
ARO 637303-GG Nitrile Diaphragm Pump Repair Kit
Nitrile diaphragm and ball repair kit for ARO PD30A pumps with a GG elastomer code, 14 models listed
Nitrile version of the ARO 637303 repair kit, with Nitrile diaphragms and balls for PD30A pumps such as the PD30A-AAP-GGG-C model.
Nitrile sets the 637303-GG apart from its AA, TT and VV siblings. Both the diaphragm and the balls use Nitrile, and the pumps it fits carry GG in their elastomer code.
All eight models shown below are PD30A units with a -C suffix. During a rebuild the diaphragms take the flexing load and the balls act as one-way valves, so swapping both returns the fluid section to working order. If your PD30 ends in AA or TT instead, one of the sibling kits is the correct match.
When to Use This Kit
- A wet or oily mist is coming out of the exhaust port.
- Delivery rate keeps sliding even with a steady air supply.
- Ball surfaces show flat spots or chipped areas.
Fits These ARO Pumps
- ARO PD30A-AAS-FGG-C
- ARO PD30A-ACP-GGG-C
- ARO PD30A-AAP-GGG-C
- ARO PD30A-BCP-GGG-C
- ARO PD30A-ACS-GGG-C
- ARO PD30A-AAS-GGG-C
- ARO PD30A-AAP-HGG-C
- ARO PD30A-BAP-GGG-C
Six other pumps round out the 14-model list. Verify against the pump nameplate.
| Brand | ARO |
|---|---|
| Product Type | Kit |
| Material - Diaphragm | Nitrile |
| Material - Balls | Nitrile |
