Attention:

Certain features of Sigma-Aldrich.com will be down for maintenance the evening of Friday August 18th starting at 8:00 pm CDT until Saturday August 19th at 12:01 pm CDT.   Please note that you still have telephone and email access to our local offices. We apologize for any inconvenience.

ASI Pump Replacement Parts

Analytical Scientific Instruments (ASI) cartridge check valve design offers self-priming convenience, rugged, crush proof construction, rapid response time (ball seats more quickly, for less pulsation and a more stable flow), and replaceable outlet filters (to protect system from partifcles). If your pump model is not listed, please call us. UHMW PE - ultra-high moleculare weight polyethylene.