Flow control

By-Pass Valves (BPVs) are designed to be fitted in all heating systems where Thermostatic Radiator Valves (TRVs) are installed so as to maintain a minimum flow rate in the system. When all TRVs are fully open the BPV will remain closed and the full boiler output will circulate through the system. As the TRVs close the BPV will start to open thus maintaining optimum flow rate through the boiler. Installing a BPV will minimise the noise and vibration often experienced when flow through the boiler diminishes. The BPV should be fitted between the flow and return side of every system. As the TRVs close, the by-pass valve opens to deliver supply water to the return line.


 

By-Pass Valves

By-Pass Valves (BPVs) are designed to be fitted in all heating systems where Thermostatic Radiator Valves (TRVs) are installed so as to maintain a minimum flow rate in the system. When all TRVs are fully open the BPV will remain closed and the full boiler output will circulate through the system. As the TRVs close the BPV will start to open thus maintaining optimum flow rate through the boiler. Installing a BPV will minimise the noise and vibration often experienced when flow through the boiler diminishes. The BPV should be fitted between the flow and return side of every system. As the TRVs close, the by-pass valve opens to deliver supply water to the return line.


BPV22

BPV22

Allows for constant water circulation through the boiler when thermostatic radiator valves close.

  • Prevents local boiling

  • Reduces pump "burnout"

  • Reduces system and boiler noise

  • Improves system efficiency


 


 

Motorised Valves


 

CZV - Motorised 2 Port Zone Valve

CZV - Motorised 2 Port Zone Valve

2 Port Valve for installation in a zoned domestic central heating system

  • De-mountable actuator - power head

  • Replaceable motor

  • Wedge type actuator

  • Spring return operation

  • Motor Open

  • Manual lever for flushing and filling the system

  • Industry standard wiring

  • Standard Motor Voltage: 230V 50Hz

  • Options: Available in 22mm (CZV222) & 28mm (CZV228) pipe sizes

CMV - Motorised 3 Port Mid Position Valve

CMV - Motorised 3 Port Mid Position Valve

3 Port Valve for installation to 22mm pipework in a Y Plan domestic heating system

  • De-Mountable actuator

  • Replaceable motor

  • Wedge type actuator

  • Spring return operation

  • Manual lever for filling and flushing the system

  • Industry Standard Wiring

  • Standard Motor Voltage: 230V 50Hz

  • Options: Available in 22mm (CMV322) or 28mm (CMV328) pipe sizes

De-mountable Actuator

De-mountable Actuator

De-mountable actuator to fit Siemens CZV/CMV Domestic Valves

  • Replaceable motor

  • Wedge type actuator

  • Spring return operation

  • Manual lever for filling and flushing the system

  • Industry Standard Wiring

  • Standard Motor Voltage: 230V 50Hz

  • Options: DVA2/5 - Actuator for CZV222

  • DVA2/6 - Actuator for CZV228

  • DVA3 - Actuator for CMV322 & CMV328