Diffstak 100/300M

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 100 (ISO100 inlet) design has been proven over many years with thousands of pumps installed.
This pump has a manually operated high vacuum isolation valve and is supplied with: NW25 elbow, NW25 centering-ring, NW25 clamp, water pipe couplings and ferrules, inlet ISO 100 Co-Seal.

Dane techniczne
Pumping speed  
  nitrogen 280 l s-1
  hydrogen 500 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 ISO100
Backing connection NW25
Cooling water connection 6 mm compression fittings
Heater power 0.65 kW
Min cooling-water flow at 20°C 60 l h-1
Pneumatic connections 6mm coupling x ¼ BSP male stud
Pneumatic actuating pressure  
  Minimum 2.4bar / 35psi
  Maximum 6.9bar / 100psi
  100/300M 12kg
  100/300P 13kg

* For maximum throughput
100/300P only