This flow is out the drain port and should be returned directly to the tank. B. (1) X-Series Type. Pressure Reducing Valves. Condensate passing through a steam pressure-reducing valve always negatively affects Pressure at the outlet is limited to the sum of the equivalent forces of springs 2 and 5. Fluid passes from the inlet to the outlet with minimal resistance in the rated capacity of the valve. The DGMR1 sequence valve should be the farthest valve from the directional valve. Installed directly after the water meter in homes, commercial buildings, and manufacturing plants, a water pressure reducing valve automatically reduces the pressure from the water supply main to a lower, more sensible pressure. WATER PRESSURE SETTING FOR A PRESSURE-REDUCING VALVE OR WATER FEEDER ON A HOT WATER HEATING SYSTEM. © 2021 Hydraulic Valve. This valve serves the function of the relief valve and vacuum valve. For example, in a system, a branch-circuit pressure is limited to 300 psi, but a main circuit must operate at 800 psi. In normal operation, passage C never closes completely. Normally the pressure reducing valve is pre-set at the factory to feed water to a boiler when boiler pressure drops below 12 psi . Looking for the nearest location to purchase Watts products and accessories. Find the pressure reducing valve or pressure regulator control for the building. The position of the adjusting screw sets the spring load on the poppet, which determines the setting of the valve. Water pressure reducing valves control and protect plumbing systems by reducing the downstream pressure. A pressure reducing valve is a normally open valve that senses the outlet pressure going to an actuator. 2 Slide the cover provided over the flow valve and clamp the valve in a vise. Figure 5-5 shows the internal construction of an X-series pressure reducing valve. Pressure Reducing Valves are designed to reduce incoming water or steam pressure to a safer constant predetermined downstream level. The valve simply uses spring pressure against a diaphragm to open the valve. They decrease the psi of water entering buildings from municipal water mains to avoid ruptured pipes and damaged fixtures in commercial, industrial, or institutional facilities. Many municipalities today not only charge homeowners and businesses high rates for water consumption, but also for the disposal of wastewater. Bronze Water Pressure Reducing Valve The 3/4 in 70XLDU Pressure Reducing Valve The 3/4 in 70XLDU Pressure Reducing Valve comes with double union FNPT connection. In a pressure reducing valve (diagram A), adjusting the spring’s compression obtains the maximum branch circuit pressure. An integral check valve allows reverse free flow from outlet to inlet port even at pressures above the valve setting. If the pressure is excessively high, install a pressure-reducing valve. Manufactures valves for a variety of plumbing and industrial uses many sold under the company's Apollo brand. the pressure reducing valve, in accordance with current legislation. Using threaded pipe and fittings, attach a pressure gauge to each side of the pressure-reducing valve. These valves limit pressure on a branch circuit to a lesser amount than required in a main circuit. Valve is typically used to automatically reduce pressure for the downstream distribution network and sustain a minimum pressure in the high pressure main regardless of distribution demand. Here's how water pressure reducing valves can help: View our product line guide for more on controlling water pressure in residential, commercial, and OEM applications. Schematic Diagram Item Description 1 100-01 Hytrol Main Valve 2 X44A Strainer & Orifice 3 CRD Pressure Reducing … An XC-series pressure-reducing valve limits pressure at the outlet in the same way the X-series does when flow is from its inlet port to its outlet port. 1. Direct-acting. Depending on the type of valve, the downstream pressure is established by a pressure adjustment setting on the valve or by an external sensor. When these pressures are equal, the spool is hydraulically balanced. This spring holds a pre-set tension on the valve seat installed with a pressure equalizing mechanism for precise water pressure control. Fluid pressure at the outlet port is present on both ends of the spool. Ferguson is the #1 US plumbing supply company and a top distributor of HVAC parts, waterworks supplies, and MRO products. Just like breathing air in and out. Back flow would close the valve and pressure would increase. The only effective force on the spool is the downward thrust of the spring, which positions the spool and tends to maintain passage C at its maximum size. Liquid from the main circuit enters the valve at the inlet port C, flows past the valve spool, and enters the branch circuit through the outlet port D. Pressure at the outlet port acts through the passage E to the bottom of spool. To control pressure even from a location that is physically distant from the pressure reducing valve For compact steam-heating equipment For steam transport lines, heaters, etc. The cover is supplied so the valve is not damaged. The position of the spool determines the size of passage C. When pressure at the valve inlet (diagram A) does not exceed the pressure setting, the valve is completely open. If you need to adjust the pressure of your boiler's pressure reducer ("water feeder") see. The spring-loaded pressure-reducing valve (Figure 7-15) is commonly used in pneumatic systems. 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