PVC Coated Flask Weight Rings
PVC-coated flask weights (lead ring stabilisers) are designed to hold laboratory flasks firmly in place during water bath, shaker bath and benchtop procedures. Each ring features a dense metal core encased in a smooth, bright red PVC coating that grips the flask gently without scratching the glass, while the added...
PVC-coated flask weights (lead ring stabilisers) are designed to hold laboratory flasks firmly in place during water bath, shaker bath and benchtop procedures. Each ring features a dense metal core encased in a smooth, bright red PVC coating that grips the flask gently without scratching the glass, while the added mass keeps lightweight or buoyant flasks from tipping, floating or wandering during agitation.
The open ring design simply slips over the neck of the flask and rests on the shoulder — no clamps, fasteners or assembly required. The chemical-resistant PVC coating withstands routine exposure to laboratory environments and is easy to wipe clean, making these rings a durable, low-maintenance safeguard for valuable glassware and samples.
Uses & Applications
• Water & shaker baths: prevents Erlenmeyer and round bottom flasks from floating, tipping or drifting during incubation and agitation.
• Benchtop stability: anchors tall or top-heavy flasks during stirring, titration and sample preparation.
• Round bottom flask support: acts as a stable base ring so round bottom flasks can stand upright on the bench.
• Culture & media work: keeps culture flasks steady in orbital shakers and incubated baths in microbiology and cell culture labs.
• Education & research: everyday flask stabilisation in school, university, industrial and QC laboratories.
Features & Benefits
• Anti-float, anti-tip design — substantial weight (0.22–0.91 kg) keeps flasks secure even in agitated baths.
• Glass-safe PVC coating — soft, smooth surface protects flasks from chips, scratches and metal-on-glass contact.
• Chemical & corrosion resistant — PVC shell shields the metal core from moisture and common non-corrosive lab chemicals (not resistant to corrosive chemicals).
• High-visibility red finish — easy to locate in busy baths and shared laboratory spaces.
• Tool-free use — slips on and off in seconds; one ring fits a range of flask sizes within its diameter class.
• Four sizes available — 48 mm to 74 mm inner diameter to suit flasks from approximately 125 mL to 2000 mL.
Specifications & Ordering Information
|
Product Description |
Inner Diameter |
Weight (Approx.) |
Product Code |
Unit |
|
Flask Weight / Ring, PVC Coated |
48 mm |
0.22 kg |
SE.LW3109-01 |
Each |
|
Flask Weight / Ring, PVC Coated |
56 mm |
0.45 kg |
SE.LW3110-01 |
Each |
|
Flask Weight / Ring, PVC Coated |
61 mm |
0.68 kg |
SE.LW3111-01 |
Each |
|
Flask Weight / Ring, PVC Coated |
74 mm |
0.91 kg |
SE.LW3112-01 |
Each |
|
Material |
Cast iron / lead-free metal core with non-corrosive chemical-resistant PVC coating |
|
Coating |
Bright red PVC — protects glassware from scratching and chipping |
|
Design |
Ring/donut shape, slips over the neck and rests on the flask shoulder |
|
Compatibility |
Erlenmeyer (conical) flasks, round bottom flasks, filter flasks |
|
Typical Flask Fit |
|
|
Temperature Use |
Suitable for water bath and shaker bath applications |
|
Sold As |
Each (individually) |
| Size |
48mm ID, 56mm ID, 61mm ID, 74mm ID |
|---|