Viking A-1 Manuals

Speed control aSSembly model a-1 tecHnIcal data 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: [email protected] Page 1 of 5 Form No. F_091794 16.04.28 Rev 16.1 1. deScrIptIon The Viking Speed Control Assembly provides adjustment of the opening speed of Viking Deluge Valves, and adjustment of both the opening and closing speed of Viking Flow Control Valves. Water hammer, which may result from the opening of a deluge valve or opening and closing of a flow control valve, may be reduced by adjusting opening and/or closing speed. Also, use of the speed control assembly, along with the Viking Pilot Pressure Regulating Valve, enables pressure regulation for reducing high water supply (inlet) pressures to lower outlet pressures. The speed control assembly is factory assembled for easy installation, and is listed for optional use with Viking Deluge and Flow Control Valves equipped with Conventional Trim. The Viking Speed Control Assembly is required when a Viking Flow Control Valve is equipped with a Viking Pilot Pressure Regulating Valve. 2. lIStIngS and approValS: UL Listed for use with UL Listed Viking Deluge Valves and Flow Control Valves equipped with Conventional Trim. UL Listed as a required component when UL Listed Viking Flow Control Valves are equipped with the Viking Pilot Pressure Regulating Valve. FM Approved - Deluge Sprinkler Systems, Preaction Sprinkler Systems, Refrigerated Area Sprinkler Systems, On-Off Multi Cycle Sprinkler Systems 3. tecHnIcal data Specifications: Water Working Pressure Rating: For use up to 250 PSI (17.2 bar) material Standards: Refer to Chart in Figure 1. ordering Information: Part Numbers: 08780 (Galvanized) or 11181 (Brass) Shipping Weight: Approximately 6.8 lbs (3.1 kg) Available since 1994. 4. InStallatIon general Installation Instructions: The Viking Deluge Valve or Flow Control Valve used must be trimmed with Conventional Trim and installed in an area not subject to freezing temperatures or physical damage. When corrosive atmospheres and/or contaminated water supplies are present, it is the owner’s responsibility to verify compatibility with the Valve, Trim, Speed Control Assembly, and associated equipment. For proper operation and approval, the Speed Control Assembly must be installed according to the appropriate Viking Deluge Valve or Flow Control Valve Trim Chart and Viking schematic drawings for the system being installed. Trim Charts are provided in the Speed Control Assembly Package. 1. Verify that the Viking Deluge Valve Trim or Flow Control Valve Trim used is Conventional Trim (Refer to Figure 2). If the trim has been installed, verify that it has been installed according to current trim charts. 2. Verify that the system is out of service and that the Deluge or Flow Control Valve Conventional Trim has been de-pressurized and properly drained. 3. On valves with trim installed, remove the pipe connecting the priming chamber to the trim by loosening the two unions pro- vided. 4. Remove plastic thread protectors from the Speed Control Assembly. 5. Apply a small amount of pipe joint compound or tape to the external threads of all pipe connections required. Take care not to allow any compound, tape, or other foreign matter inside any of the nipples or openings of the Speed Control Assembly or other trim components. 6. Remove the union parts from the pipe removed in step 3 and install them on the 1/2” (15 mm) NPT nipples provided on the Speed Control Assembly. 7. Install the Speed Control Assembly as shown on the appropriate Viking Trim Chart provided in Figure 2. Viking Technical Data may be found on The Viking Corporation’s Web site at http://www.vikinggroupinc.com. The Web site may include a more recent edition of this Technical Data Page. Replaces page 533a-d, dated January 4, 2010. (Revised the Replacement Parts list. Updated to ANSI style.)