Cones with NS joint, DURAN® tubing

Melting point 175 °C. Excellent chemical resistance. Rigid. Heat resistant up to 150 °C, sizes colour coded.

Chrome-nickel steel.

Melting point 175 °C. Excellent chemical resistance. Rigid. Heat resistant up to 150 °C, sizes colour coded.

Uniform wall thickness distribution makes these flasks ideal for heating applications and distillations. The flasks are manufactured from a hydrolytically resistant borosilicate glass 3.3, which is defined as "Type I, Class A" in the ASTM Specification E 438.ASTM D86DIN EN ISO 3405

For all glass joints. Transparent, vacuum tight, water washable and water soluble. Maintains practically the consistency between -30 °C and 200 °C, non-solidifying. Compatible with most elastomers. Tube of 80 g.

An effective alternative to common PTFE joint sleeves and PTFE stoppers.Air leakage <10-8 to 10-6 mBar l/s (vacuum and pressure)Solvent leakage from containers < 0.1 to 0.03mg/dayTemperature range: -196 to 300°C

Seals without grease - no grease residues are left in the analysis. Excellent chemical resistance. Can be used in temperatures from -200 to 260 °C. Wall thickness only 0.05 mm. Wide range of applications, also suitable for vacuums down to 0.1 mbar, e.g. for rotary evaporators.

DIN 30657 gas, trace and leak detection fluid. Non-allergenic, non-toxic and odourless. Suitable for all pressure ranges. Non-flammable and therefore suitable for all technical gases such as ammonia, argon and other noble gases, freon, carbon dioxide, coal gas, compressed air, propane, oxygen, nitrogen, water etc. Propellant-free. Unpressurised canister. Flash-point greater than 50°C. Unlimited shelf life. Tested and approved under DIN-DVGW-No. NG to 5170 AN 0456.Spray head not included. Please order separately.

For use with ground glass joints. Suitable for vacuums up to 0.1mbar. Reusable and long lasting. The sealing ribs grip on the inside wall of the glass socket, sealing without the need for grease and enabling the cone to be freed easily when required.

For tapered ground joints as outlined belowWith or without set screwFor tapered ground joints as outlined below

With knurled gripping ring at the top of the cone for easy removal. For gas, liquid and vacuum-tight cone joint connections with sizes as outlined below. Reusable. With reinforced external ribs for a high-vacuum tight seal (leakage rate: < 1x10-4mbar x I x s-1). No joint sealant or grease required.

Without silicone. Designed as vacuum and high vacuum grease. No silicone derivatives, polymerisation or gumming. Excellent adhesion and viscosity. Acid/alkaline resistant. Locked joints can be loosened by brief, gentle heating. Can be used to make temporary glassware repairs. Biodegradable. Non-toxic in normal use.