Loading...
2-way, air-operated, spool directional valve - pilot capacity
Cavity: T-8A | Capacity:
See CAD Files tab below to request images.
Technical specifications
These pilot-stage, directional, 2-position, 2-way valves are pneumatically operated, spring-return cartridges and are available in either normally open or normally closed configurations. These cartridges are designed for pilot flow applications and utilize Sun's T-8A cavity so they can be used in conjunction with Sun's pilot-operated, main-stage valves.
- Utilizes the Sun T-8A 2-port cavity making it the ideal choice to use in conjunction with Sun's main stage pilot or vent-to-operate cartridges. Separate pilot lines are eliminated and only one cavity needs to be machined to accommodate both the control and primary function. Note: All 2-position, 2-way pilot stage control cartridges utilize the same cavity and are physically interchangeable. Functionality is the only consideration.
- Note: The main stage valve should first be installed to the correct torque value followed by the T-8A pilot control section into the main stage valve to its required torque value.
- The preferred flow path through the valve is port 2 to port 1.
- Different pilot control port options are available. See Option Selection for details.
- Hardened spool and sleeve provide consistent operation, low spool leakage rates and superior wear characteristics.
- The minimum pilot pressure required to operate the valve is determined by the following formula: pilot pressure = 20 psi + pressure @ Port 1 divided by 100. This results in a pilot pressure range of 20 to 70 psi. In metric; pilot pressure = 1,4 bar + pressure @ Port 1 divided by 100. This results in a pilot pressure of 1,4 to 5 bar.
- All ports will accept 5000 psi (350 bar) with the exception of the pilot port which accepts 500 psi (35 bar) max.
- Incorporates the Sun floating style construction to minimize the possibility of internal parts binding due to excessive installation torque and/or cavity/cartridge machining variations.
- Cavity
- Series
- Capacity.25 gpm
- Maximum Operating Pressure5000 psi
- Maximum Valve Leakage at 110 SUS (24 cSt)10 drops/min.@5000 psi
- Minimum Pilot Pressure to OperateSee Technical Features
- Pilot Control PortSee Control Options
- Valve Hex Size7/8 in.
- Valve Installation Torque20 - 25 lbf ft
- Seal kit - Cartridge
- Seal kit - Cartridge
What parts of the Sun cartridge valve are field serviceable?
How big is a drop of hydraulic oil?
Direct acting or pilot operated - what do I use?
- DAAPA Model
- DAAPB Model
- DAAPD Model
Highlights
Technical Tips
Technical Information