Hayward Threaded Pressure Reducing Pressure Reducing Control Valve, 1 1/2 in Pipe Size - PBV2150TPE1 Metal Toilet Partitions or provide 6mm (1/4") toggle

or provide 6mm (1/4") toggle bolts or expansion bolts

The cap is made of brightly polished

Bradley 269-1923 Flow Control- 2

Vulcan-Hart

Hayward Threaded Pressure Reducing Pressure Reducing Control Valve, 1 1/2 in Pipe Size - PBV2150TPE1 Metal Toilet Partitions or provide 6mm (1/4") toggleIdeal for chemical feed systems, this HAYWARD pressure reducing control valve can apply back pressure to a metering pump to help prevent siphoning and eliminate variable dosage rates due to a fluctuating downstream pressure. When the valves preset pressure is exceeded (model has an adjustment screw that you can adjust in the field), the diaphragm moves up and chemical flows through the valve to the injection point.