Representative Image

Lenz-Laborglas Burette Needle-Valve Stopcocks, Lateral, Bore mm NW 2.5

Material stopcock

Stopcock

Specifications

Compare models
Material
Boro 3.3
Material stopcock
PTFE spindle
Stopcock
Lateral
UNSPSC
41121500

$93.91

Inc. GST

Available soon

Product description

The Lenz-Laborglas Burette Needle-Valve Stopcocks are precision instruments designed for accurate flow control in laboratory applications. Featuring a lateral bore of 2.5 mm (NW), these stopcocks ensure precise liquid handling and are ideal for titration, dispensing, and other volumetric procedures. Made from high-quality materials, they provide durability and reliability, ensuring efficient operation in a wide range of laboratory settings.

Key Features:

  • Brand: Lenz-Laborglas
  • Design: Needle-valve stopcock with lateral bore for precise flow control
  • Bore Size: 2.5 mm (NW) for accurate liquid dispensing
  • Material: Durable construction for long-lasting use in laboratory environments
  • Application: Ideal for titration, dispensing, and other laboratory volumetric procedures

This burette needle-valve stopcock is an essential tool for laboratories that require precise liquid flow control and accurate volumetric measurements.

Downloads

Compare similar models

Burette Needle-valve Stopcocks, Lateral,    Bore mm NW 2,5

Manufacturer P/N

02702902

Part Number

6.304 835

Manufacturer

Lenz-Laborglas

Material stopcock

PTFE spindle

Burette Stopcocks, Lateral, Boro 3.3, Plug Solid, NS 12,5 Bore mm 1,5

Manufacturer P/N

02702001

Part Number

6.304 834

Manufacturer

Lenz-Laborglas

Material stopcock

Glass key

Side burette stopcock NS 12.5 borosilicate glass 3.3, PTFE plug, bore 1, 5 mm

Manufacturer P/N

02702501

Part Number

6.223 287

Manufacturer

Lenz-Laborglas

Material stopcock

PTFE key

Straight burette valve cock, boro 3.3 valve opening 0-2,5mm, valve arbor PTFE

Manufacturer P/N

02700902

Part Number

6.256 576

Manufacturer

Lenz-Laborglas

Material stopcock

PTFE spindle

Straight burette stopcock, Boro 3.3, cock PTFE, NS 12,5, hole 1,5mm

Manufacturer P/N

02700501

Part Number

6.252 255

Manufacturer

Lenz-Laborglas

Material stopcock

PTFE key

Burette Stopcocks, Straight, Boro 3.3, Plug Solid, NS 12,5 Bore mm 1,5

Manufacturer P/N

02700001

Part Number

6.228 290

Manufacturer

Lenz-Laborglas

Material stopcock

Glass key

Frequently asked questions

It are precision instruments designed for accurate flow control in laboratory applications. Featuring a lateral bore of 2.5 mm (NW), these stopcocks ensure precise liquid handling and are ideal for titration, dispensing, and other volumetric procedures. Made from high-quality materials, they provide durability and reliability, ensuring efficient operation in a wide range of laboratory settings.

Insights

Explore
Burette vs Pipette: Key Differences and Which to Use

1 min read

Burette vs Pipette: Key Differences and Which to Use

This guide explains the practical difference between a burette and a pipette, two instruments that are often confused because both dispense measured volumes of liquid, but that are built for genuinely different jobs. It breaks down how a burette's stopcock and full-length graduated scale let an operator dispense a variable, watched volume and stop the instant a reaction reaches its endpoint, versus how a pipette (volumetric, graduated or micropipette) is built to transfer one known or pre-set volume in a single action. Rather than presenting the two as competing options, the piece frames them as complementary tools tied to different steps in a procedure: burettes for titration and any reaction where the target volume isn't known in advance, pipettes for sample preparation, dilutions and any step where the volume is already fixed.

Read full story
Top 5 Brands for Graduated Cylinders in 2026

1 min read

Top 5 Brands for Graduated Cylinders in 2026

This guide compares the five graduated cylinder brands most commonly used across Australian laboratories: Hirschmann Laborgeräte (DURAN® glass), Kartell (PMP plastic), ISOLAB Laborgeräte, BRAND (BLAUBRAND®) and VITLAB. Rather than treating graduated cylinders as interchangeable, it breaks down what actually separates them, Class A versus Class B accuracy tolerances, glass versus plastic construction, base stability and certification standards such as USP conformity, and explains which of these differences genuinely matter depending on the work.

Read full story
Top 5 Brands for Erlenmeyer Flasks in 2026

1 min read

Top 5 Brands for Erlenmeyer Flasks in 2026

This guide compares the five Erlenmeyer flask brands most commonly used across Australian laboratories today: DWK Life Sciences (DURAN®), ISOLAB Laborgeräte, LLG Labware, BRAND and Kartell. Rather than treating all Erlenmeyer flasks as interchangeable, it breaks down what actually separates them in practice, wall thickness consistency, thermal shock resistance, neck and closure compatibility, and material choice between borosilicate glass and polypropylene, and explains which of these differences matter for which kind of lab work.

Read full story

$93.91

Inc. GST