♠Description-HBY Piston Seal
HBY Piston Seal, also known as the buffer seal ring, consists of a soft beige polyurethane seal and a hard black PA anti-extrusion ring added to the heel of the seal. In addition, HBY Piston Seal is used in conjunction with piston rod seals to absorb shock and fluctuating pressures under high loads, to isolate high-temperature liquids, and to improve seal durability.
♥Property
| Material | PU |
| Temperature | -35℃~+100℃ |
| Speed | ≤1m/s |
| Medium | Water, Gas, Oil, Chemicals |
| Press | ≤40MPA |
| Color | Blue, Green |
| Hardness | 90A shore |
♣Advantage
●Prevent internal pressure generation in the seal●Pressure and oil resistance●Easy to install●Long service life●A wide range of temperature utilization
♦Catalog
| Item | Size |
| HBY | 40-55.6-6 |
| HBY | 45-60.5-6 |
| HBY | 50-65.5-6 |
| HBY | 55-70.5-6 |
| HBY | 60-75.5-6 |
| HBY | 63-78.5-6 |
| HBY | 65-80.5-6 |
| HBY | 70-85.5-6 |
| HBY | 75-90.5-6 |
| HBY | 80-95.5-6 |
| HBY | 85-100.5-6 |
| HBY | 90-105.5-6 |
| HBY | 95-110.5-6 |
| HBY | 100-115.5-6 |
| HBY | 105-120.5-6 |
| HBY | 110-125.5-6 |
| HBY | 115-130.5-6 |
| HBY | 120-135.5-6 |
| HBY | 125-140.5-6 |
| HBY | 130-145.5-6 |
| HBY | 135-150.5-6 |
| HBY | 140-155.5-6 |
| HBY | 145-160.5-6 |
| HBY | 150-165.5-6 |
| HBY | 155-170.5-6 |
The above specifications are not complete. Besides, we can customize the non-standard parts for you.
Please feel free to contact me if you are interested. 
