Product Overview
Cartridge
Description
This direct acting, solenoid-operated, 4-way, 3-position spool valve is spring centered to the neutral position. When coil A is energized, the flow is from port 3 (P) to port 2 (A) and from port 4 (B) to port 1 (T). When coil B is energized, the flow is from port 3 to port 4 and from port 2 to port 1.
The solenoid tube assembly is fatigue rated for 5000 psi (350 bar) service.
This valve is direct actuated and requires no minimum hydraulic pressure for operation.
In differential flow circuits, the higher return flow should be directed through port 2 (A) to port 1 (T).
Cartridges configured with EPDM seals are for use in systems with phosphate ester fluids.
Exposure to petroleum based fluids, greases and lubricants will damage the seals.
Specifications
Cavity T-31A
Series 1
Capacity 5 gpm
Maximum Operating Pressure 5000 psi
Maximum Valve Leakage at 110 SUS (24 cSt) 10 in³/min.@3000 psi
Response Time - Typical 50 ms
Switching Frequency 15,000 max. cycles/hr
Solenoid Tube Diameter .75 in.
Valve Hex Size 7/8 in.
Valve Installation Torque 30 - 35 lbf ft
Seal kit - Cartridge Buna: 990431007
Seal kit - Cartridge EPDM: 990431014
Seal kit - Cartridge Viton: 990431006
Seal and nut kit - Coil Viton: 990770006
Model Weight 0.98 lb.
Features
This valve utilizes a wet armature design. This means that the working fluid surrounds the armature and is exposed to the heat generated by the coil. This can be a factor if the coil is energized for long periods of time. Some fluids, notably water/glycol mixtures, break down at these temperatures over time and form varnishes that will affect the function of the cartridge.A wide variety of coil termination and voltage options are available, with and without surge protection. See the CONFIGURATION section.
The solenoid's unique magnetic design results in a high efficiency solenoid, yielding high spool actuating force per Watt expended, leading to reliable valve shifting.
Coils are interchangeable with other Sun Series 1 solenoid products and can be mounted on the tube in either direction.
Coil connector options offer ratings up to IP69K. See individual coil product pages for details.
*Please note that image representation may only represent a product series with particular items. The buyers responsibility is to ensure the product SKU matches their specifications before purchase.
