What is the function of a check valve?
The Check Valve block represents a hydraulic check valve as a data-sheet-based model. The purpose of the check valve is to permit flow in one direction and block it in the opposite direction. The following figure shows the typical dependency between the valve passage area A and the pressure differential across the valve Δ p = p A − p B,.
What should the pressure be on a hydraulic check valve?
Allow the oil temperature to reach the predetermined value. Usually choose 32 oil, 40 °C. Adjust the relief valve, release to maximum loose condition, and pressure gauge should show no pressure at the moment. 1. Turn on the hydraulic power source (The electric motor drives the hydraulic motor to establish the pressure)
How can I tell if my PCV valve is blocked?
Another way to test for vacuum is to pinch or block the vacuum hose connected to the PCV valve. Idle speed will drop between 40 to 80 rpm, and then rise back to normal. If not, look for a blocked or restricted vacuum hose or valve.
When do you use a piston check valve?
A piston check valve is, in effect, a lift check valve, whereby flow enters from under the seat. The piston check valve is used in applications where dependable sealing is paramount and it is ideal for low flow rates. Piston check valves are also highly customizable.
Another way to test for vacuum is to pinch or block the vacuum hose connected to the PCV valve. Idle speed will drop between 40 to 80 rpm, and then rise back to normal. If not, look for a blocked or restricted vacuum hose or valve.
Where is the idle check valve on a high pressure pump?
The upper check valve is the high pressure pump relief and should also have a return line. The fuel line from the pump should be connected to the fitting marked “IN”. The line to the port nozzles should be connected to the fitting marked “PORT”. The idle check valve should be installed where the block is marked “OUT”.
Where is a hydraulic check valve plug in?
The plug-in type (Like Logic Valve) is a hydraulic check valve installed inside the cavity of integrated valve block. It is not exposed outside the valve block, this plug-in valve completely enters the inside of the valve block.
Where is the ABC pressure limiting valve located?
On the bottom of the ABC pressure limiting valve is the oil pressure sensor and on top a pulsation damper which smoothens out the pressure fluctuations of the system.