

The Graco 112421 Santoprene Ball is a flexible and durable check ball designed for dependable sealing and chemical resistance in Graco diaphragm pumps.
The Graco 112421 Santoprene Ball is a reliable and flexible check ball made from Santoprene®, a durable thermoplastic elastomer. It is designed for use in Graco Husky air-operated double diaphragm (AODD) pumps to provide consistent sealing performance and resistance to a variety of mild chemicals.
The 112421 Santoprene Ball is used in the above Graco Husky pump models where Santoprene® material is specified for the check balls. Always verify your pump’s material code to confirm compatibility, as other ball materials (PTFE, acetal, stainless steel) may be used in different configurations.
| Specification | Details |
|---|---|
| Part Number | 112421 |
| Material | Santoprene® (Thermoplastic Elastomer) |
| Function | Check Ball for one-way flow control in the fluid section |
| Used In | Graco Husky Series Air-Operated Double Diaphragm Pumps |
| Feature | Good chemical resistance, flexible sealing, lightweight design |
| Manufacturer | Graco |
The Graco 112421 Ball Santoprene 1590 delivers dependable performance for low to medium-viscosity fluids and mild chemical applications. Its flexible Santoprene® construction ensures an effective seal, minimizing leakage and maintaining optimal flow efficiency. This material is commonly chosen for its balance of chemical resistance and mechanical durability in industrial pumping operations.
Note: Always verify the correct ball material in your Graco pump’s service manual before replacement to ensure proper performance and chemical compatibility.
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