SUN HYDRAULICS
DSIYXDV

***Disclaimer: The following summary contains information gathered from various sources such as product descriptions, technical specifications and catalogs. While efforts have been made to provide accurate details, inaccuracies may occur. It is advised to verify all information by contacting Sun Hydraulics directly.***
The Sun Hydraulics DSIYXDV (DSIYXDV) is a vent-to-shift diverter valve designed as a 2-position, 3-way cartridge that operates normally open from port 3 to port 4. When port 1 is vented, the pressure differential between port 3 and port 1 surpasses the spring force, causing the valve to shift and connect port 3 to port 2. This valve is not bistable, allowing it to modulate between its two positions. It features pressure-compensated vent flow out of port 1, requiring a pressure source at port 3 relative to port 1 for shifting. An application for this valve includes using it in pairs to select between two motors or pumps. A single pilot valve can vent multiple diverter valves if blocking checks are installed at each diverter's port 1; without them, interaction occurs between high and low-pressure circuit legs. The DSIYXDV boasts a self-cleaning vent-to-shift function that resists contamination, with hardened spool and sleeve ensuring low leakage rates and excellent wear characteristics. Its Sun floating style construction minimizes internal part binding risk due to excessive installation torque or cavity-cartridge machining variations. The valve fits into T-34A cavities in series 4, with a capacity of up to 120 gpm (480 L/min) and a maximum operating pressure of 5000 psi (350 bar). Its nominal vent flow is rated at approximately 35 in\u00b3/min (0.60 L/min). The valve requires an installation torque between 350 - 375 lbf ft (475 - 508 Nm) and has a hex size of approximately 1-5/8 inches (41.3 mm), weighing about 3.30 lb (1.50 kg). For maintenance or replacement, Viton seal kits are available under part number: 990034006.