Graco 15B266 Buna-N Ball Seat for Husky 1590
$67.60
In Stock
The Graco 15B266 Buna-N Ball Seat provides a durable sealing surface for the check-valve ball in Husky 1590 pumps, ensuring one-way flow and leak-free operation.
- OEM Buna-N material for reliable chemical compatibility
- Maintains proper sealing and pump efficiency
- Durable for high-cycle industrial fluid handling
- Supports maintenance without replacing the entire valve assembly
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Graco 15B266 Buna‑N Ball Seat for Husky 1590 – Product Details & Compatibility
Compatible Machines
The Graco 15B266 Buna‑N Ball Seat is specifically used in Graco Husky 1590 air‑operated diaphragm pumps and assemblies that require a Buna‑N (nitrile) check‑valve seat.
- Graco Husky 1590 series AODD pumps with Buna‑N check‑valve configurations
- Fluid‑handling systems where Buna-N material is preferred for sealing against oils, solvents, or general fluids
- Service and repair kits where OEM‑specified seats are required for correct pump performance
Product Overview
The Graco 15B266 Buna‑N Ball Seat is a precision-engineered check‑valve seat made from nitrile rubber (Buna‑N) for the Husky 1590 series. It offers reliable sealing, durability under cyclic pump operation, and compatibility with the corresponding ball assembly.
Key Features
- OEM‑specified Buna‑N (nitrile) seat for reliable sealing in Husky 1590 check valves
- Designed for repeated cycling and fluid pressure pulses in diaphragm pumps
- Excellent chemical compatibility with oils, water‑based fluids, and general industrial liquids
- Supports maintenance and repair without needing to replace the entire check‑valve housing
Technical Specifications
| Part Number | 15B266 |
|---|---|
| Description | Buna-N Ball Seat (1590) |
| Function | Seating interface for the check‑valve ball in the Husky 1590 pump |
| Installed In | Graco Husky 1590 AODD pumps (Buna‑N seat configuration) |
Usage Notes
- Always depressurize and isolate fluid lines before disassembling the check‑valve section.
- Install the OEM 15B266 seat to ensure correct sealing geometry and material performance; using incorrect materials can lead to leakage or premature failure.
- Inspect the mating ball and the seat bore for wear, nicks or debris before installation.
- After installation, test the pump under normal operating conditions and monitor for back‑flow, leakage or abnormal pressure behavior.
Frequently Asked Questions
It provides a sealing surface for the check‑valve ball, preventing reverse flow and ensuring proper one‑way operation in the Husky 1590 pump.
While other materials might fit, using the OEM Buna‑N 15B266 seat ensures the correct elastomer compatibility, sealing force and longevity designed for the Husky 1590’s operating conditions.
Replace it if the seat surface shows signs of wear, pitting, or loss of elasticity, or if there is leakage or back‑flow during pump operation.
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