Morrison Bros. 710SS Series 2 in. Stainless Steel Anti-Siphon Solenoid Valves w/ PTFE Seal – Flanged

Description

304 Stainless Steel Flanged Anti-Siphon Solenoid Valve for Corrosive & High-Purity Fluid SystemsThe Morrison Bros. 710FSS Series 2-inch flanged solenoid valve is a normally closed, zero-differential-pressure design built for bulk fluid isolation and anti-siphon protection in pipelines handling aggressive or high-purity liquids. The 304 stainless steel body and stainless steel piston make this size well-suited for chilled water loops, glycol-based coolant headers, and deionized water circuits in data center liquid cooling infrastructure, including CDU inlet/outlet isolation and secondary loop backflow prevention. PTFE seals provide broad chemical resistance across a wide range of process fluids, making this valve a reliable choice wherever elastomeric seal compatibility is a concern.The hung piston design opens with zero upstream pressure differential, maintaining reliable actuation even in low-pressure gravity-feed or fluctuating-pressure cooling circuits. An integral thermal relief feature bleeds expansion pressure in the reverse direction of flow, protecting downstream infrastructure from pressure spikes during thermal cycling. The continuous-duty Class H coil supports 24/7 energized operation without thermal degradation, and the NEMA 3/4X/7/9-rated enclosure ensures the solenoid housing remains sealed against moisture intrusion and condensation common in cooling environments. A 100-mesh inlet strainer is strongly recommended to protect the piston mechanism and preserve warranty coverage.Key specifications:Body: 304 stainless steelPiston: Stainless steelSeals: PTFEFlange size: 2 in. | Orifice: 1.5 in. | CV: 27Operating pressure differential: 0–105 PSIMaximum fluid temperature: 302°FPower consumption: 30W | Standard voltage: 120V AC (multiple AC/DC voltages available)Enclosure: NEMA 3, 4X, 7, 9 — watertight, explosion-proof; Groups C and DConnections: Flanged, ANSI 150 RFMaximum viscosity: 60 centistokesUL Certified (Class I Div. 1, Groups C&D; Class II Div. 1, Groups E, F&G; Class III) | cULus ListedNOTE: 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