Morrison Bros. 710SS Series 1 in. Stainless Steel Anti-Siphon Solenoid Valves w/ PTFE Seal – Threaded

Description

1-Inch Stainless Steel Anti-Siphon Solenoid Valve for Fuel Systems & Liquid Cooling InfrastructureThe Morrison Bros. 710SS is a normally closed, hung-piston solenoid valve with a 304 stainless steel body and PTFE seals, sized at 1″ NPT for mid-range flow applications. It installs on the dispensing side of a fuel or fluid pipeline, remaining closed until an electronic signal (from a dispenser, pump controller, or BMS) commands it open. The 1″ size carries a CV of 12 and handles operating pressures up to 105 PSI, making it a practical fit for single-rack or small-cluster coolant distribution unit (CDU) supply and return lines where moderate flow rates and a compact footprint are priorities. Zero pressure differential operation means the valve opens reliably even under low-pressure start-up conditions common in server rack manifolds.The 304 SS body and PTFE seal combination resists galvanic corrosion and ion contamination in deionized water loops, glycol-based coolants, and dielectric fluids used in direct-to-chip and immersion cooling systems. The integral thermal relief feature protects closed loop segments from pressure spikes caused by thermal expansion under high server loads. The Class H coil operates at 120V AC standard, with the explosion-proof NEMA 3/4X/7/9 enclosure covering hazardous location requirements (relevant for two-phase immersion cooling environments with low-flashpoint fluid volatility).Key specifications:Size: 1″ NPTBody: 304 stainless steelSeals: PTFEPiston: Stainless steelOrifice: 1″CV: 12Operating pressure differential: 0–105 PSIMafluid temperature: 356°FMin operating temperature: -40°FPower consumption: 30 wattsCoil: Continuous duty Class H, 120V AC standard (multiple voltages available)Enclosure: Watertight, explosion-proof — NEMA 3, 4X, 7, 9; Groups C and DMafluid viscosity: 60 centistokesCertifications: UL/cULus Listed; Class I Div. 1 Groups C&D; Class II Div. 1 Groups E, F, G; Class IIIInstall orientation: Horizontal pipeline, upright vertical positionNOTE: Product can only be pumped in one direction, the direction of the flow arrow. Not designed for use as an overfill prevention or process control valve.FeaturesNormally closed, hung piston designInstall in a horizontal pipeline in the upright vertical positionZero pressure differentialIntegral thermal relief allows the valve to relieve expansion pressure in the opposite direction of flowContinuous duty Class H standard coil operates at 120 voltsSeveral optional coil voltages availableEnclosure is watertight and rated for hazardous locations—NEMA 3, 4X, 7 and 9; groups C and DRecommended for use with liquids having a maximum viscosity of 60 centistokesA strainer with a 100 mesh screen is recommended at the valve inletConstruction DetailsBody: Stainless steelSeals: Viton®, PTFESolenoid housed in an integral, watertight, explosion-proof shellCertificationsCSA approved for hazardous locationsClass I, Groups C and DClass II, Groups E, F and GClass III • T3C