| Availability: | |
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6261-71-6150
Komatsu
6261-71-6150
Hello, Equipment Owners and Maintenance Chiefs! I am the supplier who specializes in solving problems like "engine bay overheating," "fire suppression nozzle leaks," "burnt seals," and "high-temperature oxidation failure." Today, I’m recommending a "precision ring with a distinctive copper sheen that looks simple but acts as the 'thermal shield' safeguarding your engine's fire suppression sealing"—the Professional Copper Alloy Flame-Extinguishing Nozzle Ring.
Anyone in mining or infrastructure knows that excavators and loaders operate under intense loads, generating extreme heat in the engine compartment where fire safety is paramount. Especially in equipment equipped with automatic fire suppression systems, if a fire breaks out, the nozzle must deploy suppressant within milliseconds. If the sealing ring at the nozzle fails, the consequences are severe: minor leaks cause pressure loss, preventing deployment when needed most; major failures allow hot gases to invade the nozzle lines, burning out seals and paralyzing the entire system. Many cheap rings on the market look copper-colored but are merely ordinary brass or copper-plated steel. Under constant engine heat, they oxidize, turn brittle, and lose elasticity within days. Our Flame-Extinguishing Nozzle Ring is specifically engineered for engine fire suppression systems on heavy-duty equipment like Komatsu excavators and loaders. It doesn’t just seal; it conducts heat, withstands extreme temperatures, resists oxidation, and locks tight. Choose us to install a "high-conductivity sealing shield" at your suppression system—ensuring suppressant sprays accurately and hot gases stay contained, keeping your equipment safe and controllable in high-risk environments like mines and tunnels.
High-Purity Copper Alloy: Rapid Heat Transfer:
The nozzle ring operates in extreme heat with instant temperature spikes; thermal conductivity is critical.
Material: Constructed from high-purity copper alloy. This material is nature’s "heat transfer champion," boasting a thermal conductivity far superior to ordinary steel or alloys. When the nozzle activates, the intense heat from combustion gases and suppressant flow is rapidly absorbed and dissipated by the copper ring, preventing localized overheating that causes seal failure.
Performance: Offers exceptional thermal conduction. In the high-heat engine bay, it effectively balances temperature differences between the nozzle and mounting flange, reducing thermal stress concentration and preventing seal loosening or cracking caused by uneven expansion. It acts like a "micro heat sink," ensuring stability under extreme temperatures.
Superior Ductility & Sealing: Conforms Without Gaps:
Sealing relies on perfect surface contact; ductility is key.
Property: Copper alloy possesses excellent ductility. Unlike brittle metals, it undergoes micro-plastic deformation under bolt preload, flowing like a "liquid" to fill microscopic irregularities on the flange face, achieving a true "surface seal."
Advantage: This adaptability ensures zero-leak sealing between the suppression nozzle and the engine block or fire shield. Whether under static conditions or dynamic thermal cycling, it maintains tight contact, completely blocking escape paths for hot gases or suppressant. For irregular mounting surfaces, copper alloy outperforms rigid metal gaskets significantly.
High-Temp & Oxidation Resistant: Extended Service Life:
Engine bays present heat, oxygen, and corrosive gases; oxidation resistance is fundamental.
Durability: Offers superior high-temperature resistance and oxidation resistance. Under sustained engine heat (exceeding 500°C), it won’t soften, melt, or combust. Additionally, a dense oxide layer forms naturally on the surface, acting as a barrier against further internal oxidation, preventing the ring from becoming brittle or flaking. Compared to standard metal seals, its anti-aging properties ensure long-term physical and chemical stability.
Precision Stamped: Exact Dimensions:
Nozzle spray angles and pressure are highly sensitive to dimensions; accuracy dictates success.
Process: Manufactured via precision stamping in a single operation. All apertures, locating slots, and outer dimensions are tightly controlled with minimal tolerance.
Result: This precision ensures the ring mates perfectly with the nozzle body and mounting seat without affecting spray angle or coverage. Smooth edges and burr-free surfaces prevent damage to delicate internal nozzle components, ensuring reliable suppression system activation.
Parameter | Specification |
|---|---|
Core Material | High-Purity Copper Alloy |
Manufacturing Process | Precision Stamping |
Key Properties | High Thermal Conductivity, High-Temp Resistance, Oxidation Resistance, Excellent Ductility, Tight Sealing |
Compatible Systems | Engine Automatic Fire Suppression Systems, Fire Nozzle Mounting Seats |
Engine Bay Fire Suppression: Installed at the junction of the suppression nozzle and engine block/fire shield to ensure sealing during deployment and prevent hot gas ingress.
