SUN HYDRAULICS
DNCALSN836

***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 DNCALSN836 (DNCALSN836) is a solenoid-operated, 4-way, 2-position cartridge valve featuring a direct-acting, balanced spool directional mechanism. It employs a closed transition between positions to significantly minimize oil loss during shifting, which is particularly beneficial in pilot control circuits. This valve is designed with port 3 as the inlet and port 1 as the tank; while reverse flow is feasible, it may not maintain optimal performance and is generally not advised. The solenoid tube assembly of the DNCALSN836 is fatigue-rated for service up to 5000 psi (350 bar), allowing for high-pressure applications without requiring minimum hydraulic pressure for operation. The valve incorporates EPDM seals suitable for systems using phosphate ester fluids but are incompatible with petroleum-based fluids. The wet armature design allows the working fluid to surround the armature, which can affect function if exposed to prolonged coil heat\u2014this is particularly relevant when using water-glycol mixtures. The solenoid's magnetic design ensures efficient operation with high spool actuating force per watt consumed, promoting reliable valve shifting. Various coil termination and voltage options are available, including configurations with surge protection; coils are interchangeable within Sun Series 1 solenoid products and can be mounted in either direction. Coil connector options provide protection ratings up to IP69K, and additional weatherized options offer enhanced environmental protection. The DNCALSN836 features Sun's floating style construction to reduce internal binding risks from excessive installation torque or machining variations. It supports a capacity of 8 gpm (30 L/min) and operates at a maximum pressure of 5000 psi (350 bar). Typical response time stands at 50 ms, with maximum leakage at 10 in\u00b3/min at 3000 psi (160 cc/min at 210 bar). The valve supports a switching frequency of up to 15,000 cycles per hour and requires manual override force of approximately 5 lbs/1000 psi (33 N/100 bar Port 1).