The compact water-cooled Diffstak pumps with an integral cooled baffle offer exceptionally clean pumping with very low backstreaming, reduced outgassing, and a reduction in the number of elastomer seals required for installation.
The Edwards Diffstak (ISO100 inlet) design has been proven over many years with thousands of pumps installed. The unvalved Diffstak's are for systems requiring the highest possible ultimate vacuum or for those which do not need a high vacuum valve.
This pump has an unvalved ISO collar inlet flange and is supplied with: NW25 elbow, NW25 centering-ring, NW25 clamp, water pipe couplings and ferrules, inlet ISO Co-Seal.
|nitrogen||300 l s-1|
|hydrogen||535 l s-1|
|Min backing pump displacement*||5 m3h-1|
|Recommended backing pump||RV5 or RV8|
|Recommended fluid||Santovac® 5|
|Fluid charge (dry)||125 ml|
|Inlet connection compatible with|
|Cooling water connection||6 mm compression fittings|
|Heater power||0.65 kW|
|Min cooling-water flow at 20°C||60 l h-1|
* For maximum throughput