Quick connect tube fitting allow secure connection by simply pushing the tube all the way in.
To remove the tube, first push the release sleeve inward evenly to open the spring collet, and then the tube can be pulled out easily.
Quick connect tube fittings are used in pneumatic tybe system
Pneumatic tube fittings with various types can meet all neeeds in pneumatic tube system
Even after installed ,the direction of tube can be freely changed
Nickel-plated brass body is corrosion-proof and anti-pollution
All R and NPT threads glue has a sealing effect.
All straight threads are standard O rings.
Thread Specification Comparison Table for pneumatic fittings
| 55°Taper tube thread | |||||
| Code | 01 | 02 | 03 | 04 | 06 |
| Thread | R1/8 | R1/4 | R3/8 | 1/2 | R3/4 |
| 55°Straight tube thread | |||||
| Code | G01 | G02 | G03 | G04 | G06 |
| Thread | G1/8 | G1/4 | G3/8 | G1/2 | G3/4 |
| Metric thread | |||||
| Code | M3 | M5 | M6 | ||
| Thread | M3X0.5 | M5X0.8 | M6X1.0 | ||
| 60°Taper tube thread | |||||
| Code | N01 | N02 | N03 | N04 | N06 |
| Thread | NPT1/8 | NPT1/4 | NPT3/8 | NPT1/2 | NPT3/4 |
| Unified Fine Pitch Thread | |||||
| Code | U10 | ||||
| Thread | 10-32UNF | ||||
Note: OLK pneumatic fitting are shipped by default with taper threads. If other thread types (e.g., parallel, metric, NPT, etc.) are required, please notify our OLK sales team when placing the order.
Common threads and thread standards for Quick connect tube fitting
| Thread Type | Thread Code | Thread Form | Thread Angle (α) | Matching Type | Standards | Standard Code | Standard Organization |
| BSPP (Cylindrical, Non-Sealing) | G | Internal/External | 55° | Parallel/Parallel | ISO 228-1 2003 | ISO | ISO - International Organization for Standardization |
| BSPP | Internal/External | 55° | Parallel/Parallel | GB/T 7307 2001 | GB | SAC - Standardization Administration of China | |
| PF | Internal/External | 55° | Parallel/Parallel | BS 228-1 2003 | BS | BSI - British Standards Institution | |
| JIS B 0202 | JIS | JISC - Japanese Industrial Standards Committee | |||||
| KS B 0221 | KS | KATS - Korean Agency for Technology and Standards | |||||
| BSPT (Tapered, Sealing) | Rp | Internal | 55° | Tapered/Parallel | ISO 7-1 | ISO | ISO - International Organization for Standardization |
| Rc | Internal | Tapered/Parallel | GB/T 7306-1987 | GB | SAC - Standardization Administration of China | ||
| R | External | Tapered/Parallel | BS 21 1985 | BS | BSI - British Standards Institution | ||
| BSPT | Internal/External | 55° | Tapered/Tapered | JIS B 0203 | JIS | JISC - Japanese Industrial Standards Committee | |
| PT | Internal/External | Tapered/Tapered | KS B 0222 | KS | KATS - Korean Agency for Technology and Standards | ||
| NPSC (American Internal) | NPSC | Internal | 60° | Tapered/Parallel | ANSI B1.20.1-1983 | ANSI | ANSI - American National Standards Institute |
| GB/T 12716-2002M | GB | SAC - Standardization Administration of China | |||||
| NPT (American Tapered) | NPT | Internal/External | 60° | Tapered/Tapered | ANSI B1.20.1-1983 | ANSI | ANSI - American National Standards Institute |
| GB/T 12716-2002M | GB | SAC - Standardization Administration of China | |||||
| Metric Thread | M | Internal/External | 60° | Parallel/Parallel | ISO 261-1998 | ISO | ISO - International Organization for Standardization |
| GB/T 1193-2003 | GB | SAC - Standardization Administration of China |
1. To confirm that the final cross-section of the hose is vertical ,there are no scratches on the outer circumference of the hose.The hose is not elliptical.
2. Be sure to confirm that the hose is inserted into the hose end .Otherwise,there is air leakage.
3. Be sure to confirm that the hose won’t be pulled out after the hose inserted.
1. Before disconnecting tube,be sure to confirm that the pressure inside the tube is at ‘0’.
2. Press the release ring evenly to the bottom and pull out the tube.If the release ring is not pressed in place,the tube are possibly not be pulled out or can be strained.The tube debris may remain inside the tube fitting.
