Specifications
Specifications
Standard specifications for ground joint stoppers. Items marked Customizable are available upon request.
Request custom specs
| Size | Material | Joint Type | Style | Packaging |
|---|
| 14# Flip | VMQ / FKM | 14# Standard | Flip-style | 100/bag |
| 14# Threaded | VMQ / FKM | 14# Standard | Threaded | 100/bag |
| 19# Flip | VMQ / FKM | 19# Standard | Flip-style | 100/bag |
| 19# Threaded | VMQ / FKM | 19# Standard | Threaded | 100/bag |
| 24# Flip | VMQ / FKM | 24# Standard | Flip-style | 100/bag |
| 24# Threaded | VMQ / FKM | 24# Standard | Threaded | 100/bag |
Flip-style stoppers are suitable for general standard joints; threaded stoppers provide more secure fastening.
📌 Customization Options:
• Material options (VMQ / FKM / other special materials)
• Size options (14# / 19# / 24# / non-standard sizes)
• Style options (Flip / Threaded)
• Hardness range available
Product Description
I. Overview
The ground joint stopper (rubber replacement) is a sealing accessory designed specifically for standard ground joint glassware. Manufactured from silicone rubber (VMQ) or fluororubber (FKM), compatible with 14#, 19#, and 24# standard joints, serving as an ideal alternative to glass ground joint stoppers.
Compared to glass stoppers, rubber ground joint stoppers offer better elasticity, stronger sealing, and reduced risk of seizing. They are particularly suitable for applications requiring frequent opening and closing.
🔬 Product Advantages:
Standard Joint Compatible — 14#/19#/24# full coverage
VMQ/FKM Materials — Heat and chemical resistant
Elastic Sealing — Reliable sealing without leakage
No Seizing — Easier to open/close than glass stoppers
Ideal Replacement — Perfect alternative to glass stoppers
II. Key Performance Parameters
- Material: Silicone (VMQ) / Fluororubber (FKM)
- Sizes: 14# / 19# / 24#
- Temperature Range: -60°C ~ 250°C (varies by material)
- Applications: Standard joint glassware sealing
- Packaging: 100 pieces/bag
III. Material & Manufacturing
Manufactured from high-quality silicone rubber (VMQ) or fluororubber (FKM) via precision compression molding. Accurate dimensions, smooth surfaces, and excellent elasticity ensure perfect compatibility with standard ground joint glassware.
FKM offers superior chemical resistance for harsh environments including strong acids, bases, and organic solvents. VMQ provides a broader temperature range for alternating high/low temperature applications.
