The threaded connection
** Cylindrical pipe thread** As standard, our valves with threaded connection have a cylindrical Whitworth pipe thread DIN/ISO 228.
- Short code: G
- Nomenclature: G1/8, G1/4, G1/2, G3/4, G1 etc.
Sealing
The connection can be sealed by pressing two sealing surfaces against each other outside the threads and by inserting a suitable seal between them.
** Pipe thread tapered** As an option, we offer our valves with tapered internal threads in accordance with ANSI / ASME B 1.20.1.
- Abbreviation: NPT
- Nomenclature: 1/2 ‘NPT, 3/4 “NPT, 1 ”NPT etc.
The NPT thread is a tapered or conical pipe thread. Both the internal and external threads are tapered. The thread flanks are sealed by applying a suitable sealant to the external screw connection.
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Thread
Thread types