Product Description:
Rexroth pressure relays (such as the HED8OA-20/350K14), as core components for hydraulic-to-electrical conversion, offer the following advantages, features, and precautions for use:
Advantages
High Precision and Stability: Rexroth pressure relays utilize a precision mechanical structure, offering a wide pressure regulation range (e.g., 350 bar), high sensitivity, short actuation times (fast rise/fall times), and high repeatability.
Reliability and Durability: Products undergo rigorous testing, and sealing materials (such as NBR/FKM) are suitable for various operating conditions. They withstand high temperatures and high pressures, ensuring a long service life.
Standardized Design: Electrical connections comply with DIN EN 175301-803, ensuring easy installation and strong compatibility.
Diverse Functions: They can be used for safety protection, pump start/stop control, and sequence control, including hydraulic cylinder pressure control and pump unloading protection.
Precautions for Use
Correct Installation Location: Install in locations with significant pressure fluctuations (e.g., in the oil inlet line). Avoid installation in the oil return line, which could result in activation failure.
Regular Maintenance: Check key components such as seals and pressure taps to prevent oil leaks and pressure measurement errors.
Matching: Select the model corresponding to the system pressure level (e.g., 350 bar corresponds to 350K) to avoid malfunctions due to pressure range mismatches.
Environmental Compatibility: Special sealing materials (such as FKM) may be required for high-temperature or corrosive environments.
It is recommended to prioritize genuine products to avoid performance instability due to component quality variations.
| Enclosure Rating | NEMA 4X |
| Theory | pump accessories |
| Terminals | #8-32 screws, 1/4 |
| Quality | OEM |
| Operating Temperature Range | -40°F to 180°F |
| Electrical Connections | 1/4 |
| Enclosure Type | NEMA 4X |
| Fuel | Electricity |
| Temperature Range | -40°F to 257°F |
| Color | GREEN |
FAQ
Q1: Wonder if you accept small orders?
A1: Do not worry. Feel free to contact us .in order to get more orders and give our clients more convener ,we accept small order.
Q2: Can you send products to my country?
A2: Sure, we can. If you do not have your own ship forwarder, we can help you.
Q3: What's your payment terms ?
A3: By T/T,LC AT SIGHT,100% full payment.
Q4: How long is your production lead time?
A4:It depends on product and order qty. Normally, it takes us 15 days for an order with MOQ qty.
Q5: When can I get the quotation ?
A5: We usually quote you within 24 hours after we get your inquiry. If you are very urgent to get the quotation.Please call us or tell us in your mail, so that we could regard your inquiry priority.
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Rexroth HED30A 40 200 Pressure Relay High Precision Stability New Original Images
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