API Thread Gauges

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Gauge Type Range
Taper Thread Plug Gauges 1/16 Inch to 20 Inch ( Taper 1:16 to 1:4)
Taper Thread Ring Gauge 1/16 Inch to 20 Inch ( Taper 1:16 to 1:4)
API SPEC 5B GAUGES

KVR International provides specialized thread gauges that are essential for quality control in the oil and gas industry. By manufacturing these gauges to API Spec 5B, the company helps ensure that threaded pipes and connections meet the necessary standards for safety, reliability, and leak-proof performance.

CASING
SIZE T.P.I. T.P.F.
4-1/2* 8 3/4
5* 8 3/4
5-1/2* 8 3/4
6-5/8* 8 3/4
7* 8 3/4
7-5/8* 8 3/4
8-5/8* 8 3/4
9-5/8* 8 3/4
10-3/4 8 3/4
11-3/4 8 3/4
13-3/8 8 3/4
16 8 3/4
18-5/8 8 3/4
20* 8 3/4
BUTTRESS CASING
SIZE T.P.I. T.P.F.
4-1/2 5 3/4
5 5 3/4
5-1/2 5 3/4
5-3/4 5 3/4
6-5/8 5 3/4
7 5 3/4
7-5/8 5 3/4
8-5/8 5 3/4
9-5/8 5 3/4
10-3/4 5 3/4
11-3/4 5 3/4
13-3/8 5 3/4
16 5 1
18-5/8 5 1
20 5 1
UPSET (E.U.E) / NON-UPSET (N.U.E) TUBING
SIZE UPSET T.P.I. NON-UPSET T.P.I. T.P.F.
1.050 10 10 3/4
1.315 10 10 3/4
1.660 10 10 3/4
1.900 10 10 3/4
2-3/8* 8 10 3/4
2-7/8* 8 10 3/4
3-1/2* 8 10 3/4
4* 8 8 3/4
4-1/2* 8 8 3/4
LINE PIPE
SIZE T.P.I. T.P.F.
1/8 27 3/4
1/4 18 3/4
3/8 18 3/4
1/2 14 3/4
3/4 14 3/4
1 11-1/2 3/4
1-1/4 11-1/2 3/4
1-1/2 11-1/2 3/4
2 11-1/2 3/4
2-1/2 8 3/4
3 8 3/4
3-1/2 8 3/4
4 8 3/4
5 8 3/4
6 8 3/4
8 8 3/4
10 8 3/4
12 8 3/4
14 8 3/4
16 8 3/4
18 8 3/4
20 8 3/4
EXTREME LINE CASING
SIZE T.P.I. T.P.F.
5 6 1-1/2
5-1/2 6 1-1/2
6-5/8 6 1-1/2
7 6 1-1/2
7-5/8 6 1-1/2
8-5/8 5 1-1/4
9-5/8 5 1-1/4
10-3/4 5 1-1/4
API SPEC 7-2 GAUGES

KVR International provides specialized thread gauges that are essential for quality control in the oil and gas industry. By manufacturing these gauges to API Spec 7-2, the company helps ensure that threaded pipes and connections meet the necessary standards for safety, reliability, and leak-proof performance.

REGULAR ROTARY
SIZE T.P.I. T.P.F. THD FORM
1 6 1.5 V-0.055
1-1/4 7 2 V-0.020
1-1/2 6 1.5 V-0.055
2-3/8 5 3 V-0.040
2-7/8 5 3 V-0.040
3-1/2 5 3 V-0.040
4-1/2 5 3 V-0.040
5-1/2 4 3 V-0.050
6-5/8 4 2 V-0.050
7-5/8 4 3 V-0.050
8-5/8 4 3 V-0.050
NUMBERED CONNECTIONS (N.C.)
SIZE T.P.I. T.P.F. THD FORM
NC10 6 1-1/2 V-0.055R
NC12 6 1-1/2 V-0.055R
NC13 6 1-1/2 V-0.055R
NC16 6 1-1/2 V-0.055R
NC23 4 2 V-0.038R
NC26 (2-3/8 I.F.) 4 2 V-0.038R
NC31 (2-7/8 I.F.) 4 2 V-0.038R
NC35 4 2 V-0.038R
NC38 (3-1/2 I.F.) 4 2 V-0.038R
NC40 (4 FH) 4 2 V-0.038R
NC44 4 2 V-0.038R
NC46 4 2 V-0.038R
NC50 (4-1/2 IF) (5 XH) 4 2 V-0.038R
NC56 4 3 V-0.038R
NC61 4 3 V-0.038R
NC70 4 3 V-0.038R
NC77 4 3 V-0.038R
INTERNAL FLUSH (I.F.)
SIZE T.P.I. T.P.F. THD FORM
2 4 2 V-0.065
2-3/8 (NC26) 4 2 V-0.065
2-7/8 (NC31) 4 2 V-0.065
3-1/2 (NC38) 4 2 V-0.065
4 (NC46) (4-1/2 XH) 4 2 V-0.065
4-1/2 (NC50) (5 XH) 4 2 V-0.065
5-1/2 4 2 V-0.065
6-5/8 4 2 V-0.065
FULL HOLE (F.H.)
SIZE T.P.I. T.P.F. THD FORM
2-7/8 5 3 V-0.040
3-1/2 5 3 V-0.040
4 (NC40) 4 2 V-0.065
4-1/2 5 3 V-0.040
5-1/2 4 2 V-0.050
6-5/8 4 2 V-0.050

API SPEC 11B GAUGES

KVR International provides specialized thread gauges that are essential for quality control in the oil and gas industry. By manufacturing these gauges to API Spec 11B, the company helps ensure that threaded pipes and connections meet the necessary standards for safety, reliability, and leak-proof performance.

