Screw vacuum pumps

CONTACT

VAKUUM BOHEMIA s.r.o.
Lidická kolonie 47
586 01 Jihlava

Phone: +420 567 322 487
Service: +420 567 330 556

E-mail: info@vakuum-bohemia.cz

VAKUUM BOHEMIA offers sale, servicing, and repair of screw vacuum pumps by Busch, Rietschle and GEV.

Screw vacuum pumps are used in areas were other vacuum pumps cannot be used. Vacuum pumps are dry-running and are ideal for chemical and pharmaceutical applications. Vacuum pumps can pump explosive gases and be installed in areas where there is a risk of explosion (ATEX). Screw vacuum pumps are usually cooled by water. Their accessories include exchangers for air cooling or secondary water cooling. Parts in contact with the medium can have their surfaces modified in order to resist chemicals. Installation of rinsing allows the vacuum pump to be cleaned before stopping or during operation.

Operating principle of screw vacuum pumps

Screw vacuum pumps contain two screw rotors which rotate inside a cylinder. They are synchronised via a precision gear. Gas is captured in the space between the cylinder and the screw and then transported to the exhaust.

Standard vacuum pumps	Sets	ATEX certification


Screw vacuum pumps are oil-free vacuum pumps achieving a fine vacuum in a single stage. To pump corrosive gases, these vacuum pumps include a surface coating.	Screw vacuum pumps are often supplemented with customized instrumentation, auxiliary vacuum pumps, rinsing and control systems.	Screw vacuum pumps and systems with these pumps are suitable for handling explosive gases or for use in environments with a risk of explosions.

Parameters of screw vacuum pumps:

pumping speed: from 100 m³/h up to 2500 m³/h
motor power: from 3.5 kW to 55 kW
max. vacuum: 0.05 mbar_(abs)
external ATEX: zone 1 or 2
internal ATEX: zone 0 or 1 or 2
TEFLON coating

Advantages of screw vacuum pumps:

dry-running
contactless rotors and stators
high vacuum in a single-stage vacuum pump
anti-corrosion surface coating
nearly maintenance-free
possibility of regulation with a frequency converter

Our services:

vacuum systems with screw vacuum pumps
sale of screw vacuum pumps
sale of spare parts
sale of accessories (dampers, air filters, rinsing, frequency converters)
on-site servicing
repair and overhaul of screw vacuum pumps

Applications:

chemical industry
vacuum drying
vacuum furnaces
metal and other coatings
vacuum distillation and drying