High Pressure Quick Release Hydraulic Coupling Stainless Steel Hydraulic Hose Fittings

Product Description

High Pressure Quick Release Hydraulic Coupling Stainless Steel Hydraulic Hose Fittings

Product Description

 

Name	CNC machined parts
Available materials	Steel, Aluminum, Alloy ,Brass, Copper, Bronze, Nylon, Acrylic etc
Process	CNC milling and turning, drilling, grinding, bending, stamping, tapping
Tolerance:	0.005mm~0.1mm
Surface Roughness	Ra1.6-3.2
DRW format	PDF/DWG/IGS/STP/ etc
Equipment	CNC machining center, CNC turning, General milling machines.
Capacity:	10,000pieces per month
MOQ:	100pcs
Machining Scope:	1). Equipment/Machinery 2). Medical & Technological parts  3). The Automotive/motorcycle parts 4). The telecommunication parts 5). The power tool parts  6). Bicycle parts 7). The agricultural parts  8). Hardware
QC System:	100% inspection before shipment
Payment term	T/T ,Pay Pal, West Union
Surface treatment	Anodizing, zinc/chrome/nickel/silver/gold Plating, Polish, Imitation, , Heat treatment etc
Lead time	7-25days according to order Qty
Shipment Terms:	1) 0-100kg: air freight priority
	2) >100kg: sea freight priority
	3) As per customized specifications
Packing	1. Prevent from damage. 2. As customers' requirements, in perfect condition. 3. Send the sample by express, 3~5 days door to door service.
Note:	All parts are custom made according to customer's drawings or samples, no stock. If you have any parts to be made, please feel free to send your kind drawings/samples to us.

Specifications
1 Over 15 years factory experience
2 High quality control,Competitive price, Fast delivery
3 Small quantity acceptable
4 Sample and drawing available
5 OEM workable
6 One-stop service


Inspections:
3D instruments, 2D instruments, Projectors, Height Gauges, Inner diameter dial indicators, Dial gaues, 
Thread and Pin gauges, Digital calipers,Micro calipers, Thickness testers, Hardness testers Roughness 
testers, etc.( Detection accuracy to 0.001 millimetre )

1. Process: CNC machining.
2. Material: Aluminum,Aluminum alloy,Steel,Copper,Stainless etc.
3. Finish:  Anodized, powder coating, plating or customer specified.
4. Parts including: aluminum housing / enclosures, aluminum front panel, aluminum flange,
custom made caps and so on.
5. Free sample is available.


 Materials Available:
 1. Stainless Steel: SS201, SS303, SS304, SS316 etc.
 2. Carbon Steel: AISI 1045, 9SMnPb28 etc
 3. Brass:C36000 (C26800), C37700 (HPb59), C38500(HPb58), C27200(CuZn37), C28000(CuZn40) etc.
 4. Bronze: C51000, C52100, C54400, etc.
 5. Iron: grey iron and ductile iron
 6. Aluminum: 6061, 6063,7075,5052 etc.

Packing:
1: Shrink film+ bulk loading
2: Shrink film +Carton box + Pallet/ wooden case
3: PP + Wooden case
4: As per customers' requirements or negotiated

         How to order:  
         * You send us drawing or sample.
         * We carry through project assessment.
         * We give you a design.
         * You think the design is ok.
         * We make the sample and send it to you.
         * You think the sample is good then place an order and pay us 30% deposit.
         * We start to make the product.

1. What is a hose assembly or hose joint?

A hose assembly (commonly called a hose joint) is a complete, ready-to-install unit consisting of a flexible hydraulic hose, permanent fittings (ferrules) on each end, and sometimes protective sleeves or covers. It is used to convey hydraulic fluid between components in a system.

2. What are the main components of a hose assembly?

• Hose: The flexible inner core and reinforcement layers that carry the fluid.

• Fittings/Ferrules: The metal end pieces (e.g., JIC, NPT, ORFS, flange) that are crimped or permanently attached to the hose to allow for connection to system ports.

• Optional: Protective sleeving (e.g., spiral guard), identification tags, heat shields.

3. What are the main types of hydraulic hose fittings (joint ends)?

• JIC (Joint Industry Council) / SAE 37° Flare: A 37-degree flared sealing surface common in mobile and industrial equipment.

• NPT / NPTF (National Pipe Tapered): A tapered thread that seals by thread interference. Requires sealant.

• ORFS (O-Ring Face Seal): Uses a flat face with an O-ring in a groove for a highly reliable, leak-free seal.

• SAE O-Ring Boss (ORB / SAE Straight Thread): A straight-threaded fitting that seals with an O-ring against a boss.

• Metric (DIN / BSPP / BSPT): Common in European and Asian equipment.

