Shaoxing Weimin Fire Fighting Equipment Co., Ltd. is one of the most reliable manufacturers and suppliers of 10lbs, 20lbs, 30lbs powder fire fextinguisher(usa module) in China. If you're going to wholesale bulk CE and ISO approved 10lbs, 20lbs, 30lbs powder fire fextinguisher(usa module), welcome to get pricelist and free sample from our factory. All customized products are with high quality and low price.
Certification & Regulatory Compliance
This product line includes 10 lb, 20 lb, and 30 lb ABC dry chemical fire extinguishers designed for North American fire protection systems.
Certification framework:
- UL Rating range: 1-A:10-B:C to 10-A:160-B:C
- ULC compliance for Canadian installation requirements
- USCG classification for marine and transport applications (Size I–IV depending on model)
These certifications define whether the extinguisher can be accepted in:
- warehouse inspection systems
- commercial building fire audits
- marine safety compliance checks
validates legal entry into project procurement systems
Fire Suppression Capability
The system uses ABC dry chemical powder (ammonium phosphate-based agent) stored under pressurized nitrogen.
Fire class coverage:
- Class A: solid combustible materials (wood, carton, textile)
- Class B: flammable liquids (fuel, oil, solvents)
- Class C: energized electrical equipment
Model-based suppression range:
- 10 lb: up to 4A–80B:C
- 20 lb: up to 10A–120B:C
- 30 lb: up to 10A–160B:C
Suppression mechanism:
- powder particles form insulating layer on combustion surface
- oxygen contact is reduced through physical barrier formation
- flame chain reaction is interrupted at surface interface

Discharge Performance System
The extinguisher converts stored nitrogen pressure into powder kinetic flow through valve-controlled discharge.
Measured parameters:
Flow behavior: conical nozzle generates directional particle jet
Engineering function: pressure energy → powder acceleration → directional flame coverage
Structural Design & Materials
Each extinguisher consists of a pressure vessel system + mechanical valve assembly.
Cylinder body
• carbon steel pressure vessel • formed under stamping and welding process • designed to contain compressed nitrogen at 100–195 psi depending on modelValve system
• aluminum or bronze valve body (model dependent) • manual lever opening mechanism • sealing O-ring controls nitrogen retentionInternal system
• dip tube transfers powder from bottom reservoir • ABC powder stored in sealed dry chamberDischarge system
• hose + conical nozzle • controls particle dispersion angle and flow stabilityEnvironmental Operating Conditions
Operating temperature range: -54°C to 49°C (-65°F to 120°F)
Environmental behavior:
- low temperature: gas contraction reduces discharge energy
- high temperature: internal pressure increases mechanical stress on valve seals
- humidity exposure: accelerates powder agglomeration risk if sealing integrity is reduced
Application environments:
- cold storage warehouses
- outdoor industrial zones
- mechanical rooms
- marine equipment compartments (USCG-rated configurations)
Installation & System Integration
The extinguisher is deployed as a manual emergency response unit.
Installation structure:
- steel wall bracket system (model-specific mounting parts)
- vertical installation to maintain internal powder distribution stability
- installation height typically 0.8–1.2 m for human access zone
System integration:
- no electrical input required
- no pipeline connection required
- no external triggering system
Activation depends entirely on mechanical valve release system
Operating Procedure
This section defines the engineering activation sequence under fire conditions:
Remove safety pin
unlocks mechanical valve locking systemAim nozzle at fire base
directs conical discharge toward combustion surface, not flame tipPress operating lever
opens internal valve chamber and releases nitrogen pressurePowder discharge begins
