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Produktkategorie: Dispensing Pumps
Dispensing Pumps
Filling vials, aliquoting reagents or topping bottles by hand wastes time and drifts off target, which is why dispensing pumps exist. They deliver a preset volume on demand, holding accuracy across hundreds of repeat shots so each container receives the same fill. Buyers look at the dispensed volume range, the accuracy claimed and whether the wetted path suits their fluid and hygiene needs. Listings here describe the dispensing mechanism and volume settings so you can judge fit for bottling or aliquoting. Reach the seller to confirm the pump handles your reagent and container.
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Dispensing Pump Types
Among the liquid handling, pumps and fluid control listings, dispensing pumps vary by the mechanism that meters each shot and by how they are triggered. The variants suit bottle top work, benchtop aliquoting and inline filling.
Bottle top dispensers
Piston units that screw onto a reagent bottle and deliver a set volume per stroke. They suit repeated aliquoting of solvents and buffers straight from stock.
Cartridge and syringe dispensers
Positive displacement heads that push a fixed volume from a syringe or cartridge. They give tight accuracy for small repeat doses of valuable reagents.
Peristaltic bottle fillers
Tube based dispensers that fill containers without the fluid touching the pump. They keep filling sterile and switch product with a simple tube change.
Programmable multi dispense units
Electronic pumps that repeat a set dose or step through a fill sequence on a footswitch. They speed up batch filling where volumes and counts vary.
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Zwischen Käufer und Verkäufer steht kein Makler. Fragen Sie nach der Wartungshistorie, vereinbaren Sie Besichtigungen und verhandeln Sie direkt mit der Person, die die Maschine wirklich kennt.
Applications and Uses
Dispensing pumps handle repeatable filling and aliquoting across the lab and small production runs. These are the settings where they fit.
Reagent aliquoting
Splitting bulk buffers and media into working volumes for daily use. A set shot keeps every aliquot identical, which protects downstream results.
Vial and bottle filling
Filling containers to a target volume in repeat cycles for small batch production. Consistent fills reduce give away and rejects.
Kit and sample preparation
Delivering fixed volumes into tubes and plates when assembling kits. The repeatable dose speeds up assembly and cuts manual error.
Solvent and buffer dispensing
Metering solvents from stock bottles without pouring or splashing. Bottle top units keep the operation clean and accurate at the bench.
Benefits from Machinery Masters
The marketplace lists dispensing pumps for bench aliquoting and small batch filling with clear specifications.
01
Filling and aliquoting hardware in one place
Bottle top, syringe and peristaltic dispensing pumps sit together for easy comparison, so you specify a filling setup without hunting across suppliers.
02
Serviced dispensing pumps below new cost
A used dispensing pump with fresh seals fills accurately for far less than a new one, and the saving funds spare tubing and syringes.
03
Fluid and container fit checked with the seller
You confirm the wetted path and container thread with the seller, which ensures the dispensing pump suits your reagent and bottle before purchase.
Frequently Asked Questions zu Dispensing Pumps
A well maintained dispenser holds tight accuracy shot to shot, which is the whole point of using one over pouring. The specification states the accuracy and the precision at a given volume, and both matter for repeatable filling. Worn seals or a sticky piston degrade this over time. Ask the seller for a recent accuracy check and verify it on installation with a balance.
Viscous fluids need a mechanism that can draw them cleanly, so a positive displacement piston or peristaltic head usually suits better than a fast gravity fill. Foaming fluids benefit from a slow dispense speed and a submerged fill to reduce bubbles. Describe your fluid's behaviour to the seller so they can confirm the listed pump copes. Matching the mechanism to the fluid keeps fills accurate.
The piston, valves and tubing must resist your solvent or reagent without swelling or leaching. Solvent aliquoting often calls for a PTFE or glass wetted path, while aqueous buffers are less demanding. Ask the seller to confirm the wetted materials on the specific dispenser. Matching them protects both the pump and the purity of your reagent.
Peristaltic dispensers keep the fluid inside disposable tubing, so only the tube contacts the product, which suits sterile and aseptic filling. You can autoclave or replace the tube between products to avoid cross contamination. This makes them a strong choice for media and buffer filling under clean conditions. Confirm the tube size and material with the seller to match your validation.
Contact the seller and ask for a recent accuracy check, photos of the wetted parts and a description of the service history. Because you deal directly with the seller, you can request a short video of the pump dispensing. Each seller is verified, which underpins the dispensing pump transaction. Agree any inspection you want before you complete the purchase.
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