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The Haskel 28081-3 seat is a spare part for the Haskel 4B series air driven liquid pumps. These pumps are designed to be driven by compressed air, dry nitrogen, clean natural gas or CO2 gas, and can operate in any attitude. The seat is made of PTFE, a material that has high resistance to heat, chemicals and wear. The seat is inserted into the pump head to seal the piston and prevent leakage of the liquid. The Haskel 28081-3 seat is compatible with various models of the 4B series pumps, such as 4B-1, 4B-2, 4B-3 and 4B-5. The seat can be easily replaced by following the operating and maintenance instructions provided by Haskel .
- Made of PTFE for high chemical, heat, and wear resistance
- OEM-compatible replacement for Haskel 4B-series pumps
- Ensures leak-free sealing in pressurized fluid cycles
- Simple drop-in installation for fast maintenance
- Compact spare with minimal impact on pump operation
| Part Number | 28081‑3 |
| Material | PTFE (polytetrafluoroethylene) |
| Compatible Models | Haskel 4B‑1, 4B‑2, 4B‑3, 4B‑5 liquid pumps |
| Pressure Performance | Matches OEM liquid head ratings (up to several thousand psi) |
| Weight | ~0.04 lb / 0.02 kg |
| Condition | New OEM or equivalent PTFE quality |
| Packaging | Individually bagged seat, ready to install |