AR 250, 215, 280 Diaphragm Kit - AR43261
Part # AR43261 is the replacement diaphragm kit for the AR250, AR215 and AR280 diaphragm pumps. AR recommends changing the diaphragms every 500 hours or three months, whichever comes first.
Part # AR43261 will also rebuild the older Hypro D250 pump.
The kit includes six replacement Desmopan diaphragms, twelve replacement valve o-rings and replacement accumulator diaphragm.
When rebuilding the pump diaphragms follow all factory torque specifications. Accumulator diaphragm should be set to 20% of pump operating pressure. Replacing diaphragms will require new oil. Replace with 30 weight non-detergent.