut off on both sides
• Suitable for installation on PAW module distribution boards
• Insulation according to EnEV, made of EPP
• Flow and return exchangeable
• Check valve (adjustable) in the return pipe, 200 mbar, suitable for all installation positions

Technical data:
• Max. operating pressure DN25/DN32: 8/6 bar
• Operating temperature: max. 110°C
• Seals: EPDM/NBR
• Centre distance: 125 mm
• Installation length DN25/DN32: 345/385 mm