ABC powder is transferred through dip tube under gas-driven flowSweep motion across fire area
particle layer spreads across fuel surface and blocks oxygen contactEngineering notes:
- no electrical trigger system is involved
- incorrect aiming reduces suppression efficiency
- optimal distance depends on model discharge range
Manufacturing & Quality Control
Production flow:
- cylinder forming and dimensional control
- hydrostatic pressure testing (structural verification stage)
- internal drying process for moisture control
- ABC powder filling under controlled humidity environment
- valve torque calibration to ensure sealing force stability
- nitrogen pressurization to target PSI level
- final inspection: weight, leakage, and batch traceability
Each unit is assigned a batch-level production ID for export documentation tracking
Technical Specifications
| Model | 2.5SA-ABC |
SHISA40-ABC SHISA40-ABC* |
SHISA40-ABC SHISB40-ABC* |
10HI SA80 ABC 10HI SB80 ABC* |
10SHISA-ABC |
20SHISA-ABC 20SHISB-ABC* |
30SHISB-ABC* |
|---|---|---|---|---|---|---|---|
| Description |
2.5 lb ABC Vehicle Mount Bracket |
5 lb ABC Wall Mount Bracket |
5 lb ABC Vehicle Mount Bracket |
10 lb ABC Wall Mount Bracket |
10 lb Short ABC Wall Mount Bracket |
20 lb ABC Wall Mount Bracket |
30 lb ABC Wall Mount Bracket |
| Aluminum Valve Part No. | 13315 (13390) | 10914 (10990) | 25614 (25690) | 11340 (11390) | 11310 (11320) | 12120 (12195) | N/A |
| Bronze Valve Part No. | N/A | 10915 (10995) | 25615 (25695) | 11341 (11349) | N/A | 12121 (12196) | 12905 (12915) |
| Agent Capacity | 2.5 lb (1.13 kg) | 5 lb (2.27 kg) | 5 lb (2.27 kg) | 10 lb (4.54 kg) | 10 lb (4.54 kg) | 20 lb (9.07 kg) | 30 lb (13.6 kg) |
| UL/ULC Rating | 1-A:10-B:C | 3-A:40-B:C | 3-A:40-B:C | 4-A:80-B:C | 4-A:60-B:C | 10-A:120-B:C | 10-A:160-B:C |
| Temperature Range | -65 °F to 120 °F (-54 °C to 49 °C) | ||||||
| Discharge Time | 9 sec | 14 sec | 14 sec | 22 sec | 18 sec | 27 sec | 32 sec |
| Discharge Range | 9–15 ft (2.7–4.6 m) | 12–18 ft (3.7–5.5 m) | 12–18 ft (3.7–5.5 m) | 15–21 ft (4.6–6.4 m) | 15–21 ft (4.6–6.4 m) | 15–21 ft (4.6–6.4 m) | 25–30 ft (7.6–9.1 m) |
| Working Pressure | 100 psi (689 kPa) | 195 psi (1344 kPa) | 195 psi (1344 kPa) | 195 psi (1344 kPa) | 195 psi (1344 kPa) | 195 psi (1344 kPa) | 195 psi (1344 kPa) |
| USCG Approval Classification | Type B:C Size I |
Type A Size II Type B:C Size I |
Type A Size II Type B:C Size I |
Type A Size II Type B:C Size II |
Type A Size II Type B:C Size II |
Type A Size II Type B:C Size II |
Type A Size II Type B:C Size IV |
| Shipping Weight | 5.5 lb (2.5 kg) | 10 lb (4.5 kg) | 10.25 lb (4.7 kg) | 18.25 lb (8.3 kg) | 18.75 lb (8.6 kg) | 33.5 lb (15.2 kg) | 52.25 lb (23.7 kg) |
| Height | 14.75 in (37.5 cm) | 16.375 in (41.6 cm) | 16.375 in (41.6 cm) | 21 in (53.3 cm) | 16.75 in (42.5 cm) | 21.25 in (53.8 cm) | 27.375 in (69.4 cm) |
| Width | 4.875 in (12.4 cm) | 7.25 in (18.4 cm) | 7.25 in (18.4 cm) | 7.75 in (19.7 cm) | 8.25 in (21 cm) | 8.75 in (22.2 cm) | 8.75 in (22.2 cm) |
| Diameter | 3.375 in (8.6 cm) | 4.25 in (10.8 cm) | 4.25 in (10.8 cm) | 5.125 in (13 cm) | 6 in (15.2 cm) | 7.5 in (19.1 cm) | 7.5 in (19.1 cm) |
Procurement & Supply Structure
This product line is designed for multi-capacity project procurement planning:
10 lb: localized fire points
20 lb: standard commercial coverage zones
30 lb: high-risk industrial or warehouse zones
Procurement input factors:
- UL rating requirement
- fire risk classification
- installation environment type
- quantity per project layout
Supply capability:
- OEM labeling support
- mixed model container shipment
- batch-based production tracking
- project-based configuration matching
📩 Inquiry Section
To configure a fire extinguisher supply solution for your project, please provide:
Weimin will provide:
model configuration mapping • certification matching sheet • bracket + installation compatibility list • production-based quotation structure
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