Maric Valves
Benefits & why use a Maric Valve?
- Valuable protection for flow rate sensitive pumps, filters, pump glands, and water distribution systems.
- The valves boast automatic, maintenance free, and self cleaning operation.
- The valves useful life can be up to 20 years.
- They are compact and are available in the broadest range of connection types, sizes and material types in the world.
What the Maric Valve CAN do
The Maric flow control valve is designed to deliver a fixed, pre-set, constant (maximum) flow of water, irrespective of pressure differential across it, (within a given range).
This means constant flow rate, irrespective of fluctuating pressure upstream or downstream of the valve.
What the Maric Valve CANNOT do
The flow controller is not designed to control pressure.
The flow control valve has no external actuations and is not adjustable for flow rate.
Assumptions
We assume that the user of the Maric flow control valves is aware of the desired pre-set flow rate for the valve.
Quality Assurance - The Company
The Company has a recognized and regularly externally audited Quality Assurance System which ensures a consistent and high level of quality. Our quality assurance system is SAI Globals “Product Compliance Program”, PCP14.02 WaterMark level 1. This system is based on ISO9001.
WaterMark Quality Certified Quality Assurance - The Products
The Products must also comply with the specifications of the appropriate Australian Standard. The standard for Maric Flow Control valves is: Australian Technical Standard; ATS5200.037.1-2006-FLOW CONTROLLERS. This specification includes, but is not limited to: Design; AS3688, Materials; AS1567, AS2345, Potable water suitability AS4020, End connections; AS ISO 7.1, AS1722.2, AS4087 & AS2129, Hydrostatic pressure test & water-tightness; AS3718, Flow rate; AS1357.2, Marking & Product documentation.

How the conventional Maric Flow Control Valve works
- The flow control valves utilise a flexible rubber control ring, with an orifice diameter that responds instantly to fluctuations in water pressure.
- As pressure differential increases, the orifice diameter reduces to maintain the pre-set flow rate.
- Likewise, as pressure reduces, the orifice opens up to maintain the pre-set flow rate.
- These valves are particularly suitable for use on poor water quality, because the flow controlling element is a rubber material, and flexes under normal operation.
- This minimises the risk of blockage, and eliminates the build-up of scale.
