The neat and compact Diffstak pumps offer exceptionally clean pumping with virtually no outgassing and a reduction in the number of elastomer seals required for installation. The patented design provides the following advantages: Minimum size with maximum facilities; low backstreaming - pump shape combined with an inlet baffle reduces backstreaming to minimum; lowest number of seals to complete installation means clean pumping with minimal outgassing and maximum convenience. The Diffstak has a one-piece jet assembly that is easy to remove, clean and replace. The ejector stage ensures high backing pressure performance and continuous fluid purification.
