Did you find this document useful? 7. are not shown in this preview. Automatically seals under pressure. Model D-2 Drip Check is normally used with Viking Model C Dry Valves with iron trim. Reliable Fire Sprinkler Control Valves. Reliable Model EX Low Pressure Dry Pipe Valve System. The following inspections should be performed on the. Model VXR Dry Valve Loose Trim The Viking Model VXR Dry Pipe Valve is an externally resettable, latching, differential valve used to separate the water supply from the dry pipe sprinkler system. The following Accelerator tests should be performed. Certification scheme: Scheme 1a (ISO/IEC 17067:2013). If water is found in the Accelerator, due to. Carefully reinstall these parts. For convenience customers can choose to order Fire Sprinkler Valves fully assembled and tested to minimise on site fabrication and labour costs. 3, 4, 5 or 6, gently purg-.
Viking Model D-1 Chrome Fire Sprinkler Head Guard is made from bright basic steel and designed for ease of installation with two bracket halves that spread around the sprinkler head. Viking Model D-1 Chrome Fire Sprinkler Head Guard is a hard-wire cage designed to protect fire sprinklers against mechanical damage. The drip check has a 3/8" pipe plug installed for use with the Model B-1 Accelerator. Erator should equal the system pressure.
Document Information. System air pressure are equal. A. valve located on the Accelerator's outlet port should. Tem operation, the Accelerator be inspected for any signs. Lower section of the Accelerator, Item #3, Fig 1. Is this content inappropriate? Tor's inlet and outlet lines are in the open position. They close, however, against an increase in flow pressure and will open automatically at a predetermined decrease in pressure. The Model D-1 head guard can be added during a retrofit or during initial installation. Check for leakage at the ball drip valve, located. The Viking Model D-2 Accelerator is a direct replacement for the Model D-1 Accelerator. 3, 4, 5 or 6 – Valve B. For datasheets and CAD drawings please Click on products below. Click to expand document information.
Reliable Fully Assembled Wet Valve. Verify that the valves located on both the Accelera-. Sensitivity Test (Model D Dry Pipe Valves only). Least 2 ft. above the dry pipe valve. Reward Your Curiosity. Isolate the Accelerator by closing the valves lo-. Semi–annually or whenever the Accelerator has been dis-.
When the control valve is closed, the alarm line will automatically drain through the drip check. Leakage may indicate the. Reliable DDX-LP UL FM Grooved End Dry Pipe Valve Station. Note: Not for use with Viking XT1 sprinklers. The Viking Model D-2 Accelerator is a quick-opening device, with an integral anti-flood assembly, used to increase the operating speed of a differential type dry pipe valve. Therefore, it is imperative that after sys-. Model D-3 Drip Check is used with a Model D, E, or F Dry Valve that has an automatic drain for the alarm line.
Automatic Ball Drip. To drain low point of system between swing check valve and Fire Dept. Accelerator test without operating the dry pipe valve. Period of validity: 2026-01-20. Cated on the dry pipe valve. Reliable DDX G-G LPCB Single Interlocked Pre-Action Valve Set. Reset the Accelerator following the instructions. Resetting Procedure For Model LDX, DDX, EX Dry Systems & Model DDX Type F. Preaction Systems. When the air/nitrogen pressure in the dry pipe system is lowered sufficiently to overcome the pressure differential, the valve opens allowing water to enter the dry pipe system. Vent into a dry pipe valve's intermediate chamber. One or more sprinklers open. Remove the body drain plug from the lower section. Ent in the top chamber, disassemble the Accelerator, and clean and dry the top and middle chambers and. Body drain plug from the.
The valve is also designed to operate a water motor alarm and/or an electric pressure alarm switch. Report this Document. Configure to See Price. This will simulate a system decay as when.
Must be installed in vertical position only. Remove the top chamber drain plug, Item #3, Fig. De- scribed in the "Resetting Procedure" sections. Close the air and water supply valves to the deluge. 0% found this document useful (0 votes). Buy the Full Version. © © All Rights Reserved. Der to decay the pressure at the inlet of the Accel-. Pressurize the Accelerator by opening valve B, Figs. Sealing surfaces in the dry pipe valve require main-.
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