Dalipu npt thread sizes valve npt female thread male ball valve
Product Quick Detail
- FOB Price
- USD $5.00 / Piece
- Place Of Origin
- tianjin
- Minimum Order
- 1
- Packaging
- By carton, wooden case, wooden pallet, or by requirements of customer.
- Delivery
- 15 Days
Specifications
The taper on NPT threads allows them to form a seal when torqued as the flanks of the threads compress against each other, as opposed to parallel/straight thread fittings or compression fittings in which the threads merely hold the pieces together and do not provide the seal. As the thread body is tapered (0.75 in/ft or 62.5 mm/m) a larger diameter keeps compressing into a smaller diameter and finally forms a seal (no clearance remains between the crests and roots of the threads because of the taper). This means that NPT fittings should be burr-free and lubricated using a lubricating material like lubricating paste or tape. The use of tape also helps to limit corrosion on the threads, which otherwise can make future disassembly nearly impossible.
Commonly used sizes are 1⁄8, 1⁄4, 3⁄8, 1⁄2, 3⁄4, 1, 1 1⁄4, 1 1⁄2, and 2 inch.
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- Contact:harry li
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