AirTAC 2KL Series: Internally Piloted Normally Open (NO) Valve

The AirTAC 2KL Series is a specialized 2/2-way internally piloted diaphragm solenoid valve designed for systems that must remain Open by default. Unlike the standard 2L series, the 2KL allows fluid to flow freely when the coil is de-energized. When power is applied, the pilot mechanism forces the diaphragm down to seal the orifice and stop the flow.

Constructed with a heavy-duty brass body, the 2KL is ideal for safety "fail-open" systems, cooling loops, and irrigation circuits where constant flow is the priority and interruption is only required occasionally.

Key Product Features

• Normally Open (NO) Operation: The valve stays open when power is off, making it perfect for applications where a power failure should not stop the fluid flow (e.g., cooling systems).

• High Flow Internally Piloted Structure: Utilizes the pressure of the fluid media itself to assist in opening and closing, allowing it to handle large flow rates with a relatively low-power solenoid coil.

• Forged Brass Body: Provides high mechanical strength and excellent corrosion resistance for water, air, and oil applications.

• Low Starting Pressure: Requires a minimal differential pressure (0.05 MPa) to operate effectively, ensuring reliable performance in pressurized lines.

• Flexible Installation: Can be mounted in any orientation, though installing with the coil facing upward is recommended to prevent sediment buildup in the pilot chamber.

• Variety of Port Sizes: Available from 3/8" up to 2", providing a wide range of flow capacities to match industrial piping requirements.