Bis Pipe Fitting Industry Co.,Ltd.

GALVANIZED / BLACK MALLEABLE IRON PIPEFITTINGS (150 LBS) STANDARD SPECIFICATION :
STANDARD	AMERICAN	BRITISH	DIN
DESIGN THREADS MATEARIAL GALVANIZING TYPE	ANSI / ASME B - 16.3 ANSI / ASME B - 16.14 ANSI / ASME B - 16.39 ANSI / ASME B - 1.20.1 ASTM A - 197 ASTM A - 153 BANDED	BS 143 BS 21 BS 6681 BS 729 BANDED	DIN 2950 (BS 1256) DIN 2999 (BS 21) DIN 1692 DIN 2950 BEADED

BRITISH STANDARD THREADS

Froms of British Standard Pipe Threads

Fig. 1. (Parallel)
H=0.960491 x p
h=0.640327 x p
r=0.137329 x p

Fig. 2. (Taper)
H=0.960237 x p
h=0.640327 x p
r=0.137278 x p

Fig. 3. (Taper)

Table 1. Basic Sizes				Dimensions, in Inch

Nominal Bore of Pipe	Approximate Outside diameter of Black Pipe	Number of Threads per Inch	Pitch	Depth of Thread	Diameter of Gauge Plane (Gauge Dia.)	Distance of gauge Diameter from End (gauge Length)	Length of Useful Thread
	A		P	h	B	F	E
1/8 1/4 3/4 1/2 3/4 1 1 1/4 1 1/2 2 2 1/2 3 3 1/2 4 5 6	0.400 0.538 0.676 0.847 1.063 1.336 1.677 1.909 2.381 2.996 3.499 3.991 4.494 5.498 6.501	28 19 19 14 14 11 11 11 11 11 11 11 11 11 11	0.03571 0.05263 0.05263 0.07143 0.07143 0.09091 0.09091 0.09091 0.09091 0.09091 0.09091 0.09091 0.09091 0.09091 0.09091	0.0229 0.0337 0.0337 0.0457 0.0457 0.0582 0.0582 0.0582 0.0582 0.0582 0.0582 0.0582 0.0582 0.0582 0.0582	0.383 0.518 0.656 0.825 1.041 1.309 1.650 1.882 2.347 2.960 3.460 3.950 4.450 5.450 6.450	0.1563 0.2367 0.2500 0.3214 0.3750 0.4091 0.5000 0.5000 0.6250 0.6875 0.8125 0.8750 1.000 1.1250 1.1250	0.2545 0.3814 0.3947 0.5178 0.5714 0.6591 0.7500 0.7500 0.9204 1.0511 1.1761 1.2386 1.4091 1.5795 1.5795

BRITISH STANDARD THREADS Froms of American Standard Pipe Threads
* Straight Pipe Threads; the pitch, angle, and depth of thread are the same as the corresponding dimensions of the taper pipe threads

Table 2. Basic Dimensions				Dimensions, in Inch

Nominal Pipe Size	Outside Diameter of pipe	Threads per Inch	Pitch of Threads	Hand - Tight Engagement		Effective Thread Length External	Depth of Thread
	D	n	P	L1	E1	L1	h
1/8 1/4 3/4 1/2 3/4 1 1 1/4 1 1/2 2 2 1/2 3 3 1/2 4 5 6	0.405 0.540 0.675 0.840 1.050 1.315 1.660 1.900 2.375 2.875 3.500 4.000 4.500 5.563 0.625	27 18 18 14 14 11 1/2 11 1/2 11 1/2 11 1/2 8 8 8 8 8 8	0.03704 0.05556 0.05556 0.07143 0.07143 0.08696 0.08696 0.08696 0.08696 0.12500 0.12500 0.12500 0.12500 0.12500 0.12500	0.180 0.200 0.240 0.320 0.339 0.400 0.420 0.420 0.436 0.682 0.766 0.821 0.844 0.937 0.958	0.37476 0.48989 0.62701 0.77843 0.98887 1.23863 1.58338 1.82234 2.29627 2.76216 3.38850 3.88881 4.38712 5.44929 6.50597	0.2639 0.4018 0.4078 0.5337 0.5457 0.6828 0.7068 0.7235 0.7565 1.1375 1.2000 1.2500 1.3000 1.4063 1.5125	0.02963 0.04444 0.04444 0.05714 0.05714 0.06957 0.06957 0.06957 0.06957 0.10000 0.10000 0.10000 0.10000 0.10000 0.10000

High Grade Malleable Iron Pipe Fittings Class 150 PSI Standard Specification

STANDARD	AMERICAN	BRITISH	DIN
Design Threads Material Galivanizing Type	ANSI/ASME B-16.3 ANSI/ASME B-16.14 ANSI/ASME B-16.39 ANSI/ASME B-1.20.1 ASTM A-197 ASTM A-153 BANDED	BS EN 10242 BS 21 BS 6681 BS 729 BANDED	EN 10242 DIN 2999 (ISO 7-1) DIN 1692 DIN 2950 BEADED

Pressure and Temperature Rating

Service Temperature C ( F )

Maximum permissible working pressure - bar

-20 to 120 ( -4 to 248 )
between 120 and 300 ( 248 and 572 )
300 ( 572 )

25
interpolated values
20

The quality improvement is never ending at BIS. With continuing improvement on our quality fittings and services to the most satisfaction of our customers and value to save every single drop of water and save our earth.