BSP / NPTF Fittings
BSP / NPTF Fittings products from the customer catalogue.
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BSP and NPTF Thread Identification Guide
BSP and NPTF threads can look similar but must not be mixed. Identify parallel or tapered form, thread pitch, outside diameter and sealing face before choosing the fitting.
| Selection point | What to verify | Purpose |
|---|
| BSPP | Parallel thread; sealing often uses a bonded seal or cone | Confirm G thread and sealing face |
|---|
| BSPT | Tapered 55 degree thread form | Sealant use depends on the approved assembly procedure |
|---|
| NPTF | Tapered 60 degree dryseal thread form | Do not identify only by outside diameter |
|---|
Technical Questions
Are BSPT and NPTF interchangeable?
No. They use different thread angles and pitches. Forced assembly can damage threads and cause leakage.
How can a workshop identify an unknown thread?
Measure major diameter and pitch with calipers and a thread gauge, then confirm taper and sealing face against a chart.
Which details should be sent by photo?
Provide clear photos of the thread and seat, caliper readings, machine connection, hose size and working pressure.
Indonesia local service: our Surabaya team supports hose and fitting identification, quotation preparation and assembly planning. Send the medium, size, pressure, temperature, end connections, length and quantity for review.
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