Thread Gauge

  • All thread inspection after production.
  • All thread gauges will be supplied with Calibration Certificate.
  • 100 % customer satisfaction for Quality and Reliability.
  • Suitable for many kinds of thread and pipes.
  • Good package suitable for international transportation.
  • Fast lead time and sometimes some commonly used thread may be in stock.

Description

Thread Gauge

API Thread Gauges are used for gaging API internal & external threads, manufactured according to API 5B, API 7-2 & API 11B standard, including working gages and master gages.

API working thread gauges include plug gauge and ring gauge. All of our working gauges will be inspected by master gauges after production and corresponding Calibration Certificate will be provided together with thread gauges or separately couriered as clients’ request.

Our thread gauges are mostly used to inspect thread of tubing, casing, drill pipe, drill collar, line pipe, sucker rod & polished rod, etc.

The thread type includes: EUE/UPTBG, NUE/TBG, BTC/BCSG, STC/CSG, LTC/LCSG, REG, IF, FH, NC, LP, NPT, etc.

Techanical Specification

Size Range: 2-3/8 ~ 20 in

Thread: BTC, STC, LTC, EUE, NUE, NC, IF, FH, REG, PH-6, XT, HT-PAC, etc.

Type: Heavy Duty or light

Material: HDPE, steel, steel-plastic

Color: Customized

Application: To protect the thread and connection of casing, tubing, drill pipe during transportation and loading and unloading

 

API Spec 5B (Plug Gauge & Ring Gauge)
Normal Size Thread
Applications From To TPI TPF
Casing – Round 4 1/2 13 3/8 8 3/4
Line Pipe 1/8 13 3/8 8-27 3/4
Tubing – Non Upset 1.050 3 1/2 10 3/4
4 4 1/2 8 3/4
Tubing – External Upset 1.050 1.900 10 3/4
2 3/8 4 1/2 8 3/4
Tubing – Integral Joint 2 3/8 4 1/2 10 3/4
Extreme Line Casing 5 7 5/8 6 1 1/2
8 5/8 10 3/4 8 1 1/4

 

API Spec 7-2 (Plug Gauge & Ring Gauge)
Normal Size Thread
Applications From To TPI TPF
NC Connections NC 10 NC 16 6 1 1/2
NC 23 NC 50 4 2
NC 56 NC 77 4 3
REG (Regular Rotary Shoulder Connections) 1 8 5/8 14-6 1 1/2, 2, 3
FH (Full Hole) 3 1/2 6 5/8 4-5 2, 3
IF (Internal Flush) 2 3/8 5 1/2 2 2

 

API Spec 11B
Normal Size Thread
Applications From To TPI
Sucker Rods P2-P8 & B2-B6 1/2 1 1/8 10
Sucker Rods P1-P8 & B1-B6 1/2 1 1/8 10

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