• Flange Connections: For high-pressure, large-diameter applications.

4. How do I select the right hose assembly?

Consider these Six Key Factors:

1. Size: Match the hose Inner Diameter (ID) to required flow to minimize pressure drop and heat.

2. Pressure Rating: The hose Working Pressure must exceed the system's maximum operating pressure, including any surges. Minimum Burst Pressure is typically 4x the working pressure.

3. Temperature Range: Ensure the hose cover and tube materials are compatible with both fluid temperature and ambient temperature.

4. Fluid Compatibility: The hose inner tube material must be compatible with the hydraulic fluid used (e.g., petroleum oil, HFA, HFC, phosphate ester, biodegradable).

5. Application & Environment: Consider abrasion, UV exposure, chemicals, and whether the hose is stationary or in constant flexing motion.

6. Fitting Type & Thread: Must exactly match the port type, thread size, and sealing method of the components you are connecting.

5. Can I assemble my own hydraulic hose?

Yes, if you have the proper equipment and training. You will need:

• A hose crimping machine calibrated for the specific hose and fittings.

• The correct crimp dies.

• A hose cutter (not a saw) to make clean, square cuts.
  It is critical to follow manufacturer specifications for the specific hose/fitting combination. Improper crimping is a major safety hazard.

6. What causes hydraulic hose failure?

• Abrasion: Rubbing against surfaces (the #1 cause of failure).

• Improper Assembly: Incorrect crimp dimension or mismatched components.

• Excess Pressure: System overpressure or pressure spikes.

• High Temperature: Exceeding the hose's thermal rating, causing tube cracking.

• Chemical/Erosion Damage: Incompatible fluid or fluid contamination degrading the tube.

• Improper Routing: Tight bends, twisting, or incorrect length causing stress.

• Age and Weathering: Ozone/UV damage cracking the cover.

7. How should I route and install hose assemblies?

• Avoid Abrasion: Use clamps, sleeves, and proper routing away from sharp edges.

• Maintain Bend Radius: Never bend tighter than the hose's Minimum Bend Radius.

• Length: Ensure the hose is long enough to allow for movement and thermal expansion without tension, but not so long that it sags or creates loops.

• Avoid Twisting: Install without twisting the hose (align fittings before tightening).

• Tighten Fittings Properly: Use a torque wrench. Do not over-tighten. For JIC fittings, tighten to metal-to-metal contact plus an additional fraction of a turn.

8. What is SAE 100R? What do the different numbers mean (100R1, 100R2, etc.)?

SAE (Society of Automotive Engineers) standards define construction, performance, and dimensions.

• SAE 100R is the overall standard for hydraulic hose.

• The suffix (e.g., R1, R2, R12, R15) specifies the exact construction type, pressure rating, and materials.

  • Example: R1 (1 wire braid), R2 (2 wire braid), R12 (4-spiral wire), R13 (6-spiral wire high-pressure), R15 (thermoplastic).

9. What is the difference between a re-usable (field-attachable) fitting and a permanent crimp fitting?

• Permanent Crimp Fitting: Requires a crimper. Generally more reliable, consistent, and has a cleaner flow path. Used for most OEM and shop assemblies.

• Re-usable Fitting: Can be screwed onto a skived (peeled) hose end and secured with a separate collar. Useful for field repairs without a crimper, but may be bulkier and have a higher potential for improper assembly.

10. How often should hydraulic hoses be inspected or replaced?

• Perform visual inspections daily or weekly in demanding applications.

• Follow the manufacturer's recommended service life (often based on hours of operation or years).

• Replace immediately if you see: leaks, cuts, cracks, exposed reinforcement, abrasion through the cover, bubbly/blistered cover, kinks, or damaged fittings.

• Many industries follow a proactive replacement schedule (e.g., every 1-2 years) for critical hoses.

11. What does the information printed on the hose (hose layline) mean?

The layline contains vital information, typically including:

• Manufacturer / SAE Standard (e.g., SAE 100R2AT)

• Hose Size (e.g., -08 for 1/2")

• Maximum Working Pressure (e.g., 3000 PSI / 207 BAR)

• Manufacturer Date Code (e.g., Q1 2024)

• Fluid Type Compatibility (e.g., "OIL")

Always replace a hose with one that meets or exceeds the specifications on the original layline.

12. What safety precautions are essential?

• Always depressurize the system before loosening any connection.

• Wear safety glasses and gloves. High-pressure fluid injection is a severe injury risk.

• Never touch a pressurized hose to check for leaks-use paper or cardboard.

• Do not bend, kink, or hammer on high-pressure lines.

• Dispose of old hydraulic fluid and hoses according to local environmental regulations.

Quality First, Pric Best, Service Foremost!

We assure you of our best services at all times!