Pressure regulators must always be installed downstream from all shut-off valves in the proper direction. Each model has a directional arrow on the side that shows the direction of the flow. This arrow should point downstream, toward the sprinklers and emitters.
A water pressure regulator, if you have one, is usually located where the main water line comes into the house and after the main shut off valve. This way if you need to work on or change the water pressure regulator you can simply shut off the water main to do so.
This holds the pressure 10 to 15 psi (0.69 to 1.03 bar) above the design pressure and helps protects downstream components from a high pressure surge. Remember: a pressure regulator MUST be installed downstream (after) from all shut-off valves.
When inlet pressure is above the maximum rated working pressure of the Backflow Device, the Model -PR Pressure Reducing Control Valve should be installed upstream of the Backflow Device. This provides maximum protection of the Backflow Device.
Positioning the pressure regulator after the solenoid valve … is correct. roryaronson: the pressure regulator we've chosen is a spring-based design, which is not designed to handle sustained pressure load.
If the water pressure level coming into your home from the city exceeds 80 psi, you need a water pressure regulator. Reducing the system pressure 10 to 20 psi can save thousands of gallons a year in the typical home.
The standard and recommended mounting orientation is horizontal with the spring bonnet pointing upwards. Valves up to 2"/50mm may be installed in vertical pipework, however there is a possibility that dirt particles may enter the valve, causing friction at the moving parts.
Normal psi for a home pipe system is between 30 and 80 psi. While you don't want the psi to be too low, it violates code to be above 80. Instead, you should aim for a psi that's between 60 and 70.
Water Pressure Readings
Normal water pressure is generally between 40 and 60 PSI. Most homeowners prefer something right in the middle around 50 PSI. Once you measure the water pressure in your house, you can adjust it to a setting that is ideal for all family members and household uses.
Without a PRV, a home's pipes are subject to constant strain that deteriorate them over time. This can cause cracks to form in the pipes and lead to water damage in the home. In homes with high water pressure, regulators are essential in keeping the pipes and appliances running smoothly.
Residential water pressure tends to range between 45 and 80 psi (pounds per square inch). Anything below 40 psi is considered low and anything below 30 psi is considered too low; the minimum pressure required by most codes is 20 psi. Pressures above 80 psi are too high.
Depending on the angle modification required for the gas intake manifold, the regulator position can be either horizontal or vertical, but never upside down. Preferably, place the regulator on the intake manifold and the gas shut off valve on the gas supply pipe.
The PRV has a flow direction arrow cast onto the body – the valve must be installed with the flow in the direction of the arrow. The valve can be installed horizontally or vertically but must not be installed upside down.
Pressure Reducing Valves are a quick way of reducing and stabilising the downstream water mains pressure flow in a system. Valves can be installed both horizontally and vertically. The Pressure of the flow can be pre-set when installing the valve.
The pressure regulator is designed to regulate pressure. This does not always mean it can increase pressure. The regulator can only increase pressure if additional pressure is available.
If you will be using multiple zones, you will need a pressure regulator for each zone as they operate as their own individual systems. If your system will use more than 420 GPH, you will need to use a higher flow-rated pressure regulator.
How long will a Water Pressure Reducing Valve last? The life expectancy of a water pressure regulator is most commonly in the range of 10 to 15 years. However, you may see a regulator malfunction at three years and one still properly functioning at 20 years old if regularly maintained.
No matter what kind of water heater you have, the pressure valve will be located either on the top or side of the unit. Most likely, it will be near the electric supply or hot water output tube. Don't confuse it with the drain valve, which is used to empty the water out of the heater.
While pressure reducing valves are expected to be "one-way", water can indeed flow "backwards" from the downstream side of the system if that pressure exceeds the incoming pressure on the inlet side of the valve.
If the vent is perpendicular to the flow of the propane through the regulators then it's a horizontal mount but if it's parallel (like the one you mentioned), the orientation is considered vertical.
Regulators with Backflow Function (Reverse Flow Regulators)
An integral bypass check valve permits air to flow backward through the regulator when inlet pressure is removed.
One foot of water equals 0.433 psi. It would take a column of water 2.31 feet to create one pound of pressure. To create enough pressure to operate a standard spray head at it's optimal pressure of 30 psi you would have to have a water tower 69.3 feet tall.
Normal water pressure range
In general, residential water pressure ranges between 45-80 psi (pounds per square inch). If your water pressure is under 40 psi, it's considered low. A psi between 20-30 is considered very low, and under the minimum water pressure required by most building codes.
If the pressure is 35-60psi, that is enough pressure and flow to allow most plumbing fixtures to work properly, unless there is a restriction within the system obstructing the flow from what it should be.
Adding a Water Pressure Regulator Protects Your Appliances
High water pressure can prematurely wear out appliances like your dishwasher, washing machine, water softener, and water heater.