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Pulp Filling Valve Blockage: Product and Flow Investigation
Investigate pulp-filling blockages by particle distribution, formulation, filling position and idle period; preserve samples for equipment review.
What to establish first
Investigate particle distribution, product consistency and the confirmed passage geometry together. A stoppage attributed to pulp may also reflect upstream segregation, a restricted fitting or a mismatch between the test product and production batches.
Three checks before a change
- Describe particles by size distribution, concentration and behaviour, including settling or clumping. Compare the trial batch with the batch that blocked.
- Map restrictions through product supply, valves and filling paths. Ask the equipment owner to confirm the intended passage and particle compatibility.
- Check whether the pattern occurs after waiting, at startup or continuously. Use an agreed product trial to verify cleaning, restart and accepted filling performance.
Interpret the observed pattern
| Observed pattern | Next review |
|---|---|
| Blockage follows one product lot | Compare the full particle distribution, agglomeration and approved formulation conditions. An average size does not describe every particle passing the valve. |
| Blockage follows idle periods | Link the product condition and stop duration with the first affected position. Ask whether the approved handling and restart procedure covers the observed product behaviour. |
| Blockage recurs at one position | Retain position-linked samples and request an isolated inspection against the approved passage and maintenance basis. Verify product integrity as well as restored flow. |
Evidence to record
Use these fields as a worksheet. Keep individual results and comparison samples; an overall average alone may hide the affected condition.
| Record item | Required evidence |
|---|---|
| Particle distribution and concentration | Identify the exact format, lot and document revision; attach a representative sample or record. |
| Batch preparation and waiting time | State the location, method, instrument and operating condition so a comparison can be repeated. |
| Restriction location and position | Link the observation to an individual sample and a common timestamp; retain both normal and affected cases. |
| Approved trial and cleaning results | Record the approved assessment, action, verification result and responsible person; keep unresolved items visible. |
Controlled trial and acceptance
Agree the observation, affected boundary and acceptance method before starting a trial. Identify the product-package combination, approved settings and responsible equipment or quality owner. A test must have a clear question and a controlled disposition for trial material.
Compare the existing and proposed condition with identified samples using the same measurement basis. Change only what the responsible owner has authorised. Include the relevant steady-running, stop or restart case; one passing sample does not establish repeatable operation.
Keep results, samples and configuration revisions together. Record what passed, what remains open and the exact approved scope. If a correction moves the defect to another process step or compromises another acceptance requirement, retain that result and continue the assessment.
Common question
Is a larger nozzle enough to qualify a pulpy beverage?
The entire product path and operating sequence matter. A larger outlet does not resolve every upstream restriction, segregation effect or cleaning requirement.
Technical reading
The linked manufacturer material provides engineering context. This worksheet is an independently written diagnostic framework; the installed equipment’s approved instructions and the site’s product acceptance determine the actual procedure and limits.
China Beverage Machinery is operated by Allot Tech (Suzhou) Co., Ltd. for machinery sourcing, configuration planning and export project coordination.