Morrison Bros. 710 Series 3/4 in. Anti-Siphon Solenoid Valves

Description

Compact Normally Closed Anti-Siphon Solenoid Valve for Fuel Lines & Cooling LoopsThe Morrison Bros. 710 Series ¾-inch solenoid valve is a normally closed anti-siphon valve designed for installation on the dispensing side of fuel system pipelines, where it prevents uncontrolled product siphoning if a downstream pipe fracture occurs below the tank’s liquid level. Its smaller ¾-inch size suits tighter piping runs and lower-flow branches (including secondary coolant distribution loops, rack-level manifold feeds, and direct-to-chip cooling circuits in data center liquid cooling infrastructure) where a fail-safe shutoff is needed without a larger valve body.Built around a cast bronze body with FKM seals, the valve handles fluids up to 60 centistokes viscosity and a maximum temperature of 302°F (150°C). Like all 710 Series valves, it uses a hung piston design that opens at zero pressure differential, so it performs reliably at the low system pressures common in gravity-fed or low-head cooling loops. The continuous duty Class H coil runs at 120V AC standard, with a broad range of AC and DC voltage options available for integration into varied facility control systems. The integral watertight, explosion-proof enclosure is rated NEMA 3, 4X, 7, and 9, UL Certified for Class I Division 1 Groups C and D, Class II Division 1 Groups E, F, and G, and Class III.Key specifications:Connection size: ¾ in. NPTOrifice size: ¾ in.Cv: 7Operating pressure differential: 0–105 PSIMaximum fluid temperature: 302°F (150°C)Minimum operating temperature: -40°FPower consumption: 30 wattsDimensions (710-0075): 4.0 in. L × 5.9 in. H × 1.5 in. WMust be installed horizontally with solenoid coil upright and vertical100-mesh inlet strainer required to protect piston assembly from particulate contaminationNOTE: 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 voltsEnclosure is watertight and rated for hazardous locations—NEMA 3, 4X, 7 and 9; groups C and DSeveral optional coil voltages available710MO has manual override feature. Available in sizes ranging from ¾″ to 2″ for operation during a power outageRecommended for use with liquids having a maximum viscosity of 60 centistokesA strainer with a 100 mesh screen is recommended at the valve inletConstruction DetailsBody: Cast bronzeSeals: Viton®, Teflon®Solenoid housed in an integral, watertight, explosion-proof shellCertificationsCSA approved for hazardous locationsClass I, Groups C and DClass II, Groups E, F and GClass IIIT3CDownloadsInstallation Instructions (PDF Download)Spec Sheet (PDF Download)