2702 HOYT AVE 2018-01-02 MF Import

i. ,,, • • March 28, 2013 NIKJNG' DRY VALVE TECHNIC . AL DATA 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: techsvcs@vikingcorp.com b System pressure when the dry valve operated c Elapsed time from opening of the test valve to development of full flow of water from the system test connection d. Any other mformation required by the Authority Having Jurisdiction 6. Verity that alarms operate properly 7. Allow water to flow from the system test connection until it appears clear and clean. 8. When test is complete, close the water supply main control valve. 9 Perform steps 1 through 20 of section 4-6 PLACING DRY VALVE IN SERVICE 10 Verity that the water supply main control valve is open, and all other valves are in their normal operating position If equipped with an external antillood device. the %` anti -flood isolation valve must be OPEN and secured. B. Partial Flow Trip Test 1 Notify the Authority Having Jurisdiction and those in the area affected by the test NOTE: VIKING CONVENTIONAL TRIM PROVIDES A CONNECTION FOR INSTALLATION OF A NON -INTERRUPTIBLE PRES- SURE SWITCH. ALARMS AND ELECTRIC PANELS CONTROLLED BY AN ALARM PRESSURE SWITCH INSTALLED IN THE "ELECTRIC ALARM PANEL CONNECTION" CANNOT BE INTERRUPTED (SEE DRY VALVE TRIM CHART). 2. Record water supply pressure and system pneumatic pressure 3. Fully open the main drain (located on the base of the dry valve) to flusn away any accumulation of foreign material. 4. CLOSE the water supply main control valve as far as possible while maintaining full flow from the main drag.. CLOSE the main drain 5 Open the priming level test valve to simulate operation of the system 6 Note (for records) water supply pressure and system pneumatic pressure when the dry valve operates 7. CLOSE the water supply main control valve and OPEN the main drain IMMEDIATELY when test is complete. 8. Perform steps 1 through 20 of paragraph 4.8 PLACING DRY VALVE IN SERVICE 9 Verity that the water supply main control valve is open, all other valves are in their normal operating position If equipped with an external anti -flood device. the %" anti -flood isolation valve must be OPEN and secured III. MAINTENANCE (See Figure 3) WARNING: PRIOR TO SERVICING INTERNAL OPERATING PARTS OF THE DRY VALVE, TAKE THE FOLLOWING PRECAU- TIONS. 1 Close the water supply main control valve. placing the system out of service. 2 Open the main drain located in the base of the dry valve. 3 Close the air (or nitrogen) supply to the dry system piping 4. Relieve all pressure from the dry system piping If the system has operated, open all auxiliary drains and the system test valve to allow the system to dram completely 5 Use dry valve reset bar/wrench part number 02977BM to loosen and remove hand -hole cover boits (2 1) and remove hand - hole cover (24). CAUTION: CLAPPER ARM ASSEMBLY (8) AND CLAPPER ASSEMBLY (5) IS SPRING LOADED TO OPEN. NEVER PLACE HANDS INSIDE THE DRY VALVE IF THE CLAPPER ASSEMBLY IS LATCHED CLOSED. 6 Release latched (set) clapper assembly for service a Insert the re -setting tool through the hole in hook assembly (15), across the cast fulcrum on top of clapper arm assembly (8) until the re -setting tool contacts the stopping boss on top of clapper arm assembly 18) 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). The clapper arm assembly (8) and clapper assembly (5) will forcefully open, impact against latch (2), and be trapped in the open position 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. Recommended practice. When performing maintenance inside the dry valve with the clapper in the open position, cover the opening to prevent tools or parts from dropping onto the seat or into the waterway. 7 To Remove Clapper Rubbe- (19). a. Use a 9/16" wrench to remove hex -head screw (17) and rubber retainer (18) b Remove the clapper rubber (19) for inspection. if the clapper rubber shows signs of wear, such as cracking, cuts. or excessively deep grooves where the rubber contacts the air or water seat, replace the rubber 8 To Re -install Clapper Rubber (19)