Bulletin 14CAN

Directional Control Valves 8 Specifications and prices subject to change without notice or incurring obligation Technical Data Principle of Operation Function: 2-way, 2 position normally closed internal pilot diaphragm Port Sizes: 1/4", 3/8", 1/2" NPT Orifice Sizes: 1/2" Pressure Range: 0 to 230 PSI 1/4" to 1/2" NPT (Valve requires 1.5 PSI differential to fully open.) Flow Factors: 1/4" NPT 1.55 Cv 3/8" NPT 1.95 Cv 1/2" NPT 2.45 Cv Temperature Range: (Fluid max. 90 ° C) Ambient -10 ° to +80 ° C Response Time: 20 to 80 ms complete cycle Materials: Operator: AISI 400 and 300 Series Stainless Steel or Brass Shading Ring: Copper (Silver on request) Seal: Viton standard (Nitrile, EPDM optional) Diaphragm: Viton standard ( Nitrile, EPDM optional) Valve Body: Forged brass & glass filled Nylon Manual Override: Push non-locking Media: Air, oil, water, emulsion, inert gases Coil Data: Glass filled nylon encapsulation (Class F, continuous duty) 10 watt VDC, 8 watt VAC. All standard industrial voltages. Voltage tolerance: +/- 10% Connectors available for ISO “C-Tab” Spades – see next page for part numbers. ® Zytel is a registered trademark of DuPont The Series 3500 2-way, 2-position Solenoid valve uses the latest combinations of technologies for materials and function which pro- vide the user with the highest quality, smallest size per Cv of flow and most competitive pricing of any valve on the market. The 3500 utilizes the latest injection molding and forging technologies available which combined garner the highest quality yields of components. When coupled with the solenoid operator and used as a direct acting/pilot operated valve, the 3500 gives full flow throughout the pressure range starting Open Position When energized with no supply pressure, the ar- mature lifts allowing the pre-loaded diaphragm to lift, opening the valve. When supply pressure is applied, pressure above the diaphragm is relieved via the open pilot gallery. The fluid pressure below assists in holding the dia- phragm open. Closed Position With no supply pressure and the valve de-ener- gized, spring force from the armature holds the valve closed. As the sup- ply pressure is increased, pressure builds up on top of the diaphragm via the bleed hole. This force, act- ing on the larger effective area, holds the valve closed (in conjunction with the armature spring). Series 3500 1/4, 3/8, 1/2 NPT 2-Way normally closed/open 2-Way, 2-Position normally closed/open Process Solenoid Valves with an MOPD of zero psi. The forged body section gives strength and robustness to the valve and is available in 1/4”, 3/8” and 1/2” NPT sizes. The orifice for all sizes is 12.5mm or 1/2”. The molded pilot section features a push non-locking manual override, high cycle life solenoid parts and quick connect DIN 43650 “A” electrical connection. Typical applications include air control, inert gas control, water, inert fluids, con- densate drainage, hot water plumbing and sprinkler systems. 10-20-04 CA CD CN2/2 032 051 ON2/2 581 051 VOLTAGE F U N C T I O N MAX. PRESSURE RANGE

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