Diffstak 100/300M, 230-250V, 1-ph, 50/60Hz

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.

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
Weight
100/300M	12kg
100/300P	13kg

* For maximum throughput
^† 100/300P only