What Are Lubrication Push-In Fittings?
Lubrication push-in fittings, also known as push-to-connect or quick-connect fittings, are innovative components designed to create fast, secure, and leak-free connections in fluid transfer systems. Widely used in hydraulic, pneumatic, and lubrication systems, these fittings simplify the installation of tubing for oils, greases, and other lubricants. Their tool-free design and reliability make them a go-to solution for industries prioritizing efficiency, safety, and reduced downtime.
In a centralized lubrication system, push-in quick connectors play a crucial role. These connectors are designed to provide a quick and easy way to connect and disconnect lubrication lines.
Push-in fittings is designed with one inner o-ring seal, claw for plastic pipe or metal pipe with claw groove, the oil lubrication systems pressure is up to 200 bar, working temperature is form -20°C to 80 °C. They are made of Nickel-plated brass, that are compatible with the lubricant being used to ensure long-term reliability. When a lubrication line needs to be connected, the connector is pushed onto the end of the line. The internal mechanism of the connector then grips the line firmly, creating a seal that prevents leakage.
Push-in fittings operate on a straightforward yet robust mechanism:
Push-to-Connect Design: Simply insert the tubing into the fitting until it “clicks” into place.
Grip-and-Seal Technology: An internal collet and O-ring ensure a tight, vibration-resistant seal.
Quick Release: Press the release collar to disconnect the tubing without tools.
This design eliminates the need for threading, soldering, or clamps, making them ideal for high-pressure and high-vibration environments.
Rapid Installation: Reduce assembly time by up to 50% compared to traditional fittings.
Leak-Free Performance: Integrated O-rings and collets prevent leaks, even under extreme pressure (up to 250 PSI).
Durability: Made from corrosion-resistant materials like brass, stainless steel, or engineered plastics.
Versatility: Compatible with nylon, polyurethane, and polyethylene tubing.
Cost Savings: Minimize maintenance labor and downtime while extending machinery lifespan.
Push-in fittings are critical in sectors where precision lubrication and efficiency matter:
Automotive: Fuel lines, brake systems, and assembly line robotics.
Aerospace: Hydraulic controls and landing gear systems.
Manufacturing: CNC machines, conveyor systems, and automated lubrication networks.
Heavy Machinery: Construction equipment, agricultural machinery, and mining rigs.
Food & Pharma: Hygienic, easy-to-clean designs for contamination-sensitive environments.
| Feature | Push-In Fittings | Traditional Fittings |
|---|---|---|
| Installation Time | Seconds (tool-free) | Minutes (requires tools) |
| Leak Risk | Minimal (built-in sealing) | Higher (dependent on skill) |
| Vibration Resistance | Excellent (collet grip) | Moderate (may loosen over time) |
| Maintenance | Easy (quick-release mechanism) | Complex (disassembly needed) |
Material Compatibility: Match fitting material (brass, stainless steel, plastic) to your fluid type and environment.
Tubing Size: Ensure the fitting supports your tubing’s inner/outer diameter (e.g., ¼” or 6mm).
Pressure Rating: Verify the fitting’s PSI limit aligns with system requirements.
Temperature Range: Choose fittings rated for your operating temperatures (-40°F to 300°F).
Industry Standards: Look for certifications like ISO 9001 or SAE for quality assurance.
Q: Can push-in fittings handle high-pressure systems?
A: Yes! High-quality fittings withstand up to 250 PSI, but always check manufacturer specifications.
Q: Are they reusable?
A: Absolutely. Simply release the collar and reinsert the tubing for repeated use.
Q: Do they work with all tubing types?
A: Most are compatible with nylon, polyurethane, and polyethylene. Confirm compatibility charts before purchase.
Q: How do I troubleshoot leaks?
A: Check for damaged O-rings, improper tubing insertion, or incompatible tubing size.
Specification of Lubrication sytem push-in Fittings
Material is Brass with Nickel Plated
Reinforced Collar one-sealing desing
Max Working Pressure for Oil or Grease at 200 Bar
O-ring is NBR, working temperature: -20°C to 80 °C
For Ployamide PA12 tubing 4x0.8 and 6x1.5
For Hose stud with claw groove end 6mm
Connection thread is available in M6x1 taper, M8x1 taper, M10x1 taper and R1/8.
