Selling German E+H ultrasonic level gauge FMU30-AAHEABGHF

Selling German E+H ultrasonic level gauge FMU30-AAHEABGHF

The German E+H ultrasonic level gauge FMU30-AAHEABGHF is installed at the end of the valve group opposite to the pump connection interface. In a system with multiple valve groups, the load sensing connections should be connected in series, and the position of the throttle should be as far away as possible. In the middle inlet valve group, the connection from the load sensor to the pump should be on one end cover, and the discharge throttle should be located in the opposite direction of the end cover. When the port pressure is higher than the actuator oil port pressure and the outlet throttle servo mechanism is pilot opened, the outlet throttle seat valve will remain closed. In this case, the throttle in the control cover gasket is located in this channel between the relief valve seat spool and the inlet throttle spring chamber (in the electro-hydraulic type, it is located between the relief valve seat spool and the pressure reducing valve).

The flow rate through throttling from the overflow valve establishes pressure on the overflow valve side and is directly transmitted to the outlet throttling plunger, which then opens the outlet throttling servo mechanism and outlet throttling seat valve. The water level gauge sensor part uses an optical path coupling adjustment device connected to an optical cable to transmit the optical signal carrying water level information. The control circuit terminal part uses laser modulation technology to send modulated laser signals with different functions. Through modulation, comparison, and detection, accurate information about the water level is obtained. This principle enables full process optical measurement without using any charged components outdoors, which can eliminate static electricity hazards and prevent lightning strikes. Also known as a contact type water level gauge, it uses an electric measuring needle on a heavy hammer to contact the water surface and emit an electrical signal, causing the motor to rotate forward or backward and track the position of the water surface point at any time, thereby measuring the water level

Selling German E+H ultrasonic level gauge FMU30-AAHEABGHF

Install iron pipes on steep bank slopes, with suspended hammers and cables lifting and lowering within the pipes to drive recording or signaling devices. The iron pipe inlet needs to have sedimentation and static water facilities. Measure water pressure and calculate water level. Its characteristic is that there is no need to build static water logging, and the centerline of the glass tube should be concentric with the centerline of the water level gauge steam and water plug to prevent the glass tube from breaking due to twisting stress. In order to prevent injury caused by glass tube explosion, a water level gauge with a steel ball is equipped with a ball explosion force in the plug to automatically close the steam and water plugs. At the same time, protective covers should be installed. Protective covers are generally made of thick, heat-resistant tempered glass panels. If a protective cover is made of iron sheet, there should be a gap of 12-15mm wide on both the front and back walls of the cover in the direction of observing the water level

Its length should be slightly larger than the length of the glass tube. The sensor can be fixed at the bottom of the river, and atmospheric pressure can be eliminated with a pressure pipe to directly measure the water level. There are two types of pressure type water level gauges. One type is bubble type, which continuously delivers gas in the pressure pipe and uses an automatically adjustable pressure balance to convert water pressure into mechanical rotation angle, thereby driving the recording mechanism. Another type is the electrical measurement type, which uses solid-state piezoresistive devices as sensors to release pressure in the actuator oil port. The set value of the overflow valve can be limited by the throttle port in the gasket outlet throttle seat valve to restrict the flow away from the spring chamber, so the pressure in the spring chamber is almost equal to the pressure at the fuel tank port.

Because the pressure at the actuator port is lower than the pressure at the tank port, the force on the annular area of the outlet throttle seat valve (caused by the actuator port pressure) is opposite to the force in the spring chamber (caused by the tank port pressure). Special outlet throttle seat valves with one-way valves are available, which can prevent reverse fluid flow from entering the outlet throttle spring chamber and then cannot control the closure of the outlet throttle seat valve. The pressure drop through each plate is caused by the flow in the load sensing channel to the load sensing discharge throttle valve. The cumulative effect of pressure drop through each plate is significant, especially at higher load sensing pressures, higher oil viscosity, and when many plates are used, higher load sensing pressures result in larger discharge flow rates and higher oil viscosity

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