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1) Rotary Pumps:

**1) EM Series Two stage Rotary Pump (Edwards):  The EM range of oil-sealed rotary pumps - renowned for their high ultimate vacuum, rapid pumping speed, quiet operation and ability to handle vapour - have become the industry standard for laboratory and light industrial applications.
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**2) RV Series Two stage Rotary Pumps (Edwards):  Edwards RV pumps have become the industry standard for scientific primary pumping applications. RV pumps are uniquely capable of delivering high or low throughputs with high ultimate vacuum.
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**3) RV Atext Two stage Rotary Pumps (Edwards) : ATEX RV pumps have an external ATEX classification of Ex II 2G IIC T4 or Ex II 2G IIB T4 and are suitable for use in potentially explosive atmospheres.
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**4) ATEX EM*8 One & Two Stage Rotary Pumps (Edwards): ATEX EM*8 pumps have an external ATEX classification of Ex II 2G IIC T4 or Ex II 2G IIB T4 and are suitable for use in potentially explosive atmospheres.
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**5) Rotary Vane Vacuum Pumps TRIVAC B Range(Leybold):  The TRIVAC B is part of the well-pro- yen TRIVAC concept. All pumps from the D 4 B to the D *5 B model are equipped either with single-phase or three-phase motors. D *0 - *5 B models are equipped with three-phase motors.
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**6) TRIVAC BCS, Two-Stage Rotary Vane Vacuum Pumps(Leybold) : The TRIVAC BCS pumps are oil sealed vacuum pumps operating according to the rotary vane principle. Oil which is injected into the pump chamber is used for sealing, lubrication and cooling purposes.
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**7) TRIVAC E, Two-Stage, Oil Sealed Rotary Vane Vacuum Pump (Leybold):  The TRIVAC BCS pumps are oil sealed vacuum pumps operating according to the rotary vane principle. Oil which is injected into the pump chamber is used for sealing, lubrication and cooling purposes.
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**8) Rotary Vane Vacuum Pumps SOGEVAC (Leybold): SOGEVAC pumps are oil sealed rotary vane pumps. Oil injected into the pump chamber for sealing, lubrication and cooling of the pump is recycled from the pump's oil reservoir and filtered, if required, before it is injected.
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**9) PentaLine Series Two stage Rotary Vane Pumps(Pfieffer): PentaLine rotary vane pumps that offer pumping speeds of up to *5 m3/h are the perfect solution for applications in the low- and medium-vacuum ranges of down to ***3 hPa.
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***0) DuoLine Series Two stage Rotary Vane Pumps(Pfieffer): DuoLine rotary vane pumps cover all applications in the low and medium vacuum range of up to ***3 hPa.


2) Oil Diffusion Pump:

**1)  HT Series (Edwards): The HT high throughput series is the pinnacle of Edwards diffusion pump knowledge with technology aimed specifically at industrial users. These pumps are designed to give a high throughput (pressure multiplied by pumping speed) at 4 x *0 mbar
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**2) Oil Diffusion Pumps DIP Series (Leybold): The DIP range of pumps was developed for operation in industrial systems. Excellent vacuum performance data combined with the inherent ruggedness of this kind of pump, make Leybold diffusion pumps a reliable component in high and medium vacuum applications.
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**3) Leybojet**0:The water-cooled LEYBOJET **0 was developed especially with the medium vacuum in mind. The principal areas of application of the LEYBOJET **0 are modern sputtering processes as well as vacuum melting and drying plants.


3) Dry Compressing Vacuum Pumps :

