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38
Pneumatic Directional Control Valves
AVENTICS Corporation
Port Marking
1=
2 & 4=
3 & 5=
12 & 14=
Common Exhaust Port
Delivery (Cylinder) Ports
Supply Pressures
External Pilot Ports
Ceram™ Valves, ISO 5599/1 Sizes 1-4
Piping procedures
Dual Pressure Valve Conversion Instructions (Size 1 & 2)
Please note that the supply pressure in Port 5 must be at least 29 psi (for 2-position models) or 44 psi
(for 3-position models).
If minimum pressure is not met on port 5, external piloting must be used; see page 38 for directions.
Size 1 & 2 CERAM Valves are designed for dual pressure applications. For this service “replumb” the
subbase by using ports “3” and “5” for the two different supplies, and port “1” for a common exhaust.
(Ports “2” and “4” are still the delivery ports.) Port “3” will supply port “2”, and port “5” will supply port “4”.
After the subbase has been “replumbed”, remove the valve from the subbase and remove the bottom
gasket as shown in Figure 1 and 2. Flip the gasket end-to-end so the internal pilot hole will be covered
by the gasket as shown in Figure 3. remove tab “B” as shown in Figure 3. Remount valve to base.
Dual Pressure Valve Conversion Instructions (Sizes 3 & 4)
Convert to external pilot according to instructions on previous page, then follow instructions at top right of this page.
Piping Instructions - All Sizes (1, 2, 2, 4)
CAUTION: Air supply should be removed
before modification.
Normal Piping Procedure
Use these connections if
you have one supply
pressure only.
Single Pressure
Dual Pressure Piping Procedure
2 Position Valve Piping. (Do not
use unless you must use 2
different supply pressures.)
Port Marking
1=
2 & 4=
3 & 5=
12 & 14=
Supply Pressure
Delivery (Cylinder) Ports
Exhaust Ports
External Pilot Ports
3 Position Valve Piping. (Use
for supplied center or for 2
different supply pressure.)
SIZE 1 GT SERIES VALVE
DUAL PRESSURE CONVERSION
SIZE 2 GS SERIES VALVE
DUAL PRESSURE CONVERSION
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