Air Valves
Air Release Valves function to release air pockets that collect at each high point of a full pressured pipeline. Air Release Valves can open against internal pressure, because the internal lever mechanism multiplies the float force to be greater than the internal pressure. This greater force opens the orifice whenever air pockets collect in the valve. Air Release Valves are essential for pipeline efficiency and water hammer protection.
 
 
C.I. AIR VALVES as per IS : 14845 : 2000
 
Legend for Fig No. - H4
SL No. Description
1 Body
2 Low Pressure Cover
3 Cowl
4 Joint Support
SL No. Description
5 L.P. Seat Ring
6 Ferrule
7 L.P. Ball (Float)
8 Bolts & Nuts
Size
25
40
50
B (Min)
202
237
287
C SQ (Min)
164
180
180
Suitable for
Main Size
UP TO 100
UP TO 100
125 to 200
 
Legend for Fig No. - H7
SL No. Description
1 Body
2 High Pressure Cover
3 Low Pressure Cover
4 Cowl
5 Joint Support Ring
6 Cover
7 High Orifice Cover
SL No. Description
8 H.P. Orifice Plug
9 Ball for H.P. Chamber (Float)
10 Ball for H.P. Chamber (Float)
11 L.P. Seat Ring
12 Gasket
13 Bolts & Nuts
14 Guide Bush
Size
A (Min)
B (Min)
c (Min)
Suitable for
Main Size
40
442
210
224
UP TO 100
50
442
210
264
125 to 200
80
504
236
287
225 to 350
100
634
280
356
400 to 500
150
862
430
476
600 to 900
200
988
506
580
1000 to 1200
 
Legend for Fig No. - H40
SL No. Description
1 Body
2 High Pressure Cover
3 Low Pressure Cover
4 Valve
5 Valve Holder
6 Cowl
7 Joint Support Ring
8 Valve Cover
9 Gland
10 CAP
11 Seat Ring
12 Nut for Spindle
SL No. Description
13 Spindle
14 H.P. Orifice Cover
15 H.P. Orifice Plug
16 Ball for H.P. Chamber (Float)
17 Ball for L.P. Chamber (Float)
18 Valve Dics
19 L.P. Seat Ring
20 Packings
21 Gasket
22 Bolts & Nuts
23 Guide Bush
Guide Bush Guide Bush
Size
A (Min)
B (Min)
c (Min)
Suitable for
Main Size
40
442
210
371
UP TO 100
50
442
210
407
125 to 200
80
504
236
431
225 to 350
100
634
280
501
400 to 500
150
862
430
620
600 to 900
200
988
506
735
1000 to 1200
 
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