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 63 (ISO63 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: NW10 elbow, NW10 centering-ring, NW10 clamp, water pipe couplings and ferrules, inlet ISO63 Co-Seal.
| Pumping speed | |
| nitrogen | 135 l s-1 |
| hydrogen | 200 l s-1 |
| Min backing pump displacement* | 5 m3h-1 |
| Recommended backing pump | RV5 |
| Recommended fluid | Santovac® 5 |
| Fluid charge (dry) | 60 ml |
| Inlet connection compatible with | ISO63 |
| Backing connection | NW10 |
| Cooling water connection | 6 mm compression fittings |
| Heater power | 0.45 kW |
| Min cooling-water flow at 20°C | 42 l h-1 |
| Pneumatic connections | 6 mm coupling x ¼” BSP male stud |
| Pneumatic actuating pressure | |
| Minimum | 2.4 bar / 35 psi |
| Maximum | 6.9 bar / 100 psi |
| Weight | 9 kg |
Malaysia
