NG # 02650-HW-KELLER-026
The Keller 900001.0009 Bellows Assembly is an aneroid bellows termination device designed for Keller vented-cable submersible pressure transducers. It attaches to the reference vent tube within the cable to create a sealed, maintenance-free reference system.
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Get A QuoteIt serves as a long-term alternative to standard desiccant drying tubes, protecting sensitive internal electronics and barometric reference ports from moisture ingress and condensation in high-humidity or submersed environments.
| Parameter | Specification Details |
| Part Number | 900001.0009 |
| Type | Aneroid Bellows / Closed Reference System |
| Dimensions | $2.5\text{ in} \times 1.47\text{ in}$ ($63.5\text{ mm} \times 37.3\text{ mm}$) |
| Compatibility | All Keller vented-cable submersible level transmitters (e.g., Levelgage, Acculevel, Microlevel) |
| Maintenance | Zero maintenance required (no desiccant media or recharge needed) |
| Thermal Zero Shift Error | $\sim 0.0004\text{ psi/°C}$ (due to trapped air volume expansion inside closed system) |
| Mounting / Enclosure Integration | Directly attaches to vent cable end or mounts inside Keller NEMA 4X termination enclosures |
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