2702 HOYT AVE 2018-01-02 MF Import

March 28, 2013 NKJWTECHNICAL DRY VALVE I �. MODEL F-1 The Viking Corporation, 210 N Industrial Park Drive, Hastings MI 49058 Telephone: 269.945-9501 Technical Services: 877.384.5464 Fax: 269.818-1680 Email: lechsvcs@vikingcorp.com ate Viking E-1 Accelerator Trim Chart provided with the Accelerator Trim Package and the Viking Engineenng and Design Data book a When a Viking accelerator is installed on the Model F-1 Dry Valve, the dry system air supply must be connected as shown on the Model E-1 Accelerator Trim Chart h The Viking external anti -flood device is required when a Viking Model E-1 Accelerator is installed on a dry valve accord- ing to the Model E-1 Accelerator Trim Chart Hydrostatic Test: CAUTION: THE DRY VALVE CLAPPER MUST BE LATCHED OPEN DURING PERFORMANCE OF THE HYDROSTATIC TEST (SEE FIG. 2-A) DO NOT perform, a 200 PSI (13 8 bar) hydrostatic system lest with the dry valve clapper in the closed (set) position (see Fig. 2-C) Never exceed 60 PSI (4 1 bar) air pressure in the system piping with the dry valve clapper closed. DO NOT expose the Viking accelerator to the hydrostatic test For warnings and considerations regarding hydrostatic testing of the Viking accelerator and other system components, refer to Technical Data for the equipment used B. Placing the Valve in Service (Refer to Figure 2) When the dry pipe system is ready to be placed in service, verify that all equipment is adequately heated and protected to prevent freezing and physical damage 1. Verify that the water supply main control valve supplying the dry valve is closed ? Open the main drain valve (located on the inlet of the dry valve) 3 Drain all water from the dry pipe system. If the system has operated. or if water has entered the system, open all auxiliary drams and the system test valve. Allow enough time to completely dram the system. Perform steps 4 through 1C to set the dry valve and/or inspect the internal operating parts of the dry valve. 4 Verify that the dry pipe system is not pressurized. 5 Use the dry valve reset bar/wrench, part number 029776M, to loosen and remove hand -hole cover bolts (21). Remove hand -hole cover (24). CAUTION: CLAPPER ARM ASSEMBLY (8) AND CLAPPER ASSEMBLY (5) ARE SPRING LOADED TO OPEN. NEVER PLACE HANDS INSIDE THE DRY VALVE IF THE CLAPPER ASSEMBLY IS LATCHED CLOSED. To release a latched clapper assembly for service a Insert the re -setting tool through the hole -in -hook assembly (15), across the fulcrum cast on top of clapper arm assembly (8) until the re -setting tool contacts the stopping boss on top of clapper arm assembly (8) (see Figure 3) b Apply a downward force on the end (outside the valve) of the re -setting tool. Hook assembly (15) will slide toward the hand -hole and off clapper arm assembly (8) Clapper arm assembly (8) and clapper assembly (5) will forcefully open, impact against the latch (2), and latch in the open position NOTE: INSPECTION AND CLEANING PROCEDURE STEP 6 BELOW IS CONSIDERED PART OF THE ANNUAL TRIP TEST. 6 Inspect and clean the internal parts of the valve Give special consideration to the water seat (16), au seat (20) and clapper rubber (19) Wipe away all contaminants, dirt, and mineral deposits DO NOT use solvents or abrasives Operate all parts to test freedom of movement Renew or replace damaged or worn parts as required CAUTION: NEVER APPLY ANY LUBRICANT TO SEATS, GASKETS, OR ANY INTERNAL OPERATING PARTS OF THE DRY VALVE. PETROLEUM BASED GREASE OR OIL WILL DAMAGE RUBBER COMPONENTS AND MAY PREVENT PROPER OP- ERATION OF THE DRY VALVE. 7 To set the dry valve clapper (refer to Figures 2 and 3) a. Raise the latch (2) to release spring -loaded clapper arm assembly (8) from the latched upon position. b Move the clapper arm assembly (8) down toward the horizontal position (see Figure 2-8) c While holding spring loaded clapper arm assembly (8) down, insert the re -setting tool through the hole -in -hook assembS. (15). across the fulcrum cast on top of clapper arm assembly (8) until the re -setting tool contacts the storoiny 7rss as shown in Figure 2-C d Apply a sharp upward force at the end of the re -setting tool Hook assembly (15) will slide forward on the re-sehing bar and latch the clapper closed with a positive setting action (see Figure 2-C). 8. Priming water is not required and may not be desirable where clean, good-qual-ty fresh water is not avatl6ble If priming water is desired, fill the dry valve with water to the bottom of the hand -hole. a Verify that the intermediate chamber of the dry valve is free of water No water should Flow from the drip check when the plunger is pushed. 9. Visually inspect hand -hole cover gasket (25). Verify that it is in good condition 10. Re -install hand -hole cover (24). gasket (25). and hand -hole cover bolts (21) Tighten the bolts using the dry valve reset