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Camozzi Index|Valves|Air-Pilot Valves


camozzi

CAMOZZI Valves
Manual, Mechanical & Air-Pilot

Air-Pilot Valves - Series VBO - VBU

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

Unidirectional (Pilot-Operated Check Valve)
and Bidirectional (Blocking Valve) 1/8", 1/4", 3/8", 1/2" NPTF
Nominal diameters 5.5 - 8 - 11 mm
These valves have been designed to mount directly into the cylinder ports.
The inner design of the blocking valves Series VBO and VBU allows a very high flow rate and reliable operation.
Series VBO - VBU (Nickel Plated) Pilot-Operated Check/Blocking Valves
Unidirectional blocking valve Mod. VBU and bidirectional blocking valve Mod. VBO
Series VNR Check Valves

Part Number A B C F H L M N SW
VBU 1/8
1/8" 1/8" .665 .787 .216 1.692 .964 1.181 .590
VBU 1/4
1/4" 1/4" .807 .984 .275 1.968 1.267 1.318 .748
VBU 06
3/8" 3/8" 1.055 1.299 .314 2.637 1.574 1.555 .944
VBU 06-08 1/2" 3/8" 1.055 1.299 .334 2.667 1.574 1.555 .944

Part Number A B C F H L M N SW
VBO 1/8
1/8" 1/8" .665 .787 .216 1.692 .964 1.181 .590
VBO 1/4
1/4" 1/4" .807 .984 .275 1.968 1.267 1.318 .748
VBO 06
3/8" 3/8" 1.055 1.299 .314 2.637 1.574 1.555 .944
VBO 06-08 1/2" 3/8" 1.055 1.299 .334 2.667 1.574 1.555 .944
Unidirectional and Bidirectional Blocking Valves
Series VNR Check Valves
Pilot Pressure
Series VNR Check Valves
The diagram below shows the relation between working pressure and pilot pressure required in order to operate the valve.
VBU - The opening pressure of the unidirectional valve is 0.3 bar (4.35 psi).
Flow Rate
Series VNR Check Valves
Flow Q (NL/min.) (SCFM)
N.B.: Q is determined with an inlet pressure of 6 bar (87 psi).
Application Schemes
Series VNR Check Valves
Coding Example
Coding Example
(Click Image to Enlarge)
Technical Specifications
Construction poppet type
Valve group pilot-operated check and blocking valves (pilot connection 5/32" OD)
Materials OT58 Nickel-Plated Brass Body, Buna-N seals, Teflon seal ring, internals brass
Mounting by male thread
Ports 1/8" - 1/4" - 3/8" - 1/2" NPTF
Position in any position
Operating temperature 0 to 80°C (with dry air -20°C) (32°F - 175°F, dry air necessary down to - 4°F)
Lubrication not required, if necessary use oil compatible with Buna-N (3° - 10° E) (ISOVG32 grade)
Pneumatic Data
Operating pressure VBU: 0.3 - 10 bar (4.35 - 145 psi), VBO: 0 - 10 bar (0 - 145 psi)
Nominal pressure 6 bar (87 psi)
Nominal flow see graph
Nominal diam. 1/8" Ø5.5 mm (.217") - 1/4" Ø8 mm (.315") - 3/8" Ø11 mm (.433")
Fluid filtered air, without lubricant* (25 micron or less)
*in the event that lubricated air is used, it is recommended to use oil ISOVG32. Once applied, the lubrication should never be interrupted.
 
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