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타입 = Reduced Bore, 2 Way Ball Material = Stainless Steel Attachment
타입 = Threaded Thread Standard = BSPP Thread Size = 12.7mm Body Material = Stainless Steel Safe for Use With = Gas, Oil, Water Handle
타입 = Lever Handle Material = PVC Coated Steel Maximum Working Pressure psi = 1000psi Operating Pressure = 68bar 1 Piece Screwed End Ball Valve. RS Brand reduced-bore quarter-turn stainless steel ball valves for the control of flow. Available in a variety of sizes. Features:. ; 499-2789 499-2789 - 1/4 inch BSPP F-F ; 499-2795 499-2795 - 1/2 inch BSPP F-F ; 499-2802 499-2802 - 3/4 inch BSPP F-F ; 499-2818 499-2818 - 1 inch BSPP F-F ; 499-2824 499-2824 - 1-1/4 inch BSPP F-F ; 499-2830 499-2830 - 1-1/2 inch BSPP F-F ; 499-2846 499-2846 - 2 inch BSPP F-F. Features and Benefits:. Reduced port, 1/4" - 3" (DN8 - DN80) W.P: 1000WOG (PN63) W.T: -20°C to 200°C (-4°F to 392°F) Investment casting Blow-out proof stem Anti-static device (option) Locking device Thread type: ASTM B1.20.1 (NPT) DIN2999 ; BS21 ISO7/1 ; EN10226. Materials:. ;ul> ;li>Body, Retainer and Ball - ASTM A351-CF8M and ASTM A351-CF8 ;/li> ;li>Seat A ; B - PTFE/RTFE ;/li> ;li>Stem - AISI 316 ;/li> ;li>Thrust Washer ; Packing - PTFE ;/li> ;li>Gland Ring, Spring Washer, Stem Nut - AISI 304 ;/li> ;li>Handle ??Stainless Steel ;/li> ;li>Handle Sleeve - PVC ;/li> ;li>Locking Device ??Stainless Steel ;/li> ;/ul>. Typical Applications. Body ; Retainer - ASTM A351-CF8M/ASTM A351-CF8 Ball - ASTM A351-CF8M Seat A ; B - PTFE/RTFE Stem - AISI 316/AISI 304 Thrust Washer ; Packing - PTFE Gland Ring, Spring Washer, Stem Nut ; Handle - AISI 304 Handle Sleeve - PVC Locking Device - AISI 304. FAQs. How does a manual ball valve work? A ball valve is a type of shut off valve that controls the flow of liquids or gases by its rotary ball. The valve is open when the ball ??s hole is in line with the flow and closed when the ball is rotated by a quarter turn (90 degrees) by the value handle. What is the difference between full bore and reduced bore ball valves? A full-bore ball valve (also known as full port) has an oversized ball so that the hole in the ball is the same size as the pipeline resulting in lover friction loss. In other words, the bore diameter has the same internal diameter as the pipe. A reduced bore valve has a smaller bore diameter than the internal diameter of the pipework it is on.
