Sealable · Splash-Resistant
Tall-Form Flat-Mouth Beaker
Vessels · Beakers

Tall-Form Flat-Mouth Beaker

Flat-Mouth · Sealable · 25mL – 3000mL · Multiple Capacities Available

The tall-form flat-mouth beaker combines the splash-resistant tall profile with the sealable flat-mouth design — an ideal choice for pharmaceutical, biotechnology, and automated laboratory applications. The flat rim is compatible with sealing lids, while the tall profile effectively prevents splashing. Manufactured from Borosilicate Glass 3.3 with excellent thermal and chemical resistance.

25 – 3000 mLCapacity
30 – 135 mmO.D.
58 – 280 mmHeight
1.5 – 2.4 mmWall Thickness

Specifications are subject to confirmation with your enquiry.

Request a Quote
  • Borosilicate Glass 3.3
  • Thermal shock up to 280°C
  • Flat-mouth design · Sealable
  • Tall profile · Splash-resistant
  • Compatible with automated systems
  • Chemical resistant

BRAND IDENTITY

Vissal® brand wordmark RichTech company logo

Vissal® is RichTech's own brand; RichTech is the company mark. Both are used together for this product's brand identification.

We will follow up on your inquiry as soon as possible. Custom sizes supported Samples available

Specifications

Specifications

Tall-Form Flat-Mouth Beaker · Specifications

Standard capacity ranges below. Custom capacities and special specifications available upon request.

Request custom specs
Capacity (mL)O.D. (mm)Height (mm)Wall Thickness (mm)Lid I.D. (mm)
2530581.527
5037681.634
10047841.744
15055971.852
250601241.857
400701302.067
500751402.072
600801502.077
800901752.087
1000951802.092
20001202402.3117
30001352802.4132

* Custom capacities and special specifications available. Contact us for details.
* Flat-mouth beakers have a smooth rim without a spout, compatible with sealing lids.
* Recommended lid I.D. values are nominal (O.D. minus approximately 3mm). Please use the beaker O.D. as the primary basis when selecting lids.
* Tall-form flat-mouth beakers have a height-to-diameter ratio of approximately 2.0, combining splash prevention and sealability.

Product Description

The tall-form flat-mouth beaker is the tall version of the flat-mouth beaker series, combining the splash-resistant tall profile with the sealable flat-mouth design. The taller profile effectively prevents splashing during heating and stirring, while the flat rim is compatible with sealing lids for secure sample storage and contamination prevention. Ideal for pharmaceutical, biotechnology, and automated laboratory applications.

Three Series · Flexible Selection

RichTech offers beakers in low-form (spouted), tall-form (spouted), and flat-mouth series:

1. Low-Form Beakers (Spouted)

  • Low-profile design with a low center of gravity for stable heating and stirring.
  • Spout ensures smooth, drip-free pouring.
  • Ideal for routine solution preparation, heating reactions, and liquid transfer.

2. Tall-Form Beakers (Spouted)

  • Taller profile effectively prevents splashing during heating and reactions.
  • Spout for smooth pouring.
  • Designed for extended heating and samples prone to splashing.

3. Flat-Mouth Beakers

  • Flat rim with no spout, compatible with sealing lids.
  • Ideal for applications requiring sealed storage or contamination prevention.
  • Particularly suited for pharmaceutical, biotechnology, and automated systems.

Design Features

  • Flat-Mouth Design: The rim is smooth and even without a pouring spout, compatible with sealing lids for secure sample storage and contamination prevention.
  • Tall Profile: The height-to-diameter ratio is higher, effectively preventing splashing during heating and stirring operations, reducing sample loss.
  • Clear Graduations: White or blue graduated markings on the beaker body allow for quick volume reading, meeting routine laboratory needs.
  • Uniform Wall Thickness: Even wall thickness minimizes thermal stress during heating, reducing the risk of breakage.

