Ball Valves
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  Globe Valves
  Forged Steel Valves
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  Check Valves
 
CHECK VALVES

SWING CHECK VALVES
CHECK VALVES prevents reversal of direction of flow through a line. They offer quick automatic reactions to flow changes, the pressure of the flowing fluid keeps the valve open & any reversal of flow closes it.
SERVICE RECOMMENDATIONS
•
 Minimum resistance to flow
•
 Low velocity services, especially liquids
•
 Infrequent change of directions in backflow Prevention
•
 Used generally with GATE VALVES
LIFT CHECK VALVES
When SWING CHECK VALVES are used in systems in which frequent flow reversals may be encountered the valves may have a tendency to chatter. This can be corrected by equipping the valve with outside lever & weight. It may be used to add weight to disc quicker closing against backflow preventing water hammer & excessive shock pressure.
The lever & weight can be adjusted so that the disc will open at the slightest pressure, or else to prevent the disc from opening until a desired pressure is attained
SERVICE RECOMMENDATIONS
•
 Frequent change of direction
•
 Increased flow resistance
•
 Prevention of Backflow
•
 Used with Globe& Angel Valves
 
PART NAME
  MATERIAL SPECIFICATION
Body ASTM A 216 GR. WCB ASTM A 351 GR CF8 / CF8M
Cover ASTM A 216 GR. WCB ASTM A 351 GR CF8 / CF8M
Disc ASTM A 216 GR. WCB + 13% Cr. Facing ASTM A 351 GR CF8 / CF8M
Seat Ring AISI 410 Integral With Body
Hinge ASTM A 216 GR. WCB AISI 304 / 316
Hinge Pin AISI 410 AISI 304 / 316
Gasket Spiral Wound Metallic Gasket AISI 304 / 316
Bolts / Nuts ASTM A 193 GR. B7 / A 194 GR.2H ASTMA 193 GR. B7 / A 194 GR.2H
 
 ALTERNATE MATERIAL OF CONSTRUCTION :
 WC6, WC9, LCB, LC6 CF3, CF3M, CG3M, HESTALLOY C& B, MONEL, TITANIUM
 CLASS 150
SIZE
25
40
50
65
80
100
150
200
250
300
A
127
165
203
216
241
292
356
495
622
698
H
85
120
152
190
205
228
280
330
356
482
    All the dimensions are in mm.
 CLASS 300
SIZE
25
40
50
65
80
100
150
200
250
300
A
203
241
267
292
318
356
445
543
622
711
H
150
160
178
216
229
254
317
368
381
495
    All the dimensions are in mm.
 SPECIFICATIONS :
Design Standard :   BS 1868 / API 6D / ASME B 16.34
Face to Face :   ASME B 16.10
Ends :- Flanged Ends :   ASME B 16.5 R/F
Buttweld Ends :   ASME B 16 25
Testing :   API 598 / BS 6755-1
 
MANUFACTURING RANGE
SIZE
PRESSURE RATING
25 mm to 300 mm
150# TO 1500#
 INSPECTION & TESTING
CLASS
SHELL
SEAT
 
HYDROSTATIC
HYDROSTATIC
150#
30 Kg/Cm2
22 Kg/Cm2
300#
77 Kg/Cm2
55 Kg/Cm2
 
Available On Request
•
Stellite feeling
•
Jacketed Construction
•
Valve Under "X-Ray" Quality
•
Ball Check Valve
 
 
   
     
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SHREE CHAMUNDA VALVES MFG. CO.
L-527/1, B/h. Odhav Police Station, G.I.D.C. Odhav, Ahmedabad - 382415. Gujarat - India.
Tel : 079-22892119, Fax : 079-22970963, Cell : +91-99250 46278, E-mail : info@chamundavalve.com, sales@chamundavalve.com