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Rexroth HED8OH-2X/200
Efficient Flow Control with Hydraulic Control Valve
Rexroth HED8OH-2X/200 Efficient Flow Control With Hydraulic Control Valve Viscosity Range 10 To 800 Mm2/S
The Hydro-Electric Pressure Switch type HED 8 is a piston type pressure switch. It has a housing, an installation kit with piston, compression spring, adjustment element, and micro switch. When the pressure to be monitored is below the set pressure, the micro switch is operated. The pressure to be monitored is applied via the nozzle at the piston, while the piston is supported by the spring plate and acts against the continuously adjustable force of the compression spring.
The spring plate transmits the movement of the piston onto the micro switch and releases the latter when the set pressure is reached. Consequently, the electric circuit is switched on or off, depending on the circuit set-up. Also, the mechanical positive stop of the spring plate serves two purposes: it protects the micro switch in cases of sudden pressure drop from damage, and it prevents solid compression of the compression spring when there is overpressure.
Notice: In order to increase its service life, the pressure switch should be mounted with low vibrations and should be protected from hydraulic pressure surges.
This product is ideal for subplate mounting and pipeline installation. It is designed to work as a vertical stacking element in connection with sandwich plates according to ISO 4401. It is deployable in accordance with ISO 16873 in terms of flange connection. There are 5 pressure ratings to choose from and 4 adjustment types:
An electrical connection is available with large cubic connector and M12 x 1 connector. It also features a micro switch with NC/NO contact function and potential-free switching of currents from 1 mA to 2 A. Finally, the device also has UL approval for pressure ranges up to 350 bar.
| Technical data | ||
| Electrical connection / mating connector | K14 | EN 175301-803, 3-pole + PE |
| K35 | IEC 61076-2-101, M12 x 1, A-coding, 4-pole | |
| Protection class according to EN 60529 | K14 | IP 65 with mating connector mounted and locked |
| K35 | IP 67 with mating connector mounted and locked | |
| Maximum switching frequency | 1/h | 7200 |
| Switching accuracy (repetition accuracy) | < ±1 % of the set pressure | |
| Switches | According to VDE 0630-1/DIN EN 61058-1 | |
| Transition resistance | mΩ | < 50 |
| Insulation coordination | Overvoltage category 3 | |
| Contamination | Degree of contamination 3 | |
| Bounce time | ON/ms | < 5 |
| OFF/ms | < 5 | |
| Minimum current | mA | 1.0 with 24 V DC |
| Maximum current | A | 0.5 with 50 V DC, inductive 0.2 with 125 V DC, inductive 0.1 with 250 V DC, inductive 2.0 with 250 V AC |
In the field of petroleum and chemical production, pressure relays can monitor pressure changes in containers and pipelines, timely trigger alarm devices or automatic control valves, and ensure the safety and stability of the production process. In the pharmaceutical industry, pressure relays are responsible for real-time monitoring of the pressure of pharmaceutical equipment. Once abnormal pressure fluctuations occur, it can quickly take corresponding measures, such as closing valves, starting emergency pumps, etc., to prevent equipment damage and ensure drug quality. Moreover, in the food processing and packaging field, pressure relays can also monitor the pressure status of production equipment, ensuring that products are produced and packaged under suitable pressure conditions, thereby improving production efficiency and product quality.
At ABC Company, we take pride in the quality of our Hydraulic Control Valves and provide technical support and service to ensure your product functions optimally. Our technical experts are experienced in the installation, maintenance, and repair of hydraulic control valves, and can provide the following services:
For more information on our Hydraulic Control Valve Technical Support and Service, please contact us at info@ABCCompany.com or call us at (888) 555-5555.
A1: Rexroth.
A2: HED8OH-2X/50.
A3: China.
A4: CE.
A5: 1.
