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Series VSC and VSO
Quick Exhaust Valves Cv = .05 - 4.73
Quick exhaust valves VSC, VSO,
Ports M5 (10-32 UNF), 1/8", 1/4",
3/8", 1/2", NPTF
cartridge Ø 4 mm (5/32" O.D.) (VSO only) |
Quick exhaust valves are commonly used to increase the speed of
cylinders or for rapid depressurisation of tanks containing compressed
air. The models VSO 425-M5 and VSO 426-04 are specially
designed for mounting on solenoid valves and valves incorporating a
5/32" O.D. port. We recommend that a silencer be mounted on the
outlet (2931-M5).
Materials used:
- OT58 (brass) body, Nickel Plated
- Buna-N seals
Nominal flowrate
from P → A Qn* 50 NL/min. (1.76 SCFM)
from A → R Qn* 100 NL/min. (3.53 SCFM)
Qn* = determinated with 6 bar (87 psi) and DP = 1 bar (14.5 psi)
Minimum operating pressure = 1 bar (14.5 psi)
Cv Rating
from P → A: Cv = 0.05
from A → R: Cv = 0.1 |
| Quick exhaust valves Series VSO (connections are all 5/32" OD) |
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| Quick exhaust valves Series VSC |
Quick exhaust valves are commonly used to increase the
speed of cylinders or for rapid depressurisation of tanks
containing compressed air. We recommend that a silencer
be mounted on the outlet.
Materials used:
- OT58 (brass) body, Nickel Plated
- Desmopan seal (polyurethane)
VSC 588-02 Qn = P → A 650 NL/min Qn = A → R 1000 NL/min
Minimum operating pressure = 0,5 bar
VSC 544-04 Qn = P → A 1100 NL/min Qn = A → R 1900 NL/min
Minimum operating pressure = 0,3 bar
VSC 538-06 Qn = P → A 4500 NL/min Qn = A → R 6300 NL/min
Minimum operating pressure = 0,2 bar
VSC 522-08 Qn = P → A 4500 NL/min Qn = A → R 6300 NL/min
Minimum operating pressure = 0,2 bar
* Qn = determinated with 6 bar and Dp = 1 bar |
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| Dimensions (in Inches) |
|
Flow (QN) |
| Part Number |
B |
D |
L1 |
L2 |
SW |
Inlet P→A |
Exhausting A→R |
| SCFM |
Cv |
SCFM |
Cv |
| VSC 588-02 |
1/8" |
1.102 |
1.437 |
.984 |
.551 |
22.9 |
0.68 |
35.3 |
1.05 |
| VSC 544-04 |
1/4" |
1.299 |
1.653 |
1.122 |
.669 |
38.8 |
1.16 |
67.1 |
2.00 |
| VSC 538-06 |
3/8" |
1.692 |
2.263 |
1.555 |
.944 |
158.9 |
4.73 |
222.5 |
6.62 |
| VSC 522-08 |
1/2" |
1.692 |
2.302 |
1.555 |
.944 |
158.9 |
4.73 |
222.5 |
6.62 |
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| Technical Specifications |
| Construction |
Poppet type |
| Mounting |
In-line |
| Materials |
Nickel-plated brass body, Buna-N seals, Polyurethane seals |
| Port sizes |
M5 (10-32 UNF), 1/8", 1/4", 3/8", 1/2" NPTF; 5/32" O.D. cartridge |
| Installation |
In-line |
| Operating temperature |
32°F - 175°F, (dry air necessary down to - 4°F) |
| Fluid |
Filtered air (25 micron or less) |
| Lubricant |
Oil compatible with Buna-N, (3° - 10° E) (ISOVG32 grade) |
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| Pneumatic Data |
| Operating pressure |
0.3 - 10 bar, (5 - 145 psi) |
| Nominal pressure |
6 bar (87 psi) |
| Nominal flow |
Series VSC:
P → A, 1/8" = 650 NL/min. (22.9 SCFM) 1/4" = 1100 NL/min. (38.8 SCFM)
3/8" = 4500 NL/min. (158.9 SCFM) 1/2" = 4500 NL/min. (158.9 SCFM)
A → R, 1/8" = 1000 NL/min. (35.3 SCFM) 1/4" = 1900 NL/min. (67.1 SCFM)
3/8" = 6300 NL/min. (222.5 SCFM) 1/2" = 6300 NL/min. (222.5 SCFM)
Series VSO:
P → A, 5/32" O.D. = 30 NL/min. (1.06 SCFM)
A → R, 5/32" O.D. = 80 NL/min. (2.82 SCFM) |
| Cv |
See Table |
*Qn flowrate (SCFM) determined with a supply pressure of 6 bar, (87 psi), and with a pressure drop of 1 bar, (14.5 psi).
** Soft-seal repair kits are available for Series VSC Quick-exhaust valves.
***Dimensions are in millimeters. |
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Fittings
Valves
