TIÊU CHUẨN REN ỐNG NƯỚC N.P.T (REN CÔN)

CỠ REN N.P.T. INS

ðẦU ðỰC ðƯỜNG KÍNH ðỈNH

REN O.D. mm

ðẦU CÁI ðƯỜNG KÍNH ðỈNH

REN I.D. mm

1/8 - 27 9.9 8.4

1/4 - 18 13.2 11.2

3/8 - 18 16.6 14.7

1/2 - 14 20.6 17.8

3/4 - 14 26 23.4

1 - 111/2 32.5 29.5

11/4 - 11

1/2 41.2 38.1

11/2 - 11

1/2 47.3 43.9

2 - 111/2 59.3 56.4

21/2 - 8 71.5 69.1

3 - 8 87.3 84.8

N.P.S. THREADS

N.P.S. THREAD SIZE INS

FEMALE THREAD I.D.

mm 1/8 – 27 8.6

1/4 - 18 11.9

3/8 – 18 15

1/2 – 14 19.1

3/4 – 14 24.6

1 - 111/2 30.5

11/4 - 11

1/2 39.4

11/2 - 111/2 45.5

2 - 111/2 57.4

21/2 – 8 68.8

3 – 8 84.6

Các thông s ố ren ống NPT (National Pipe Thread)

ðộ dày ống Cỡ ống TPI OD S L Sch.

40 Sch. 80

Sch. 160 XXS

1/8 27 10.29 8.73 4.76 1.73 24.13 - -

¼ 18 13.72 11.11 7.14 22.35 3.02 - -

3/8 18 17.15 14.68 7.54 23.11 3.20 - -

½ 14 21.34 18.26 9.53 2.77 3.73 4.75 7.47

¾ 14 26.67 23.42 10.32 2.87 3.91 5.54 7.82

1.00 11.50 33.40 25.4 - 3.97 12.70 3.38 4.55 6.35 9.09

1.25 11.50 42.16 25.4 - 12.7 13.89 3.56 4.85 6.35 9.70

1.50 11.50 48.26 25.4 - 18.65 14.29 3.68 5.08 7.14 10.16

2.00 11.50 60.33 50.8 - 5.56 14.68 3.91 5.54 8.71 11.07

2.50 8 73.03 50.8 - 15.88 22.23 5.16 7.01 9.53 14.02

3.00 8 88.90 76.2 - 6.35 23.81 5.49 7.62 11.10 15.24

3.50 8 101.60 76.2 - 19.05 25.40 5.74 8.08 - -

4.00 8 114.30 101.6 - 6.35 25.4 - 1.59 6.02 8.56 13.49 17.12