Automotive
Construction
Agriculture
Livestock
Planting
Spray
UNF REDUCING Adapter M/F
Any connection failure can result in costly downtime, productivity losses, and safety risks.
This is where Helesul DKO (Double Cone O-ring) hydraulic adapters stand out as the strategic choice for manufacturers and operators who do not compromise on reliability, delivering a robust solution built on versatility, superior sealing, and global compatibility.
- Technical Details
- Applications
- Size Table
- Applicable standards: DIN 2353 (L, S) / ISO 8434-1;
- Outside diameters: 6 mm – 42 mm (metric tubing);
- Maximum operating pressure: 420 bar (6,000 PSI);
- Working temperature: -40°C to +120°C;
- Body material: carbon steel;
- Surface finish: trivalent zinc plating;
- O-ring: NBR 90 Shore A;
- Certification: ISO 9001.
Harvesters and agricultural sprayers
In articulated boom circuits and hydraulic controls exposed to constant vibration and uneven terrain, DKO hydraulic adapters maintain stable sealing, mitigate soil oil contamination, and reduce corrective interventions. The dual seal tolerates the rapid cycles and pressure spikes typical of field maneuvers, preserving system efficiency.
Tractors and soil preparation implements
In the cylinders of reversible plows, leveling harrows, and subsoilers, the 24° profile with O-ring provides a robust connection against impacts and cyclic loads, ensuring precise actuation responses. Torque repeatability decreases loosening and sustains productivity during extended work shifts.
Dump trucks and road vehicles
During the tipping of dump bodies and platforms, DKO fittings contribute to a safe and continuous operation, maintaining total sealing throughout repetitive cycles. Resistance to high torque helps preserve assembly integrity after periodic maintenance and inspections in road fleets.
Mowers and side sweepers
Exposed to dust, debris, and thermal variations, articulated arm systems benefit from the resilient sealing of the O-ring and conical seat, reducing micro-leaks and maintaining stable pressure. This extends maintenance intervals and optimizes equipment availability.
Presses and compactors
In machines with constant high pressure, the dual seal prevents progressive fluid losses that degrade force and speed. The result is a more consistent cycle, lower oil consumption, and better hourly throughput, particularly in continuous industrial operations.
|
|
Nominal Size |
Bore (D) [mm] |
|
5/16"-24 |
7,9 |
|
|
3/8"-24 |
9,5 |
|
|
7/16"-24 |
11,1 |
|
|
1/2"-20 |
12,7 |
|
|
9/16"-18 |
14,3 |
|
|
3/4"-16 |
19,0 |
|
|
7/8"-14 |
22,2 |
|
|
1.1/16"-12 |
27,0 |
|
|
1.3/16"-12 |
30,2 |
|
|
1.5/16"-12 |
33,4 |
|
|
1.5/8"-12 |
41,3 |
Use PTFE tape if the connection will be retightened periodically. Prefer anaerobic sealant for permanent sealing and greater vibration resistance.
In agricultural hydraulic circuits, sealing failures can halt a harvester in the middle of harvest and generate high maintenance costs. The dual sealing system with O-ring helps eliminate leaks even under intense vibration and pressure spikes, reducing unplanned downtime and fluid loss by up to 95% when installed according to specifications.
The self-centering 24° cone speeds up assembly by up to 40% compared to conventional fittings, reduces rework, and improves torque repeatability.
Helesul DKO (Double Cone O-ring) hydraulic adapters are engineered for high-reliability sealing in high-pressure hydraulic systems, combining a self-centering 24° cone and O-ring for consistent performance in agricultural machinery and road applications.
With robust construction, they reduce leaks, simplify assembly, and increase equipment availability even under vibration, intensive cycles, and harsh environments.
All Helesul hydraulic adapters are manufactured in accordance with ISO, SAE, and DIN standards, ensuring interchangeability, safety, and predictable performance in the field.
