3-way, 2-position, vent-to-shift diverter valve, normally closed

Capacity: 30 gpm120 L/min. | Cavity: T-32A
DSEX : 3-way, 2-position, vent-to-shift diverter valve, normally closed
Technical Features [ + ]

This is a vent-to-shift, 2-position, diverter valve that is normally closed. When port 1 is vented, the pressure differential between port 3 and port 1 exceeds the spring force causing the valve to shift, thereby connecting port 3 with ports 2 and 4.

  • This valve is not bistable; it is capable of modulating between the two positions shown.
  • Vent flow out of port 1 is pressure compensated and is listed in Technical Data.
  • There must be a pressure source at port 3, relative to port 1, to shift the valve.
  • One application of this valve is to bypass divider/combiner valves in a limited-slip tractive circuit. Closed, the oil must go through the divider/combiner valves. Open, there is a large path around the divider/combiner valves for efficient high speed operation.
  • One pilot valve may be used to vent multiple diverter valves if blocking checks are used at port 1 of each diverter. If blocking checks are not used there will be interaction between high and low pressure legs of the circuit.
  • The vent-to-shift function is self cleaning and therefore insensitive to contamination.
  • Hardened spool and sleeve provide consistent and low spool leakage rates and excellent wear characteristics.
  • 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.
Technical Data [ + ]
Note: Data may vary by configuration. See CONFIGURATION section.
Cavity T-32A
Series 2
Capacity 30 gpm120 L/min.
Maximum Operating Pressure 5000 psi350 bar
Nominal Vent Flow 23 in³/min.0,38 L/min.
Valve Hex Size 1 1/8 in.28,6 mm
Valve Installation Torque 45 - 50 lbf ft61 - 68 Nm
Model Weight .70 lb0,30 kg
Seal kit - Cartridge Buna: 990032007
Seal kit - Cartridge Polyurethane: 990032002
Seal kit - Cartridge Viton: 990032006
Performance Curves [ + ]
FAQs [ + ]

Direct-acting valves are used to prevent over pressure, and pilot-operated valves are used to regulate pressure. If you are unsure, use a direct-acting valve. Sun's direct acting valves are very fast, dirt tolerant, stable, and robust. Sun's pilot-operated valves are moderately fast, they have a low pressure rise vs. flow curve, and they are easy to adjust.

There are exactly 250 Sun drops in a cubic inch or 15 in a cc.

Only external seals are serviceable.  Sun offers replacement seal kits for all cartridge models. The applicable kit part number can be found in the product page's Technical Data table or by using our Cartridge Seal Kit search function located under Accessories. Please note: Converting the external seals from one material to another does not ensure fluid compatibility with that material due to the existence of internal seals within the cartridge.
Additional Resources [ + ]