Since 1999, Fire Safety Supply has been the go-to for fire suppression products, industrial dry chemical systems, high and low-pressure CO2, vehicles, and clean agents. We serve various types of industries such as restaurants, commercial kitchen, wineries, and more.
Call 1-800-498-3473
Sentry Industrial Dry Chemical Fire Extinguisher Parts
Find replacement parts for ANSUL SENTRY industrial corrosion-resistant dry chemical fire extinguishers, including Models AA10SI, PK10SI, AA20I-1, and PK20I. Search by diagram number, description, model, or part number. For assistance confirming compatibility or availability, call Fire Safety Supply at 1-800-498-3473.
10–20 lb SENTRY Industrial Models
This parts reference covers corrosion-resistant SENTRY dry chemical extinguisher models AA10SI, PK10SI, AA20I-1, and PK20I. Use the diagram number and complete model designation when identifying replacement components.
Match the blue diagram numbers to the corresponding rows in the parts table below. A dash indicates an item that is not individually numbered on the diagram.
SENTRY Industrial Corrosion-Resistant Parts List
| Diagram No. | Description | Part No. |
|---|---|---|
| - | Valve assembly, 10S models | 436596 |
| - | Valve assembly, 20 lb models | 429089 |
| 2 | Tube, pick-up, 20 lb models | 428799 |
| 2 | Tube, pick-up, 10S models | 435953 |
| 3 | O-ring #16 | 76076 |
| 4 | Valve stem with O-ring assembly | 428431 |
| 5 | O-ring #06 | 11873 |
| 6 | Spring | 415565 |
| 7 | O-ring #214 | 428327 |
| 8 | Gauge, pressure, 195 PSI | 56776 |
| 9 | Lever, operating, stainless steel | 428428 |
| 10 | Handle, carrying, stainless steel | 428429 |
| 11 | Rivet, stainless steel | 428430 |
| 12 | Ring pin and chain | 432947 |
| 13 | Ring pin, large loop, stainless steel | 429290 |
| 14 | Seal, visual inspection | 25940 |
| 15 | Hose and nozzle assembly, AA10S-I | 436593 |
| 15 | Hose and nozzle assembly, PK10S-I | 436794 |
| 15 | Hose and nozzle assembly, AA20I-1 | 428737 |
| 15 | Hose and nozzle assembly, PK20I | 428739 |
| 16 | Hose retainer | 427995 |
| 17 | Hanger hook, 10S | 428222 |
| 17 | Hanger hook, 20 | 428224 |
| 18 | Nameplate, operating and maintenance, without UL/ULC | Call for availability |
| 19 | Universal SENTRY adaptor, 2/5/10/20 | 440623 |
| 20 | O-ring #013 | 57744 |
| - | Refill agent, AA20I-1, FORAY modified technology | 434906 |
| - | Refill agent, PK10SI and PK20I, PURPLE-K | 9335 |
| - | Refill agent, AA10SI, FORAY industrial technology | 415788 |
Important: Confirm the complete extinguisher model, agent type, component description, diagram number, and part number before ordering. Some components vary between 10 lb and 20 lb models or between FORAY and PURPLE-K configurations. Availability and supersession status should also be verified.
Covered Models and Agent Types
- AA10SI — 10 lb FORAY industrial model
- PK10SI — 10 lb PURPLE-K industrial model
- AA20I-1 — 20 lb FORAY industrial model
- PK20I — 20 lb PURPLE-K industrial model
- FORAY — Multipurpose dry chemical agent
- PURPLE-K — Potassium bicarbonate dry chemical agent