Automotive
Construction
Agriculture
Livestock
Planting
Spray
Straight Male Adapter JIC x BSP
If your goal is to maximize fleet efficiency, minimize downtime, and ensure rapid component replacement, rely on Helesul quality. Discover how our adapters can make a real difference in the field and on the road.
- Technical Details
- Applications
- Size Chart (JIC)
- Size Chart (BSP)
- Standards met: ISO 6149 and SAE J514;
- Maximum operating pressure: 420 bar (6,000 PSI);
- Operating temperature: -20°C to +100°C;
- Body material: carbon steel;
- Surface finish: trivalent zinc plating;
- Certification: ISO 9001.
Agricultural implements
- Sprayer boom cylinders — precise opening/closing.
- Connections in harvester hydraulic controls — multiple simultaneous operations without pressure loss.
- Power steering systems in tractors — fast and stable response.
Road equipment
- Dump body tipping — withstand pressure spikes when lifting heavy loads.
- Side mowers and sweepers — consistent hydraulic flow for extended operations.
- Hydraulic brakes — enhanced safety with reliable sealing.
 |
Nominal Size |
External Thread (d) [mm] |
Internal Thread (D) [mm] |
|
7/16"-20 |
11,1 |
9,7 |
|
|
1/2"-20 |
12,7 |
11,3 |
|
|
9/16"-18 |
14,3 |
12,8 |
|
|
3/4"-16 |
19,1 |
17,3 |
|
|
7/8"-14 |
22,2 |
20,3 |
|
|
1.1/16"-12 |
27,0 |
24,7 |
|
|
1.3/16"-12 |
30,2 |
27,9 |
|
|
1.5/16"-12 |
33,3 |
31,0 |
|
|
1.5/8"-12 |
41,3 |
39,0 |
|
|
1.7/8"-12 |
47,6 |
45,3 |
|
|
2.1/2"-12 |
63,5 |
61,5 |
|
|
BSP |
||
|
Nominal Size |
External Thread (d) [mm] |
Internal Thread (D) [mm] |
|
|
G 1/8"-28 |
9,7 |
8,6 |
|
|
G 1/4"-19 |
13,2 |
11,4 |
|
|
G 3/8"-19 |
16,7 |
15 |
|
|
G 1/2"-14 |
21 |
18,6 |
|
|
G 5/8"-14 |
22,9 |
20,6 |
|
|
G 3/4"-14 |
26,4 |
24,1 |
|
|
G 1"-11 |
33,3 |
30,3 |
|
|
G 1.1/4"-11 |
41,9 |
39 |
|
|
G 1.1/2"-11 |
47,8 |
44,9 |
|
|
G 2"-11 |
59,6 |
56,7 |
|
DKO (Double Cone O-ring) adapters use a double O-ring sealing system, while traditional JICs have only one sealing cone. The DKO system reduces leaks by up to 98% and offers a useful life 3 times longer, with tolerance to multiple assembly and disassembly without loss of efficiency.
A JIC hydraulic adapter is a standardized connection component that uses a 37° conical thread (according to ISO 6149). It connects hoses, cylinders and valves in hydraulic systems, ensuring metal-to-metal sealing without the use of rubber rings. Widely adopted in agricultural, road machinery and industrial equipment.
JIC uses a 37° conical thread and metal-to-metal seal, while standards such as SAE use cylindrical threads. JIC offers greater resistance to high pressures (up to 280 bar), lower risk of leaks under vibration and guaranteed international compatibility. Therefore, it is preferred in agricultural implements and equipment that operate in severe conditions.
The BSPP (Parallel) thread is cylindrical and its sealing depends on an O-ring housed in a recess. It is ideal for systems that require frequent assembly and disassembly. The BSPT (Conical) thread, in turn, seals due to the tightening and deformation of the threads themselves (metal-to-metal), being the preferred choice for high pressure applications and permanent installations under continuous vibration.
No. There are three completely different thread standards (BSP 55°, JIC 37°, SAE 45°). Mixing standards results in unsafe connections, leaks and permanent damage to components. Always check the standard of your system before any replacement. Although conversion adapters exist, they can introduce restriction points into the flow.
With correct installation, a BSP adapter can last more than a decade. Maintenance is simple: biannual visual inspections in search of leaks or corrosion, external cleaning and, in the case of BSPP, changing the O-ring whenever the connection is broken. Avoid over-tightening, which is one of the main causes of thread failure.
Use PTFE tape if the connection will be retightened periodically. Prefer anaerobic sealant for permanent sealing and greater vibration resistance.
JIC (Joint Industry Council) hydraulic adapters are essential components in fluid power transmission systems, ensuring secure and stable connections between hoses, cylinders, and valves. Widely used in agricultural machinery and road equipment, these adapters offer international standardization, simplifying maintenance and parts replacement. Their reliability and operational efficiency have made them the preferred choice of implement manufacturers and operators worldwide.
All Helesul hydraulic adapters are manufactured in accordance with ISO, SAE, and DIN standards, ensuring interchangeability, safety, and predictable performance in the field.
