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ASCO
The Emerson ASCO 551–553 air-operated spool valve is a precision-engineered directional control valve designed for reliable switching and control of compressed air in industrial pneumatic systems. Manufactured by Emerson ASCO, a global authority in automation and fluid control, this spool valve series is built for high cycle life, fast response, and consistent performance in demanding operating environments.
The 551–553 series features a robust air-operated spool valve design with an internal sliding spool mechanism that ensures accurate port alignment, low internal leakage, and smooth directional switching. These valves are typically pilot-operated by air or solenoid valve actuation, making them ideal for integration into automated control systems and PLC-driven machinery. The durable metal body construction provides excellent resistance to vibration, pressure fluctuations, and industrial contaminants.
Key Advantages
Typical Applications
The Emerson ASCO 551–553 air-operated spool valve is widely used in:
These valves are well suited for applications requiring frequent cycling, precise directional control, and dependable performance in continuous-duty environments.
General Data |
|
|---|---|
| Function | 5/2, Air-Controlled With Spring Return |
| Connection | G1/2 |
| Operating Pressure Differential | 0-10 bar |
| Flow factor / flow coefficient | 52.5 Kv |
| IP class | IP65 |
Material Data |
|
| Material body | Anodized aluminum |
| Material of seals | NBR, PUR |
| Material internal parts | Steel, POM, Aluminium, Zinc Diecast |
Temperature Data |
|
|---|---|
| Temperature ambient from | -25 °C |
| Temperature ambient to | 60 °C |
Additional Data |
|
| Approvals | IEC, TÜV |
| Weight | 1.24 kg |
| Type of valve | Air controlled |
| Pilot pressure | 2-10 bar |
| Flow max | 3800 l/min |
The Emerson ASCO 551–553 air-operated spool valve is a precision-engineered directional control valve designed for reliable switching and control of compressed air in industrial pneumatic systems. Manufactured by Emerson ASCO, a global authority in automation and fluid control, this spool valve series is built for high cycle life, fast response, and consistent performance in demanding operating environments.
The 551–553 series features a robust air-operated spool valve design with an internal sliding spool mechanism that ensures accurate port alignment, low internal leakage, and smooth directional switching. These valves are typically pilot-operated by air or solenoid valve actuation, making them ideal for integration into automated control systems and PLC-driven machinery. The durable metal body construction provides excellent resistance to vibration, pressure fluctuations, and industrial contaminants.
Key Advantages
Typical Applications
The Emerson ASCO 551–553 air-operated spool valve is widely used in:
These valves are well suited for applications requiring frequent cycling, precise directional control, and dependable performance in continuous-duty environments.
Whether you're looking to upgrade your current solution or secure a more robust float switch for your next project, Taurus delivers performance you can count on.
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When it comes to solenoid valves, reliability and ease of maintenance are essential. That’s why our new Emerson, high flow solenoid valve is designed with unique features that streamline testing, commissioning, and ongoing operation.
Did you get a chance to visit IATECH at The Leicester Marriott Hotel? We had over 33 exhibitors and 8 fantastic Tech Talks throughout the day, Read all about the day, here.
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| Parts | Function | Connection | Flow factor / flow coefficient | Weight | Flow max | Short circuit protection | Manual operation | Price | ||
|---|---|---|---|---|---|---|---|---|---|---|
G553A117…5/2 Air / Spring Return, G 1/2", 0-10 bar, 52.5, NBR & PUR
Art:
G553A117
Copied
|
5/2, Air-Controlled With Spring Return
|
G1/2
|
52.5 Kv
|
1.24 kg
|
3800 l/min
|
|
|
| ||
|
G553A118…5/2 Air / Air Return, G 1/2", 0-10 bar, 52.5, NBR & PUR
Art:
G553A118
Copied
|
5/2, Air-Controlled With Air Return
|
G1/2
|
52.5 Kv
|
1.24 kg
|
3800 l/min
|
|
|
| ||
G551A117…5/2 Air / Spring Return, G 1/4", 0-10 bar, 12.5, NBR & PUR
Art:
G551A117
Copied
|
5/2, Air-Controlled With Spring Return
|
G1/4
|
12.5 Kv
|
0.43 kg
|
860 l/min
|
No
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No
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G551A118…5/2 Air / Air Return, G 1/4", 0-10 bar, 12.5, NBR & PUR
Art:
G551A118
Copied
|
5/2, Air-Controlled With Air Return
|
G1/4
|
12.5 Kv
|
0.43 kg
|
860 l/min
|
No
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No
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Select a variant in the list
