SUN HYDRAULICS
SCCALBE

***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 SCCALBE (SCCALBE) is a direct-acting sequence valve equipped with a reverse flow check, designed to supply a secondary circuit with flow once the inlet port 1 pressure exceeds the valve's set point. This valve includes an integral check valve that allows reverse flow from port 2 to port 1. The sequence valve's pressure setting controls the pressure at port 1 relative to the drain port 3, which must be connected to maintain proper pressure reference in the control chamber. Blocking port 3 may lead to malfunction due to reciprocating seal weepage. The pressure at port 3 adds directly to the valve setting at a 1:1 ratio and must not exceed 5000 psi (350 bar). This valve is suitable for load-holding applications and features interchangeable cartridges across all three-port sequence models, maintaining consistent flow paths and cavity sizes for given frame sizes. Cartridges with EPDM seals are intended for phosphate ester fluid systems, as exposure to petroleum-based fluids will damage these seals. Corrosion-resistant options are available with external stainless steel or zinc-nickel plating, identified by model code suffixes AP or LH, respectively. The SCCALBE incorporates Sun's floating style construction, minimizing internal part binding risks due to installation torque or machining variations. It fits into T-11A cavities and supports a capacity of up to 15 gpm (60 L/min), with factory pressure settings established at 2 in\u00b3/min (30 cc/min). The maximum operating pressure is rated at 5000 psi (350 bar), with typical response times of about 2 ms and maximum leakage of 10 drops/min (0.7 cc/min) upon reseat. The check cracking pressure is set at 40 psi (2.8 bar), with adjustments made via clockwise turns of up to five complete rotations for increased settings. Installation torque ranges between 30 - 35 lbf ft (41 - 47 Nm), while locknut torque is specified between 80 - 90 lbf in (9 -10 Nm).