Overview
The Boston Gear EK71DA00 is a pneumatic directional control valve engineered to reliably manage air flow and direction in pneumatic cylinder and motor applications. Part of Boston Gear’s proven EK Series, this valve combines compact aluminum construction with rugged solenoid actuation for stable, repeatable performance across diverse industrial environments.
Key Features
- Aluminum spool assembly: Lightweight, one-piece design reduces weight while maintaining structural integrity
- Low-friction seals: Elastomer-lip seals ensure trouble-free operation with minimal maintenance
- Solenoid actuation: Responsive electromagnetic operators for precise directional control
- 4-way, 2-position configuration: Enables double-acting cylinder extend/retract cycles
- Port identification: Clear labeling simplifies installation and integration
- Shock-absorbent bumpers: Protect internal components during actuation cycles
Technical Specifications
| Manufacturer | Boston Gear / ALTRA Industrial Motion |
| Model Number | EK71DA00 |
| Valve Type | Pneumatic Directional Control (4-Way, 2-Position) |
| Port Size | 1/4″ NPT |
| Maximum Pressure | 150 PSIG |
| Actuation Method | Solenoid-operated, normally de-energized |
| Spool Material | Aluminum with elastomer seals |
| Configuration | 2-position solenoid, ported body |
| Applications | Pneumatic cylinders, air motors, industrial automation |
| Dimensions | Approximately 9″ × 6.75″ × 6.75″ |
Typical Applications
The EK71DA00 is widely deployed in:
- Double-acting pneumatic cylinder control in manufacturing equipment
- Automated assembly line direction control
- Pneumatic motor speed and direction management
- Industrial process automation requiring precise air flow switching
- OEM equipment where reliable valve performance is critical
Compatibility & Replacements
Compatible With
- Standard pneumatic cylinder networks (single and double-acting)
- Pneumatic air motor systems
- Industrial compressed air systems rated 0–150 PSIG
- Standard 24 VDC and 120 VAC solenoid control circuits
- ISO 1219-1 pneumatic schematic standards
Replaces / Drop-In Replacement For
The EK71DA00 is the standard directional control configuration in the Boston Gear EK series. Verify specific compatibility with variant part suffixes (e.g., EK71DA00-KS6-KF0, EK71DA00-K32-K32, EK71DA00-KC0-KT1) which may include different solenoid or operator modules. Consult your system integrator or the original equipment documentation before specifying a direct replacement.
Works With
- Pneumatic solenoid coils (24 VDC, 120 VAC, 220-240 VAC options available with variant configurations)
- Standard industrial pneumatic tubing and fittings (1/4″ NPT ports)
- PLC and relay-based control systems for solenoid actuation
- Manual operator override systems in variant configurations
