Watts LFU5B-LP-Z3 3/4 3/4 In Lead Free Water Pressure Reducing Valve, Npt Female Union X Npt Female, Low Range 10-35 psi

Both ends are 3/4 inch NPT female threaded, with the inlet being a female union connection. The union side lets you break the valve out for service or strainer cleaning without cutting pipe or spinning the body. On copper you will need a female adapter or a threaded male adapter soldered or pressed onto the line to land on those NPT threads.

Yes. The LFU5B-LP-Z3 is a lead free model with a body cast in lead free copper silicon alloy, so it is suited to potable water service. Trim is bronze, the seat disc is EPDM, and the strainer is stainless steel. It is also flagged Buy American Act compliant with USA origin, which matters on government and institutional jobs.

A stainless steel strainer is built in, so you do not need a separate wye strainer ahead of it, though you do need enough clearance to pull the strainer for cleaning. No gauge is supplied with this model. If you want to see the reduced setting while you adjust it, plan on a separate gauge tapped downstream.

Maximum working pressure is 300 psi (20.7 bar), and it is rated for water from 33 F up to 180 F. That covers domestic cold water and tempered lines. It is not a steam or high temperature hot water valve.

This is a standard style direct acting reducing valve with an EPDM disc and a built in thermal expansion bypass. Under no flow it seats to hold the reduced setting, and the bypass relieves pressure built downstream back to the supply rather than letting it climb against a closed system. The corrosion resistant coating on the body helps the working parts stay free over long dead-head periods.