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Package Size: 7.7 x 4.6 x 3.4 inches
This Apollo Valve 10-600 series hot water relief valve protects against excessive water pressure due to failure of controls to regulate BTU input. It has a bronze body, a 150 pounds per square inch (psi) relief pressure, and a 1" female National Pipe Thread (NPT) inlet connection and 1" female NPT outlet. The valve's body and spring cage are bronze for resistance to corrosion. The seat is silicone for resistance to high temperatures and is elevated for draining water away from the seat area. The spring is steel for resistance to corrosion, and a fabric-reinforced, molded EPDM (ethylene propylene diene monomer) diaphragm isolates the spring from water at all times. The valve can be used in operating temperatures up to 250 degrees F. This relief valve is American Society of Mechanical Engineers (ASME) safety rated for Section IV heating boilers and is suitable for hot water heating boilers and hot water supply systems.
Relief valves remove excess pressure or vacuum from a system. The valve openings allow fluids or gases to escape to decrease pressure, and then close once the valve reaches the reseating pressure limit. They also relieve excess vacuum by opening to release a gas into the system and then closing after it reaches its low-pressure limit. Some relief valves have an adjustment mechanism to set the pressure where the valve opens, making it suitable for various applications. Relief valves are rated according to the volume of liquid or gas that can flow through them and the material that the valve is constructed from must be suitable for the fluid or gas, which may be corrosive or at an extreme temperature, in which it operates. Relief valves are used in a variety of applications, such as air compressors, petrochemical and chemical manufacturing, natural gas processing, and power generation.
Apollo Valves manufactures ball, mixing, and relief valves, actuators, water gauges, marine fittings, heating and plumbing products, and backflow prevention. The company, founded in 1928 and headquartered in Matthews, NC, meets international standard International Organization for Standardization (ISO)/IEC standard 17025:2005.
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