MAC VALVES 6321D-551-PM-121DA

MAC 6300 Series Pneumatic Solenoid Valve

Description

This is a MAC model 6321D-551-PM-121DA, a 5-port, 2-position (5/2-way) double solenoid valve. It is part of the highly reliable 6300 series, renowned for its patented balanced poppet design that ensures high flow, fast response times, and a long service life. This valve is designed for inline mounting and is suitable for a wide range of industrial pneumatic applications.

Specifications

• Manufacturer: MAC Valves
• Model: 6321D-551-PM-121DA
• Series: 6300
• Function: 5/2-way, Double Solenoid, Spring Return
• Operating Voltage: 240V/60Hz, 220V/50Hz
• Power Consumption: 6.5 Watts
• Main Valve Pressure Range: Vacuum to 150 PSI
• Pilot Valve Pressure Range: 25 to 150 PSI
• Pilot Model: PME-121DA
• Manual Operator: Locking Type

Label Info

• Model: 6321D-551-PM-121DA
• Repl. Unit: 6321D-000-PM-121DA

Application

Ideal for controlling pneumatic cylinders, actuators, and other air-powered devices in automated machinery, sorting systems, packaging lines, and general industrial environments where reliability is critical.

Country of Origin

Made in USA / Global Components.

CO2 Impact

Opting for this pre-owned valve saves an estimated 26 kg of CO2 compared to manufacturing a new one. This is equivalent to driving a car for approximately 130 kilometers.

Availability

This item is in stock and ready for immediate dispatch. Order now from spareparts2day for expert support and fast delivery.

FAQ

What is the function of the balanced poppet design in this MAC valve?

The balanced poppet design allows for high flow rates and fast response times. It ensures consistent shifting forces that are independent of pressure fluctuations, which leads to a long and repeatable service life with minimal wear.

Can this valve be used with lubricated air?

Yes, MAC valves are designed to operate with or without lubrication in the compressed air line. If lubrication is used, it should be non-detergent and of a medium aniline point (500-1000 SSU at 100 deg F).

What do the manual operators on the PME-121DA pilots do?

The manual operators are of the locking type. They allow you to manually shift the valve spool for testing or machine setup without needing to apply electrical power. The ‘lock’ feature keeps the valve in the shifted position until it is manually unlocked.

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Last Update: March 13, 2026