TACO
TACO CO.,LTD
http://www.taco-ltd.com/
intl@taco-ltd.com

HOME / PRODUCTS / CONVERSION TABLE FOR UNITS USED IN THIS CATALOG

CONVERSION TABLE FOR UNITS USED IN THIS CATALOG.

PRESSURE FORCE AIR FLOW TORQUE
1kgf/cm2 =0.0980MPa
≅0.1MPa		 1kgf =9.80665N
≅10N		 1Nℓ/min =1ℓ/min
(atomospheric condition)
=1dm3/min (ANR) 		1kgf·cm ≅0.1N·m
≅0.87ℓbf·in
≅0.0725ℓbf·ft

Pa or N/m2 MPa or N/mm2 bar kgf/cm2 lbf/in2
 atm
 mHg
 mAg
1
 1×10-6 1×10-5
 1.020×10-5
 1.450×10-4
 9.869×10-6
 7.501×10-6
 1.020×10-4
1×106
 1 1×10
 1.020×10 1.450×102
 9.869
 7.501
 1.020×102
1×105
 1×10-1 1
 1.020 1.450×10
 9.869×10-1
 7.501×10-1
 1.020×10
9.807×104
 9.807×10-2
 9.807×10-1
 1 1.422×10
 9.678×10-1
 7.356×10-1
 1×10
6.895×103
 6.895×10-3
 6.895×10-2
 7.031×10-2 1
 6.805×10-2
 5.171×10-2
 7.031×10-1
1.013×105
 1.013×10-1
 1.013
 1.033 1.470×10
 1
 7.600×10-1
 1.033×10
1.333×105
 1.333×10-1
 1.333
 1.360 1.934×10 1.316
 1
 1.360×10
9.807×103 9.807×10-3 9.807×10-2 1×10-1 1.422 9.678×10-2 7.355×10-2 1

CONVERSION TABLE BETWEEN JIS PIPE SIZE (R, Rc) AND AMERICAN PIPE SIZE (NPT)

NOMINAL
SIZE		 NOs. OF THREAD
/25.4mm		 EFFECTIVE DIA.
(D2 OR E1)(mm)		 PITCH OF THREAD
(mm)		 DIFFERENCE
OF PITCH
(mm)		 OUTER DIA OF PIPE
(REF.)(mm)
R·Rc NPT R·Rc NPT R·Rc NPT JIS NPT
1/16
1/8
1/4
3/8
1/2
3/4
1
11/4
11/2
2
21/2
3		 28
28
19
19
14
14
11
11
11
11
11
11		 27
27
18
18
14
14
11.5
11.5
11.5
11.5
8
8		 7.142
9.147
12.301
15.806
19.793
25.279
31.770
40.431
46.324
58.135
73.705
86.405		 7.142
9.489
12.487
15.926
19.772
25.117
31.461
40.218
46.287
58.325
70.159
86.068		 0.9071
0.9071
1.3368
1.3368
1.8143
1.8143
2.3091
2.3091
2.3091
2.3091
2.3091
2.3091		 0.9408
0.9408
1.4112
1.4112
1.8143
1.8143
2.2088
2.2088
2.2088
2.2088
3.1750
3.1750		 0.0337
0.0337
0.0744
0.0744
0
0
0.1003
0.1003
0.1003
0.1003
0.8659
0.8659		 -
10.5
13.8
17.3
21.7
27.2
34.0
42.7
48.6
60.5
76.3
89.1		 7.94
10.29
13.72
17.15
21.34
26.67
33.40
42.16
48.26
60.33
73.03
88.90



[Back ]

TACO CO.,LTD

9-27-9 Takashimadaira Itabashi-ku Tokyo Japan 175-0082
TEL. +81-3-3936-2311 / FAX.+81-3-3935-9121
E-mail : intl@taco-ltd.com
Copyright TACO CO.,LTD , All rights reserved.