**1) CXS Series Chemical Dry Pump(Edwards): The CXS incorporates innovative screw design features with simplicity and reliability in mind, a ‘Plug and Pump’ philosophy has been adopted.
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**2) CDX ***0 Dry Vacuum Pump (Edwards):   The CDX***0 is a double ended mechanism for the chemical process, pharmaceutical and petrochemical industries.
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**3) EDSeries - Dry Chemical Pumps (Edwards) : EDP pumps are based on Edwards’ oil-free, non-contacting and reverse claw mechanism.  Dry pumps completely eliminate all problems of process contamination and creation of polluted effluent, which are experienced with traditional wet vacuum pump technologies.
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**4) Diaphragm Vacuum Pumps DIVAC (Leybold): This range of vacuum pumps was developed especially for laboratory operations and as backing pumps for (wide range) turbomolecular pumps.DIVAC L diaphragm pumps are suited for almost all requirements in the che- mistry lab.
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**5) Oil-free SCROLLVAC  SC 5D to SC *0 D (Leybold): The scroll pump is now being used as an oil-free vacuum pump. Every scroll pump consists of two Archimedes spirals engaging each other with an offset of **0°.act with the pumped medium are made of PTFE (Teflon), FFPM (Kalrez) and PVDF (Solef).
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**6) SCREWLINE Pumps series (Leybold) : The Screw Vacuum Pumps SCREWLINE were developed in view of the special requirements of industrial applications. Screw Vacuum Pumps are dry com- pressing backing pumps, the operation of which is based on the screw princi- ple.
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**7) DRYVAC Pumps (DV **0 to DVR ***0 C-i) (Leybold) : DRYVAC is a new family of dry com- pressing screw vacuum pumps avail- able with different features depending on the specific application. The DRYVAC family was developed in con- sideration of the special requirements of the photovoltaic, display and pro- cess industries.
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**8) CHEMROVAC Pumps (CHEMROVAC  TRV **4 to **0) (Leybold): The CHEMROVAC TRV pumps are *-stage roots pumps. Each stage con- sists of two rotors rotating in opposite directions inside a casing (pumping chamber) and having slight clearances against the inside wall surface of the casing and also between the rotors.
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**9) PFIEFFER Dry Screw Pumps( HeptaDry Series) : HeptaDry pumps  are optimally suited for their applications in connection with low and medium vacuum. The pumping speeds that are offered by this series of products range from **0 to **0 m3/h. One special advantage consists of their single-piece, variable-pitch rotors.Can be used ideally either as stand-alone pumps or in combination with our OktaLine Roots pumps.


4) ROOTS :

**1)  EH Series (Edwards)
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**2) HVSeries Mechanical booster pumps (Edwards):These pumps are backed by Edwards Dry Pumps or Mechanical Booster pumps.This range of high capacity mechanical booster pumps is designed to operate reliably for long periods with no need for maintenance.
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**3) RUVAC WA/WAU (Leybold): The series WA/WAU Roots vacuum pumps are provided with directly flange-mounted air-cooled standard three-phase motors. The oiled radial sealing rings of the RUVAC WA/WAU for sealing the shaft against the atmosphere are made of FPM (FKM) (fluor polymer)
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**4) RUVAC WS/WSU (Leybold) :The series WS/WSU Roots vacuum pumps are provided  with Air-Cooled Canned Motors.
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**5) RUVAC WH/WHU (Leybold): Both motors and oil reservoirs are water cooled thereby perfectly balanc ing the internal temperature manage- ment of the pumps resulting in signifi- cantly lower oil temperatures and thus a longer oil service life. At ultimate pressure, emissions are reduced by approximately *0% and the motor coils can sustain higher loads while at the same time offering improved efficiency.
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**6) RUVAC WSLF (Leybold): The pumps of these series are especially adapted Roots vacuum pumps from the RUVAC WS series which are intended for operation with gas lasers. They are driven by a canned motor so that a shaft seal for sealing against atmospheric pressure is not required. Air-cooled series with nominal pumping speeds of ***0 m3 x h*1 (**9 cfm) are available.
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**7) Convection cooled Series (OktaLine®) (Pfieffer): Convection Cooled Roots Pumps offer pumping speeds ranging from **0 to *5, **0 m3/h. They can be safely employed for low and medium vacuum applications in the coating or semiconductor industry, in research & development, metallurgy or in chemistry and process technology.
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**8) Gas-circulation-cooled (OktaLine® G) (Pfieffer):High pressure ranges and maximum differential pressures, in particular, are the ideal site of operation for the OktaLine G series as-circulation-cooled Roots pumps. They are a special version of usual Roots pumps. An OktaLine G pumping speed of *****2, **0 m3/h is achieved at various power levels, ranging from 5.5 kW up to *2, **0 kW rated power.
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**9) OktaLine® ATEX (Pfieffer)


5) Ions Pumps:

**1) Miniature Pump (Varian):The Miniature Vaclon pump is a diode configuration and provides approximately 0.4 I/s of nitrogen pumping speed. The 2 I/s model is a modified diode configuration to enhance starting at low pressure. The *0 I/s pump is a diode configuration with high efficiency for residual gases such as hydrogen.
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**2) Valcon Plus Series (Varian):  Vaclon Plus pumps are available with Diode, Noble Diode, and StarCell elements for various nitrogen pumping speeds. Diode Vaclon Plus pumps are regularly used in general purpose ultra high vacuum (UHV) systems for evacuating electron devices, and in sensitive electron microscopes.