WORKING SUCKER ROD & POLISHED ROD GAUGES
DESCRIPTION SIZE
P-2 GO RING 1/2 5/8 3/4 7/8 1 1-1/8
P-4 RING FOR PIN CONE 1/2 5/8 3/4 7/8 1 1-1/8
P-6 NO GO RING FOR PIN CONE 1/2 5/8 3/4 7/8 1 1-1/8
P-8 GO PIN RING 1/2 5/8 3/4 7/8 1 1-1/8
B-2 GO PLUG 1/2 5/8 3/4 7/8 1 1-1/8
B-4 PLUG 1/2 5/8 3/4 7/8 1 1-1/8
B-6 NO GO PLUG 1/2 5/8 3/4 7/8 1 1-1/8
API SPEC 11AX GAUGES

KVR International provides specialized thread gauges that are essential for quality control in the oil and gas industry. By manufacturing these gauges to API Spec 11AX, the company helps ensure that threaded pipes and connections meet the necessary standards for safety, reliability, and leak-proof performance.

L- THREAD
SIZE T.P.I. T.P.F.
3/8 18 3/4
1/2 14 3/4
3/4 14 3/4
B-THREAD
SIZE T.P.I. T.P.F.
178 11-1/2 3/8
225 11-1/2 3/4
275 11-1/2 3/4

API SPEC 11AX GAUGE

In addition to API-specific products, KVR International also supplies a variety of other gauges

HUGHES H-90
SIZE T.P.I. T.P.F.
2-3/8SL 3 1-1/4
2-7/8SL 3 1-1/4
3-1/2SL 3 1-1/4
3-1/2 3-1/2 2
4 3-1/2 2
4-1/2 3-1/2 2
5 3-1/2 2
5-1/2 3-1/2 2
6-5/8 3-1/2 2
7 3-1/2 3
7-5/8 3-1/2 3
8-5/8 3-1/2 3
AMERICAN OPEN HOLE (A.O.H.)
SIZE T.P.I. T.P.F.
2-3/8 4 1-1/2
2-7/8 4 1-1/2
3-1/2 4 1-1/2
4 4 1-1/2
4-1/2 4 1-1/2
PAC
SIZE T.P.I. T.P.F.
2-3/8 4 1-1/2
2-7/8 4 1-1/2
3-1/2 4 1-1/2
MACARONI TUBING (M.T.)
SIZE T.P.I. T.P.F.
3/4 6 1-1/2
1 (1 REG) 6 1-1/2
1-1/4 6 1-1/2
1-1/2 (1-1/2 REG) 6 1-1/2
2-1/16 6 1-1/2
MAYHEW
SIZE T.P.I. T.P.F.
2-3/8 JR 4 2
2-3/8 REG 4 1-1/2
2-7/8 FH 4 1-1/2
WILSON FLUSH JOINT (W.F.J.)
SIZE T.P.I. T.P.F.
1-13/16 7 2
2-3/8 6 2
BECO
SIZE T.P.I. T.P.F.
3 2 3
3-1/2 2 3
4 2 3
4-1/2 2 3
5-1/4 2 3
6 2 3
7 2 3
8 2 3
10 2 3
API SPEC 11AX GAUGE

In addition to API-specific products, KVR International also supplies a variety of other gauges

IMPROVED BUTTRESS
SIZE T.P.I. T.P.F.
2 8 3/4
2-3/8 8 3/4
2-7/8 8 3/4
3-1/2 8 3/4
4 8 3/4
4-1/2 8 3/4
5-1/2 8 3/4
XTRA HOLE (X.H.)
SIZE T.P.I. T.P.F.
2-7/8 4 2
3-1/2 4 2
FEDP
SIZE T.P.I. T.P.F.
2-3/8 4 2TPF
2-7/8 4 2TPF
SHARP -VEE TUBING UPSET / NON-UPSET
SIZE UPSET T.P.I. NON -UPSET T.P.I. T.P.F.
1-1/4 11-1/2 - 3/4
1-1/2 11-1/2 11-1/2 3/4
2 10 11-1/2 3/4
2-1/2 10 11-1/2 3/4
3 10 11-1/2 3/4
3-1/2 10 10 3/4
4 10 10 3/4
DI-22
SIZE T.P.I. T.P.F.
4-3/4 2 1-1/2
5-1/4 2 1-1/2
5-3/4 2 1-1/2
6-3/4 2 1-1/2
8-1/4 2 1-1/2
9-1/4 2 1-1/2
9-3/4 2 1-1/2
10-1/2 1-5/8 1-1/2
DI-42
SIZE T.P.I. T.P.F.
9-3/4 2 1
10-1/8 2 1