The seamless casing pipe coupling is used to connect two threaded seamless casing pipe pipes and has a cylindrical body with internal threads. The applicable specifications of the plug gauge for seamless casing pipe coupling inspection are tubing TBG, UP TBG2 3/8-4 1/2, etc., casing slant thread BCSG4 1/2-20 inches, casing round thread CSG4 1/ 2-20 inches and so on.
Plug gauges of various specifications are designed and manufactured in accordance with API standards. The advantages are simple operation, improved work efficiency for users, and reduced labor intensity of operators.
Executive standard: API SPEC 5CT, API SPEC 5B, ISO 11960:2004
Specification range: 127~365.12mm (4 1/2"~13 3/8")
Thread type: short circle (STC), long circle (LC), partial trapezoid (BC)
Suitable for pipe material: H40, J55, K55, M65, N80-1, N80Q, L80, C95, T95, P110
The plate gauge is suitable for tubing coupling: (NU, EU) steel grade: J55, N80, L80, P110 Specifications: 1.9", 2-3/8", 2-7/8", 3-1/2", 4", 4-1/2".