licationExampesDataAppli/llAB456EF555HP—— AppcationExampesData■NS threads (Male) ■NPT threads●NPT threads receive the load not only on the threaded portion but also on the threaded end surface.Unit (mm)■NS threads (Female thread) AngleFemaleExternal diameterPitch diameter60°Minor diameterRootUnit (mm)ϕ G23.502926.6539.023742.0957.804360.50JIS designationR1/4Rc1/4R3/8Rc3/8R1/2Rc1/2R3/4Rc3/4R1Rc1G1/2M14 x 1.5M22 x 1.5No.79E since2025Details of Special ThreadsTightening Torques of Tapered and Parallel Pipe ThreadsUnit (mm)For 200 kN3 5/16-12NSAngle84.1482.7660°81.851.15Unit (mm)H = 0.87Ph = 0.8P1.571.451.921.77DataFor 40 kN1 1/2-16NSMaleExternal diameter38.1Pitch diameter37.06Minor diameter36.15Crest0.98For 40 kN3/4-14NPTFor 100 kN1 1/4-11.5NPTFor 200 kN2-11.5NPT●All tapered pipe threads and parallel pipe threads are shown with the JIS designation in this catalogue.Old designationPT1/4 (Male) PT1/4 (Female) PT3/8 (Male) PT3/8 (Female) PT1/2 (Male) PT1/2 (Female) PT3/4 (Male) PT3/4 (Female) PT1 (Male) PT1 (Female) PF1/2For 100 kN2 1/4-14NSFor 200 kN3 5/16-12NS57.1584.1455.9782.7654.9281.541.111.30ϕ Cϕ D212625412760For 40 kN1 1/2-16NSFor 100 kN2 1/4-14NS38.157.1537.0655.9736.3855.180.860.9814 threads1.811°47’11.5 threads2.21Tightening torqueN•m59 to 7179 to 98118 to 142196 to 235294 to 35339 to 5960 to 80100 to 120222
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