SUN HYDRAULICS
SXCALCN

***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 SXCALCN (Material Number: SXCALCN) is a direct-acting sequence valve designed to supply a secondary circuit with flow once the pressure at inlet port 1 exceeds the valve setting. It controls the pressure at port 1 relative to the drain port 3, and all three-port sequence cartridges are interchangeable for a given frame size. This zero pilot flow valve requires that port 3 be connected to maintain a pressure reference in the control chamber, as blocking it will lead to malfunction due to reciprocating seal weepage. The pressure at port 3 adds directly to the valve setting at a 1:1 ratio, with a maximum allowable pressure of 5000 psi (350 bar). This makes it suitable for load-holding applications. The cartridge is corrosion-resistant, available with external stainless steel components or zinc-nickel plating. It features Sun's floating style construction, which minimizes binding due to installation torque or machining variations. The SXCALCN has a cavity T-11A Series 1 and can handle capacities up to 15 gpm (60 L/min). Factory pressure settings are established at 2 in/min (30 cc/min), with a maximum operating pressure of 5000 psi (350 bar) and typical response time of 2 ms. Maximum valve leakage at reseat is limited to 10 drops/min (0.7 cc/min). The adjustment number requires clockwise turns up to four for increasing settings, with installation torque between 30-35 lbf-ft (41-47 Nm). The adjustment screw has an internal hex size of 5/32 in. (4 mm), while the locknut hex size is 9/16 in. (15 mm) with torque specifications of 80-90 lbf-in (9-10 Nm). Model weight is approximately .30 lb (.15 kg), and Viton seal kits are available under part number: 990011006.