The valve shuts off instantaneously against reverse flow (from "OUT" port to "IN" port) and opens at low cracking pressure in the forward direction.

• Note the direction of flow before installation and connect piping accordingly.
• Flush piping's for dirt, dust, rust and other foreign particles.
• Install in clean atmosphere.
• Nipples of taper threads (R) to be used with Teflon tape. Ensure Teflon tape does not enter the unit during tightening. Straight threads (G) to be used with sealing washer.