Air receiver tanks are designed with various ports (holes) for connections, gauges, valves, and accessories. Getting hole sizes right ensures compatibility and performance. YCZX has rich experience producing custom tanks with precise hole specifications.
Here's a simple guide to common port sizes you'll see on air receiver tanks:
For: Pressure gauges, small sensors
Small but essential for monitoring
For: Drain valves, temperature probes, small fittings
Slightly larger than 1/4″, commonly used
For: Larger drains, solenoid valves, instrumentation
Very common size
For: Main inlet/outlet, fittings to compressors, accessories
These are the primary connection ports for airflow



Of course, many systems require special sizes or placements. YCZX supports:
Customized port sizes
Additional threaded holes
Special flange mountings
Always match your fittings to the port size.
Check thread type (NPT vs BSP) before ordering.
When in doubt, contact your manufacturer with a diagram.