WW0121270, Watts, 1/2 In Lead Free Pressure Relief Control Valve, Adjustable 20-200 psi

This 1/2 inch lead free pressure relief control valve is designed to open when diaphragm senses changes in upstream pressure. It is a direct acting, spring loaded, diaphragm type relief valve that is used as a control or self contained relief valve. The pressure set point is adjustable within the spring range, opening and closing within very close pressure limits. This valve features a lead free brass body, 1/2 NPT inlet and outlet connections, and a large diaphragm and seat area. The adjustable pressure range is 20 to 200 psi.