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Safety Check alves
Check Valve in
Open Position
Check Valve in
Closed Position
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used in temporary plant/factory air lines, construction sites, shipyards or utilities
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not for use in applications where 100% of the available air is required, i.e. sand blast, pile driving rigs,expansion
joint blow down pipes, etc.
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preventing hose whip
•
solid brass body and valve
•
stainless steel spring and roll pin
•
maximum operating pressure:
250
PSI
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maximum temperature:
250
°F
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conforms to
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Safety check valves utilize the pressure differential across the valve to operate the valve and spring assembly. The pressure
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by the spring is greater than that caused by the pressure differential (see "Open Position" graphic above). The valve remains
open and normal operation continues.
•
When the pressure differential is above the cutoff limit, the force on the valve exerted by the pressure differential is greater
than the force exerted by the spring, and the valve closes (see the "Closed Position" graphic above).
•
After the repair is made, normal operation is automatically enabled when pressure across the valve equalizes through the
bleeder hole.
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failure or rupture occurs.
Flow Direction
NPT and Hose
ID Size
Part #
Cut-off Flow Rate
6&)0
DW
36,
Price/E NPT and Hose
ID Size
Part # Cut-off Flow Rate
6&)0
DW
36,
Price/E
¼"
SCVL2
$62.58
1¼"
SCVL10
$233.05
O
SCVM3
58.70
SCVM10
300-340
233.05
SCVS3
52-65
58.70
SCVS10
440-500
233.05
½"
SCVM4
70-78
63.03
SCVH10
570-630
233.05
SCVS4
63.03
1½"
SCVL12
300-360
390.91
¾"
SCVL6
72-88
99.76
SCVM12
470-530
390.91
SCVM6
99.76
SCVS12
640-720
390.91
SCVR6
112-128
99.76
SCVH12
750-830
390.91
SCVJ6
132-148
99.76
2"
SCVL16
533.79
SCVS6
160-180
99.76
SCVM16
725-825
533.79
SCVH6
180-200
99.76
SCVS16
533.79
1"
SCVL8
112.83
SCVH16
1100-1200
533.79
SCVM8
220-260
112.83
3"
SCVL24
1200-1400
2266.67
SCVS8
280-320
112.83
SCVS24
2400-2700
2266.67
SCVH8
310-340
112.83
SCVH24
2850-3050
2266.67