What is the difference between NPT NPTF screws?
Information
NPT = American standard taper screw for general pipe ・NPTF = American standard taper screw for dry seal pipe
The difference between the two types is the use for densification resistance!
When sealing resistance is required, ・NPT→Need sealant ・NPTF→ Not need sealant
Why is NPTF sealant-free? →Because of the special threads that ensure tightness resistance. Even when piping is so hot that the sealant melts, NPTF can be used without the need for sealant.
*NPT and NPTF have different thread profiles, so sharing tools for thread processing is prohibited.
Contact Izutsu Seisakusho Co., Ltd. for special pipe fittings.
If you are unsure how to install a hose and hexagonal hose," "We have a product on hand, but we don't know the size because it is discontinued," or "It is an old product and we don't know how to install it," we are ready to help. We will draw up a drawing and make a proposal to provide the product you require. Please feel free to contact us.
Sales: Yukiyasu Izutsu E-mail: yukiyasu@izutsu-ss.co.jp Technical: Kazuhiro Omura E-mail: oomura@izutsu-ss.co.jp
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