19 www.morbros.com ANTI-SYPHON VALVES Solenoid Valve ( normally closed) Installed on pipeline leading from an aboveground tank. This valve is used to help prevent accidental siphoning of product from the tank in the event of a fracture in the pipe or other cause for leak downstream and below the liquid level. The Fig. 710 solenoid valve is a two-way, one directional ow, hung piston type valve with normally “closed at rest positioning.” The valve opens upon receipt of an electronic signal such as when a dispenser or pump is switched on. Fig. 710F… same as 710, anged. Fig. 710FSS… same as 710, anged and stainless steel. Characteristics and Options 1. Operates at 120 volts (240 volts available). 2. Includes a continuous duty Class H standard coil. 3. Must be mounted with solenoid vertical and upright. 4. No differential pressure is required to open the valve. 5. Connects to ½" conduit. 6. Enclosure is watertight and rated for hazardous locations— NEMA 3, 4X, 7 and 9; groups C and D. 7. A strainer with 100 mesh screen is recommended at the inlet. 8. Has built-in expansion relief. 9. Maximum viscosity of 60 centistokes. 10. Fig. 710SS is stainless steel. Code Compliance CSA Certi ed. Construction Details Body…cast bronze or stainless steel Seals…Viton® , Te on®, Solenoid housed in an integral, watertight, explosion-proof shell. Solenoid Valve ( normally open) General purpose valve for applications such as pressure systems, machine tools, water processing and steam systems. The Fig. 711 solenoid valve is a high ow pilot operated piston valve that is “normally open.” Install on horizontal line with the solenoid coil in the upright and vertical position. 3 PSI pressure differential required to keep valve open. It has a maximum viscosity rating of 60 centistokes. Fig. 711NC… The Fig. 711NC Normally Closed Solenoid Valve is a pilot operated, normally closed valve when in the "at rest" position. This valve is used to prevent accidental siphoning of product from the tank in the event of a fracture in the pipe or due to a leak downstream and below the liquid level. The valve opens upon the receipt of an electronical signal such as when a dispenser or pump is switched on. Size Construction Weight ¾" Brass with Viton® Seal 11.0 lbs 1" Brass with Viton® Seal 13.0 lbs 1½" Brass with Viton® Seal 16.0 lbs 2" Brass with Viton® Seal 21.0 lbs 3" Brass with Viton® Seal 44.0 lbs 1½" Stainless Steel with Teflon® Seal 16.0 lbs 2" Stainless Steel with Teflon® Seal 21.0 lbs 3" Stainless Steel with Teflon® Seal 44.0 lbs Size Construction Weight ¾" Brass with Viton® Seal 2.86 lbs 1" Brass with Viton® Seal 5.5 lbs 1½" Brass with Viton® Seal 8.6 lbs 2" Brass with Viton® Seal 9.47 lbs NOTE…Product can only be pumped in one direction, the direction of the flow arrow. NOTE…Not designed for use as an overfill prevention or process control valve. Fig. 710 Fig. 711 710 Series 711 Series Fig. 710FSS Construction Details Body…forged brass Cover…forged brass
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