Built for high-performance industrial, marine, and extreme environments, the RELY FX™ P20PK-HF 20 lb high-flow PK fire extinguisher is specifically designed to address flammable liquid and electrical fire risks. Its industry-leading high-flow ratings and agent delivery rate exceeding one pound per second provide exceptional suppression performance for obstacle, pressure-fed, and three-dimensional fire hazards. UL, ULC, USCG, FAA, NFPA, and DOD compliant, this model is engineered for professionals operating in demanding and regulated environments.
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The RELY FX™ P20PK-HF PK dry chemical fire extinguisher is designed to effectively suppress Class B and C fires for both novice and professional operators. It is ideally suited for deployment in demanding environments including emergency response, military applications, and corrosive marine conditions.
Constructed with a non-shat DOT 3AL-1800 aluminum cylinder, the unit has successfully passed rigorous vibration and shock testing generating impact forces up to 200 Gs to ensure structural and operational integrity under severe conditions. This durable design supports reliable deployment where high-output fire suppression is critical.
The P20PK-HF model carries a 10-year limited factory warranty and is manufacturer-tested for operational performance across temperature extremes ranging from -65°F to 160°F, supporting a total functional temperature span of 225°F.
What is a 20 lb Purple K fire extinguisher used for?
A 20 lb Purple K extinguisher is designed for Class B and C fire risks involving flammable liquids and electrical equipment, making it ideal for industrial fuel handling, aviation, marine, and oil & gas environments.
What makes this a high-flow fire extinguisher?
The P20PK-HF delivers agent at more than 1 pound per second, supporting faster fire knockdown and stronger performance in complex or high-intensity fire scenarios.
Why is the discharge range important?
With an effective range of up to 40 feet, this model provides safer stand-off distance and better coverage for obstacle and pressure-fed fire hazards.
Is this suitable for marine and military use?
Yes. The P20PK-HF meets USCG requirements and supports DOD and Navy-related specifications for regulated applications.
Does this require frequent maintenance?
No. The design supports a 10-year DOT retest cycle and eliminates the need for standard 6-year internal examinations.
| Specification | Details |
|---|---|
| Model | P20PK-HF |
| Part Number | 10-30203 |
| Fire Rating | 80-B:C |
| Agent | 20 lb (9.1 kg) PK Dry Chemical |
| Operating Pressure | 240 psi (1655 kPa) |
| Discharge Rate | 1.02 lb/sec (0.46 kg/sec) |
| Discharge Duration | 20.3 seconds |
| Discharge Range | 40 ft (12.2 m) |
| Operating Temperature | -65°F to 120°F* (-54°C to 49°C) |
| Total Charged Weight | 39.9 lb (18.1 kg) |
| Dimensions (H x W x D) | 25.9″ x 8.0″ x 7.0″ |
| UL Listed and Labeled | UL 299 & UL 711 |
| ULC Listed and Labeled | S-504 & S-508 |
| USCG Approval | 46 CFR §162.028 (Type-B:C Size III) |
| DOT Compliance | Meets 49 CFR requirements |
| Military Non-Magnetic | Mil-E-24091C (pending) |
| US Navy Specification | Mil-DTL-24652A (SH) (pending) |
| Advanced Vibration Tested | US Navy Mil-167-1 |
| Advanced Shock Tested | US Navy MIL-901E (pending) |
| Heavy Duty Brackets | Black Steel 81-681 / Red Stainless Steel 81-682** |
