General
Description
These compact designs have a durable ceramic flow plate and
dimensionally-stable, self-lbricating Derlin* slide with a "break
before make" design to assure positive shifting.
Pressure and/or exhaust ports can be restricted, or an optional built-in
linear flow device can be used to control cylinder speed.
Specifications
Solenoid Enclosures: Molded epoxy open frame solenoid. Can be
converted from AC to DC, or vice versa, by simply changing the coil.
Additional constructions are available. Optional Electrical Features
include:
- Coil per 3 x DIN 46244
- ½" Threaded Conduit Hub
- Watertight, Types 1 - 4X. To order, replace prefix "U"
in catalog number with "WT"
- Explosionproof, Types 3, 7, and 9 Combination Explosionproof and
Watertight. To order, replace prefix "U" in catalog number
with "EF"
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Constructions:
Solenoid Operated Valves: Single and dual solenoid constructions are
available. Dual solenoid construction may be energized continuously or
momentarily. (Cycle time depends on cylinder size and speed control
setting.
Important: Do not energize both solenoids simultaneously.
Important: Loss of main line pressure will not cause these
constructions to shift in either position.
Single Air Piloted Valves: Refer to graph for
relationship of auxiliary pilot air pressure to main line pressure.
Important: Valves will not change position if main line pressure
is lost as long as pilot pressure is present. If pilot pressre is lost,
valve will change position even if main line pressure is present.
Electrical: Standard Voltages: 24, 120, 240, 480 volts, AC, 60 Hz
(or 110, 220 volts, AC, 50 Hz)
Other voltages are available when required.
Coil: Continuous duty molded Class F.
Nominal Ambient Temperature Ranges: AC Constructions: 0°F to 135°F.
DC Constructions: 0°F to 77°F.
Note: For temperatures below 32°F, moisture-free air must be
used.
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Valve Parts in Contact with Fluids:
Main valve Body, Sub-Base, Manifold Base and End Caps -- Aluminum
Pilot Valve Body -- Molded Zytel Nylon
End Caps -- Stainless Steel (non-metering consturction); Molded Zytel
Nylon (metering construction)
Seals -- Low friction, low wear NBR (carbonized nitrile)
Spool and Slide -- Molded Delrin
Flow Plate -- Ceramic (alumina)
Core Tube -- 305 s.s.
Core and Plugnut -- 430F s.s.
Springs -- 302 s.s.
Other Features: Combination momentary (push) and maintained
(push/turn) manual operator is standard.
Optional built-in linear flow device capable of controlling cv from 0.10
to 0.80 is available.
Approvals: "WT" - UL listed General Purpose Valve. CSA
certified.
"EF" - UL listed solenoid. CSA approval pending for solenoid.
"U" and "SC" - UL recognized component. CSA
certified.
Ordering Information: Important: We must have catalog
number, voltage and Hertz, operating pressure and fluid handled. Use
strainers with Solenoid Valves.
* DuPont Co. trademark
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