Low-loss headers maintain the correct flow of water through the boiler and allow a constant temperature supply of water to reach multiple heating circuits downstream of the low-loss header connection. An example of this would be heating circuits that require different temperature and flow-rate requirements (e.g. underfloor heating and radiator circuits). During operation, cooler return water from the heating circuits is mixed with water from the boiler in the low-loss header. A temperature sensor is used to monitor the temperature of the water supplied by the boiler. It is highly recommended that a suitable dirt filter is fitted in the return pipework between the low-loss header and the heating circuits as a precaution to prevent system dirt from entering the boiler.

Features:

• Consistent flow rate maintained within the boiler heating circuit - Optimal efficiency obtained for all flow rate requirements.
• Low-loss header with flow rates up to 8m3/h available
• Ensures system water flow rate requirements can be met with minimal pressure losses.
• EPP insulation supplied as standard Minimises system heat loss and maintains plant room temperatures.

Technical data:

• Brand - Vaillant
• Product Type - Horizontal Low Loss Header Kit WH40-2
• Width - 114mm
• Length - 500mm
• Pressure - 1.4mBar
• kW at 20K - 70kW
• kW at 11k - 40kW
• Connections BSP Female - 1¼"
• Flow Rates m³/hr - 3.5
• Flow Rates - 3500ltr/hr