Materials: Body- Grey UPVC, Special grade to suit potable water requirements to AS4020. Sealing O’Rings - Nitrile, potable water approved to AS4020 or EPDM or Viton if applicable
Flange Specification: Suits standard table “D” flanges to AS2129 and AS4087 Class 14 Alternative specs are available - Refer to Valve Selection Guide for additional info. Standard Wafers are not full flange type i.e. flange bolts locate wafer concentrically and remain visible when viewing assembly. Wafers are fitted with an o’ring in each face for sealing against smooth flat faced flanges. Gaskets will however be required where grooved, raised or rough cast face flanges are used. PVC and Poly Stub Flanges note; Due to smaller I.D. of these flanges/pipes, optional spacers are often required to prevent restriction
Max Pressure Differential: 1000 kPa or limited by Control Rubber type Max Hydrostatic Pressure: 3000 kPa
Max Temperature: 50C
Compatible Control Rubbers: Standard Precision P (Non Standard LP, EP, K, V, HF)
Maric Flow Control Australia | Control Valves
Maric Flow Control is an Australian owned manufacturing engineering firm situated in Adelaide, South Australia.
Our Maric control valves maintain a constant pre-set flow rate of water, over a wide pressure range.
Established in 1963, and celebrating 50 years of manufacturing in 2013 – we have experienced rapid growth in recent years with up to 40% of our production distributed overseas.
For flow rate sensitive pumps, filters, pump glands and water distribution systems, the installation of these Maric control valves can offer many benefits and valuable protection.
The technology is based on a precision moulded rubber control ring in the valves body, with an orifice diameter that varies in response to the pressure differential applied to it. The greater the pressure, the smaller the orifice, and vice versa, thereby maintaining a constant flow.