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MAC Valves Inc 55B-11-PI-421BAAD 3-Way Pneumatic Solenoid Valve
- Regular price
- $747.00
- Sale price
- $747.00
- Regular price
-
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Product Description P/N: 55B-11-PI-421BAAD
Description
The MAC Valves Inc. 55B-11-PI-421BAAD is a three-way pneumatic solenoid valve designed to control compressed-air flow in industrial automation systems. It features a 1/4-inch NPTF port connection, an internally piloted configuration, and normally closed operation. Its solenoid-actuated design makes it suitable for controlling pneumatic actuators and other air-operated equipment.
Technical Specifications
| Condition | New/Never Used Surplus |
| Brand | MAC Valves Inc. |
| Category | Pneumatic Equipment |
| Part Number | 55B-11-PI-421BAAD |
| Subcategory | Pneumatic Solenoid Valves |
| Product Series | 55 |
| Product Type | 3-Way Pneumatic Solenoid Valve |
| Valve Function | Normally Closed (NC) |
| Port Size | 1/4-inch NPTF |
| Pilot Configuration | Internal pilot air |
| Coil Voltage | 120 V AC, 60 Hz / 110 V AC, 50 Hz (supplier-listed) |
| Operating Pressure | 30–150 PSI for internal-pilot configuration |
| Maximum Flow Coefficient | Series maximum 2.2 Cv; exact NC configuration may differ |
| Operating Temperature | −18 to +50 °C (supplier-listed) |
| Electrical Connection | BAAD operator configuration; verify connector and lead details |
| Weight | 0.72 lb |
Information About 55B-11-PI-421BAAD
The 55B-11-PI-421BAAD belongs to MAC Valves' Series 55 range of direct-solenoid and solenoid-pilot-operated valves. The 55B-11 configuration corresponds to a 1/4-inch port size, while PI indicates an internal pilot-air arrangement. The valve uses a normally closed three-way configuration, allowing it to control air supply and exhaust in compatible pneumatic circuits. Supplier listings associate the PID-421BAAD operator with 120 V AC at 60 Hz or 110 V AC at 50 Hz; confirm the coil label before connecting electrical power.
Key Features:
-
Three-Way Valve: Controls supply, outlet, and exhaust paths in pneumatic circuits.
-
Normally Closed Operation: Keeps the supply path closed in the de-energized state.
-
1/4-Inch NPTF Ports: Provides threaded connections for compatible pneumatic fittings.
-
Internal Pilot Air: Uses internally supplied pilot pressure to operate the main valve.
-
AC Solenoid Operator: Supplier-listed for 120 V AC, 60 Hz / 110 V AC, 50 Hz.
-
Series 55 Design: Features MAC's balanced-spool valve design for consistent shifting.
-
Industrial Pneumatic Control: Suitable for compatible cylinders, actuators, and automated machinery.
-
Replacement Compatibility: Exact coil, porting, and valve configuration should match the existing installation.
The 55B-11-PI-421BAAD delivers pneumatic flow-control functionality for compatible industrial automation and actuator-control systems.
Description
The MAC Valves Inc. 55B-11-PI-421BAAD is a three-way pneumatic solenoid valve designed to control compressed-air flow in industrial automation systems. It features a 1/4-inch NPTF port connection, an internally piloted configuration, and normally closed operation. Its solenoid-actuated design makes it suitable for controlling pneumatic actuators and other air-operated equipment.
Technical Specifications
| Condition | New/Never Used Surplus |
| Brand | MAC Valves Inc. |
| Category | Pneumatic Equipment |
| Part Number | 55B-11-PI-421BAAD |
| Subcategory | Pneumatic Solenoid Valves |
| Product Series | 55 |
| Product Type | 3-Way Pneumatic Solenoid Valve |
| Valve Function | Normally Closed (NC) |
| Port Size | 1/4-inch NPTF |
| Pilot Configuration | Internal pilot air |
| Coil Voltage | 120 V AC, 60 Hz / 110 V AC, 50 Hz (supplier-listed) |
| Operating Pressure | 30–150 PSI for internal-pilot configuration |
| Maximum Flow Coefficient | Series maximum 2.2 Cv; exact NC configuration may differ |
| Operating Temperature | −18 to +50 °C (supplier-listed) |
| Electrical Connection | BAAD operator configuration; verify connector and lead details |
| Weight | 0.72 lb |
Information About 55B-11-PI-421BAAD
The 55B-11-PI-421BAAD belongs to MAC Valves' Series 55 range of direct-solenoid and solenoid-pilot-operated valves. The 55B-11 configuration corresponds to a 1/4-inch port size, while PI indicates an internal pilot-air arrangement. The valve uses a normally closed three-way configuration, allowing it to control air supply and exhaust in compatible pneumatic circuits. Supplier listings associate the PID-421BAAD operator with 120 V AC at 60 Hz or 110 V AC at 50 Hz; confirm the coil label before connecting electrical power.
Key Features:
-
Three-Way Valve: Controls supply, outlet, and exhaust paths in pneumatic circuits.
-
Normally Closed Operation: Keeps the supply path closed in the de-energized state.
-
1/4-Inch NPTF Ports: Provides threaded connections for compatible pneumatic fittings.
-
Internal Pilot Air: Uses internally supplied pilot pressure to operate the main valve.
-
AC Solenoid Operator: Supplier-listed for 120 V AC, 60 Hz / 110 V AC, 50 Hz.
-
Series 55 Design: Features MAC's balanced-spool valve design for consistent shifting.
-
Industrial Pneumatic Control: Suitable for compatible cylinders, actuators, and automated machinery.
-
Replacement Compatibility: Exact coil, porting, and valve configuration should match the existing installation.
The 55B-11-PI-421BAAD delivers pneumatic flow-control functionality for compatible industrial automation and actuator-control systems.
