PROVIDES CLEAN RAINWATER FOR INDUSTRIAL AND COMMERCIAL APPLICATIONS -SUITABLE FOR ROOF AREAS UP TO 3,000m²

RWH filters can be used where rainwater from the roof is channelled through a horizontal underground pipe.

The RWH filters and diverts rainwater to a storage tank or cistern. Leaves and other large debris are washed through to a drain or soakaway.

Rainwater enters the inlet connection in the side of the RWH filter. The inlet is designed to swirl the water around the surface of the stainless steel filter below. The rainwater is drawn through the vertical mesh walls of the fine filter by adhesion, then collected and fed through the outlet to the storage tank.

Debris and particles too large for the filter (particles greater than 380 microns) are flushed through to the drain outlet by the action of water flowing down the surface of the filter. More than 90% of the rainwater entering the WFF is filtered and collected by this principle.

There are no restrictions or obstructions on which debris can collect. The full crosssection of the rainwater drainage system is maintained throughout the filter so that excess rainwater is led directly to the storm drains or soakaway. This is especially important in hail storms and torrential rainfall. Even in such extreme cases much of the filtered water is transferred to the storage tank.

Flexible System Design

This comprehensive range of specialist items has been developed specifically for Rainwater Harvesting Systems. Because our range consists of separate components, it has exceptional flexibility.

Our products are suitable for almost any system design, whether you¡¯re planning a system for a small house, school or large industrial or commercial premises.

• Suitable for roof areas up to 500m²
• Full cross-section of the drainage pipe is maintained right through the filter
• More than 90% efficiency at peak capacity of over 16 litres/sec.
• Low maintenance
• Stainless steel mesh 0.38mm
• Inlet and outlet rotate through 360°
• Corrosion and frost proof
• Tough polyethylene construction -withstands vehicle weights up to 60 tonnes GVW
• Extension tubes can be added to suit invert level
• Stainless steel base plate for stability & easy installation
• Connects to standard drainage pipe sizes
•  

• Drained area: 3000 sq.m
• Filter capacity: 16 litres/second
• Housing: Polypropylene
• Seals: Rubber
• Filter insert & mesh: Stainless-steel 1.4301
• Filter mesh size: 0.38 mm
• Rainwater inlet: DN 300*
• Tank outlet: DN 200*
• Drain outlet: DN 300*
• Lifting handle: Stainless-steel 1.4301
• Weight: 95 kg
• Cover load: Carries vehicles of up (tested to 60t, to DIN1072/SLW60)
• Acid-resistant: Yes
• Groundwater neutral: Yes

* DN = Nominal internal diameter of pipe.

An operating efficiency of 90% is maintained up to 16 litres/sec. – reduced efficiency at higher flows.