Description
BOLA spherical ground joint grip collar seals, S 35, are PTFE sealing elements for spherical ground joints in laboratory glassware. Made of polytetrafluoroethylene (PTFE), each seal has a protruding grip collar and sealing rings on the outside to support secure seating at the joint. They provide high-vacuum-tight sealing with a leak rate of less than 1 × 0,01 mbar × l × s/1 and a robust construction intended for continuous use. Dimensions follow European standard size S 35, matching corresponding spherical ground joint interfaces used in chemical and analytical apparatus. The pack contains 2 pc(s) with a net weight of 0,0054 kg, offering a practical set for routine joint maintenance. These BOLA seals from manufacturer Bohlender suit spherical ground joint sockets, balls and related connections where PTFE chemical resistance and a reliable vacuum seal are required. They integrate into laboratory setups that rely on standardised spherical joints and need durable, grip-collar-assisted sealing without additional hardware complexity.
This article is part of PVC, PTFE & other tubing, in Tubing, hoses & fittings.
Key features
- Pack size: 2 pc(s)
- Product type: Spherical ground joint grip collar seals
- Material: Polytetrafluoroethylene (PTFE)
- Size: European standard S 35
- Design: Protruding grip collar with external sealing rings
- Seal performance: High-vacuum-tight, leak rate < 1 × 0,01 mbar × l × s/1
- Technical Information Sheet:
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Questions about BOLA Spherical Ground Joint Sleeves, S 35 PTFE
What is this article?
BOLA Spherical Ground Joint Sleeves, S 35 PTFE is the article on this page. Luminix Health distributes Bohlender for laboratory use. It sits in PVC, PTFE & other tubing, inside Tubing, hoses & fittings, in Labware.
PVC is the flexible everyday tube for water and mild aqueous liquids. PTFE is the stiff, almost inert tube for solvents. Other polymers sit between them. The bore, the wall and the chemical resistance are the specification, and the tube is cut to length.
Tubing is how a liquid or a gas moves between two vessels without being poured. Silicone stays flexible and survives repeated autoclaving. PTFE resists almost every solvent and is stiff. PVC is the ordinary flexible line for water and for mild aqueous work. The fitting, not the tube, is what usually leaks: the barb, the thread and the stopcock have to match the tube bore. Glass and plastic apparatus around these lines is indexed under ISO laboratory ware.
Which category should I open next?
The category is Tubing, hoses & fittings. The sub-category is PVC, PTFE & other tubing. The catalogue is Labware.
Shelves beside this one are Hose connectors, adapters & fittings, Stopcocks & valves, Silicone tubing and Tubing accessories.
What should I check before I order?
When this page shows a safety data sheet, use that manufacturer file. Hazard text does not belong in the sales description. For a pack size, a grade or a certificate that is not on the page, send a quote request or contact the team.
How does ordering and shipping work?
Luminix Health distributes this article from the heart of Europe. Articles in stock ship within 2–5 business days. Standard delivery is free from €250 excl. VAT. Cold-chain goods and dangerous goods under ADR are never included in that free delivery. The terms are in the Shipping Policy. The full brand index is on shop by brand. Who we are is on about us.
Which other categories should I open?
The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.