Small Dry Pumps offer a wide variety of possibilities. The wide functionality allows for many applications. Lubricant-free within the vacuum envelope and hermetically sealed means a totally clean and dry vacuum to prevent cross contamination, advanced scroll-form and tip-seal, technologies deliver best‑in-class vacuum performance and unrivalled ultimate vacuum levels, unique tip seal design significantly reduces wear to minimise maintenance and extend service life, quiet operation with typical noise during operations.
D-LAB membrane pumps with their chemically resistant Teflon® heads, diaphragms and Kalrez® valves, offer the chemical or pharmaceutical laboratory user a wide range of choice. The one head, 100 mbar ultimate vacuum pumps are suitable for use with drying equipment Or for replacing water-jet pumps, whilst the two head, 8 mbar ultimate vacuum pumps are suitable for rotary evaporation, gas transfer and a wide range of medium vacuum applications.
D-LAB membrane pumps can get peak pumping speed to 2,0 m3h-1 and ultimate vacuum to 100 mbar.
XDD1 diaphragm pumps are used for backing small compound turbomolecular pumps in clean, high vacuum applications, and also designed to be free standing bench top units. A typical ultimate pressure of better than 5 x 10-8 mbar can be achieved when using an XDD1 to back a 70 ls-1 turbomolecular pump.
The 24 V version is designed to provide a complete pumping package using the Edwards
This version is suited to the customer who is building their own a system. The pump is a compact and efficient. Under normal conditions the XDD1 is virtually maintenance free, the lifetime of the diaphragms and valves is typically > 10,000 operating hours, depending on the application.
With exceptional pumping capability, ultimate vacuum performance and state of the art design features, the nXDS dry scroll pump is the best performing pump in its class. nXDS improves on the original XDS pump technology by offering increased pumping speeds, combined with lower ultimate pressures, low power consumption and reduced noise. nXDS-C has been modified so that it is more suitable for use on vapour handling processes and may be used in some applications involving corrosive substances.
This chemically resistant version is fitted with Chemraz® internal valve pads and stainless steel fittings. nXDS dry scroll pumps can get peak pumping speed from 6,8 m3h-1 to 28,0 m3h-1 and ultimate vacuum from 0,03 mbar to 0,02 mbar.
XDS scroll pumps have become industry standard when dry pumping is essential, proving to be a robust and clean vacuum pump solution in a range of applications and processes. The XDS35i pump has an innovative bearing shield that isolates the vacuum environment from all forms of lubricant, making it not only lubricant-free but hermetically sealed. XDS35iNGB variant has had the gas ballast feature removed for applications such as rare gas recirculation and gas recovery.
The XDS46i shares many of the same features of the XDS35i but with a peak speed of 40 m3h-1. The pump has been optimised for maximum pumping speed at inlet pressures between 1 mbar and 10 mbar, making it ideally suited for LCMS and ICPMS applications requiring higher pumping speeds.
Edwards is delighted to introduce the new air cooled nXLi dry pump range, designed to deliver a consistent performance worldwide with complete user flexibility in mind. This new single phase pump is available in two options: nXL110i and nXL200i. Both are optimised for LCMS and ICPMS duties and are capable of handling gas loads of up to 25 slm.