Illustration
This is an aftermarket part, not an original manufacturer part. Instrument names and part
numbers identify what it fits and replaces; they remain the trademarks of their owners. The
manufacturer, country of origin, rated life and warranty are stated in the quote, before you
decide anything. If you need the OEM part, say so and I will quote that instead.
Pump and injector spares PTFE diaphragms for Shimadzu LC-20AD and LC-2010, 2 per pack
Replaces OEM part numbers:
Shimadzu 228-32784-91, old 228-24311-01 and 228-31828-00, Sciex 4425151
PTFE diaphragms for the LC-20AD and LC-2010, two per pack, cross-referenced to 228-24311-01. These sit in the degasser rather than the pump head. A perished diaphragm stops the degasser holding vacuum, and the symptom is dissolved gas reaching the pump: erratic pressure, a baseline that will not settle, and check valves that appear to be failing when they are only passing bubbles. Worth ruling out before you order valve cartridges, since it is the cheaper part and the more common cause of that particular pattern.
- Type
- PTFE diaphragm, 2/pk
- Fits
- Shimadzu LC-10AD, LC-10ADvp, LC-20AD/AB, LC-20ADXR, LC-30ADSF, LC-2010, LC-2010 HT
- Replaces
- Shimadzu 228-32784-91, old 228-24311-01 and 228-31828-00, Sciex 4425151
- Condition
- new
- Price
- Quoted per order, in Canadian dollars
Before you order: if the instrument is misbehaving, tell me the symptom, not the part
number. Lamps and seals get replaced for problems they did not cause. The first look costs
nothing, and if this part is not the fix, I will say so.
How buying works, written for procurement →
