Instructions-Parts High Flow Severe Duty Shutoff Check Valve 313343A For recirculation valves, shutoff check valves, or outlet shutoff check valves on XM plural-component sprayers. Part No. 255278 Complete high flow severe duty shutoff check valve assembly 7250 psi (50 MPa, 500 bar) Maximum Working Pressure 160°F (71°C) Maximum Fluid Temperature Important Safety Instructions Read all warnings and instructions in this manual and manuals 312359 and 313289. Save these instructions.
Related Manuals Contents Related Manuals . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Repair . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Warnings Warnings The following warnings are for the setup, use, grounding, maintenance, and repair of this equipment. The exclamation point symbol alerts you to a general warning and the hazard symbol refers to procedure-specific risk. Refer back to these warnings. Additional, product-specific warnings may be found throughout the body of this manual where applicable. WARNING WARNING FIRE AND EXPLOSION HAZARD Flammable fumes, such as solvent and paint fumes, in work area can ignite or explode.
Overview Overview The high flow severe duty shutoff check valve is a valve that acts as a spring loaded one-way check valve when the valve is in the open position. When the handle is turned to the closed position, the ball is held against the seat closing flow in either direction. The valve can be manifold mounted with four screws and an o-ring face seal on the inlet, or it can be plumbed in place with 1/2 in. npt (f) threads on the inlet and two outlets.
Overview 313343A 5
Setup Setup Reference parts illustration on page 7. 1. Mount the valve in place with two outlet ports pointed in the desired direction using o-ring (14) and four screws (11). 2. Plug the un-used outlet port with plug (15). Use thread tape or sealant on the npt threads. 3. Use handle (12) to close the valve stem (8) clockwise. Position handle (12) to point in the direction you want to show as “closed”. 4. Secure handle (12) in place on stem (8) with crown nut (11). Repair 7.
Parts Parts 255278, Complete Shutoff Check Valve Shown 14 11 3 2 4 2 3 3 6 7 8 9 3 2 15 1 3 11 1 Torque to 125 ft-lbs. (170 N•m) 2 Apply blue threadlock. 3 Apply lithium grease. 4 Torque to 16-20 ft-lbs. (22-27 N•m) Ref. 1 2*◆ 3* 4* 5* 6*◆ 7* 8* 9*◆ 10* 11 Part 15J594 15K692 15A968 116166 15M530 15M529 15M189 15K347 121138 15K199 121295 12 13 14 15 15R381 117623 121139 100361 * 2 4 5 4 10 12 1 13 Description Qty.
Troubleshooting Troubleshooting Problem Handle is hard to turn under pressure. Cause Solution Cartridge (10) is not tightened completely into housing (1). Torque cartridge (10) to 125 ft-lbs. (170 N•m). Repair Kit Accessories 256239, Shutoff Check Valve Repair Kit Handles See parts illustration on page 7. Part 247789 15R380 247788 Ref 2 6 9 110† 111† Part 15K692 15M529 121138 15T630 113500 † Not shown.
Technical Data Technical Data Maximum Fluid Working Pressure . . . . . . . . . . . . . . . . . . Maximum Fluid Temperature . . . . . . . . . . . . . . . . . . . . . . Check Valve Housing Fluid Ports . . . . . . . . . . . . . . . . . . . Wetted Parts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7250 psi (50 MPa, 500 bar) 160°F (71°C) 1/2 in. npt carbide ball, carbide seat, sst stem, nickel plated steel, PTFE o-rings, UHMWPE u-cup, acetal end cup seal.
Graco Standard Warranty Graco warrants all equipment referenced in this document which is manufactured by Graco and bearing its name to be free from defects in material and workmanship on the date of sale to the original purchaser for use. With the exception of any special, extended, or limited warranty published by Graco, Graco will, for a period of twelve months from the date of sale, repair or replace any part of the equipment determined by Graco to be defective.