Turbocharger Fire Protection: Used for nozzle sealing near turbochargers, enduring extreme radiant heat and exhaust temperatures.
Hydraulic System Fire Safety: Ensures reliable sealing for nozzles protecting flammable areas like hydraulic pumps and lines, preventing oil leak ignition.
Safety Upgrades: Replacing old rings that are oxidized, hardened, leaking, or burnt to elevate overall equipment fire safety ratings.
Exact Match: Just provide your equipment model, and we will supply the corresponding copper alloy flame-extinguishing nozzle ring. No need to measure inner/outer diameters—hassle-free.
Rugged, Leak-Free: We guarantee our rings are high-purity copper alloy with superior thermal conductivity and ductility. After installation, they will not leak, even under extreme heat and vibration. If oxidation failure or leaks occur within days, we replace it.
Value for Money: We don't sell the cheapest copper-plated steel or ordinary brass rings, which look similar but fail under heat, oxidizing and cracking when you need them most. We sell the safest. Do the math: one quality ring protects your equipment and operator—an unbeatable investment.
A Quick Tip for the Mechanics:
Brothers, installing this nozzle ring requires cleanliness and precision.
Clean Thoroughly. Before installation, clean both the nozzle mounting surface and the ring itself until spotlessly clean. Any oil, carbon, or rust will compromise the seal. Wipe with a cloth dampened with alcohol to ensure zero contaminants.
Inspect Surfaces. Check the nozzle mounting face for flatness, scratches, or pitting. If uneven, lightly sand with fine-grit paper to flatten—but avoid altering dimensions.
Install Correctly.
Alignment: Position the ring squarely on the mounting surface, aligning all locating pins or bolt holes. Ensure it isn't twisted.
Lubricate: While copper has self-lubricating properties, apply a dab of high-temp anti-seize to the mating surface to ease future removal.
Tighten Diagonally: Use a torque wrench, tightening in a crisscross pattern in 2–3 progressive stages. Strictly adhere to the manufacturer’s torque specs. Under-tightening leaks; over-tightening can over-compress the ring or stretch bolts.
Test & Inspect. After installation, run the fire suppression system test procedure , or monitor the nozzle area during operation for gas hissing or suppressant seepage. Confirm all is well before returning the machine to service. Work safely and go home in one piece!
FEED BEAM
ROCK DRILL PARTS
AIR COMPRESSOR
PUMP
DTH DRILLING TOOLS
TOP HAMMER
PDC DRILL BITS
EXPLORATION (CORE DRILLING TOOLS)
ROTARY DRILLING TOOLS
RAISE DRILLING TOOLS
GEOTECHNICAL ENGINEERING TECHNOLOGY
HAND TOOLS
Customized Packaging Solutions:
All products are protected with heavy-duty, shock-resistant packaging (including wooden crates, steel frames, and anti-corrosion wrapping) to ensure safe arrival even under long-distance and harsh transport conditions.
Flexible & Global Logistics:
We support multiple shipping methods, including sea freight, air freight, and rail transport, and offer flexible terms such as FOB, CIF, and DAP to meet your delivery schedule and cost requirements.
Fast Lead Times & Order Support:
With a large inventory of standard parts and efficient production scheduling, we can respond quickly to urgent orders while maintaining consistent quality.
After-Sales & Technical Support:
Our dedicated team provides professional technical consultation, installation guidance, and after-sales service to help you maximize equipment performance and minimize downtime.
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| Q:What is your terms of packing? |
| A:Generally, we pack our goods in neutral white boxes and brown cartons. If you have legaly registered patent ,we can pack the goods inyour branded boxes after getting your authorization letters. |
| Q:What is your terms of payment? |
| A: T/T 30% as deposit, and 70% before delivery. We will show you the photos of the products and packages before you pay the balance. |
Q: What is your terms of delivery? |
| A: EXW, FOB, CFR, CIF, DDU, FCA. |
| Q:How about your delivery time? |
| A: Generally. it wlltake 5 to 12 days after receiving your advance payment. The specific delivery time depends on the items and the quantity of your order. |
Q:Can you guarantee that the goods are original? |
| A:Yes, we fully guarantee that the goods are original and you can inspect them carefully when they arrive at your address. |
| Q:Do you test all your goods before delivery? |
| A:Yes, we have 100% test before delivery. |
| Q:How do you make our business long-term and good relationship? |
1. We keep good quality and competitive price to ensure our customers benefit ; 2. We respect every customer as our friend and we sincerely do business and make friends with them, no matter where they come from. |




