 |
|
We deal in three types of C.I. FITTINGS / SPECIALS. Below are some small details on them.
|
|
| C.I. Fittings / Specials as per IS-1538-1993 |
|
|
TOLERANCE ON LENGTH :
| Socket fittings & Tailpieces |
: |
Upto 450 mm |
= |
± |
20 mm |
| Socket fittings & Tailpieces |
: |
Above 450 mm |
= |
+ |
20 mm |
| Socket fittings & Tailpieces |
: |
Above 450 mm |
= |
– |
20 mm |
| Flanged fittings |
: |
All Diameter |
= |
± |
10 mm |
TOLERANCE ON MASS :
| Non Standard fittings |
= |
± |
12 percent |
| Fittings with more than one branch |
= |
± |
12 percent |
| Bends |
= |
± |
12 percent |
| Other Standard fittings |
= |
± |
8 percent |
HYDROSTATIC TEST :
The fittings are kept under pressure for 15 seconds when they are struck moderately with a 700 gm. hammer. The fittings withstand the pressure test without showing any leakage, sweating or other defect of any kind. |
|
 |
 |
| Table 7 : DIMENSION OF SOCKETS OF FITTINGS (LEAD JOINT) |
|
Nominal
Diameter
DN |
Barrel |
S O C K E T D I M E N S I O N S |
Joint
Thickness |
|
|
|
| DE |
DI |
P |
g |
h |
a |
K |
L |
M |
N |
f |
| |
|
|
Min |
Min |
Optional |
|
|
|
|
|
|
| 80 |
98 |
116 |
84 |
22.5 |
10.0 |
3.0 |
8.5 |
9 |
14 |
3 |
9.0 |
| 100 |
118 |
137 |
88 |
23.0 |
10.5 |
3.0 |
8.5 |
9 |
14 |
3 |
9.5 |
| 200 |
222 |
241 |
100 |
26.0 |
13.0 |
3.0 |
8.5 |
12 |
17 |
3 |
9.5 |
| 400 |
429 |
449 |
110 |
32.0 |
18.0 |
3.5 |
8.5 |
15 |
20 |
3 |
10.0 |
| 750 |
790 |
813 |
123 |
42.5 |
27.0 |
4.0 |
8.5 |
25 |
28 |
3 |
11.5 |
| 1050 |
1124 |
1143 |
128 |
52.0 |
36.0 |
5.0 |
8.5 |
28 |
32 |
3 |
12.0 |
|
|
|
|
|
| C.I. Specials for Mechanical & Push on Joints as per IS-13382-1992 |
|
|
TOLERANCE ON LENGTH :
| Socket fittings & Tailpieces |
: |
Upto 450 mm dia |
= |
± |
20 mm |
|
|
|
| Socket fittings & Tailpieces |
: |
Above 450 mm dia |
= |
+ |
20 mm |
|
– |
30 mm |
| All Flanged fittings |
: |
All Diameter |
= |
± |
10 mm |
|
|
|
TOLERANCE ON MASS :
| Bends |
= |
± |
12 percent |
| Non Standard fittings |
= |
± |
12 percent |
| Fittings with more than one branch |
= |
± |
12 percent |
| Fittings Other than above |
= |
± |
8 percent |
HYDROSTATIC TEST :
The Castings are kept under pressure for 15 seconds when they are struck moderately with a 700 gm. hammer. They withstand the pressure without showing any kind of leakage, sweating or other defects. |
|
 |
|
TABLE 24 : DETAIL DIMENSIONS OF THE JOINTS
Dimensions of Mechanical Joint-Socket |
|
Nominal
Diameter
DN |
Barrel |
S O C K E T D I M E N S I O N S |
|
|
| DE |
X |
DI |
P |
Q |
I |
J |
K |
N |
O |
S |
T |
L |
M |
| |
Min |
|
|
|
|
|
|
|
|
|
|
|
Min |
|
| 80 |
95 |
9 |
99.0 |
89 |
52 |
121.0 |
116.0 |
102 |
12 |
5.5 |
5.0 |
4.0 |
3.0 |
10.8 |
| 100 |
115 |
9 |
119.0 |
92 |
52 |
141.0 |
136.0 |
122 |
12 |
5.5 |
5.0 |
4.0 |
3.0 |
11.3 |
| 200 |
219 |
9 |
223.0 |
102 |
60 |
248.0 |
242.0 |
226 |
15 |
6.5 |
6.0 |
5.0 |
3.5 |
14.0 |
| 400 |
426 |
14 |
431.5 |
112 |
74 |
461.0 |
454.0 |
435 |
19 |
9.0 |
8.0 |
5.0 |
4.5 |
19.4 |
| 750 |
787 |
15 |
795.0 |
143 |
91 |
834.0 |
827.0 |
797 |
21 |
11.0 |
10.0 |
5.0 |
5.0 |
27.0 |
| 1050 |
1118 |
19 |
1125.0 |
143 |
91 |
1165.0 |
1161.0 |
1134 |
23 |
12.0 |
11.0 |
6.0 |
6.0 |
32.0 |
|
|
|
|
| C.I. Plain Ended Fittings / Specials as per IS-5531-1988 |
|
|
TOLERANCE ON MACHINED OUTSIDE DIAMETERS :
| Socket fittings & Tailpieces |
: |
+ |
1.5 mm |
| Socket fittings & Tailpieces |
: |
– |
1.0 mm |
TOLERANCE ON LENGTH AND HEIGHT :
| Socket fittings & Tailpieces |
: |
+ |
15.0 mm |
| Socket fittings & Tailpieces |
: |
– |
10.0 mm |
TOLERANCE ON MASS :
| Bends |
: |
± |
12 percent |
| Non Standard fittings |
: |
± |
12 percent |
| Fittings with more than one branch |
: |
± |
12 percent |
| Other specials than above |
: |
± |
8 percent |
HYDROSTATIC TEST :
The specials are under pressure for 15 seconds when they are struck moderately with a 700 gm. hammer. They should withstand the pressure test without showing any sign of leakage, sweating, or other defects of any kind. |
|
 |
|
| Table 48 : PLAIN ENDED BENDS |
|
Nominal
Diameter
DN |
Barrel outside
Diameter |
Barrel
Thickness |
Mass/mtr.
(Barrel) |
Mass/Flange |
Mass of Pipe including
two Flanges (App.) |
|
|
|
|
|
| DE |
e |
(App.) |
(App.) |
1 mtr. |
2 mtr. |
2.75 mtr. |
|
| 80 |
98 |
8.6 |
17.3 |
3.7 |
24.7 |
42.0 |
55.0 |
| 100 |
118 |
9.0 |
22.0 |
4.2 |
30.4 |
52.4 |
68.9 |
| 200 |
222 |
11.0 |
52.1 |
9.3 |
70.7 |
122.8 |
161.9 |
| 400 |
429 |
15.0 |
139.5 |
23.4 |
186.3 |
325.8 |
430.4 |
| 750 |
790 |
22.0 |
380.6 |
69.8 |
520.2 |
900.8 |
1186.3 |
| 1500 |
1567 |
37.0 |
1333.1 |
276.2 |
1885.5 |
3214.6 |
4218.4 |
|
|
|
|
| |
|
