KRACHT AS8 Series Monitor Model Example

Brand

KRACHT/Germany KRACHT

Application Areas

Environmental Protection, Chemical Industry, Agriculture, Forestry, Animal Husbandry and Fishery, Petroleum, Road/Rail/Marine

KRACHT Secondary Instruments, KRACHT Displays, KRACHT Flow Meters, KRACHT Pumps, KRACHT Flow Counters, KRACHT Valves

KRACHT, founded in 1911, is a world-renowned manufacturer of fluid control products. Its main products include hydraulic systems, KRACHT flow meters, hydraulic units, hydraulic motors, calibration valves, stack valves, directional valves, proportional valves, butterfly valves, pressure reducing valves, cylinders, oil cylinders, centrifugal pumps, transfer pumps, hydraulic engine pumps, gear pumps, low-pressure transfer pumps, high-pressure gear pumps, and gear motors.

KRACHT Secondary Instrument AS8 Series Selection Reference Table

The German KRACHT indicator AS8-U-230 features two programmable relays, one analog output, or one RS 232 serial interface for external reprocessing.

The standard features of the KRACHT AS8 version are as follows:

1. The AS 8 standard specification is a display and control device for dynamic flow and volume measurement. Settings are made via three buttons. These buttons are visible after removing the panel, or in the F specification, they can be set via a membrane keypad.

2. Unit switching is achieved via DIP switches. The DIP switches are located on the back of the panel.

3. It features two programmable relays, one analog output, or one RS 232 serial interface for external reprocessing.

4. It can be directly connected to the flow meter via an integrated 24 VDC sensor power supply.

5. Optional embedded, benchtop, or 19; slot type.

Accuracy Characteristics:

1. KRACHT's accuracy data refers to the geometric product Vgz, which is the percentage offset from the current value for each condition.

2. The linearity error across the entire measurement range is <±0.1%.

3. The repeatability of measured values ​​is <0.1%.

4. Accuracy testing is part of quality inspection under various conditions.

5. Test results can be output and archived in the form of accuracy characteristic curves as required.

6. The accuracy values ​​involved in KRACHT are approved by DKD (German Federal Institute of Metrology).

General Characteristics:

Design: Gear motor

Connection Type: Plate mounting/pipe connection

Installation Position: Arbitrary

Flow Direction: Bidirectional

Viscosity: 1-1000000mm²/s, varies between series

Maximum Pressure Drop: Δpmax -16 bar

KRACHT relief valves are used in industrial hydraulic applications, such as petroleum, chemical, machinery, wind power, and mining. KRACHT relief valves are hydraulic pressure control valves. In hydraulic equipment, they mainly function as constant pressure relief valves, pressure stabilizers, system unloading valves, and safety protection valves. A small-flow solenoid valve is connected in series with the remote control port of the relief valve. When the solenoid is energized, the remote control port of the relief valve is connected to the oil tank, and the hydraulic pump is unloaded. The relief valve then functions as an unloading valve.

Safety protection function: The valve is closed during normal system operation. It only opens to relieve pressure when the load exceeds the specified limit (system pressure exceeds the set pressure), providing overload protection and preventing further pressure increase (typically, the set pressure of the relief valve is 10%–20% higher than the system's highest working pressure). In practical applications, it is generally used as an unloading valve, a remote pressure regulating valve, a high/low pressure multi-stage control valve, a sequence valve, and to generate back pressure (connected in series in the return oil line). Relief valves generally have two structures: 1. Direct-acting relief valve; 2. Pilot-operated relief valve. The main requirements for relief valves are: large pressure adjustment range, small pressure adjustment deviation, small pressure fluctuation, sensitive operation, large overload capacity, and low noise.

The following are some models of the SPVF series direct-acting relief valves:

SPVF32K1G1A02

SPVF25E2F1B07

SPVF50C2F1B12

SPVF80B2F1B20

SPVF50C1G1A02

SPVF40A1G1A02

SPVF40D1G1A02

SPVF32K2F1B02

SPVF80B1G1A02

SPVF40D2F1B05

SPVF40A2F1B25

SPVF20A1G1A05

KRACHT Secondary Instruments

KRACHT Displays

KRACHT Flow Meters

KRACHT Pumps

KRACHT Flow Counters

KRACHT Valves

Structure of Kracht SPV/SPVF Direct-Acting Valves

The sliding piston 2 is pressed against the annular region a by the compression spring 3. Therefore, the p port, which communicates with the pump, and the R port, which communicates with the oil tank, are separated by a seal at diameter D. Once the working pressure reaches the pressure set by adjusting screw 4, the sliding piston 2 begins to unload hydraulic oil into the oil tank. The spring chamber b is pressure compensated by orifice c. Initially, the spring chamber b must be vented through the vent hole 5 (hexagonal screw). The valve is best installed vertically so that the pressure setting is vertically downward. This relief valve has four pressure adjustment ranges because the spring compression ratio determines that each spring can only cover a limited pressure adjustment range.

The company mainly deals with European and American brands and can source brands from any European country. For example, our key German brands include: BURKERT, DEMAG, HAWE, REXROTH, HYDAC, PILZ relays, FESTO, IFM sensors, E+H, HEIDENHAIN, P+F sensors, SICK, TURCK, and HIRSCHMANN industrial switches. German brands: Hengstler, Murr, Schmersal, Samson, EPRO (Emerson Group)

American brands: MOOG, ASCO, MAC, NUMATICS, PARKER, VICKERS, ROSS

British brands: Norgren

Italian brands: OMAL, ATOS, CAMOZZI, UNIVER, Camozzi