Flowserve A25N NAMUR Directional Valve - Manual

© 2003, Flowserve Corporation, Printed in USA
LMR0012-1 (Auto-12) 2/03
3-Position Control/Dribble Control
SR Limit Switch Method
Automax Valve Automation Systems
Installation, Operation and Maintenance Instructions
Flowserve Corporation 1350 N. Mountain Springs Parkway 1978 Foreman Dr.
Flow Control Division Springville, Utah 84663 Cookeville, TN 38501
www.flowserve.com Phone: 801 489 8611 Phone: 931 432 4021
The Automax NAMUR Directional valve mounts
directly to SuperNova series actuators which
eliminates the cost of tubing and fittings. The valves
are available for double acting and spring return
actuators with NEMA 4X, NEMA 4X, 7 & 9, or
weatherproof intrinsically-safe and low power
solenoid operators. These valves have been tested
and proven reliable for over 1 million cycles.
Options:
Dual coil 2-position and 3-position valves are available.
Consult factory.
Sandwich NAMUR mount accessories:
APS1 - Air purge system to purge spring chambers
with solenoid valve exhaust.
4-way Valve (Double-acting Actuators)
When operator is energized, the spool shifts, driving the
actuator CCW. When de-energized the spool returns,
driving the actuator CW. For de-energized CCW, rotate
directional valve 180
°.
Temperature: NEMA 4X: -20
°F to 150°F
NEMA 4X, 7 & 9: -20 °F to 125°F
For temperatures below 40 °F, air must
be free of water vapor.
Pressure: Minimum: 35 psig
Maximum: 150 psig
Media: Dry or lubricated non-corrosive gas
compatible with nitrile seals.
C
V
= 1.8
Flow Schematics:
(Port 1 - air supply)
3-way Valve (Spring Return Actuators)
When operator is energized, the spool shifts allowing the
air pressure to enter the actuator and compress the
springs. When de-energized, the spool returns,
exhausting the air.
Operation
Solenoid will not shift without backpressure on ports
2 and 4. Air supply lines to the valve must have I.D.
at least as large as the NPT size of valve ports. • Coil is U.L. and C.S.A. recognized.
• Standard 1/2" NPT connector meets
NEMA 4X rating.
• Connectors with strain relief for wiring
with 3 lead, 18ga cord available.
• Eliminates junction boxes at solenoid.
Simply plug in and tighten screw for
easy installation and service.
• Standard with non-locking override.
• Continuous duty molded class H coil.
NEMA 4X, 7 & 9 "Explosion-proof"
• 1/2" NPT conduit
• 24" Electrical leads
• Meets U.L., C.S.A. and
NEMA requirements for
Class I, Gr C & D Div. 1 & 2
Class II, Gr E, F & G Div. 1 & 2
• Standard with non-locking override
• Continuous duty molded
Class B Coil
Solenoid Electrical Characteristics
Characteristics for standard coils are shown below.
All common voltages and hertz are available.
Weatherproof intrinsically-safe/low power
A .67 watt coil is available with 1/2" NPT weatherproof
housing. The operator has Factory Mutual Entity approval.
See the separate I.S. operator I.O.M. for further information.
Solenoid Information
NEMA 4X Weatherproof
AC VOLTAGE ±10% DC VOLTAGE
WEATHERPROOF 120 VAC 240 VAC 12 VDC 24 VDC
Inrush Amps 0.078 0.041 0.400 0.200
Holding Amps 0.058 0.030 0.400 0.200
Resistance ( Ω ) 840 3310 31.6 121
EXPLOSION-PROOF
Inrush Amps 0.127 0.063 0.632 0.320
Holding Amps 0.057 0.038 0.632 0.320
Resistance ( Ω ) 475 2000 19.0 75
Page 1 of 2
FC1, FCSR and FCDA - Single port and dual port
exhaust flow controls.
LV1 - Lockout and vent valve for lockout and
manual override applications.
Automax sandwich NAMUR mount accessories provide compact,
clean control packages for the SuperNova actuator.
A25N NAMUR Directional Valve
3 1 5
2 4
3 1 5
2 4