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Pressure-Driven Foam Proportioners Bladder Tank

 

 

1. Product Name & Positioning

 

Full Name: CA-Fire PY4/PY8 Series CCC & ISO Certified Pressure-Driven Foam Proportioners (Carbon Steel Bladder Tank + Brass Valves, Mobile Cart-Mounted)

Abbreviation: CA-Fire PY4/PY8 Bladder-Type Mobile Foam Proportioner

Core Positioning: A fully integrated, pressure-powered foam mixing & supply unit-distinct from single-function foam inductors (only mix foam and water) or fixed foam systems (immovable). It combines a sealed bladder tank (for foam concentrate storage), pressure proportioning valve (for precise mixing), and heavy-duty mobile cart into one ready-to-use system. Designed to eliminate pipeline pre-installation needs, it delivers stable 3%/6% foam ratios for Class A (solid) and Class B (liquid) fires, making it ideal for emergency rescue, temporary construction sites, and small-scale oil/chemical storage areas where rapid deployment is critical.

 

2. Core Product Advantages

1. Bladder-Isolated Pressure Proportioning (3%/6% Fixed Ratios, No Contamination)

Unlike Venturi-based foam inductors (prone to ratio fluctuations), this system uses a bladder tank + pressure differential principle for ultra-stable mixing:

The foam concentrate is stored in a food-grade butyl rubber bladder (isolated from water), avoiding direct contact with the carbon steel tank-prevents concentrate degradation or tank corrosion (a common issue with non-bladder tanks).

Pre-calibrated to 3% (for AFFF, targeting gasoline/diesel fires) or 6% (for AR-AFFF, targeting alcohol-based liquid fires) fixed ratios. No on-site adjustment is needed: connect to a water source (0.6-1MPa pressure), and the system automatically pushes concentrate into the water flow via pressure difference-ensuring consistent foam quality even in high-stress emergency scenarios.

2. High-Mobility Cart Design (5-Minute Rapid Deployment)

Built for on-site agility, solving the "slow setup" pain point of traditional fixed foam systems:

Equipped with heavy-duty rubber wheels (load capacity ≥500kg) and a foldable push/pull handle-1-2 personnel can move it smoothly across concrete floors (factory workshops), asphalt (parking lots), or slightly gravelly ground (construction sites). The wheels have built-in brakes to fix the cart in place during operation.

All components (bladder tank, proportioning valve, water inlet/outlet, pressure gauge) are pre-assembled on the cart. Unpack, connect the fire hose to the inlet/outlet, and start using-no on-site assembly required (vs. 30+ minutes for separate inductor + tank combinations).

3. Heavy-Duty Material Upgrade (Corrosion-Resistant for Long-Term Use)

Bladder tank body: Made of 2.5mm thick carbon steel, with an inner food-grade epoxy coating (compliant with GB 4806.1) to resist foam concentrate's surfactant erosion. The tank undergoes a 1.2MPa air-tightness test to ensure zero leakage-suitable for long-term storage of foam concentrate (up to 2 years without degradation).

Key components: Proportioning valves, quick-connect fittings, and pressure gauges are made of H59-1 brass (tensile strength ≥245MPa). Brass resists rust from foam residues and humid environments, avoiding valve clogging or connection leaks (a risk with iron components used in low-cost foam systems).

4. Ultra-Low Customization Threshold 

Unlike most fire equipment (customization MOQ ≥100 units), this proportioner breaks the threshold with 6 units customization-covering scenarios that small clients need:

Branding customization: Laser engraving of client logos on the cart handle (instead of simple silk-screen printing, more wear-resistant).

Functional customization: Adjustment of cart color (e.g., red for fire rescue teams, yellow for chemical plants) to align with on-site safety management; addition of reflective warning strips for low-light operation.

Interface customization: Modify water inlet/outlet to match regional standards (e.g., Storz for Europe, NPT for North America) without extra adapters.

