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Lovson Exports
Offers Lost Wax Injection Moulds as well as Lost Wax Moulds, Lost Wax Casting in India.







Lovson Exports






   Valves / Cast Iron Valves


Cast Iron Large Airrelease Valves
 
 
PART LIST
No.
Item
No.
Item
1
Body
5
Cowl Bolts
2
Cover
6
Cover Bolts
3
Cowl
7
Ball
4
Joint Support Ring
8
Seat Ring
    
Valve
Size
A
Ball
Via
B
Height
C
Width
D
Fig.
Od.
E
Fig.
Thk.
F
Bolt
Circle
G
No.
Holes
H
Hole
Dia
25
51
201
157
Available Scr. End. Only
50
76
263
188
151
16
119
100
19
75
97
282
244
188
19
151
100
19
100
126
357
304
226
23
188
200
19
150
201
482
426
276
26
238
200
22
200
 
576
501
338
28
294
200
22
 
Note : Flanges – dimensions given are for ASA class 125 ANSI 16.5 or may be as per IS/BS/DIN as required.
     
 
FEATURES
 
Only one moving part
Non – corrosive, non collapsible float
Drop – tight closure
Highest discharge capacity
Kinetic design prevents blowing shut

NOTES:

1. 50 mm & 75 mm size valve available with screwed (N.P.T)
    or flanged ends on inlet.

2. Sizes to 10 mm are available with screwed (N.P.T) outlet
    and throttle devices for deep well pump service.
     
SPECIFICATIONS

The air release valve shall employ the kinetic operating principle with one moving part, a stainless steel buoy ball. The valve shall be designed such that when the large orifice is open, the ball remains in the throat area without the possibility of the valve blowing shut or collapsing the ball. The valve shall close when water rises in the valve to lift the ball to the orifice seat. The valve body shall be cast iron.

During the exhausting sequence, the air flowing around the buoy ball produces a resultant downward force which maintains the ball in the open position.

The buoyant force of the ball will seal the exhaust orifice when water reaches the ball.
     
Note : Due to constant upgradation designs & dimensions are subject to change wihtout notice.
 
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