Overview
The ASCO 8345G1 Red Hat II solenoid valve is a compact, low-flow pilot-operated valve engineered for reliable on-off control in general service applications. As a product of Automatic Switch Company (now part of the Emerson/ASCO family), this brass-bodied 4-way valve is widely used in pneumatic and hydraulic systems across manufacturing, process control, and industrial automation.
Key Features
- 4-way solenoid valve for precise directional control
- Pilot-operated design for efficient operation across pressure range
- Operating pressure range: 10 to 150 psi (6.9 to 10.3 bar)
- 1/4″ NPT port connections for standard fluid lines
- Watertight solenoid enclosure (UL-listed coil)
- Brass body construction with NBR seals for durability
- Mountable in any position without performance degradation
- Maximum fluid temperature rating: 180°F (82°C)
- Power consumption: 10.1 watts
Technical Specifications
- Manufacturer: ASCO (Automatic Switch Company)
- Series: Red Hat II 8345
- Part Number: 8345G1
- Configuration: 4-way, 2-position directional control valve
- Solenoid Type: Single (pilot-operated)
- Port Size: 1/4″ NPT (female)
- Body Material: Brass
- Seal Material: Nitrile Rubber (NBR)
- Operating Pressure: 10–150 psi (0.7–10.3 bar)
- Minimum Pressure Differential: Required between exhaust and pressure ports
- Flow Rate: Low-flow design for pilot-operated systems
- Coil Wattage: 10.1 watts
- Coil Enclosure: Watertight (standard), UL/CSA listed
- Maximum Fluid Temperature: 180°F (82°C)
- Orientation: Mountable in any position
- Rebuild Kit: 314453
Typical Applications
- Pneumatic actuator control (cylinders, motors)
- Hydraulic directional control circuits
- Industrial automation and process control
- Machine tool fluid distribution
- Air compressor and pump regulation
- General service on-off switching for air and inert gases
- OEM equipment and light industrial systems
Compatibility & Replacements
Compatible With
- Pneumatic and hydraulic actuation systems
- 1/4″ NPT piping and manifold systems
- 24 VAC, 120 VAC, or DC solenoid coil options (select variant)
- Compressed air and inert gas media (10–150 psi)
- Light oils and water-resistant applications
Replaces / Drop-In Replacement For
- Earlier ASCO 8345 series models (8345G001)
- OEM solenoid valve stations requiring 1/4″ NPT 4-way directional control
- General-duty pilot-operated directional control valve applications
Works With
- Standard 1/4″ NPT industrial manifolds and valve blocks
- Pressure gauges and switch cartridges rated for 10–150 psi
- ASCO solenoid rebuild kits (part 314453)
- Pilot-operated valve control systems and proportional logic circuits