Steel pipe or fittings must be prepared with a claw groove to connect.
Straight Connector Taper Thread to Push-in fitting
Part No. | Taper Thread | Tube O.D | SW | Bag | Item No. | Weight(kg/100) |
GP04M6 | M 6 x 1 tap | 4 | 10 | 50 | AHPC04-M6x1 | 1.0 |
GP04M8 | M 8 x 1 tap | 4 | 10 | 50 | AHPC04-M8x1 | 1.0 |
GP04M10 | M 10 x 1 tap | 4 | 10 | 50 | AHPC04-M10x1 | 1.0 |
GP04R2 | R 1/8 BSP tap | 4 | 10 | 50 | AHPC04-1/8 | 1.0 |
GP06M6 | M 6 x 1 tap | 6 | 12 | 50 | AHPC06-M6x1 | 1.1 |
GP06M8 | M 8 x 1 tap | 6 | 12 | 50 | AHPC06-M8x1 | 1.1 |
GP06M10 | M 10 x 1 tap | 6 | 12 | 50 | AHPC06-M10x1 | 1.1 |
GP06R2 | R 1/8 BSP tap | 6 | 12 | 50 | AHPC06-1/8 | 1.1 |
Elbow Connector Taper Thread to Push-in fitting
Part No. | Taper Thread | Tube O.D | SW | Bag | Item No. | Weight(kg/100) |
WP04M6 | M 6 x 1 tap | 4 | 10 | 50 | AHPFL04-M6X1 | 1.4 |
WP04M8 | M 8 x 1 tap | 4 | 10 | 50 | AHPFL04-M8X1 | 1.4 |
WP04M10 | M 10 x 1 tap | 4 | 10 | 50 | AHPFL04-M10X1 | 1.4 |
WP04R2 | R 1/8 BSP tap | 4 | 10 | 50 | AHPFL04-1/8 | 1.4 |
WP06M6 | M 6 x 1 tap | 6 | 10 | 50 | AHPFL06-M6X1 | 1.6 |
WP06M8 | M 8 x 1 tap | 6 | 10 | 50 | AHPFL06-M8X1 | 1.6 |
WP06M10 | M 10 x 1 tap | 6 | 10 | 50 | AHPFL06-M10X1 | 1.6 |
WP06R2 | R 1/8 BSP tap | 6 | 10 | 50 | AHPFL06-1/8 | 1.6 |
Elbow Swivel Connector Taper Thread to Push-in fitting
Part No. | Taper Thread | Tube O.D | SW | Bag | Item No. | Weight(kg/100) |
EWP04M6 | M 6 x 1 tap | 4 | 10 | 50 | AHPL04-M6x1 | 1.7 |
EWP04M8 | M 8 x 1 tap | 4 | 10 | 50 | AHPL04-M8x1 | 1.7 |
EWP04M10 | M 10 x 1 tap | 4 | 12 | 50 | AHPL04-M10x1 | 1.8 |
EWP04R2 | R 1/8 BSP tap | 4 | 12 | 50 | AHPL04-1/8 | 1.8 |
EWP06M6 | M 6 x 1 tap | 6 | 10 | 50 | AHPL06-M6x1 | 1.9 |
EWP06M8 | M 8 x 1 tap | 6 | 10 | 50 | AHPL06-M8x1 | 2.0 |
EWP06M10 | M 10 x 1 tap | 6 | 12 | 50 | AHPL06-M10x1 | 2.1 |
EWP06R2 | R 1/8 BSP tap | 6 | 12 | 50 | AHPL06-1/8 | 2.1 |
Straight Connector Union Push-in fitting
Part No. | D | L | Bag | Item No. | Weight kg/100 |
GP04 | 4 | 30 | 50 | AHPU06 | 1.0 |
GP06 | 6 | 33 | 50 | AHPU06 | 1.3 |
Elbow Connector Union Push-in fitting
Part No. | D | L | Bag | Item No. |
EP04 | 4 | 50 | AHPE04 | |
EP06 | 6 | 50 | AHPE06 |
Tee Connector Union Push-in fitting
Part No. | D | Bag | Item No. |
TP04 | 4 | 50 | AHPE04 |
TP06 | 6 | 50 | AHPE06 |
What Are Lubrication Push-In Fittings?
