Woulff Bottle with Ground Glass Stopper with Stopcock
The Sidearm Flask with Glass Stopcock is a versatile dispenser, ideal for liquids such as water, oils, and teas. Made from borosilicate glass 3.3, it offers high chemical and thermal resistance. Its detachable stopcock and stopper ensure a secure seal. Available in various capacities to meet diverse needs.
Side-Tube Glass Bottle with Stopcock
The side-tube glass bottle with stopcock is a versatile dispenser designed for serving and storing liquids such as water, oils, juices, teas, and infusions. Combining functionality, durability, and elegance, it is suitable for both personal and professional use in laboratories, hospitality, and industrial environments.
Manufactured in Borosilicate Glass 3.3
This bottle is made from borosilicate glass 3.3, known for its high thermal, chemical, and mechanical resistance. This material is widely used in chemical, pharmaceutical, and food industries due to its durability, transparency, and stability under extreme temperature conditions.
Stopcock and Stopper Features
The borosilicate glass stopcock is fully detachable for easy cleaning and maintenance. Its ground-glass design ensures a precise, tight fit, while the accompanying glass stopper provides a hermetic seal that prevents leaks and contamination.
- Chemical Resistance: Class 1 for water and acids according to DIN 12111 ISO 719 and DIN 12116; Class 2 for alkalis according to DIN 52322 ISO 695.
- Physical Properties:
- Linear expansion coefficient: 3.3
- Maximum working temperature: 500 °C
Safety and Maintenance
This dispenser offers both practicality and safety, as it can be sterilized in an autoclave and withstands temperatures up to 500 °C. It is recommended to avoid sudden temperature changes to maintain structural integrity.
*Available in multiple capacities to suit your specific needs.
Data sheet
- Material
- Borosilicate Glass
- Colour
- Clear
- Neck Thread
- Ground-Glass - Narrow
- Inner diameter neck
- 50 mm
- Standard Ground-Glass Joint
- Top 50/42 & lateral 29/32
- Closure
- Glass Stopper
- Tamper-Evident Seal
- without Tamper-Evident Seal
- Laboratory Stopcock
- Glass Stopcock & Ground Joint
- International Standards
- DIN 12037