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In-Line Check Valve Installation (For Red Jacket, Tokheim, or Bennett Pumps) Installing the System AWARNING Product spillage could create serious environmental and safety hazards. Fire, explosion, or ground contamination could occur. 1. If the in-line PLLD Check Valve is being installed at an existing site, drain the product pipeline using approved containers and procedures that will prevent product spillage. 2. Dispose of drained fuel properly. Used an approved suitable container for moving fuel. Dispose of fuel soaked materials properly and not into trash barrels that may be used by customers. b. Place a catch pan or container to collect draining product under the union (� where the piping will be disconnected from the submersible pump.Loosen the union and drain the pipeline using procedures that will prevent product spillage. c. Disconnect the pipeline at the union closest to the pump and remove existing plumbing between the product pipeline and submersible pump. 3. You must observe the following guidelines when installing the in-line PLLD check valve: a. The in-line PLLD check valve is threaded.for a 2-inch NPT fitting at both ends. b. The in-line PLLD check valve must be installed directly into the pump discharge port. c. The piston on the in-line PLLD check valve must open in the direction of fuel flow(to the dispenser). d. Use an UL approved sealant suitable for the fluid involved. Do not use excessive amounts of sealant on the check valve threads or mating fittings. Excessive sealant could cause check valve failure. 4. Install a 2-inch pipe tee directly onto the in-line PLLD check valve[Figure 6 on page 21] using sealant.The tee provides a port for the Line Leak Sensor and the product piping. It can be installed in any orientation,provided the Line Leak Sensor is perpendicular to(not in-line with)the pump outlet. 20 576013-902, Revision G