Lubrication push-in fittings, also known as push-to-connect or quick-connect fittings, are innovative components designed to create fast, secure, and leak-free connections in fluid transfer systems. Widely used in hydraulic, pneumatic, and lubrication systems, these fittings simplify the installation of tubing for oils, greases, and other lubricants. Their tool-free design and reliability make them a go-to solution for industries prioritizing efficiency, safety, and reduced downtime.
In a centralized lubrication system, push-in quick connectors play a crucial role. These connectors are designed to provide a quick and easy way to connect and disconnect lubrication lines.
Push-in fittings is designed with one inner o-ring seal, claw for plastic pipe or metal pipe with claw groove, the oil lubrication systems pressure is up to 200 bar, working temperature is form -20°C to 80 °C. They are made of Nickel-plated brass, that are compatible with the lubricant being used to ensure long-term reliability. When a lubrication line needs to be connected, the connector is pushed onto the end of the line. The internal mechanism of the connector then grips the line firmly, creating a seal that prevents leakage.
Push-in fittings operate on a straightforward yet robust mechanism:
Push-to-Connect Design: Simply insert the tubing into the fitting until it “clicks” into place.
Grip-and-Seal Technology: An internal collet and O-ring ensure a tight, vibration-resistant seal.
Quick Release: Press the release collar to disconnect the tubing without tools.
This design eliminates the need for threading, soldering, or clamps, making them ideal for high-pressure and high-vibration environments.
Rapid Installation: Reduce assembly time by up to 50% compared to traditional fittings.
Leak-Free Performance: Integrated O-rings and collets prevent leaks, even under extreme pressure (up to 250 PSI).
Durability: Made from corrosion-resistant materials like brass, stainless steel, or engineered plastics.
Versatility: Compatible with nylon, polyurethane, and polyethylene tubing.
Cost Savings: Minimize maintenance labor and downtime while extending machinery lifespan.
Push-in fittings are critical in sectors where precision lubrication and efficiency matter:
Automotive: Fuel lines, brake systems, and assembly line robotics.
Aerospace: Hydraulic controls and landing gear systems.
Manufacturing: CNC machines, conveyor systems, and automated lubrication networks.
Heavy Machinery: Construction equipment, agricultural machinery, and mining rigs.
Food & Pharma: Hygienic, easy-to-clean designs for contamination-sensitive environments.
| Feature | Push-In Fittings | Traditional Fittings |
|---|---|---|
| Installation Time | Seconds (tool-free) | Minutes (requires tools) |
| Leak Risk | Minimal (built-in sealing) | Higher (dependent on skill) |
| Vibration Resistance | Excellent (collet grip) | Moderate (may loosen over time) |
| Maintenance | Easy (quick-release mechanism) | Complex (disassembly needed) |
Material Compatibility: Match fitting material (brass, stainless steel, plastic) to your fluid type and environment.
Tubing Size: Ensure the fitting supports your tubing’s inner/outer diameter (e.g., ¼” or 6mm).
Pressure Rating: Verify the fitting’s PSI limit aligns with system requirements.
Temperature Range: Choose fittings rated for your operating temperatures (-40°F to 300°F).
Industry Standards: Look for certifications like ISO 9001 or SAE for quality assurance.
Q: Can push-in fittings handle high-pressure systems?
A: Yes! High-quality fittings withstand up to 250 PSI, but always check manufacturer specifications.
Q: Are they reusable?
A: Absolutely. Simply release the collar and reinsert the tubing for repeated use.
Q: Do they work with all tubing types?
A: Most are compatible with nylon, polyurethane, and polyethylene. Confirm compatibility charts before purchase.
Q: How do I troubleshoot leaks?
A: Check for damaged O-rings, improper tubing insertion, or incompatible tubing size.
Specification of Lubrication sytem push-in Fittings
Material is Brass with Nickel Plated
Reinforced Collar one-sealing desing
Max Working Pressure for Oil or Grease at 200 Bar
O-ring is NBR, working temperature: -20°C to 80 °C
For Ployamide PA12 tubing 4x0.8 and 6x1.5
For Hose stud with claw groove end 6mm
Connection thread is available in M6x1 taper, M8x1 taper, M10x1 taper and R1/8.
