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InstallationInstallation consists of simply screwing the HVB onto the hose bibb. The HVB should be at least 6 inches above the ground so there is no risk of it being in a puddle of water. Note that some HVBs are designed to be easy to install but difficult to remove! Others use a simple set screw to prevent loosening and are easily removed.

They feature a durable bronze body and a check valve and air opening port in one assembly. Maximum Working Pressure: 150psi (10.3 bar). 3/4" 765 Pressure Vacuum ...

Product DescriptionThe Cash Acme F-30 is a compact and economical ASME Safety Relief Valve for use on hot water space heating boilers, water supply heaters, and storage tanks. The Cash Acme F-30 Relief Valve is designed for use on hot...

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Hydronic & Steam Equipment is a private company. The company currently specializes in the Construction area. Its headquarters is located at Indianapolis, ...

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FAILURE TO COMPLY WITH PROPER INSTALLATION. AND MAINTENANCE INSTRUCTIONS COULD. CONTRIBUTE TO THE VALVE FAILURE, RESULTING IN. INJURY AND/OR DEATH.

ES-WD-WD-SERIES-USA 1713. © 2017 Watts. Job Name ... WD-50. 50. 100. 4"(102). 16"(406). 5-1/2"(140). 32"(813). 22"(559). 21-1/2"(546)

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Honeywell VU54S2016/B 1" Three-Way Fan Coil Sweat Valve. The VU54 high pressure zone valves are used to control the flow of hot or chilled water in commercial HVAC equipment such as fan coil units, terminal reheat coils and convectors. IMPORTANT...

You probably use a garden hose connected to your home water supply to irrigate your lawn and garden, wash your car, bathe your pet and perhaps apply pesticides. In all of these uses, the potential exists for backflow of contaminated water into your home and, from there, into the municipal water supply or your well. Using a simple, inexpensive vacuum breaker (Figure 1) on your hose bibbs can help prevent this hazard.

What is Backflow?Backflow is backward movement of water from your garden hose into the water supply. Backflow can occur if the pressure in the home (or municipal) water system suddenly drops. This can occur if there is a sudden demand on water in the system because of a leak, fire trucks pumping from hydrants or a system pump failure. Backflow can also occur if you leave a hose connected to a hose bibb and the hose bibb turned on while a valve at the end of the hose is closed. In this case, the hose will be fully pressurized. Even a small drop in system pressure will then cause water to backflow. Even if system pressure does not drop, a hose lying in the sun will heat up and cause the pressure in the hose to increase to a level greater than system pressure and thus cause backflow.

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Shop our selection of backflow preventer repair kits, parts, and rebuild kits. These parts are compatible with Deringer 20/30/40/50 ...

Shop for Watts Backflow Preventer Repair Kit RK957 (1) at King Soopers. Find quality hardware products to add to your Shopping List or order online for ...

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Product DescriptionCash Acme NCLX Combination Temperature and Pressure Relief Valves are designed for the protection of water heaters and storage tanks.Cash Acme NCLX Valves are designed to meetANSI Z21.22/CSA 4.4 and ASME Boiler Code SectionIVin most configurations (see Certifications for...

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Honeywell VU54S2016/B 3/4" Three-Way Fan Coil Sweat Valve. The VU54 high pressure zone valves are used to control the flow of hot or chilled water in commercial HVAC equipment such as fan coil units, terminal reheat coils and convectors. IMPORTANT...

Mueller. 1" Mueller Steam Specialty WYE Strainer - Lot of 2 Class 250 Cast Iron NPT End. MSRP: Was: Price: Now: $45.87. 1.5" Mueller Steam Specialty WYE ...

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Water in a garden hose can be drawn back into your water supply in many ways. Hose vacuum breakers are a simple and inexpensive way to reduce the risk of contaminating your home water supply (or the municipal water supply). They are an important step in protecting your family’s water.

Backflow Prevention with a Vacuum BreakerA hose vacuum breaker (HVB) is a simple device that screws onto the hose threads on your hose bibb. It, in turn, has male hose threads onto which you can attach your garden hose. Use of your garden hose with an HVB is no different than without one. The HVB allows water to flow out normally but opens and vents to the atmosphere if a pressure reversal occurs. The cost is typically only $5-$10. HVBs are required by many plumbing codes.

Product DescriptionThis 1/2 inch bronze combination fill valve and backflow preventer is for use in commercial and residential hydronic heating systems to provide make-up water to the boiler and prevent backflow when supply pressure falls below system pressure. It consists...

2024320 — As the term "potable" means suitable for drinking, a potable expansion vessel is used for drinking water applications. Regulations state that ...

Here's an example illustrating how to use the formula: For a 2-inch diameter pipe with a flow velocity of 1 m/s, the flow rate can be determined as follows: The ...

MaintenanceVery little maintenance is needed. Your HVBs should be inspected occasionally to be sure they are working and not stuck. To check the operation of an HVB, hook a hose to the HVB and install a valve or nozzle that can be closed on the end of the hose. Close the valve on the end of the hose and open the hose bibb. Then, close the hose bibb while the hose is pressurized. In a few seconds, you should see a small spray of water from the HVB as the hose pressure is released. If the HVB fails this test or if it leaks in normal operation, it may need to be cleaned or replaced. Hard water or contaminants in the water can cause the mechanism to stick or bind. It may be possible to move the components enough manually to free them up; if not, the HVB will have to be replaced. Because they can be difficult to remove, this may entail replacing the hose bibb also.