6) Turbo Molecular Pump:

**1)  EXT & nEXT series (Edwards): Two basic technologies are used in these pumps: magnetic bearings and mechanical ceramic ball bearings. Ceramic bearings, which are lubricated for life by either grease or oil, have replaced conventional steel bearings. Magnetic bearings further increase reliability. Edwards' EXT and nEXT turbomolecular pumps use a hybrid bearing arrangement with a permanent magnet upper bearing and an oil lubricated ceramic lower bearing.
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**2) STP Magnetically Levitated Turbomolecular series (Edwards): The rotor is entirely suspended by magnetic bearings so all contact between the rotor and the remainder of the pump is eliminated. As well as giving very low vibration, the elimination of contact means no bearing wear and no requirement for consequent pump maintenance.
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**3) Turbovac/Turbovac MAG (Leybold):  The turbomolecular pumps from Leybold generate a high and ultra-high vacuum. In connection with a well rated backing pump, pressures below ****0 mbar (0.*5 x ****0 Torr) can be attained.
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**4) HiPace(r) Series(Turbopumps with hybrid bearing) (Pfieffer)
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**5) ATH-M Series (Turbopumps with *-axis magnetic levitation) (Pfeiffer)
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7) Valves and Guages:  

**1) APG **0 Active Pirani Vacuum Gauge (Edwards): Features include compact size for easy installation, a linear output, and a replaceable sensor tube. The new gauges are compatible with all Edwards TIC instrument controllers and other active gauge controllers and displays. They are also CSA, C/US approved as well as fully RoHS compliant due to their lead-free construction.
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**2) APGX-H Active Linear Convection Gauges (Edwards):  Edwards Linear Convection Vacuum Gauge has a wide measuring range from ***3 to 3 x **4mbar (***0 to 2.3 x **-Torr). The use of convection technology ensures accuracy and sensitivity are maintained to the top of the range.
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**3) Model **0 Barocel(r) (Edwards) :  The Model **0 Barocel transducer is an advanced design capacitance manometer which uses advanced technology to improve zero stability after temperature excursions or pressure overloads.
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**4) Model **5, **8 and **9 Barocel(r) (Edwards):The sensing cell utilizes a unique diaphragm design, stitch welding process, and a new sensing cavity geometry which provides enhanced resistance to particulate contamination.
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**5) CERAVAC Transmitters CTR **0 and CTR **1 (Leybold):The CERAVAC Transmitter with its diaphragm made of pure aluminium oxide ceramics offers excellent accuracy and reproducibility.
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**6) THERMOVAC Transmitters TTR *1 / TTR *1 S / TTR *6 S (Leybold): THERMOVAC transmitters are active sensors (pressure to voltage converters) using thermal conductivity according to Pirani. The value of the trigger point (TTR *1S, TTR *6 5) can be switched easily on the analog output and be shown on the display of the operating unit.
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**7) THERMOVAC Transmitter with Fieldbus Interface Profibus TTR **1 PB / TTR **6 PB (Leybold):  The THERMOVAC transmitters have been developed especially for integration into vacuum systems. Being active sensors (pressure to voltage converters) with a well-proven Pirani sensing cell and new operating and processing electronics these units offer a measurement range which spans  5 x ***4 to ***0 mbar (3.*5 x ***4 to **0 Torr).
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**8) PENNINGVAC Transmitters PTR **5 / PTR **5 S / PTR *3 (Leybold):   The PENNINGVAC transmitters have been developed especially for integration in programmable control systems. As active sensors (pressure to voltage converters) - equipped with a rugged cold cathode sensing cell and with matched operating and processing electronics - these transmitters offer a wide measurement range of I x *0.9 to I x ***2 mbar (0.*5 x ***9 to 0.*5 x ***2 Torr).



8) OIL:

**1) Dow Corning:  DC **4, DC **5
**2) Santovac 5
**3) Fomblin
**4) Krytox

Please contact us for details of our current stock or if your company has a specific requirement, get in touch and we will strive to meet your needs.