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

 
 

IS:778-1984 GUN METAL GATE SWING CHECK VALVES : CLASS 1

S. No Size   DIMENSIONS IN MM   SPECIFICATION
351
15 mm
 
NOMINAL SIZE
A
B
C
D
 
Gun Metal Swing Check Vales ISI Marked to IS:778-1984
352
20 mm
 
15 mm (1/2")
65
1/2x14
26
46
 
Screwed to Bonnet
353
25 mm
 
20 mm (3/4")
75
3/4x14
32
52
 
Screwed Female Ends to BSP
354
32 mm
 
25 mm (1")
95
1x11
39
69
   
355
40 mm
 
32 mm (1.1/4")
105
1.1/4x11
49
69
 
HYDAULIC TEST PRESSURE
356
50 mm
 
40 mm (1.1/2")
125
1.1/2x11
55
78
 
Body - 1.5 MPa, Seat & Back Seat - 1.0 MPa
     
50 mm (2")
150
2x11
68
82
   
     
65 mm (2.1/2")
180
2.1/2x11
85
106
   
     
80 mm (3")
210
3x11
98
132
   



MATERIALS
PART NO.
NAME OF PART
MATERIAL
SPECIFICATION
1
Body & Wedge
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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