TECHNICAL SPECIFICATIONS
PNEUMATIC DATA
Construction
poppet type
Valve group
pilot-operated check and blocking valves
Materials
OT58 Nickel-Plated Brass Body - Buna-N seals
Mounting
by male thread
Ports
1/8” - 1/4” - 3/8” - 1/2”
NPTF
Position
in any position
Operating temperature
from 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)
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*
Pilot-Operated Check/Blocking Valves
Series VBO - VBU (Nickel Plated) - NPTF/INCH
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.
*
in the event that lubricated air is used, it is recommended to use oil ISO VG32. Once applied, the lubrication should never be interrupted.
The company reserves the right to vary models and dimensions without notice.
These products are designed for industrial applications and are not suitable for sale to the general public.
99
F l o w c o n t r o l v a l v e s
3
p i l o t - op e r a t e d ch e c k/b l oc k i ng v a l v e s
