ASCO SCG551A018MS.AC/DC, 5/2 Bistable Spool Valve - Electro-Pneumatic G 1/4 551 Series
SCG551A018MS
The ASCO SCG551A018MS is a Series 551 5/2 spool valve with G 1/4 ports, bistable actuation and an AC/DC coil. It switches compressed air to control double-acting cylinders and pneumatic actuators from a control system. Genuine ASCO stock is supplied by General Tech Services LLC, UAE, with free UAE-wide shipping. Request a quote in under a minute - call +971 6 543 6933.
The ASCO SCG551A018MS provides 5/2 directional control with one supply, two outlets and two exhausts, making it suitable for driving double-acting cylinders in both directions. Its bistable operation and AC/DC coil provide compatibility with control systems designed for the specified electrical supply.
Typical applications include automated machines using double-acting cylinders, control panels with AC/DC coils and like-for-like replacement of an ASCO Series 551 valve. When selecting a directional control valve, confirm the function, actuation and return type, port size and coil voltage or supply requirements. For replacement applications, providing the existing valve part number helps confirm the correct variant.
Ready to order the ASCO SCG551A018MS? Speak to our team. Call +971 6 543 6933
Key Benefits
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5/2 directional valve function
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G 1/4 ports
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AC/DC coil operation
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Bistable actuation
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Suitable for double-acting pneumatic cylinders
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Genuine ASCO (Emerson) product and specification
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Free UAE-wide shipping on genuine ASCO stock
Who This Product Is Best For
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Double-acting cylinders on automated machines
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Control panels using compatible AC/DC coils
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Pneumatic automation systems requiring 5/2 directional control
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Maintenance teams replacing a like-for-like ASCO Series 551 valve
How to Install & Use It
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Confirm that the 5/2 function, bistable actuation, G 1/4 port size and AC/DC coil match your pneumatic circuit.
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Mount the valve and connect the supply, outlet and exhaust ports according to the markings.
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Wire the coil to the control output using the appropriate AC/DC supply.
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Check the electrical connections and pneumatic connections before commissioning.
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Test switching with the actuator unloaded.
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After confirming correct operation, test the system under working pressure.
Frequently Asked Questions
What does the ASCO SCG551A018MS do?
It is a 5/2 spool valve designed to switch compressed air and control double-acting pneumatic actuators such as cylinders in both directions.
What does 5/2 mean?
5/2 means five ports and two switching positions: one supply, two outlet ports and two exhaust ports.
What voltage does the ASCO SCG551A018MS use?
It uses an AC/DC coil. Confirm the available control supply and product requirements before installation.
What is the port size?
The valve has G 1/4 ports.
What type of actuation does it use?
The ASCO SCG551A018MS uses bistable actuation.
What air quality does it need?
Use clean, dry, filtered compressed air. Appropriate air preparation helps protect pneumatic components and maintain consistent switching.
How should I choose this valve or another Series 551 option?
Choose the valve based on function, actuation and return type, port size, electrical supply and application requirements. For replacements, provide the existing valve part number to General Tech Services LLC for compatibility confirmation.
What is the difference between the ASCO SCG551A018MS and G551A105?
The SCG551A018MS is a 5/2 spool valve with G 1/4 ports, bistable actuation and an AC/DC coil, while the G551A105 is a 3/2 pneumatic spool valve with G 1/4 ports and air-pilot operation. Select based on the required function, control method and application requirements.
Can you supply matching ASCO parts in the same order?
Yes. General Tech Services LLC can supply ASCO pneumatic components such as solenoid and spool valves, shut-off valves, silencers, filters, regulators, cylinders and position detectors. Share your application requirements for a matching quotation.
Is genuine ASCO stock available in the UAE?
General Tech Services supplies original ASCO valves in the UAE with technical support and free UAE-wide shipping.
What details should I send with a quote request?
Provide the part or model number, required quantity and application details such as pressure, flow, equipment type and operating environment. This helps confirm the correct ASCO variant.
What is the price of the ASCO SCG551A018MS?
Pricing is quote-based. Call General Tech Services LLC on +971 6 543 6933 or submit the Request a Quote form.
For pricing or to place an order, contact General Tech Services LLC. Call +971 6 543 6933.
