Castair CLB1414 — 1/4" x 1/4" Inline Check Valve, NPT Female Inlet/Outlet
The CLB1414 is a 1/4-inch by 1/4-inch NPT female inline check valve from Castair. It is the smallest unit in the Castair CLB series, built for low-flow control lines, pilot air circuits, and light-duty compressed air drops where a compact check valve with standard NPT threads is needed to prevent backflow.
Female NPT connections on both ends thread directly onto standard 1/4-inch male fittings or nipples. The inline body keeps installation straightforward — no angled ports, no special orientation required beyond ensuring the flow direction arrow (if marked) matches the intended airflow direction.
What This Unit Does
- One-Way Flow Control: Passes air in the intended direction, closes on backpressure. Used in control circuits, pilot lines, and small-diameter drops where reverse flow would cause problems.
- 1/4" NPT Female Both Ends: Standard threads — fits 1/4-inch NPT male nipples, fittings, and quick-connect bodies.
- Compact Inline Body: Small form factor — fits in tight installations where larger check valves would not clear the surrounding pipe and fittings.
Castair Inline Check Valve Lineup (CLB Series)
- CLB1414 (1/4" x 1/4"): NPT Female — control lines, pilot air, light-duty drops
- CLB1212 (1/2" x 1/2"): NPT Female — garage and small shop
- CLB3434 (3/4" x 3/4"): NPT Female — mid-size commercial
- CLB1010 (1" x 1"): NPT Female — large main lines
- CLB112112 (1-1/2" x 1-1/2"): NPT Female — industrial high-volume
Technical Specifications
- Part Number: CLB1414
- Inlet Size: 1/4" NPT Female
- Outlet Size: 1/4" NPT Female
- Body Style: Inline — straight-through
- Connection Type: NPT Female both ends
- Series: CLB Inline Check Valve
- Manufacturer: Castair, Spicer, Minnesota
Why Buy From Air Compressor Factory Direct?
We have sold Castair air system components since 2016. Call 866-217-0063 to confirm the right check valve size for your installation. Free shipping on qualifying orders, full manufacturer warranty, free technical support.
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