ASCO 400727-181, Series 552/553 24 V ac Solenoid Valve Coil
The ASCO 400727-181 is a genuine solenoid coil (24 V AC), suited to maintenance teams servicing pneumatic actuators and cylinders. It is also a practical choice for process plants with ASCO spool valves on valve actuators. Genuine stock at General Tech Services LLC, UAE, with free UAE-wide shipping. Request a quote in under a minute - call +971 6 5436933.
Part Number: 400727-181
Contact Number: +971 6 5436933
For Series 552 and 553 valves on 24 V AC control, the ASCO 400727-181 is the matched genuine coil.
On pneumatic spool valves, the coil drives the pilot that shifts the spool and sends air to a cylinder or actuator. A failed coil leaves the actuator stuck in one position, which can stop a machine or leave a process valve unable to move.
A failed coil can stop a whole line, and an incorrect replacement can fail again within days or damage the control circuit. Fitting the genuine ASCO coil with the exact voltage and frequency gets the valve back in service quickly and keeps the original performance. Holding a matched spare coil on the shelf is one of the cheapest ways to protect critical equipment from long, unplanned downtime.
The ASCO 400727-181 is a genuine ASCO replacement coil for the valve series listed. Confirm the part number and voltage against your existing coil before ordering.
Need a different rating within the family? Compare the ASCO 400727-185 (24 V DC), and keep the same installation approach.
Key Benefits
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Restores the valve without breaking into pipework
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Genuine ASCO coil for correct fit and performance
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24 V AC coil connects directly to standard AC control circuits
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Quick on-site replacement reduces downtime
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Genuine ASCO stock with free UAE-wide shipping
Call +971 6 5436933 for pricing and stock availability.
Who This Product Is Best For
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Maintenance teams servicing pneumatic actuators and cylinders
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Process plants with ASCO spool valves on valve actuators
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Machine builders holding spare coils for their valve range
How to Specify & Install It
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Isolate the electrical supply and confirm the old coil's part number and voltage match the ASCO 400727-181.
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Remove the retaining clip or nut and slide the old coil off the valve.
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Fit the new coil and secure it, then reconnect the wiring and earth.
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Power up and confirm the valve switches cleanly.
Frequently Asked Questions
Can I replace just the coil instead of the whole valve?
Yes. If the valve body and internals are in good condition, a new coil restores operation without removing the valve from the line.
How do I know the 400727-181 fits my valve?
Match the part number, voltage and frequency on your existing coil or valve nameplate, or send us the details to check.
What voltage is the 400727-181 coil?
It is rated for 24 V AC. Match this exactly to your control supply, because a wrong voltage can burn out the coil or stop the valve shifting.
Should I choose the 400727-181 or another ASCO model?
Start with your supply voltage, port size and required function. The 400727-181 offers 24 V AC. If you need 24 V DC, the ASCO 400727-185 may suit better. Contact our team to confirm.
What causes solenoid coils to fail?
Common causes are wrong supply voltage, voltage spikes, high ambient temperature and moisture ingress. Fixing the cause helps the new coil last.
Can I fit a coil with a different voltage?
Only if you also change the control supply. The coil voltage and frequency must match the supply exactly.
Is genuine ASCO stock available with UAE shipping?
Yes. Genuine ASCO stock ships free across the UAE. Call +971 6 5436933 for current pricing and lead time.
+971 6 5436933
