EO-DUR Progressive Ring DPR for stainless steel fittings is a key element to produce the high pressure, leak-free connections of tubes, components in hydraulic systems for reliable, trouble-free functioning of the entire units. With its basic function, the controlled progressive bite of EO-DPR into the tube, due to its unique internal geometry, is perfect for a broad range of applications, markets.
Markets:
• Automotive
• Defence
• Energy
• Environment
• Industrial
• Infrastructure
• Machine Tools
• Material Handling
• Mobile
• Oil and Gas
• Power Generation
• Process
• Transportation
• Water

Features/benefits of the EO-DPR fitting range:
• Field assembly: EO progressive ring fittings can be assembled anywhere with just a couple of wrenches. For stainless steel tube simple presetting tools are available. No additional equipment or machine is required, so that costs can be minimized.
• Silver plated threads: All threads of the EO-DUR stainless steel nuts are surface treated to reduce the tightening torques by 40% compared to non thread products. This feature simplifies the assembly process and reduces the assembly time.
• Available sizes: Most EO fittings are available in 25 sizes from 4 to 42 mm tube OD. Additional reducers allow optimum dimensioning of each individual fluid line. This saves space and material costs.
• EO-LUB: Due to the special treatment of larger sized nuts (25S/28L and larger), the tightening torques of EO-PSR fittings have been reduced by 25%. This feature Eases and speeds up assembly. Prevents under-assembly.
• Over-tightening protection: The special geometry of the EO-DPR prevents the over-assembly of EO-DPR fittings. Helps to avoid cost and time-consuming repair.
• Spring effect: Cost reduction because of the spring effect; re-tightening of the fitting is not necessary.
• Safe assembly: Maximum safety of assembly - two distinctive cutting edges provide a progressive increase of the tightening torque of the EO-DPR. The noticeable end point of the assembly process contributes to maximum safety of assembly.
• Multifunctional ring geometry - prevents over-tightening and additional costs for repair.
• Procurement is easy and fast. EO-DPR is available worldwide.
• Fast, easy and safe assembly - meets the requirements of the applicable standards for 24° cutting ring fittings.

Applications:
• Mobile hydraulics – hydraulic drive units, working hydraulic systems
• Power Generation – compressor stations in gas pipelines

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