How should you choose a liquid soap or lotion pump?
A packaging pump is not an electronic soap dispenser
A liquid soap or lotion pump fits onto a bottle and dispenses product when the user presses its head. This guide concerns manual packaging pumps. Sensor-operated, battery-powered and electric soap dispensers are separate devices; their features should not be attributed to an ordinary bottle pump.
A pump does more than close the container. It must deliver the product appropriately, work through repeated use and provide the required sealing performance together with the bottle. Appearance and nominal diameter alone do not establish these properties.
Check the bottle neck and dip tube
Compare the bottle neck drawing or verified neck finish specification with the pump’s current technical information. Two components with the same diameter can have different threads. Bottle height alone is also insufficient: check the dip tube length, end cut and position relative to the bottle base on a sample.
A tube that is too long or too short can affect product pickup. Do not automatically reuse the previous tube dimensions when changing bottles. Assess closing and any locking action according to the instructions for the particular model.
Soap and lotion may behave differently
Product consistency, formulation and use temperature are part of pump selection. A sample test using only water may not represent the actual filled product. Use the intended formulation to assess initial priming, repeated strokes, dispensing behaviour and operation after a period of storage.
Request verified model-specific information about output per stroke. Do not assume a universal dispensing volume, general disinfectant suitability or compatibility with every cosmetic formulation. For sensitive applications, discuss product-contact components and test conditions with the supplier.
Reading the Peksan product record
The current catalogue identifies 024.036LTP11E as a 24 mm lotion pump and 028.040LTP11E as a 28 mm lotion pump. Both records specify an EPE liner. This does not mean that the pumps fit the same bottle or perform identically with every formulation.
Before ordering, provide the product code, bottle drawing, filled product, intended conditions of use and required quantity. Agree acceptance criteria for sample filling, closing, transport and use trials. Confirm colour, tube length, locking options, sample arrangements and lead time in the current quotation.
Compare more than the unit price. Bottle compatibility, the user’s dispensing experience and the results obtained with the actual product belong in the same decision. When the model changes, previous test results should not automatically be treated as validation of the replacement pump.
Sources and related guides
Bottle neck and cap compatibility
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