Stoppers

Filter

 Laboratory threaded joints, GL 14 / 18 / 25 / 32

Bohlender

Connecting equipment and fittings with GL threads with hard-walled tubing or tubes made of glass, plastic or metal. Fixing probes, thermometers, dip tubes or cables in reaction vessels. Black screw caps made of PPS, inner parts consisting of a v-ring (PPS), a tapered ring and a sealing ring (both PTFE) as well as an o-ring (FKM) for tubing diameters under 3 mm (not exposed to the medium). Good chemical resistance, the medium is only exposed to PTFE. Temperature resistant from -50 to 250 °C, pressure stable up to 10 bar, suitable for vacuum....

 Membrane Cap, PP/ PTFE

DWK

Cap from PP, membrane made of PTFE with 0.2 µm pore size. Ideal for autoclaving processes because the membrane permits pressure equalisation and tight sealing, reducing the risk of contamination. Temperature resistant up to 140°C. Typical applications: storage or transport of gas generating media, autoclaving of media....

 Screw cap for culture tubes, PP, with seal

DWK

With seal from TPE....

 Screw caps for narrow-mouth bottles, PP 28

Watzdorf

PP Cap (Pilferproof) 28 neck finish, with approx. 19.4mm inner mouth....

 Stoppers, PE for centrifuge tubes, PP

BRAND

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 Pouring rings, PP

DWK

Autoclavable to 140 °C (steam)....

 NS stoppers, PE

Isolab

Hexagon stoppers for NS connections....

 NS-Glass stoppers, hollow borosilicate glass 3.3

Isolab

Manufactured from borosilicate glass 3.3 which is resistant to heat and almost all chemicals. They meet the highest quality standards according to DIN 12252. Lower closed end of stopper features a "drip-tip" to ensure adhered liquid is returned to the flask. Hexagonal flat head prevents the stopper from rolling and allows stopper to be stood on end preventing contamination of the ground surface....

 Ribbed stoppers, LD-PE

Böttger

  • Made from high quality polyethylene
  • Ribbed plugs with 2 sealing ribs for very tight sealing
  • Easy handling with a high, ribbed grip
  • Easy to open by tilting ("one-hand operation")
...

 Stoppers, hollow , HDPE

Mraz

Fits standard conical joints....

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