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1. Eastman 60158 Vacuum Relief Valve, 3/4" MIP
Description
The Eastman Vacuum Relief Valve is built with high-impact brass, providing strength and durability. It has a 3/4-inch male iron pipe connection and features a protective cap. This vacuum valve is used for automatic venting of closed systems to the atmosphere when a vacuum is created. The relief valve permits air to enter and prevent vacuum conditions that could siphon the water, resulting in the collapse of a tank, water heater, or equipment burn out. This product is lead-free compliant for use in potable water applications. CSA certified. Tested and rated to ANSI z21. 22.
2. Cash Acme 22398-0000LF Vr-801 Drill Vent 3/4-Inch Vacuum Relief Valve with Dust Cover, Lead Free
Feature
- DESIGNED TO: protect hot water supply systems and pressure vessels against negative pressure
- APPLICATION: suited for many domestic and commercial systems
- PREVENTS: internal vacuum conditions that could result in burned out heaters and/or collapsed storage tanks – especially copper
- INSTALLATION: installed on the coldwater supply line, the VR-801 closes tightly under pressure and opens at a 1-inch mercury vacuum. Atmosphere admitted to the system breaks the vacuum, preventing collapse of the storage tank. It is recommended that the VR-801 be installed in am upright position
Description
Product Description
The Cash Acme VR-801 22398-0000LF 3/4-inch Drilled Vent Vacuum Relief Valve with Dust Cover is designed to protect hot water supply systems and pressure vessels against negative pressure. It is especially well suited for many domestic and commercial systems. It works by preventing internal vacuum conditions that could result in burned out heaters and/or collapsed storage tanks. Installed on the cold-water supply line, the Cash Acme VR-801 closes tightly under pressure and opens at a 1-inch mercury vacuum. Atmosphere admitted to the system breaks the vacuum, preventing collapse of the storage tank.
From the Manufacturer
Prevents internal vacuum conditions that could collapse storage tanks – especially copper. Bronze body with a male inlet, integral body seat and silicone seat disc.
3. Control Devices VR Series Brass Vacuum Relief Valve, 0-30" Hg Vacuum Range, 1/4" Male NPT
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 corrosion and can be used in operating 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 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 flow rate of 2 cubic feet per minute (CFM). This vacuum relief valve is suitable for use in vacuum applications such as to prevent 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 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.
Control Devices manufactures valves and other flow control devices. The company, founded in 1963, is headquartered in Fenton, MO.
4. SolarPoolRepair Vacuum Relief Valve for Solar Pool Heaters (2")
Description
This vacuum relief valve (vacuum breaker) is designed specifically for solar pool heater applications.
This VRV is typically installed using a rubber coupler hose and hose clamps.
For solar pool panels with 2″ I.D. header manifolds and 2.375″ (2-3/8″) I.D. rubber hose couplers.
This is a ball spring (5#) type check valve that is typically installed at the highest point in a solar pool heating system; by allowing air to enter the pool solar panels, it aids in gravity drainage of solar pool collectors and piping.
Internal components feature a Viton o-ring, glass-reinforced ball, and 5# stainless steel spring.
5. WATTS BRASS & TUBULAR LFN36-M1 1/2 Water Relief Valve, 1/2-Inch
Description
1/2″, lead free, water service vacuum relief valve, allows air to enter a closed system to automatically relieve vacuum conditions which could siphon the water from the system & burn out a water heater or collapse a tank, CSA, ANSI & Massachusetts state code listings. The product is manufactured in china. Easy installation and easy handling.
6. Rheem SP623335 Water Heater Vacuum Relief Valve
Description
Rheem SP623335 Water Heater Vacuum Relief Valve
7. Control Devices VR Series Brass Vacuum Relief Valve, 0-30" Hg Vacuum Range, 3/8" Male NPT
Description
This Control Devices VR38-100 vacuum relief valve has a brass body, an adjustable relief pressure, and a 3/8″ male NPT threaded inlet connection. The valve’s brass body, stainless steel spring, nylon poppet, and Nitrile seal resist corrosion and can be used in operating 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 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 flow rate of 5 cubic feet per minute (CFM). This vacuum relief valve is suitable for use in vacuum applications such as to prevent 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 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.
Control Devices manufactures valves and other flow control devices. The company, founded in 1963, is headquartered in Fenton, MO.
8. Control Devices VR Series Brass Vacuum Relief Valve, 0-30" Hg Vacuum Range, 3/4" Male NPT
Description
This Control Devices VR75-100 vacuum relief valve has a brass body, an adjustable relief pressure, and a 3/4″ male NPT threaded inlet connection. The valve’s brass body, stainless steel spring, nylon poppet, and Nitrile seal resist corrosion and can be used in operating 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 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 flow rate of 10 cubic feet per minute (CFM). This vacuum relief valve is suitable for use in vacuum applications such as to prevent 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 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.
Control Devices manufactures valves and other flow control devices. The company, founded in 1963, is headquartered in Fenton, MO.
9. Water Source Llc Rv50-nl 1/2-Inch Pressure Relief Valve No Lead 75 PSI
Description
1/2 inch pressure relief valve, preset at 75 psi, protects tank systems from excess pressure build up, lead free. The product is manufactured in china. Easy installation and easy handling.
10. Hayward CCX1000V XStream Cartridge Filter Manual Air Relief Valve
Description
Hayward CCX1000V XStream Cartridge Filter Manual Air Relief Valve
Conclusion
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