Material Advantage

Manufactured from Borosilicate Glass 3.3 in accordance with ISO 3585 standards. The ultra-low coefficient of thermal expansion (3.3×10⁻⁶/K) ensures resistance to thermal shock up to 280°C, making it suitable for heating, cooling, and a wide range of laboratory operations.

Quality Assurance

Every piece undergoes rigorous dimensional inspection, stress testing, and visual inspection to meet high laboratory standards, providing reliable performance for your experiments.

Note: Flat-mouth beakers do not have a pouring spout. When pouring liquids, we recommend using a glass rod for guidance to prevent liquid from running down the outer wall. For sealed storage, please select compatible sealing lids.

Applications

Common Configurations

  • Sealing Lid + Tall-Form Flat-Mouth Beaker Sealed sample storage, evaporation prevention
  • Hot Plate + Tall-Form Flat-Mouth Beaker Solution heating, sample dissolution
  • Glass Rod + Tall-Form Flat-Mouth Beaker Stirring, mixing reagents
  • Automated Systems + Tall-Form Flat-Mouth Beaker Automated laboratory integration

Specific Applications

Sealed Storage

Sample storage requiring evaporation and contamination prevention

Solution Preparation

Standard solutions, buffers, culture media

Sample Dissolution

Heating dissolution of solid samples

Heating Reactions

Water bath heating, hot plate heating

Automated Systems

Batch processing with automated equipment

Pharmaceutical Production

API preparation, intermediate storage

Biotechnology

Media preparation, sample storage

Teaching Labs

Basic chemistry experiments in schools and universities

Tip: Tall-form flat-mouth beakers offer the dual advantages of splash prevention and sealability, making them particularly suitable for extended heating operations where sample loss is a concern. For sealed storage, we recommend selecting compatible sealing lids.

Beaker Procedure

03

Sealing & Storage

  • Flat-mouth beakers are designed to be used with sealing lids for secure sample storage.
  • Ensure the rim is clean, dry, and free of residue before sealing.
  • Select a sealing lid that matches the beaker O.D. for optimal sealing performance.
  • For long-term storage, periodically check lid sealing performance.
  • The tall profile of tall-form flat-mouth beakers provides additional protection against contamination during storage.
04

Heating

  • Always heat beakers using a wire gauze or hot plate to ensure even heat distribution and prevent localized overheating.
  • Do not fill the beaker beyond 2/3 of its capacity to prevent boiling over during heating.
  • Gently stir with a glass rod during heating for even temperature distribution.
  • The tall profile effectively prevents splashing during heating operations.
  • When heating liquids, do not point the beaker opening toward yourself or others to prevent injury from splashing.
05

Pouring & Transferring

  • Flat-mouth beakers do not have a spout. When pouring, use a glass rod as a guide — place the rod against the rim and pour liquid along the rod into the receiving container to prevent liquid from running down the outer wall.
  • Tilt the beaker slowly to avoid overflow.
06

Cleaning & Maintenance

  • Clean promptly after use to prevent residue from drying and hardening.
  • Use dilute acid or specialized cleaning agents for stubborn residues.
  • Rinse with distilled water and air-dry upside down on a drying rack.
  • Due to the taller profile, pay extra attention to cleaning the bottom interior.
  • Store carefully to avoid chipping and breakage.

Tip: Tall-form flat-mouth beakers offer the dual advantages of splash prevention and sealability, making them particularly suitable for extended heating operations where sample loss is a concern. When pouring, use a glass rod for guidance. Clean and dry thoroughly after each use to extend product life.

Care & Notes

Show care & notes

Safety Notes

  • Inspect beakers for cracks or scratches before use — damaged glass may break when heated.
Do not
  • Always use a wire gauze or hot plate when heating — never place a beaker directly over an open flame.
  • When heating liquids, do not point the beaker opening toward yourself or others.
  • Do not place hot beakers directly into cold water — thermal shock may cause breakage.
  • Handle and store with care, avoiding impact with hard surfaces.

Need spec confirmation or bulk pricing?

Request a Quote
Tall-Form Flat-Mouth BeakerCapacity 25 – 3000 mL Get a Quote