SUN Cartridge Valve LOHO-XDN For Different Pressure Changes And Requirements

These unbalanced, pilot-to-close logic valves are 2-way switching elements that are spring biased open. Pressure at either work port 1 or 2 will tend to keep the valve open while pressure at port 3 will tend to close it.

These valves feature positive seals between port 2 and the pilot area. Cartridges configured with EPDM seals are specifically designed for use in systems with phosphate ester fluids. Exposure to petroleum-based fluids, greases, and lubricants will damage the seals.

• Unbalanced design makes operation pressure dependent
• Opening and closing of the poppet are functions of force balances on three areas: Port 1 = 100%, Port 2 = 80%, and Pilot Area = 180%
• Pressure responsive at all ports - system operation must be considered through complete cycles
• All ports rated for 5000 psi (350 bar) operation
• Incorporates Sun floating style construction to minimize internal parts binding

• Cavity: T-17A
• Series: 3
• Capacity: 100 gpm
• Maximum Operating Pressure: 5000 psi
• Maximum Valve Leakage at 110 SUS (24 cSt): 10 drops/min.
• Pilot Volume Displacement: .25 in³

Corrosion resistant cartridge valves are available for use in corrosive environments, identified by model code suffix:

• /AP for external stainless steel components
• /LH for external zinc-nickel plated components