Bell Jars
Bell jars are glass containers which are shaped like a bell. Although they are predominately made from glass, they can also be manufactured in metal such as stainless steel. This type consists of base plates, base wells and feed-through collars; it also needs a viewing window as it is not transparent. Bell jars can be used to create and contain a low-quality vacuum. The jar is placed on the base and vented to a hose fitting which is connected to a vacuum pump. The lower edge forms a flange of heavy glass and its bottom is smooth for better contact. The vacuum creates a compression force so there is no need for a seal. This can only be used in applications below atmospheric pressure. The second use of a bell jar is for preservation. This is constructed of much thinner glass and as the base flange is delicate, it is not suitable for creating a vacuum. Instead, it can be used as a basic form of protection for fragile objects or specimens. Bell jars are mainly used in educational facilities to create a low-cost vacuum for experiments. In professional laboratories, they may be used for preservation but a more efficient vacuum chamber is used instead of a bell jar.
-
Duran Flat Flange Round Bottom Flask DURAN 243957102 - Flat Flange Flasks (1 Supplier)
Request a Quote -
Duran Flat Flange Round Bottom Flask DURAN 243957608 - Flat Flange Flasks (1 Supplier)
Request a Quote -
Duran Flat Flange Round Bottom Flask DURAN 243958604 - Flat Flange Flasks (1 Supplier)
Request a Quote -
Duran Flat Flange Round Bottom Flask DURAN 243959103 - Flat Flange Flasks (1 Supplier)
Request a Quote -
Duran Flat Ground Flange Beakers 2l 243916308 - Flat Flange Beakers (1 Supplier)
Request a Quote -
Duran Lid Flat Flange DN 150 DURAN 243926009 - Flat Flange Lids (1 Supplier)
Request a Quote -
Duran Plan Flange Polished DN 100 210354608 - General Lab (1 Supplier)
Request a Quote -
Duran Rolled Flange Bottles DURAN 214653609 - Rolled Flange Bottles (1 Supplier)
Request a Quote -
Duran Rolled Flange Bottles DURAN 214654408 - Rolled Flange Bottles (1 Supplier)
Request a Quote -
DWK Life Sciences (Duran) DURAN® Bell jars with knob, for vacuum use, 250 x 244605902 - General Lab (1 Supplier)
Request a Quote -
DWK Life Sciences (Duran) DURAN® Bell jars with knob, for vacuum use, 255 x 244606607 - General Lab (1 Supplier)
Request a Quote -
DWK Life Sciences (Duran) DURAN® Bell jars with knob, for vacuum use, 300 x 244606907 - General Lab (1 Supplier)
Request a Quote -
E. coli Reagent Kit Vienna Water Monitor RK_EC_1000 - E-coli Online Monitoring (1 Supplier)
Request a Quote -
E. coli Reagent Kit Vienna Water Monitor RK_EC_250 - E-coli Online Monitoring (1 Supplier)
Request a Quote -
E. coli Reagent Kit Vienna Water Monitor RK_EC_500 - E-coli Online Monitoring (1 Supplier)
Request a Quote -
Elbow Fitting Npt 1/8inch 639795 Vacuubrand - General Lab (1 Supplier)
Request a Quote -
Elma Pump ES 3000 115V 102 4952 - Accessories (1 Supplier)
Request a Quote -
Elma Pump ES 3000 230 V 102 4951 - Accessories (1 Supplier)
Request a Quote -
Elma Pump ES 5000 230V 101 6086 - Accessories (1 Supplier)
Request a Quote -
Eppendorf Vertrieb Pump Unit Complete with Piston 25ml 4965850100 - General Lab (1 Supplier)
Request a Quote -
Eppendorf Vertrieb Pump Unit Complete with Piston 50ml 4965850118 - General Lab (1 Supplier)
Request a Quote -
Eppendorf Vertrieb Tube For Pump-Valve 0.5m 4420823008 - General Lab (1 Supplier)
Request a Quote -
Etfe Thread Adapter Gl45/Gl32 0006-4003 Burkle - Mini solvent pump (1 Supplier)
Request a Quote -
Etfe Thread Adapter Gl45/Gl38 0006-4002 Burkle - Mini solvent pump (1 Supplier)
Request a Quote -
External Protocol Printer MC 000710mmM Medcenter - General Lab (1 Supplier)
Request a Quote