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Description
Technical data for the NPT 1/2 die
| Technical data | ||
|---|---|---|
| Nominal diameter d1 inches/mm | NPT 1/2 inch | 20.95 mm |
| Thread pitch P inches/mm | 14 threads per inch | 1.81 mm |
| Outside diameter d2 | 45 mm | |
| Thickness h1 | 18 mm | |
| Number of chip clearance holes | 6 | |
| Required shaft diameter | 20.71mm | |
| Thread angle G | 60° | |
| Thread standard | ANSI/ASME B1.20.1 DIN 24230 | |
Die NPT 1/2-14 HSS – taper threading die for professional pipe threading
The NPT 1/2 die is a professional tool for cutting external taper pipe threads with a diameter of 1/2 inch and a pitch of 14 threads per inch. Made of high-speed steel (HSS) in accordance with DIN 24230 and ANSI/ASME B1.20.1, it provides precise pipe threading in demanding industrial installations.
Key advantages of the NPT pipe threading die
- Self-sealing connections without gaskets – a taper of 1:16 and a thread angle of 60° ensure leak-tightness in pressure systems up to 700 bar
- Versatile use in hydraulic power applications – ideal for oil systems, control systems, and industrial cylinders
- Reliability in pneumatic and gas systems – proven in compressed air, nitrogen, and industrial gas networks
- HSS steel durability – enables machining of carbon steels, copper, and brass with tensile strengths up to 800 MPa
- Compliance with DIN 24230 and ANSI/ASME B1.20.1 – guarantees interchangeability with American piping systems
The NPT 1/2 taper threading die is used in hydraulic power service centers, installation workshops, manufacturing plants, and the assembly of pneumatic systems. The NPT inch taper thread is standard in American industry and is increasingly used in European high-pressure installations.
This tool for hydraulic threads is chosen by professional plumbers and installers who value reliable sealing without additional materials. Order the NPT 1/2 die and cut threads that meet the most demanding requirements of industrial installations.
Frequently asked questions
The tool is suitable for hydraulic power systems up to 700 bar, pneumatic systems, and gas installations. The tapered design ensures leak-tight connections.
NPT has a thread angle of 60° in accordance with the American standard. BSPT has an angle of 55° and is not compatible with it.
The NPT taper thread seals through thread interference. PTFE tape or sealing compound is used for greater reliability.
Product accessories
Machine tap NPT 1/2-14 DIN 374 C HSSE
Reference: 0000006496 In stock < 10 items
€84.21
€103.58 brutto
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Shipping
All orders are delivered by courier company GLS. For orders exceeding 369 PLN gross shipping is FREE
| Courier GLS | Przelew24 / Prepayment | 14,76 zł gross | Delivery time 1 working day |
| Courier GLS | Cash on delivery | 17,26 zł gross | Lead time 1 working day |
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