Overload protection on hydraulic system is provided by the use of （）.
A: stop valves
B: pressure relief valves
C: balance valves
D: regulating speed valve
A: stop valves
B: pressure relief valves
C: balance valves
D: regulating speed valve
举一反三
- Which of the following hydraulic control valves belongs to pressure control valve （ ）. A: Unloading valve B: overflow throttle valve C: Hydraulic control check valve D: Low pressure selector valve
- The starting air system usually has （） to prevent starting if anything is not in order. A: stop valves B: interlocks C: non-return valves D: air vent
- Diesel engine air start system check valves are opened by （） A: an air start cam B: cylinder compression pressure C: starting air pressure D: valve spring
- In structure, all hydraulic control valves consist of______ , ______ (spool, cone or ball) and ______ used to control the valve core.
- The commonly used pressure control valve in hydraulic transmission system is ( ) A: directional valve B: relief valve C: hydraulic control check valve