Material of construction – Body made up of brass of IS:319 and method of manufacturing is forging. Threading Type - Inlet threading in BSPT and outlet threading in BSP. Flow adjustment screw – Body contains flow control screw made up of brass to regulate the output flow. Top cap with plastic washer – Top cap to protect flow control screw, cap is also made up brass. Washer provides a leak prof sealing. Pressure sustaining capacity – Ferrule withstands a pressure up to 16 bar.