This product is mainly applied to the lifting hydraulic circuit of oil motor such as the lifting mechanism of hydraulic mobile crane (primary and auxiliary winches), hydraulic lifting winch of a ship, hydraulic deck crane, hydraulic fishing machinery of a fisher and hydraulic winch of an engineering ship together with variation amplitude and stretching & withdrawing oil cylinder circuits. It is a typical and pivotal hydraulic element of the lifting hydraulic circuit of all open-type systems.
Basic parameters:
1. Nominal diameter DN=25;
2. Rated working pressure PH=25MPa;
3. Rated flow QH=250L/min;
4. Max flow Qmax=450L/min;
5. Control pressure 2.3-7MPa; opening pressure of check valve ≥0.2MPa.