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CA-Fire 2"/2.5" Universal Fire Fighting Couplings

(Standard-Size Connection Accessory for Medium-Small Caliber Fire Equipment)

 

1. Product Name & Positioning

 

Full Name: CA-Fire XQ Series 2"/2.5" Universal Fire Fighting Couplings (Aluminum Alloy/Brass, Threaded Connection, 1.6MPa Working Pressure, CCC Certified)

Abbreviation: CA-Fire XQ 2"/2.5" Universal Fire Couplings

Core Positioning: A standard-size, multi-material connection accessory for medium-small caliber fire systems-distinct from previous STORZ quick-connect couplings (rapid docking),GOST/BS standard couplings (regional compliance) and large-diameter flange connections. It focuses on universal threaded connection for 2"/2.5" (50mm/65mm) common specifications, designed exclusively for connecting medium-small caliber fire hoses,water guns,indoor hydrants and portable pumps. With dual material options,reliable sealing and cost-effective bulk pricing, it fills the gap of "standard-spec,universal 适配" in daily fire equipment connection-ideal for fire departments,property management,small industrial plants and engineering projects needing basic, wide-compatibility connection parts.

 

2. Core Product Advantages

 

1. 2"/2.5" Dual Specifications: Cover Common Medium-Small Caliber Needs

Unlike single-spec couplings or regional standard products, this series targets universal use:

2" (50mm): Matches small-caliber fire hoses,portable water guns (e.g., QZG3.5/7.5 DC jet gun) for precision scenarios.

2.5" (65mm): Adapts to medium-caliber hoses,indoor hydrants (e.g., SN65 series) for daily emergency connection.Dual specs cover 80% of medium-small caliber fire equipment, eliminating the need to stock multiple single-spec accessories.

2. Threaded Connection Design: Stable & Easy for Daily Use

Different from STORZ's 90° quick lock, it adopts universal threaded connection:

Standard national thread (GB/T 7306) ensures tight fitting with most domestic/imported medium-small caliber equipment-no compatibility issues with common fire hoses or guns (unlike regional standard couplings).

Manual threading operation requires no special training, suitable for untrained operators (e.g., property staff) and daily maintenance connection-simpler than STORZ's quick-lock alignment for non-emergency scenarios.

3. Dual Material Options: Balance Cost & Durability

Offers flexible material choices for different budgets and environments:

Aluminum Alloy: Lightweight (≤0.6kg/2", ≤0.8kg/2.5"), cost-effective-ideal for mobile scenarios (e.g., fire truck hose kits,portable pump connections) where weight reduction matters.

Brass: Corrosion-resistant,high-pressure resistant (≥1.6MPa), suitable for long-term fixed use (e.g., indoor hydrant outlets,wet-pipe system connections) or humid environments (e.g., basement fire cabinets). Both materials pass 300-hour salt spray tests.

4. Reinforced Sealing Structure: Leak-Proof Under Working Pressure

Prioritizes sealing reliability for water/foam transmission:

Built-in nitrile rubber gaskets with grooved fixing design-avoids gasket displacement or falling off during connection/disconnection, ensuring zero leakage under 1.6MPa working pressure (meets standard fire system pressure requirements).

Threaded surface with precision machining (tooth pitch consistency ≥98%)-enhances connection tightness, reducing pressure loss during water flow (≤0.03MPa at maximum flow).

5. Cost-Effective Bulk Pricing: Friendly for Large-Quality Procurement

Tailored for engineering and daily stock needs:

Tiered pricing with obvious bulk advantages (starting from $1.5/unit for ≥1000 units)-30% more cost-effective than STORZ quick-connect couplings and regional standard products.

Simple packaging (100 units/carton) reduces transportation and storage costs, suitable for property companies,fire equipment distributors and engineering bulk purchases.

 

3. Detailed Technical Parameters

 

Parameter Category	Specific Details
Brand Name	CA-Fire
Model Number	XQ-2" (50mm), XQ-2.5" (65mm)
Product Type	2"/2.5" Universal Threaded Fire Fighting Couplings (Male-Female Pair)
Main Material	Option 1: Aluminum Alloy (anodized); Option 2: Brass (H59-1)
Connection Type	Universal Threaded (GB/T 7306, compatible with common national/international standards)
Working Pressure	≥1.6MPa
Net Weight	Aluminum Alloy: 2"≈0.6kg, 2.5"≈0.8kg; Brass: 2"≈0.9kg, 2.5"≈1.2kg
Sealing Component	Nitrile Rubber Gasket (oil/foam resistant)
Certification	CCC (China Fire Product Certification)
Lead Time	10 days (1-100 units); 15 days (101-1000 units); Negotiable (>1000 units)

 

4. Applicable Scenarios

 

Daily Fire Equipment Connection: Fire hoses + water guns (e.g., QZG3.5/7.5 DC jet gun,QLD6.0/8III foam sleeve gun),indoor hydrants (e.g., SN65 series) + hoses-basic connection for routine patrol and emergency use.

Portable Fire System Assembly: Portable fire pumps + hoses,temporary fire pipelines + small hydrants-quick setup for mobile rescue or temporary project sites.

Property & Facility Maintenance: Residential/commercial building fire system inspections,hose replacement,hydrant maintenance-universal compatibility reduces accessory stock pressure.

Small-Scale Engineering Projects: Small factories,rural schools,community fire facilities installation-cost-effective bulk procurement meets project basic connection needs.

 

5. Frequently Asked Questions (FAQ)

 

What's the difference between this and the STORZ quick-connect couplings?STORZ couplings focus on 3-second rapid docking (emergency scenarios), while this model uses threaded connection (more stable for daily fixed use). STORZ is for fast rescue, this is for routine connection,maintenance and projects-choose based on "speed need" vs. "daily universality".

How to choose between 2" and 2.5" specifications?

2" (50mm): Match small-caliber hoses/pumps (e.g., portable water guns for precision suppression,small-area flushing).

2.5" (65mm): Pair with medium-caliber hoses/hydrants (e.g., indoor SN65 hydrants,ordinary fire hoses for small-to-medium fires)-the most commonly used spec for daily fire work.

Can it be used with foam mixtures?Yes. The nitrile rubber gasket is resistant to 3%/6% AFFF foam concentrates (compatible with CA-Fire's foam systems). It won't degrade or leak when transmitting foam-water mixtures, suitable for small-scale Class B fire suppression connections.

Is it compatible with non-CA-Fire equipment?Yes. It follows universal 2"/2.5" threaded standards, compatible with most domestic and imported medium-small caliber fire hoses,guns and hydrants-no need for brand-specific adapters.

 

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