For tapered pipe fittings PTFE tape or thread sealant should be applied for sealing. Installation steps are as follows.
Step 1: Clean both male and female thread. Remove all the dirt or residual tape.
Step 2: Wrap the thread PTFE tape starting from the first full thread in the direction of thread. 2-4 revolutions of high-quality tape are sufficient. Caution: The tape should not exceed the first full thread as the excess tape may be shredded and get into the fluid system.
Step 3: Cut the end of the tape off or tear it apart. Press the tape into the thread n the direction of thread spiral.
Step 4: Finger tight first. Then use a torque wrench to tighten up. Keep the right direction in order to avoid damaging the thread (refer to the suggested torque in the table below.)
|Tapered Thread Size||Initial Installation Torque (N.m)||Max Installation Torque (N.m)|
- Always use appropriate thread sealant with tapered threads.
- Do not mix NPT and BSPT threads.
- Parallel threads seal with a gasket or O-ring. Never with tape.
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