SUN HYDRAULICS
DSIYXEV

***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 DSIYXEV (DSIYXEV) is a vent-to-shift diverter valve designed as a 2-position, 3-way cartridge that remains normally open from port 3 to port 4. When port 1 is vented, the pressure differential between ports 3 and 1 surpasses the spring force, causing the valve to shift and connect port 3 to port 2. This design allows the valve to modulate between its two positions rather than being bistable. The vent flow from port 1 is pressure compensated, ensuring stable operation under varying conditions. A pressure source at port 3 relative to port 1 is necessary for shifting the valve. This diverter valve can be used in pairs for selecting between two motors or pumps. Additionally, a single pilot valve can vent multiple diverter valves if blocking checks are applied at each diverter's port 1; otherwise, interaction may occur between high and low-pressure circuit legs. The self-cleaning vent-to-shift function makes it resistant to contamination, while its hardened spool and sleeve provide consistent low leakage rates and excellent durability. The Sun floating style construction minimizes internal part binding due to excessive installation torque or machining variations in cavity/cartridge setups. It fits into a T-34A cavity with a series capacity of up to 120 gpm (480 L/min) and operates at a maximum pressure of 5000 psi (350 bar). Its nominal vent flow rate is approximately 35 in\u00b3/min (0.60 L/min). The valve requires an installation torque of between 350-375 lbf ft (475-508 Nm) and has a hex size of 1-5/8 inches (41.3 mm), with an overall model weight of about 3.30 lb (1.50 kg). It uses Viton seals with the cartridge seal kit number being 990034006.