Product Overview
The MAC 45A-AC2-DDFJ-4JD is a high-performance pneumatic solenoid valve manufactured by MAC Valves, a globally recognized leader in air valve technology. This 4-way directional control valve utilizes a balanced poppet design, delivering rapid, repeatable actuation with minimal friction and no sticking, even after extended periods of inactivity. Engineered for demanding industrial automation and process control systems, the 45A series valve provides precise directional control of compressed air to cylinders, actuators, and other pneumatic devices. Its robust construction and high cycle life make it an ideal choice for continuous-duty applications requiring reliable, high-speed response and consistent flow characteristics.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Pneumatic Solenoid Valve (4-Way Directional Control) |
| Model Designation | 45A-AC2-DDFJ-4JD |
| Operating Pressure | Standard Industrial Grade (Up to 150 PSI / 10 bar) |
| Mounting & Connection | Standard MAC Interface / Sub-base Mounting |
| Valve Function | 4-Way, 2-Position / 3-Position (Spring Return / Double Solenoid) |
| Actuation Type | Solenoid Pilot Actuated |
| Flow Rate | High Flow (Cv up to 1.0 typical for 45A series) |
| Port Size | 1/4″ NPTF / BSPP (Standard Industrial) |
| Voltage | AC / DC Coil Options Available (Standard MAC Coil) |
| Seal Material | Nitrile / Buna-N (Standard), Optional Viton |
Engineering Features & Advantages
- Precision Performance: The balanced poppet design ensures consistent, high-speed actuation with minimal wear, providing precise directional control and rapid response times for critical pneumatic circuits.
- Industrial Reliability: Built for continuous operation under severe industrial conditions, the MAC 45A series offers exceptional cycle life and resistance to contamination, reducing downtime and maintenance costs.
- Direct Fit Replacement: Exact dimensional and functional compatibility with original OEM standards, ensuring seamless integration into existing MAC valve manifolds and pneumatic systems.
- Versatile Configuration: Available in 2-position and 3-position configurations with spring return or double solenoid options, accommodating a wide range of control logic requirements.
- Direct Fit Replacement: Exact dimensional and functional compatibility with original MAC standards, allowing straightforward retrofit into existing hydraulic systems without rework.
Typical Industrial Applications
Its robust construction and high cycle life make it an ideal choice for continuous-duty applications requiring reliable, high-speed response and consistent flow characteristics.
PRODUCT IMAGES



MAC 45A-AC2-DDFJ-4JD Pneumatic Solenoid Valve
âš¡ Emergency Plant Maintenance & Ready-to-Ship Notice:
- Authentic & Fully Tested: 100% bench tested for hydraulic response, pressure rating, and null-bias stability before dispatch.
- Fast Dispatch: In-stock units ready for same-day dispatch via DHL / FedEx Express directly to your plant.
- Pre-Shipment Verification: High-definition photos, video testing runs, and serial number verification provided prior to shipment.
- Peace of Mind: Covered by our 12-Month Replacement Warranty.
Shop the genuine MAC 45A-AC2-DDFJ-4JD Solenoid Directional Valve. This USA-made 24V DC hydraulic component features a 4-way, 2-position spool design, delivering leak-free, reliable fluid control for heavy-duty industrial systems.