5. Cross-Class Fire Adaptability (Class A & B with Targeted Foam Action)

It's not just for liquid fires-this system is engineered to handle two fire types with targeted mechanisms:

Class B (liquid fires, e.g., oil, gasoline): 3%/6% high-concentration foam forms a dense film on the liquid surface, cutting off oxygen and preventing re-ignition.

Class A (solid fires, e.g., wood, textiles): The pressure system can slightly reduce foam concentration (via subtle pressure adjustment) to form a water-rich foam-penetrating and wetting solid materials to stop smoldering re-ignition (a capability most single-purpose Class B foam systems lack).

 

3. Detailed Technical Parameters

Parameter Category	Specific Details
Brand Name	CA-Fire
Model Number	PY4 (100L bladder tank), PY8 (200L bladder tank)
Product Type	Pressure-Driven Foam Proportioner (bladder tank + mobile cart integrated)
Main Material	Tank Body: 2.5mm carbon steel (inner food-grade epoxy coating); Bladder: Food-grade butyl rubber; Valves/Fittings: H59-1 brass
Applicable Fire Classes	Class A (solid: wood, textiles), Class B (liquid: gasoline, ethanol)
Foam Mixing Ratio	3% (for AFFF), 6% (for AR-AFFF) – pre-calibrated, pressure-driven
Working Pressure Range	0.6-1MPa (compatible with most mobile fire pumps)
Bladder Tank Capacity	PY4: 100L; PY8: 200L (custom 50L-500L available, MOQ 10 units)
Mobility Configuration	Heavy-duty rubber wheels (with brakes) + foldable push/pull handle; Net Weight (empty): PY4≈45kg, PY8≈60kg
Certifications	CCC, ISO, CE (meets EU fire safety standards for export to Colombia/Malaysia)
Lead Time	20 days (1-10 units); 60 days (11-100 units); Negotiable (>100 units)
Customization MOQ	6 units (logo engraving, color adjustment); 10 units (tank capacity customization)

 

4. Applicable Scenarios

Highway Emergency Rescue: For oil tank truck leaks or road-side chemical spills-5-minute deployment allows first responders to contain fires before they spread to nearby vehicles.

Small-Scale Chemical Storage: Small workshops storing alcohol-based solvents or paint thinners-no need to 预埋 pipelines; the cart can be parked near storage racks for instant use.

Temporary Construction Sites: Building under construction or infrastructure projects-adapts to changing work areas (e.g., from wood framing zones to paint storage zones) without reconfiguring fixed systems.

Local Gasoline Stations: Single-tank or dual-tank gas stations-mounted near the tank area; the 3% ratio foam quickly suppresses gasoline fires, and the mobile design allows moving to different tank sides.

 

5. Frequently Asked Questions (FAQ)

What's the advantage of the bladder tank over a regular carbon steel tank?The butyl rubber bladder isolates foam concentrate from the steel tank: ① Prevents concentrate from reacting with steel (avoiding degradation and foam effectiveness loss); ② Eliminates tank corrosion from concentrate residues-extending the tank's service life to 8-10 years (vs. 3-5 years for non-bladder tanks).

Can the system work with non-standard fire hoses?Yes. We offer custom inlet/outlet interfaces (e.g., Gost for CIS countries, BS336 for the UK) starting from 6 units-no need for adapters. Just confirm your local hose standard when ordering, and we'll match it directly.

How often does the foam concentrate need to be replaced?It depends on the concentrate type: AFFF has a 2-3 year shelf life, AR-AFFF has a 3-4 year shelf life. The bladder tank's food-grade coating prevents concentrate,so you only need to replace it based on the concentrate's expiration date (no extra replacement due to tank-related issues).

Is the cart suitable for uneven ground (e.g., gravel construction sites)?Yes. The rubber wheels have a 50mm thick tread with anti-slip patterns, which can roll smoothly on slightly uneven gravel or dirt. For extremely rough terrain, we offer optional pneumatic wheels (MOQ 10 units) for better shock absorption.

 

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