ARO 637140-A4 Kit Assembly, PTFE/Santoprene and Stainless
Kit assembly with PTFE/Santoprene diaphragms and stainless steel balls for five ARO 6660 series pumps.
ARO 637140-A4 kit assembly pairs PTFE/Santoprene diaphragms with stainless steel balls. It is listed for five ARO double diaphragm pumps ending in A4.
ARO 637140-A4 is a kit assembly for the wetted parts of several ARO double diaphragm pumps. Its diaphragms are PTFE/Santoprene and its check balls are stainless steel. All five listed pump models end in A4, the same code the kit carries.
Pump size and a full contents list are not given in our product data, so lean on the technical data sheet and your pump documentation. Before ordering, confirm that your pump calls for PTFE/Santoprene diaphragms and stainless steel balls.
When This Kit Makes Sense
- A diaphragm has split and product escapes with the exhaust air.
- Balls are pitted or out of round and no longer close off the check valves.
- Priming takes noticeably longer than before.
ARO Pumps That Take This Kit
The list includes H, J, 3 and 6 variants of the 66605 body, so read the full code on the nameplate rather than just the first digits.
| Brand | ARO |
|---|---|
| Product Type | Kit |
| Material - Diaphragm | PTFE/Santoprene |
| Material - Balls | Stainless Steel |
