The ASCO™ Series 342 is a line of high-flow, direct-acting slide valves designed for reliable directional control in a wide range of industrial applications. Engineered for performance and durability, this valve is available in both single and dual solenoid configurations, providing flexibility for various control schemes.
Its robust slide-style design ensures excellent flow characteristics and reliable shifting, making it an ideal choice for controlling double-acting cylinders. A key operational advantage is that it requires no minimum operating pressure differential to shift, ensuring consistent performance from startup under varying system conditions.
The valve is built for versatility and ease of integration. It can be mounted in any position and is suitable for use in both indoor and outdoor environments, backed by various global standards and certifications. Typical applications include analytic and diagnostic equipment, biofuels systems, dust collector control, heating equipment, and refining applications.
Key Features:
Dual-Solenoid Option with Memory Function: The dual-solenoid version can be energized momentarily (as short as 1/10 second) or continuously. Its mechanical detent holds the last valve position even after a loss of electric power or system pressure, a critical safety and process feature.
High Flow in a Compact Design: The direct-acting, slide-style poppet construction provides superior flow capacity relative to its size.
Zero Pressure Operation: Shifts reliably with no minimum required pressure differential.
Flexible Installation & Control: Can be mounted in any position. Optional flow control accessories allow for independent regulation of cylinder speed in both directions.
Robust Construction: Available in brass or stainless steel body materials to suit different media and environmental demands.
Specifications
| Attribute | Specification |
|---|---|
| Valve Function | 4-way, 4/2 (2-position) |
| Actuation Type | Solenoid, Direct-Acting |
| Body Material | Brass or Stainless Steel |
| Media | Air, Inert Gas, Light Oil, Water |
| Pipe / Port Size | 1/4″; 3/8″ |
| Port Type | NPTF |
| Flow Coefficient | 0.05 – 0.1 Cv / 0.43 – 0.86 Kv |
| Operating Pressure | 0 – 9 bar |
| Fluid Temperature | -20°C to +70°C |
| Viscosity | Up to 65 cSt (mm²/s) |
| Response Time | 20 – 40 ms |
| Voltage Options | Wide range available including 12/24/48/125/250 V DC and 110/115/120/230/480 V AC (50/60 Hz) |
| Electrical Connection | Spoon Terminals (per ISO 4400), M20 Gland, or 1/2″ NPT Conduit |
| Coil Insulation Class | Class F |
| Standards / Approvals | CSA, UL; NEMA Enclosures Type 1, 2, 3, 3S, 4, 4X, 6, 6P, 7, 9 |
| Operating Environment | Indoor, Outdoor |
If you have any questions about specifications or need assistance selecting the right ASCO™ 342 valve for your application, please contact the Kateteco sales team.
Imported brand The product styles are rich anddiverse Professiona quality and service

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.
With full lifecycle services covering installation, commissioning, operation, maintenance, and replacement, we deliver a true one-stop service system. This allows our customers to enjoy seamless, efficient, and high-quality assurance, supporting enterprises in achieving stable operation and continuous upgrades.


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Sales Specialist in Valves, Imported Control Valves & Brand-Name Positioners.



