The ASCO™ 221 Series is a uniquely engineered slow-closing solenoid valve designed to maximize flow and throughput in demanding commercial applications. Its specialized design effectively mitigates water hammer—a common cause of system damage and pressure spikes—by slowing the disc’s closing speed.
These valves are ideal for applications in commercial laundry and kitchen equipment, molding machines, steam-atomizing sterilizers, and autoclaves, where precise and durable fluid control is critical. With their compact design that minimizes heat radiation loss and the flexibility for installation in any position, the ASCO 222 Series offers a versatile and reliable solution for your high-temperature flow control needs.
Engineered for High Temperatures: Specifically designed to handle high-temperature fluids, including steam service up to 125 psi differential pressure and 355°F (approximately 179°C).
Proven, Durable Design: The pilot-operated mechanism with a floating piston or diaphragm construction provides reliable, long-lasting operation in rigorous environments.
Compact & Efficient: The compact brass body design helps to minimize heat loss, improving system efficiency and safety.
Versatile Installation: Valves can be installed in any orientation, providing flexibility for integration into various system layouts.
Broad Compatibility: Suitable for use with both steam and hot water, simplifying inventory for multiple applications.
Global Certifications: Coils and assemblies meet various international standards, including UL and CSA, and are available with ingress protection ratings such as IP67.
The table below summarizes the core specifications for the ASCO 222 Series. Specific parameters may vary by model and size.
| Attribute | Specification |
|---|---|
| Valve Function / Type | 2-way, 2/2 (Two-Port, Two-Position), Normally Closed (NC) |
| Actuation Method | Solenoid, Pilot-Operated |
| Body Material | Brass or Stainless Steel |
| Compatible Media | Steam, Hot Water |
| Port Sizes Available | 1/4″, 3/8″, 1/2″, 3/4″, 1″ |
| Port Connection Type | NPTF (Tapered Pipe Thread) |
| Maximum Operating Pressure | 9 bar (approx. 130 psi) |
| Maximum Fluid Temperature (Steam) | Up to 355°F (179°C) |
| Ambient/Coil Temperature Range | -20°C to +40°C |
| Flow Coefficient (Cv) | Ranges available: 1.0 – 2.0 Cv; 2.0 – 6.0 Cv; 6.0 – 14.0 Cv |
| Flow Coefficient (Kv) – Example Models | 3.3 m³/h (1/2″), 5.1 m³/h (3/4″), 12 m³/h (1″) |
| Response Time | Typically 100 ms (for standard sizes) |
| Voltage Options | Wide range of AC and DC voltages available (e.g., 24VAC, 110/115VAC, 230VAC, 24VDC) |
| Electrical Connection | DIN plug connector or spade terminals |
| Standards & Approvals | CSA, UL, NEMA Enclosure Types (1, 2, 3, 3S, 4, 4X, 6, 6P, 7, 9) |
| Ingress Protection (IP) | IP67 (for models with protected coil housing) |
| Installation | Can be mounted in any position |
The ASCO 222 Series is the preferred choice for automated on/off control in systems requiring durable steam or hot water valves:
Commercial Laundry & Kitchen Equipment: For steam supply control in large-scale washers, dryers, and commercial cookers.
Sterilization & Medical Equipment: In steam autoclaves and sterilizers where reliable, contamination-free control is essential.
Industrial Process Heating: For mold temperature control, steam-atomizing processes, and other industrial heating applications.
General Hot Water Systems: Providing reliable shut-off in high-temperature water lines.
Backed by the engineering heritage of Emerson, the ASCO 222 Series represents a commitment to reliability in harsh environments. Its specialized design for steam service, combined with flexible mounting and global certifications, ensures system integrity, reduces maintenance needs, and provides long-term value for your critical high-temperature applications.
For detailed technical datasheets, specific model selection, or pricing information, please do not hesitate to contact us.
If you have any questions about the specifications or the suitability of the ASCO 222 Series for your application, please contact the Kateteco sales team for expert support.
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KateTeco (Tianjin) Technology Co., Ltd. serves as an outstanding partner in the field of industrial fluid automation, specializing in the introduction and integration of high-end valves and instruments. We are committed to providing customers with safe, reliable, and intelligent system solutions. By leveraging global leading product resources and supported by systematic professional training and on-site technical assistance from Emerson’s experienced engineers, we ensure that customers can respond promptly and accurately to technical challenges.
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