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Underfloor Heating Manifolds

Warmafloor Standard Modular Manifolds are used where the water supply temperature to the manifold is provided at the correct temperature for the underfloor system.
Warmafloor Blending Manifolds are for use where the LPHW supply to the manifold is at a higher temperature than required for the underfloor system.

Composite Manifolds.
Our compsite manifolds utilise the most appropriate materials for the specific function they are intended. Therefore the body of the barrels is manufactured from Glass Fibre Reinforced Black Polyamide(GRBP). The material is not adversely affected by accidental contact with linseed oil sealing compounds and will be unaffected by soft, hard or aggressive water or inhibitors.

The circuit flow rate adjusters and indicators are manufactured in ABS known for its wide use in plumbing materials and operating temperature range.
Gauges are industry standard giving reliable and accurate readings.
Sealing rings are manufactured from EPDM rubber, again this is used for long term secure durability.
Industry standard brassware is used for compression connections for both 16mm and 20mm Polybutylene Pipe, Drain Cocks, AAV, Blending Valve assembly and Pump connections.
High grade stainless steel ball valves are used to isolate/shut-off the manifold.

Standard Modular Manifolds

Special stainless steel brackets are used to secure the manifold and offset the barrels to allow the flow pipe work to be routed behind and adjacent to the return connection.
Warmafloor use a Grundfoss alpha standard 25/60 pump with a 3 speed setting with a EPC “B” rating.
Warmafloor also provide the composite pump mixing manifold with a Grundfoss alpha 2 inverter drive 15/50 pump with an EPC “A” rating. This provides superior energy / system performance if required.
The blending manifold set utilises a full bypass valve which is unique in that it can be used in both heating and cooling mode. The advantage of this is that it can be used with heat pumps and future/alternative energy sources.
The standard manifold also provides this capability.

Both types of manifold have 1” single side flow and return primary connections which can be handed to satisfy specific requirements. This also enables primary pipe work to be routed horizontally or vertically to one point of connection.
The ports on the barrels are threaded and lock in position in both vertical planes allowing for a 180 degree rotation. This allows Warmafloor to serve circuits both above and below from one manifold.

The sealed actuator units also allow safe operation when ports are serving circuits above the manifold.
All configurations of the manifold have been tested rigorously by the British Board of Agreement (BBA CERT.10-4738) this has resulted in the BBA certifying the manifold to a minimum life expectancy of 25 years under normal operating parameters, typically this is maximum temperature 70°C and minimum 4°C. The maximum working pressure is 4 bar and maximum test pressure is 8 bar. Maximum primary flow rate for a standard composite manifold is 60 litres per minute whilst the pump mixing manifold is 30 litres per minute.
The manifold is a modular manifold made up with single or 3 port pieces for maximum flexibility. The 12 port manifold is the maximum size. Sizes/dimensions are given in the attached table.
The manifold incorporates a simple lift balance cap and memory ring with facilitates easy flow rate calibration.