The Watts LF223-HP 1/2 is a 1/2" lead-free pressure reducing valve with NPT connections. It reduces inlet pressure of up to 300 psi to an adjustable 50-145 psi downstream. It features a buna-n seat. Rated to 300 psi and 33°F to 180°F. This model is certified lead-free for potable-water installations.
This 1/2 inch high capacity lead free water pressure reducing valve is used in high pressure applications and is commonly installed at the meter in residential, commercial and industrial buildings. It is designed to control the water pressure flowing to all the appliances and outlets within the building and provides an inexpensive means of supplying lower, more functional water pressure to outlets and appliances. It features a lead free cast copper silicon alloy body construction, NPT threaded female inlet and outlet connections, high temperature resisting enlarged diaphragm for hot or cold temperatures, a sealed spring cage and seat orifice for high capacity performance. This valve can be used for accessible outdoor waterworks or pit installations. The high pressure reduced range is 50 to 145 psi (3.4 to 10.0 bar).
Features
- NPT threaded female inlet by NPT threaded female outlet
- Lead free cast copper silicon alloy body construction
- High pressure range 50 to 145 psi (3.4 to 10.0 bar)
- Enlarged diaphragm, spring cage and seat orifice for high capacity performance
- Listed by IAPMO and NSF 61 Commercial Hot
- Disc holder removable for replacement of disc without dismantling the valve, no special tools are required
- Sensitive spring and large diaphragm for accurate pressure control
- High temperature resisting diaphragm for hot or cold water
- Sealed spring cage
Common Questions
- Does it have a built-in bypass for thermal expansion, or do I still need an expansion tank?
- No - LF223-HP 1/2 does not include a thermal-expansion bypass. Once this valve is installed the system downstream of it is closed, so a thermal expansion tank (and, where required, a relief valve) must be installed to absorb expansion from a water heater. If you want the bypass built in, choose the -B version of this model.
- What pressure is it set to out of the box?
- The adjustable reduced-pressure range of LF223-HP 1/2 is 50 to 145 psi. Verify the outlet setting with a gauge after installation and adjust to your target pressure.
- Does it include a strainer?
- No - LF223-HP 1/2 does not have an integral strainer. On dirty or older supply lines, install a separate inline strainer upstream to keep debris off the seat.
- Does it come with a gauge?
- No - LF223-HP 1/2 has no gauge and no gauge tapping. Set the outlet pressure using a gauge elsewhere on the downstream piping. The -GG version of this model ships with a gauge tapping and a 160 psi gauge.
Specifications
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Type: Pressure Regulator
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Size: 1/2"
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Inlet Size: 1/2"
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Outlet Size: 1/2"
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Connection: NPT
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Seat / Seal Material: Buna-N
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Max Pressure (psi): 300
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Shutoff: None
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Pack Quantity: 6
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Country of Origin: United States
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Warranty: 1 Year Limited
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MPN: LF223-HP 1/2
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Temperature: 33°F to 180°F
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Certifications: ASSE-1003, ANSI-A112.26, NSF-61, IAPMO
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Lead-Free: Yes
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Adjustable Range - Min (psi): 50
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Adjustable Range - Max (psi): 145
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Thermal Expansion Bypass: No
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Integral Strainer: No
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Gauge: None
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Union Configuration: None
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Capacity Class: High Capacity
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Regulated Media: Water
