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WHERE TO BUY


Prices vary for API (American Petroleum Institute) gages. Click on the buttons below for more information.

Contact GSG for Pricing See Product Specifications Services Offered for API Gages



Services Offered:

MANUFACTURING
  • To API Spec Q1, Spec 5B, 7 &11B.
  • CNC Grinding Equipment
  • Special requests Welcome
CALIBRATION
  • Licensed by API
  • State of the art Lab
  • Lab Equipment Modified for API Gages
ENGINEERING
  • Industry Experts
  • Design and Build

Products:
  • Casing
  • Line Pipe
  • Rotary Connections
  • Sucker Rods
  • Tapered Gages
  • Tubing
  • Thread Profile
Specifications/Applications:


Nominal

Size



Specifications/Applications

From

To

TPI

TPF

Spec 5B (Plug/Ring)





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
4
3 1/2
4 1/2
10
8
3/4
3/4

Tubing - External Upset

1.050
2 3/8
1.900
4 1/2
10
8
3/4
3/4

Tubing - Integral Joint

2 3/8

4 1/2

8

3/4

Extreme Line Casing

5
8 5/8
7 5/8
10 3/4
6
5
1 1/2
1 1/4

Spec 7 (Plug/Ring)





NC Connections

NC 10
NC 23
NC 56
NC 16
NC 50
NC 77
6
4
4
1 1/2
2
3
Regular
Full Hole
1
3 1/2
8 5/8
6 5/8
4-6
4-5
1 1/2, 2, 3
2, 3
Internal Flush

2 3/8

5 1/2

4

2

Other Oil Field Related Connections (Plug/Ring)





H-90

2 3/8

8 5/8

3-3 1/2

1 1/4, 2, 3

Slim Hole

2 3/8


4

2

Extra Hole

2 7/8

5

4

2

Wide Open

2 3/8


4

2

AOH

2 3/8

4 1/2

4

1 1/2

PAC

2 3/8

3 1/2

4

1 1/2

XHole

2 7/8

3 1/2

4

2

Spec 11B





Sucker Rods B1 to B6

1/2

1 1/8

10


Sucker Rods P1 to P8

1/2

1 1/8

10


Specials





Mining: BECO, DI-22, DI-42





American National Special Threads





Tapered Thread Gages - AWWA





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