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CATEGORY VIEW  - IS:778 GUN METAL/GLOBE VALVES/CHECK VALVES

 
 

IS:778-1984 HORIZONTAL CHECK VALVES FLANGED : CLASS 1

S. No
Size
 
DIMENSIONS IN MM
 
SPECIFICATION
375
15 mm
 
NOMINAL SIZE
A
B
C
D
 
Gun Metal Horizontal CheckVales ISI Marked to IS:778-1984
376
20 mm
 
15 mm (1/2")
75
40
95
6
 
Screwed to Bonnet
377
25 mm
 
20 mm (3/4")
85
45
105
6
 
Screwed Female Ends to BSP
378
32 mm
 
25 mm (1")
95
55
115
8
   
379
40 mm
 
32 mm (1.1/4")
110
59
140
9
 
HYDAULIC TEST PRESSURE
380
50 mm
 
40 mm (1.1/2")
120
65
150
11
 
Body - 1.5 MPa, Seat & Back Seat - 1.0 MPa
381
65 mm
 
50 mm (2")
145
74
165
13
   
382
80 mm
 
65 mm (2.1/2")
165
100
185
13
   
383
100 mm
 
80 mm(3")
185
125
200
16
   
     
100 mm (4")
216
180
220
16
   



MATERIALS
PART NO.
NAME OF PART
MATERIAL
SPECIFICATION
1
Body
Gun Metal
IS:318 LTB-2
2
Bonnet
Gun Metal
IS:318 LTB-2
3
Seat
Gun Metal
IS:6912 FLB
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