Control Devices VR Series Brass Vacuum Relief Valve, 0-30" Hg Vacuum Range, 1/4" Male NPT from Control Devices

Price: $8.86
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Product Description

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Manufacturer Description

This Control Devices VR25-100 vacuum relief valve has a brass body, an adjustable relief pressure, and a 1/4" male NPT threaded inlet connection. The valve's brass body, stainless-steel spring, nylon poppet, and Nitrile seal resist rust and can be utilized in running temperatures up to 250 degrees F. This proportional-type relief valve opens at a rate relative to the increase in vacuum pressure, and can be adjusted to open in between 0 and 30" Hg (inches of mercury) using the knurled adjustment screw and locking jam nut. The valve is factory preset to open at 20 pounds per square inch (psi) and has a circulation rate of 2 cubic feet per minute (CFM). This vacuum relief valve is suitable for use in vacuum applications such as to avoid a tank from collapsing while it is being emptied or after a sterilization-in-place (SIP) procedure.Relief valves remove excess pressure or vacuum from a system. The valve openings allow fluids or gases to leave to decrease pressure, and then close once the valve reaches the reseating pressure limitation. They also alleviate excess vacuum by opening to launch a gas into the system and then closing after it reaches its low-pressure limitation. Some relief valves have a change 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 built from must appropriate for the fluid or gas, which may be destructive or at a severe temperature, in which it operates. Relief valves are utilized in a variety of applications, such as air compressors, petrochemical and chemical production, gas processing, and power generation.Control Devices makes valves and other flow control gadgets. The company, established in 1963, is headquartered in Fenton, MO.

Product Features

Relief pressure adjustable from 0 to 30" Hg 1/4" male NPT threaded inlet connection Brass construction and stainless steel spring for corrosion resistance Proportional relief valve for variable opening rate Preset to 20 psi with 2 cfm maximum flow rate

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