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Camozzi Index|Valves|Air-Pilot Valves


camozzi

CAMOZZI Valves
Manual, Mechanical & Air-Pilot

Air-Pilot Valves - Series VSC and VSO Quick Exhaust Valves

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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)
Series VBO - VBU (Nickel Plated) Pilot-Operated Check/Blocking Valves

Part Number
VSO 425-M5
Series VNR Check Valves
Series VBO - VBU (Nickel Plated) Pilot-Operated Check/Blocking Valves

Part Number
VSO 426-04
Series VNR Check Valves
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
Series VBO - VBU (Nickel Plated) Pilot-Operated Check/Blocking Valves

Series VNR Check Valves
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
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)
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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