Steel pipe or fittings must be prepared with a claw groove to connect.
Straight Connector Taper Thread to Push-in fitting
Part No. | Taper Thread | Tube O.D | SW | Bag | Item No. | Weight(kg/100) |
GP04M6 | M 6 x 1 tap | 4 | 10 | 50 | AHPC04-M6x1 | 1.0 |
GP04M8 | M 8 x 1 tap | 4 | 10 | 50 | AHPC04-M8x1 | 1.0 |
GP04M10 | M 10 x 1 tap | 4 | 10 | 50 | AHPC04-M10x1 | 1.0 |
GP04R2 | R 1/8 BSP tap | 4 | 10 | 50 | AHPC04-1/8 | 1.0 |
GP06M6 | M 6 x 1 tap | 6 | 12 | 50 | AHPC06-M6x1 | 1.1 |
GP06M8 | M 8 x 1 tap | 6 | 12 | 50 | AHPC06-M8x1 | 1.1 |
GP06M10 | M 10 x 1 tap | 6 | 12 | 50 | AHPC06-M10x1 | 1.1 |
GP06R2 | R 1/8 BSP tap | 6 | 12 | 50 | AHPC06-1/8 | 1.1 |
Elbow Connector Taper Thread to Push-in fitting
Part No. | Taper Thread | Tube O.D | SW | Bag | Item No. | Weight(kg/100) |
WP04M6 | M 6 x 1 tap | 4 | 10 | 50 | AHPFL04-M6X1 | 1.4 |
WP04M8 | M 8 x 1 tap | 4 | 10 | 50 | AHPFL04-M8X1 | 1.4 |
WP04M10 | M 10 x 1 tap | 4 | 10 | 50 | AHPFL04-M10X1 | 1.4 |
WP04R2 | R 1/8 BSP tap | 4 | 10 | 50 | AHPFL04-1/8 | 1.4 |
WP06M6 | M 6 x 1 tap | 6 | 10 | 50 | AHPFL06-M6X1 | 1.6 |
WP06M8 | M 8 x 1 tap | 6 | 10 | 50 | AHPFL06-M8X1 | 1.6 |
WP06M10 | M 10 x 1 tap | 6 | 10 | 50 | AHPFL06-M10X1 | 1.6 |
WP06R2 | R 1/8 BSP tap | 6 | 10 | 50 | AHPFL06-1/8 | 1.6 |
Elbow Swivel Connector Taper Thread to Push-in fitting
Part No. | Taper Thread | Tube O.D | SW | Bag | Item No. | Weight(kg/100) |
EWP04M6 | M 6 x 1 tap | 4 | 10 | 50 | AHPL04-M6x1 | 1.7 |
EWP04M8 | M 8 x 1 tap | 4 | 10 | 50 | AHPL04-M8x1 | 1.7 |
EWP04M10 | M 10 x 1 tap | 4 | 12 | 50 | AHPL04-M10x1 | 1.8 |
EWP04R2 | R 1/8 BSP tap | 4 | 12 | 50 | AHPL04-1/8 | 1.8 |
EWP06M6 | M 6 x 1 tap | 6 | 10 | 50 | AHPL06-M6x1 | 1.9 |
EWP06M8 | M 8 x 1 tap | 6 | 10 | 50 | AHPL06-M8x1 | 2.0 |
EWP06M10 | M 10 x 1 tap | 6 | 12 | 50 | AHPL06-M10x1 | 2.1 |
EWP06R2 | R 1/8 BSP tap | 6 | 12 | 50 | AHPL06-1/8 | 2.1 |
Straight Connector Union Push-in fitting
Part No. | D | L | Bag | Item No. | Weight kg/100 |
GP04 | 4 | 30 | 50 | AHPU06 | 1.0 |
GP06 | 6 | 33 | 50 | AHPU06 | 1.3 |
Elbow Connector Union Push-in fitting
Part No. | D | L | Bag | Item No. |
EP04 | 4 | 50 | AHPE04 | |
EP06 | 6 | 50 | AHPE06 |
Tee Connector Union Push-in fitting
Part No. | D | Bag | Item No. |
TP04 | 4 | 50 | AHPE04 |
TP06 | 6 | 50 | AHPE06 |
