Pressure Reducing Valves Clause Samples

The Pressure Reducing Valves clause establishes requirements for the installation and maintenance of devices that control and lower water pressure within a plumbing system. Typically, this clause specifies the types of valves to be used, their placement within the system, and the acceptable pressure ranges to ensure safe and efficient operation. By mandating these standards, the clause helps prevent damage to pipes and fixtures caused by excessive pressure, thereby promoting system longevity and user safety.
Pressure Reducing Valves. Most of the plumbing codes require water pressure reducing valves on domestic systems where the water main's pressure exceeds 55 m head to avoid high pressures causing rupture of pipes & fittings and injure the people using them. Water entering the valve from mains is constricted within the valve body and directed through the inner chamber controlled by an adjustable spring loaded piston/ diaphragm and disc. Even if the supply water pressure fluctuates, the pressure reducing valve ensures a constant flow of water at a functional pressure, as long as the supply pressure does not drop below the valve's pre-set pressure. The Pressure Reducing Valve should be as per BS EN 1567:2000 or any equivalent standards applicable for drinking water supply. Pressure-reducing valves (PRVs) shall be of the pressure compensated piston or diaphragm controlled, designed to reduce a variable inlet pressure to a pre-determined constant outlet pressure at varying flows. Valves shall be drop tight under no flow conditions. The body of the PRV shall be made with bronze or brass or any equivalent material with integral strainer of stainless steel 316. All necessary repairs to the valve should be possible without removing the valve from the service connection pipe. The pressure setting shall be capable of being adjusted on site by the use of an adjusted on site by the use of an adjustment screw to alter the compression of the spring. The opening and closing speeds shall also be field adjustable by adjusting the flow regulation screw. The valves shall be capable of being fully opened or fully closed by respective opening and closing of upstream and downstream ground cocks. These pressure reducing valves shall regulate downstream pressures to set values. Nominal pressures will be Inlet Pressure (0.25-1.6 MPa)/ Outlet Pressure (0.1-0.6 MPa) rating. Body ends shall be equipped with suitable and standard threads or connection arrangement which is capable of developing leak proof joint.
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Pressure Reducing Valves. The Builder shall install individual pressure reducing valves in each dwelling to the satisfaction of the Town.
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Pressure Reducing Valves. Where required for equipment, pressure- reducing valves shall be automatic-regulating type complete with pilot lines.
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Pressure Reducing Valves. Lots 1, 2, 3, 4, 10, 11, 12, 21, 22, 23
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Pressure Reducing Valves. On high pressure sample lines a pressure reducing valve for sample lines with inlet pressures exceeding 350 kPa to reduce and regulate the downstream pressure to an adjustable value between 100 and 300 kPa.
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Pressure Reducing Valves 
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