Non Return Valve By Valtree Group

Pre Insulated Ball Type Non Return Valve Valtree Ball Type NRVs (Non-Return Valve) are unique and simple design but robust design with no critical mechanism involved. All parts like hinge-pin-disc mechanism used in conventional valve are eliminated and Valtree has put in a reinforced rubber coated ball to arrest flow media in return condition. This ball moves totally out of the flow path when the pumping is on to give minimum head losses. The spherical rubber coated ball seals perfectly on the rounded valve seat ensuring a totally leak proof sealing. This design offers other advantages like non-clogging & self cleaning. In this virtually maintenance free valves if required after prolonged usage the on-line replacement of the balls is just a minute job. Technical Details Body & Cover VI(G G25) / CI FG 260 Ball Nitrile Rubber / EPDM Rubber / Neoprene Coated Seat Leaded Tin Bronze Insulation Rigid Poly Urathane Note: Other materials on request Sizes 25 to 300 NB Pressure rating 25 to 125 NB: PN1.6 150 to 300 NB: PN 1.0 Installation Vertical / Horizontal Options Pre- Insulated / Bare Lower Power consumptionLarger solid handling capacitySelf cleaning Non CloggingPerfect SealingLow Pressure DropMaterial Of Constructions Description Standard Special Body Cast Iron Stainless Steel, Cast Steel Cover Cast Iron Stainless Steel, Cast Steel Ball Nitrile Reinforced EPDM Neoprene Cover Ring Nitrile Rubber Butyle Viton Ball Seat Ring L. T. Bronze Stainless Steel, Hard Rubber Fasteners Carbon Steel Stainless Steel Insulation PUR PIR The Key Features The heart of this valve is a reinforced rubber ball. The unique design of the valve allows free movement of the ball. The ball moves to open position when the pump starts & allows free flow of liquid without any interference. As the pump stops the ball seats firmly against the metal seat due to its own weight & back pressure of the liquid. This results in DROPLESS sealing. Dimensionally compatible with IS 5312 (Face to Face)Can be installed vertically or horizontallyOperates silently