1/2” - 4” • Bronze / Cast Iron Body These are the primary choice for reducing pressure on Water, Air, and other liquid and gas applications. The soft-seated elastomeric Viton disc has an operating temperature up to 300 ºF and provides excellent shut-off characteristics. The balanced seat design eliminates internal forces extending the capability range of both pressure and capacity.

The type you need will vary based on a number of things. Such as if the irrigation system is on a residential or commercial property. Talk to your local irrigation professional to help decide which you should choose.

What are Temperature Regulating Valves used for? Temperature regulators can be used to control temperature in various processes and systems. Typical configurations consist of a temperature probe (“bulb”) connected by a length of capillary tubing to a bellows in the valve or pilot actuator. When the temperature bulb is heated, the liquid inside the probe expands the bellows and closes off the valve or pilot. The opening and closing of the valve controls the flow of the fluid (typically steam or water) which maintains system or process temperature.

This single lever washing machine water shutoff valve controls both hot and cold water simultaneously. It consists of bronze body. 1/2 in. sweat copper ell ...

The LFMMV-M1 uses a double throttling design to control both the hot and cold water supply to the mixed outlet. The superior flow characteristics of this valve ...

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1/2” - 2” • Ductile Iron or Stainless Steel Body Simplest and most economical choice for Pressure Reducing applications for a variety of fluids including Steam, Water, Air, and other liquids and gases. These direct operated regulators have limited capacity compared to the HD-Series pilot operated regulators.

Your irrigation system is the key to keeping a healthy landscape year-round. But they do require care, especially during installation. A backflow preventer is one of the most important components of any irrigation system.

Regulators are simple, cost-effective valves used for: • Reducing Pressure (PRV) • Controlling Temperature • Controlling Back Pressure

Even if Back flow Preventer are not required by law in your area, they are highly recommended. Preventing chemicals and even foreign particles from entering the supply line keeps your water system healthy and free from blockages.

PBP Back-Pressure Pilot The PBP Back-Pressure Pilots are used with HD Regulators to maintain upstream pressures in steam systems. When the upstream pressure reaches the pilot set point, the regulator opens. The HD Regulator with a PBP Back-Pressure Pilot is commonly used to supply steam to low-pressure mains. The PBP Back-Pressure Pilot maintains a constant back-pressure on the inlet side of the regulator. Should not be used in place of a safety relief valve.

1/2” - 6” • Ductile Iron Body Used for pressure reduction or temperature control applications depending on pilot selection. Commonly used for reducing steam pressure to a specific downstream set pressure, other pilots are also available for controlling temperature, back pressure, and other applications.

When shopping for a backflow preventer. So it is important to understand which you need. There are a few different types of backflow preventers, including:

Regulators can also be used to precisely control the flow of steam to accurately heat other liquids such as water flowing in a Heat Exchanger or contained in a Tank or Vat to extremely accurate temperatures. Regulators can also be used to accurately control the flow of water or glycol to cool down a process to a precise value. When regulators are used for any type of temperature control they are referred to as Temperature Regulators Valves or just Temperature Regulators.

The most common application for regulating valves is for reducing the downstream pressure of Steam, Water, as well as other liquids and gases that are flowing thru a pipe or system. When regulators are used for pressure reduction applications they are often referred to as Pressure Regulating Valves or Pressure Reducing Valves or simply PRV’s.

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SharkBite NCLX-5LX temperature & pressure relief valve (T&P) provides automatic temperature & pressure protection for water heaters & storage tanks.

So the issue occurs when the water pressure in the system is too high compared to the water supply. When this happens. The water looks to go where there is lower pressure – in this case, back to the water supply.

If backflow occurs in your house. This can mean you are showering, brushing your teeth, or doing the dishes with contaminated water containing pesticides and fertilizer. Obviously, it is best to avoid this however possible.

Backflow preventers are relatively simple tools when it comes to how they function. Their job is to prevent the flow of contaminants from the system to the supply line. And even if the pressure from the supply line drops dramatically. This protects the water supply from contamination.

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Regulating Valves can also be used to relieve over pressure conditions in Liquid systems or to maintain the “Back Pressure” in steam systems. When regulating valves are used in these types of applications they are referred to as Relief or back pressure Valves. Back pressures regulating valves used in steam applications must not to be confused with Safety Relief Valves.

1/2” - 4” • Bronze / Cast Iron Body For reducing pressure on Steam & Air applications. An external pressure sensing connection is required. The lack of small pilot orifices make the 455 Series less susceptible to dirt and scale. Balanced seat and disc design allows these valves to be used in applications with low inlet pressure down to 5 psig.

Certain areas also have regulations about which backflow preventer a system has to have. Backflow preventers must also be tested regularly.

This application allows for sizing and making calculations for pipes and conduits carrying water or air, respectively for hydraulic or aeraulic plants.

Unlike control valves, regulators are self-powered, which means they do not require any outside source of power such as air pressure or electric actuators to operate.

Steam, liquids, and other gases are typically transported through piping systems at relatively higher pressure than ultimately required and therefore need to be reduced to a lower pressure at the final point of use. The purpose of the Pressure Regulating Valve (PRV) is to reduce the pressure of steam, liquid, or gas to a lower pressure appropriate for its final application. Direct operated regulators are typically the most economical and can be a suitable choice particularly in the low to medium flow range. Pilot Operated Regulators, such as the HD-Series will control downstream pressure more accuratly over a wider range of flows.

If you are in doubt, contact your local water purveyor and ask for a list of approved backflow preventer devices for your zone.

c Installation Diagram (Fig . 2. MIXED OUTLET. A. B. PIPEWORK. PRESSURE LIMITING VALVE (IF REQUIRED). ISOLATING VALVE. C. COLD WATER TEST POINT. E. LINE ...

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Because of the chance for contamination. Many areas now require backflow preventers to be installed on every irrigation system.

The cause of the backflow Preventer is simply the way water behaves. Water wants to go from an area of high pressure to an area of lower pressure. And this is exactly what it does.

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If you are uncertain if your irrigation system has a Back flow Preventer, call your local professional to have the system inspected. In northern New Jersey, Quench Irrigation can handle all your irrigation needs and keep your system running smooth for years to come.

Back-Pressure and Relief Valves Relief Valves (Back Pressure Valves) are used to maintain a specific back pressure or to protect systems from an over-pressure condition.

The main issue with backflow has to do with contamination. Most sprinkler systems are set up along potable municipal water supply lines.

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In most areas, the irrigation system uses the same water supply as the house or main building. Backflow occurs when water moves in the wrong direction. From the irrigation system and back into the water supply.

How they specifically prevent this backflow can vary based on the type of preventer. Though the function stays the same.

The water from the irrigation system may be contaminated with fertilizer, dirt, germs, and pesticides. Allowing water to flow back into the supply line contaminates the water. And may make it unsafe to use or consume.

1/2” - 4” • Ductile Iron Body The 403 are pilot-operated, piston-actuated, pressure regulators primarily used for reducing pressure in STEAM systems. Available with an optional internal sensing line which simplifies installation. Piston Operated regulators are more compact in size when compared to typical diaphragm actuated regulators.