GRACO 24K898 - Polychloroprene Overmolded Diaphragm Kit for Husky 3300 Pumps
The GRACO 24K898 is an overmolded Polychloroprene diaphragm kit for Husky 3300 air-operated diaphragm pumps (Ref. 20). Overmolded diaphragms mount with stainless setscrews and thread locker rather than a shaft bolt. The kit contains two diaphragms — enough to rebuild both fluid chambers.
Specifications
| Specification | Detail |
| Diaphragm material | Polychloroprene (overmolded) |
| Configuration | Overmolded, setscrew-mounted |
| Reference no. | 20 |
| Fits pumps | Husky 3300A, 3300S, 3300P |
| Mounting | Stainless setscrews (16) with thread locker (included) |
Kit Contents
| Ref. | Description | Qty |
| 20 | Diaphragm, Polychloroprene (overmolded) | 2 |
| 16 | Setscrew, stainless steel | 2 |
| 302 | Diaphragm install tool | 1 |
| — | Thread locker packet | 1 |
Installation Notes
- Rounded side faces the diaphragm.
- Apply lithium-based grease to the shaft.
- Secure the stainless setscrews with the supplied thread locker.
- AIR SIDE markings on the diaphragm must face the center housing.
- For maximum diaphragm life, reduce the pump cycle rate.
Compatible Equipment
- Husky 3300 Air-Operated Diaphragm Pumps — 3300A (aluminum), 3300S (stainless steel), 3300P (polypropylene)
Related Parts
Other Husky 3300 diaphragm kits (Ref. 20):
- 24K897 - Buna-N Diaphragm Kit
- 24K903 - FKM Diaphragm Kit
- 24K900 - Geolast Diaphragm Kit
- 24K902 - Santoprene Diaphragm Kit
- 24K901 - TPE Diaphragm Kit
- 24K904 - Polychloroprene Diaphragm Kit (standard)
- 24K899 - PTFE Diaphragm Kit (overmolded)
- 24K905 - PTFE/Santoprene Diaphragm Kit (two-piece)
Diaphragm plate kits (sold separately):
- 24K975 - Air-Side Plate Kit (all 3300 models)
- 24K906 - Fluid-Side Plate Kit (3300A aluminum)
- 24K907 - Fluid-Side Plate Kit (3300P polypropylene)
- 24K908 - Fluid-Side Plate Kit (3300S stainless steel)
Center Section Rebuild Kit: 24K850 - Center Section Rebuild Kit, 3300
Air Valve Rebuild Kit: 24K860 - Air Valve Rebuild Kit, 125 PSI
Reference Manuals
- 406957 (Page 1) - Overmolded Diaphragm Kits, Husky 3300
- 3A0411 (Page 35) - Husky 3300 Air-Operated Diaphragm Pump, Repair/Parts