Oberdorfer 7129 Shaft Packing – PTFE Replacement Part
Packing remains the right answer on a number of pump duties because it is forgiving, adjustable and simple to renew without special tools. The Oberdorfer 7129 is the factory material for its position in the range.
The adjustment is the skill. A gland pulled down hard runs dry, scores the shaft and burns the packing; a gland left slack floods the bilge. A few drops per minute with the pump running is what to aim for.
Tighten the gland finger tight, then run the pump and adjust gradually while watching the drip and the temperature.
Key Features
- Genuine Oberdorfer 7129 shaft packing
- Manufactured in PTFE
- Adjustable dynamic seal for rotating shafts
- Serviceable in place without dismantling the pump
- Suited to marine and industrial circulation duties
Applications
- Packed gland pumps in marine service
- Raw water and seawater circulation
- Industrial transfer and process pumps
- Installations where in place adjustment is preferred
- Overhaul of Oberdorfer packed pump assemblies
Specifications
- Brand: Oberdorfer
- Manufacturer: Ingersoll Rand
- Manufacturer Part Number: 7129
- Part Type: Shaft Packing
- Material: PTFE
- Condition: New
Frequently Asked Questions
Q: How much should the gland drip?
A few drops a minute with the pump running. A completely dry gland is running too tight and will score the shaft.
Q: How many rings does the box take?
That depends on the pump and the depth of the box. Count the rings that come out before they go in the bin.
Q: Can new packing be added on top of old?
It is a false economy. The old material is already consolidated and will keep the new rings from sealing.
Q: Why does new packing keep needing adjustment?
It consolidates as it beds in. Expect two or three small adjustments in the first hours and then long stability.
Not sure this is the right part? Send us a Picture of the pump plate on your pump and the CLR Marine team will confirm the correct shaft packing before you order.
CLRMarine
