Rexroth HED8OH-2X/100
Efficient Hydraulic Pressure Switch
Rexroth HED8OH-2X/100 Efficient Hydraulic Pressure Switch For
Overvoltage Category 3 Insulation Coordination
Product Description:
The hydro-electric pressure switch type HED 8 is a piston type
pressure switch. It is composed of housing, 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 is applied to the piston by
a nozzle, while being supported by a spring plate and compressed by
an adjustable force of the compression spring. Then the spring
plate will transmit the movement of the piston to the micro switch,
activating it when the set pressure is achieved. This allows the
electric circuit to be switched on or off as required. A mechanical
positive stop of the spring plate is also present for protecting
the micro switch from sudden pressure drop and excessive
overpressure.
Notice: In order to maintain the service life, the pressure switch
should be mounted on a secure surface with fewer vibrations and
protected from potential hydraulic pressure surges.
Features:
High Pressure Stackable SubplatesOur subplates are designed for the flange connection according to
ISO 16873 and as vertical stacking elements in connection with
sandwich plates according ISO 4401. They come in 5 pressure ratings
and 4 adjustment types: spindle with, or without, a protective cap;
spindle with scale, with, or without, a protective cap; rotary knob
with scale; and a lockable rotary knob with scale.
For electrical connection, there is the option of large cubic
connectors and M12 x 1 connectors. Additionally, our subplates come
with a micro switch with both NC/NO contact functions, allowing for
potential-free switching of currents from 1 mA to 2 A. We also
offer UL approval for pressure ranges up to 350 bar.
Technical Parameters:
| hydraulic |
| Pressure rating | bar | 50 | 100 | 200 | 350 | 630 |
| Maximum operating pressure | | | | | | |
| NBR/FKM seals | bar | 350 | 350 | 350 | 400 | 630 |
| MT version | bar | 315 | 315 | 315 | 315 | – |
| Pressure adjustment range (decreasing) | bar | 5...50 | 10...100 | 15...200 | 25...350 | 40...630 |
| Pressure differential per rotation 1) | bar | ≈19 | ≈35 | ≈77 | ≈120 | ≈214 |
| Hydraulic fluid | Mineral oil (HL, HLP) according to DIN 51524 2);
fast biodegradable hydraulic fluids according to VDMA 24568
(see also RE 90221); HETG (rape seed oil) 2); HEPG (polyglycols)
3);
HEES (synthetic esters) 3); HVLP 4); HFC 5); other hydraulic fluids
upon request |
| Hydraulic fluid temperature range | °C | –25 to +80 (for NBR seals)
–20 to +80 (for FKM seals)
–40 to +80 (low-temperature seals) |
| Viscosity range | mm² /s | 10 to 800 |
Maximum permitted degree of contamination of the
hydraulic fluid - cleanliness class according to ISO 4406 © | Class 20/18/15 6) |
| Load cycles | ≥ 5 million |
Applications:
Petroleum and Chemical Production
Pressure relays play a very important role in petroleum and
chemical production. They are used to monitor pressure changes in
containers and pipelines, quickly trigger alarm devices or
automatic control valves in case of emergency, and in this way,
help to maintain the safety and stability of production process.
Pharmaceutical Field
In the pharmaceutical industry, pressure relays are used to monitor
the pressure of pharmaceutical equipment in real time. When
abnormal pressure fluctuations happen, the relays will immediately
take corresponding measures, like closing valves or starting
emergency pumps, to prevent damage and ensure product quality.
Food Processing and Packaging
Pressure relays are also applied in the field of food processing
and packaging. Through them, pressure status of production
equipment can be monitored, making sure that products are produced
and packaged under the most suitable pressure conditions, thus
increase production efficiency and product quality.
Support and Services:
Hydraulic Control Valve Technical Support & Services
Our Hydraulic Control Valve products are backed by our technical
support team, who are available to provide advice and assistance
whenever needed. We have trained professionals who can help you
choose the right Hydraulic Control Valve for your needs, as well as
provide troubleshooting and maintenance advice. Our technical
support team can also help you with any additional questions you
may have about our products.
We offer a range of services to ensure your Hydraulic Control Valve
is running smoothly. We provide maintenance and repair services, as
well as installation and commissioning services. We can also
provide you with spare parts and accessories, ensuring that you
have all the necessary components to keep your Hydraulic Control
Valve running at its best.
Our team is available to answer any questions you may have about
our Hydraulic Control Valve products. Our knowledgeable staff can
help you choose the right product for your needs, as well as
provide troubleshooting and maintenance advice. We are dedicated to
providing quality customer service and technical support to ensure
that you get the most out of your Hydraulic Control Valve.
Packing and Shipping:
Packaging and Shipping Hydraulic Control Valve:
- Packaging: The hydraulic control valve is securely packaged in a
cardboard box with foam inserts to prevent any damage.
- Shipping: The hydraulic control valve is shipped via an insured and
reliable carrier to ensure safe delivery.
FAQ:
- Q1: What is the Brand Name of your Hydraulic Control Valve?
- A1: Our Hydraulic Control Valve is branded Rexroth.
- Q2: What is the Model Number of your Hydraulic Control Valve?
- A2: Our Hydraulic Control Valve Model Number is HED8OH-2X/50.
- Q3: Where is the place of origin of your Hydraulic Control Valve?
- A3: Our Hydraulic Control Valve is made in China.
- Q4: What is the certification of your Hydraulic Control Valve?
- A4: Our Hydraulic Control Valve is certified with CE.
- Q5: What are the Minimum Order Quantity and Price for your
Hydraulic Control Valve?
- A5: The Minimum Order Quantity of our Hydraulic Control Valve is 1
piece and the Price is negotiable.
