Text Box:   Text Box: In all fields of industry where vacuum is required, from atmospheric pressure up to 1x10-3 mbar (dully combined).  One of the most important features of these pumps is their ECOLOGICAL nature, since they can be applied for the pumping of water which pollutes the sewage and auxiliary pump fluids, or for the pumping of vapour which need to be recovered.  They are ideal for extremely short, large chamber, pumping cycles.

Text Box: [Vacuum Home]  [Gauges]  [KF Flanges]  [Rotary Vane]  [High Pressure Blowers]  [Mechanical Boosters]

About Us
Ancillaries
Bespoke
Centrifugal Pumps
Contact Us
Customers
Filters
Gauges
General Service
High Pressure Blowers
Home
KF Flanges
Liquid Ring
Mechanical Boosters
Peristaltic
Pressure
Vacuum
CDS Pump Specifications
DEX Pump Specifications
F Pump Specification
MEX LEX Specification

Text Box: The Roots-type pumps have a wide range of applications in the field of vacuum.  They are preferably used in combination with a previous series of pumps (liquid ring pumps, rotary vane pumps, etc.) and have a very extensive application in the field of low vacuum.  If there is a suitable graduation between the primary pump and the various stages, high pumping capacities at very low vacuum can be achieved.  The application of Roots type  pumps, forming a group with primary pumps, is extremely varied and extensive, being especially recommended where high pumping speeds at low pressure are required.  Applications are wide and varied, they are mainly used to pump high volumes of gas, or to very quickly evacuate a chamber.

[ About Us ] [ Ancillaries ] [ Bespoke ] [ Centrifugal Pumps ] [ Contact Us ] [ Customers ] [ Filters ] [ Gauges ] [ General Service ] [ High Pressure Blowers ] [ Home ] [ KF Flanges ] [ Liquid Ring ] [ Mechanical Boosters ] [ Peristaltic ] [ Pressure ] [ Vacuum ] [ CDS Pump Specifications ] [ DEX Pump Specifications ] [ F Pump Specification ] [ MEX LEX Specification ]

Text Box: The Roots-type pumps belong to the group of positive displacement delivery pumps. Two symmetrical pistons having an eight feature, housed in the pump body, rotate in opposite directions with no contact neither between each other nor with the pump body, meshing continuously. The pistons are driven by a set of gears with synchronised rotation, which guarantees friction free movement.  The Roots pumps drive shaft is directly driven by the motor shaft by means of an elastic coupling.  The shaft passage is closed off by seals with an oil chamber, the oil being used as sealing fluid.  A cooling chamber is included for the shaft passage to eliminate the heat produced by the seal. The seals are made of VITON Fluorinated elastomer. The RNVB type is supplied with an AC three-phase motor and standardized flanges, in accordance with IEC standards.