What Are the Common Hole Sizes on Air Receiver Tanks?

Introduction — Why Hole Sizes Matter

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.

Common Hole Sizes and Their Typical Uses

Here’s a simple guide to common port sizes you’ll see on air receiver tanks:

🔹 1. 1/4″ NPT

📍 For: Pressure gauges, small sensors
📌 Small but essential for monitoring

🔹 2. 3/8″ NPT

📍 For: Drain valves, temperature probes, small fittings
📌 Slightly larger than 1/4″, commonly used

🔹 3. 1/2″ NPT

📍 For: Larger drains, solenoid valves, instrumentation
📌 Very common size

🔹 4. 3/4″ – 1″ NPT

📍 For: Main inlet/outlet, fittings to compressors, accessories
📌 These are the primary connection ports for airflow

Custom Hole Options

Of course, many systems require special sizes or placements. YCZX supports:
✔ Customized port sizes
✔ Additional threaded holes
✔ Special flange mountings

Practical Tips

✔ 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.