HBY
Description
HBY is a buffer seal developed to work in conjunction with high performance rod seals. It is interchangeable with common PTFE buffer seal housings.
The seal is designed to provide a valve action to prevent excessive pressure build up in the cavity between the buffer seal and the rod seal. A polyacetal anti-extrusion ring is fitted to provide maximum extrusion resistance against shock pressure loads.
* HBY allow oils to reach the primary seal at low pressure preventing the primary seal from running dry.
* It will self energize for maximum seal ability at high pressure or during shock load to protect the primary seal from it.
* If there is ever a pressure trap, it will release the trapped pressure at the lowest level when compared to other buffers in the market.
* Easy installation.
* Long life.
Application
None
Materials
Polyurethane (PU) + Nylon (NY)
TECHNICAL DATA
TECHNICAL DATA
| Temperature | -55°C/+100°C |
| Pressure | 500kg/cm² |
| Speed | 1 m/s |
| Medias | PU+NY |
MATERIALS
MATERIALS
PU
Polyurethane is a material that has the elastic properties of rubber. The proportion in its composition (diisocyanate, polyol, chain extender) is determined by its properties. This material is characterised by a strong mechanical resistance, good wear resistance, high elastic modulus, good flexibility and a very good ozone and oxidation resistance.
| Chemical resistance | Pure aliphatic hydrocarbons (propane, butane) Mineral oils and greases Silicone oils and greases Water up to +50°C |
|---|---|
| Compatibility issue | Ketones, esters, ethers, alcohols and glycols Hot water, steam, alkalis, amines and acids |
| Temperature range | -30°C/+90°C -30°C / +110°C with our PUHT (short term peak at 150°C) |
Nylon
DIMENSION
DIMENSION
| Internal Diameter (d) | Outside Diameter (D) | Height (H) |
|---|---|---|
| 40 | 55.5 | 6.3 |
| 45 | 60.5 | 6.3 |
| 50 | 65.5 | 6.3 |
| 55 | 70.5 | 6.3 |
| 60 | 75.5 | 6.3 |
| 65 | 80.5 | 6.3 |
| 70 | 85.5 | 6.3 |
| 75 | 90.5 | 6.3 |
| 80 | 95.5 | 6.3 |
| 85 | 100.5 | 6.3 |
| 90 | 105.5 | 6.3 |
| 95 | 110.5 | 6.3 |
| 100 | 115.5 | 6.3 |
| 105 | 120.5 | 6.3 |
| 110 | 125.5 | 6.3 |
| 115 | 130.5 | 6.3 |
| 120 | 135.5 | 6.3 |
| 125 | 140.5 | 6.3 |
| 130 | 145.5 | 6.3 |
| 132 | 147.5 | 6.3 |
| 135 | 150.5 | 6.3 |
| 140 | 155.5 | 6.3 |
| 150 | 165.5 | 6.3 |
| 160 | 175.5 | 6.3 |
| 170 | 185.5 | 6.3 |
| 180 | 195.5 | 6.3 |
| 190 | 205.5 | 6.3 |
| 200 | 221 | 8 |
| 210 | 231 | 8 |