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Product Description

The Vertex Regular bottle top dispenser fits a standard 30 mm reagent bottle thread and delivers set volumes with a smooth, bubble-free plunger action. It is available in eight adjustable ranges from 0.25 ml to 100 ml. Each unit is individually calibrated to ISO 8655 and supplied with a calibration certificate, five bottle adaptors and a universal calibration tool.

Key features

  • Simple construction with smooth, bubble-free plunger action
  • PTFE piston with silicone O-ring
  • Screw-type volume adjustment knob with large pointer
  • Glass barrel protected by a polypropylene sleeve
  • Nozzle cap prevents drips on the bench
  • Easy disassembly for cleaning and servicing
  • Standard 30 mm thread with 28, 32, 38, 42 and 45 mm bottle adaptors
  • Universal calibration tool for in-lab recalibration
  • Individually calibrated to ISO 8655 with a calibration certificate

Technical specifications

Volume ranges and specifications

Model Volume range Graduation (ml) Accuracy ± (%) Accuracy ± (ml) CV ± (%) CV ± (ml)
BTDR-1 0.25–2.5 ml 0.05 0.6 0.015 0.2 0.005
BTDR-2 0.5–5 ml 0.1 0.5 0.025 0.1 0.005
BTDR-3 1–10 ml 0.2 0.5 0.050 0.1 0.010
BTDR-4 2.5–25 ml 0.5 0.5 0.125 0.1 0.025
BTDR-5 2.5–30 ml 0.5 0.5 0.150 0.1 0.030
BTDR-6 5–50 ml 1.0 0.5 0.250 0.1 0.050
BTDR-7 5–60 ml 1.0 0.5 0.300 0.1 0.060
BTDR-8 10–100 ml 2.0 0.5 0.500 0.1 0.100

Materials

Component Material
Piston PTFE
Cylinder Glass
Volume knob Screw type
Valve assembly Glass ball and seat
Valve housing Polypropylene
Discharge assembly PTFE
Delivery tube FEP
Inlet tube FEP

What is supplied

  • Bottle top dispenser in the volume range selected
  • Five bottle adaptors (28, 32, 38, 42 and 45 mm)
  • Universal calibration tool
  • Individual calibration certificate

Frequently asked questions

What is the Vertex Regular bottle top dispenser used for?

Dispensing set volumes of liquid straight from a reagent bottle in chemical and laboratory work.

What volume ranges are available?

Eight ranges: 0.25–2.5, 0.5–5, 1–10, 2.5–25, 2.5–30, 5–50, 5–60 and 10–100 ml.

Which reagents can I dispense?

The manufacturer states it can be used with all laboratory reagents except hydrofluoric acid (HF).

Which bottle necks does it fit?

It has a standard 30 mm thread and comes with adaptors for 28, 32, 38, 42 and 45 mm bottles.

Is it autoclavable?

The Regular model data in our source does not state autoclaving. To confirm: please ask us before autoclaving.

Is it calibrated?

Yes. Each unit is individually calibrated to ISO 8655 with a calibration certificate, and a universal calibration tool is provided for recalibration in your lab.

Can I clean and service it?

Yes. It disassembles easily for cleaning and servicing.

What is the warranty?

Labmart supplies this product with a 1-year standard warranty.

What does the nozzle cap do?

It prevents drips on the work surface.

Do you provide a GST invoice and bulk or institutional quotations?

Yes. Labmart (Chemlab Equipment) issues a GST invoice with every order. For colleges, hospitals, pharma companies and government labs we also give bulk and institutional quotations. Send us the model, volume range, quantity and delivery location and we will quote.

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