... ester and are designed for high-pressure dynamic applications such as hydraulic cylinders. Hydraulic seals usually need to be higher ... maximum operating temperature, maximum operating pressure and the vacuum rating. 9) When ordering hydraulic seals you will want to know ... , TCL, SCY, SCJY, VSB, SB2, HTBW, HSC Hydraulic pump high pressure appropriative seal:TCN,TCV Metallurgy appropriative seal: SB, MOY ...