Summary of Contents for Norriseal Flow-Lift 7100 Series
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Contents is designed for the prevention of backflow in gas, air Assemblies No-slam closing Operation & or liquid systems. Norriseal’s expertise in the design No special tool required Installation to change seat of piston balanced control valves has introduced new...
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Operation & Installation Operation Installation Normal. Flow is directed under the valve piston Valves 4.00” and smaller may be installed in a and lifts it upward. When flow is stopped, the vertical position. piston descends, closing the valve to prevent Warning: 6.00”...
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Special Features PTFE Piston Seal Ring Seat – Cage Retained Type Norriseal’s use of a PTFE spring energized seal Held in position by guide/cage requiring no ring adds a new dimension to the piston check special tools for removal and can be easily valve.
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Materials MATERIALS OF CONSTRUCTION Material Valve Size Items (inches) Standard NACE MR0175 Optional Body 1.00 - 12.00 ASTM A216, GR. WCC ASTM A216, GR. WCC ASTM A351, GR CF8A ASTM A516, GR 70 or ASTM A516, GR 70 or Bonnet 1.00 - 12.00 ASTM A352, GR.
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Flow Characteristics Pressure Drop vs Flow for Norriseal Series 7100 Piston Check Valves WATER FLOW (GPM) AT 60°F Note: Dotted potion of curves indicates flow with valve spring removed. Flow (Water – S.G. = 1.0) The following formulas may be...
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Norriseal. This manual is for use only with the new Norriseal valves and/or controllers listed in the manual. It may not be distributed with, and is not for use with, any remanufactured products.