LYHY All-Copper Transition Fitting BD-02-03

Product Overview

The all-copper transition fitting is a quick‑connect pneumatic pipeline connector, specially designed for pneumatic systems to rapidly join PU/PE/PA pneumatic hoses with valve bodies, cylinders, and air supply lines. Made entirely from brass and machined as a single piece, it features a high‑strength nickel plating on the surface. Unlike zinc alloy or plastic‑lined fittings, its all‑metal construction offers superior strength and rigidity, making it a mainstream connection component in automated pneumatic systems. It relies on mechanical snap‑in technology for quick hose insertion and removal without additional tools, enabling rapid connection of air supply lines. Widely used in complete equipment assembly, production line upgrades, and pneumatic control systems, it covers a full range of specifications including straight connectors, elbows, tees, crosses, reducers, flow regulators, and threaded straight fittings. It accommodates various international thread standards such as G, NPT, and PT, meeting the connection needs of different pneumatic systems.

Core Performance Parameters

1. Rated working pressure: 0–1.5 MPa
2. Burst pressure: ≥4 times the working pressure
3. Standard plug‑and‑play life: over 10,000 cycles
4. Operating temperature: –20°C to 80°C
5. Seal options: two types of sealing rings available—NBR and FKM
6. Compatible threads: G, NPT, PT, and other major international thread standards
7. Testing standard: 100% air‑tightness pressure test on finished products

Key Product Advantages

1. Dual‑seal anti‑disconnection design: Utilizes a stainless steel retaining ring to lock the hose, featuring a double‑sealing structure that effectively prevents air leaks and hose disconnection even under vibration conditions, ensuring stable operation of the pneumatic system.
2. Strict factory quality control: Each fitting undergoes a 100% air‑tightness pressure test, rigorously controlling leakage at the source to ensure compliance with sealing performance standards and reduce the risk of pneumatic system failures.
3. Extraordinary service life and safety margin: With a plug‑and‑play lifespan of ≥5,000 cycles and a burst pressure of ≥4 times the working pressure, it provides ample safety margins, meeting the demands of long‑term continuous operation in automated equipment and reducing the frequency of replacements.
4. Oxidation resistance and corrosion protection: The brass body with nickel plating effectively resists oxidation and rust, suitable for humid and corrosive environments. Additionally, it offers both NBR and FKM sealing options; depending on operating conditions, the sealing rings remain flexible and do not harden or fail. NBR seals are compatible with temperatures ranging from –20°C to +60°C, while FKM fluororubber seals operate from –20°C to +120°C, satisfying diverse application requirements.
5. Tool‑free, efficient installation: Quick plug‑and‑play installation requires no tools—insert the hose and it locks automatically, minimizing human error during assembly and improving consistency in pneumatic system installation. Installation time per joint has been reduced from 60–90 seconds to just 8–15 seconds, boosting overall pipeline assembly efficiency by more than 70% and significantly cutting labor costs and equipment delivery times.
6. Convenient maintenance and debugging: Pressing the fitting releases the hose, making disassembly and reassembly easy during production line debugging or equipment maintenance, effectively reducing downtime and enhancing maintenance efficiency.
7. Comprehensive specification coverage: Includes straight connectors, elbows, tees, crosses, reducers, flow regulators, and threaded straight fittings, compatible with international G/NPT/PT thread standards. Thread tolerances are strictly controlled at 6H/6g, ensuring strong interchangeability and compatibility with equipment across Europe, Southeast Asia, and other regions, thus reducing selection mismatches.
8. Multiple material options: In addition to copper with nickel plating, stainless steel versions are also available, capable of handling harsher conditions such as humidity and salt‑spray corrosion.

Core Product Value

1. Enhance assembly efficiency and reduce labor costs: The tool‑free quick‑connect design dramatically shortens installation time, increasing pipeline assembly efficiency by over 70%, helping manufacturers cut labor expenses and accelerate equipment delivery.
2. Reduce energy consumption and failure risks: Excellent sealing performance minimizes system leaks and lowers air supply energy usage, while the anti‑vibration, anti‑disconnection design supports the long‑term continuous operation of automated equipment, ensuring stable performance and fewer breakdowns.
3. Lower overall operating costs: A longer plug‑and‑play lifespan reduces the frequency of replacements and lightens maintenance workloads; multiple specifications and thread compatibilities minimize selection errors and avoid unnecessary cost losses.
4. Meet diverse scenario and regional demands: With a full range of specifications and compatibility with various thread standards, it satisfies the connection needs of different pneumatic systems. Its oxidation‑resistant, corrosion‑proof materials further enable it to handle multiple environmental conditions, aligning with equipment usage standards in many overseas markets.

Target Customer Groups

Non‑standard automation equipment manufacturers, packaging machinery producers, textile machinery makers, printing equipment suppliers, woodworking machinery companies, food processing equipment manufacturers, lithium‑ion/pv equipment firms, construction machinery component suppliers, pneumatic hardware distributors, production line upgrade and old equipment refurbishment service providers, pneumatic circuit renovation contractors, and overseas buyers of pneumatic components.

Application Scenarios

This product finds extensive use in non‑standard automation, packaging machinery, textile and woodworking equipment, new energy installations, assembly lines, and equipment modification and maintenance projects. Specific applications include: connecting pneumatic circuits in assembly lines, testing machines, robotic arms, and transplanting devices; linking hoses for cylinders, solenoid valves, pneumatic grippers, and blow‑off dust removal systems; providing reliable materials and documentation for pneumatic systems in food and new energy projects; enabling quick disassembly and reassembly of air lines during production line debugging or equipment maintenance; and connecting pneumatic pipelines in special conditions such as humidity or salt‑spray corrosion. It can withstand continuous operation and vibration, allowing rapid hose connections and disconnections, meeting the diverse needs of pneumatic systems. For food and new energy projects, it also offers appropriate materials and documentation to ensure compliance.

Solutions to Industry Pain Points

1. Address low assembly efficiency of traditional fittings: Conventional pneumatic fittings require tools, lengthy installation times per joint, and high labor costs. This product’s tool‑free quick‑connect design reduces installation time to 8–15 seconds, greatly improving assembly efficiency and lowering labor expenses.
2. Improve frequent air leak issues: Ordinary fittings often suffer from inadequate sealing, leading to air leaks and increased energy consumption. This product employs a dual‑seal design and undergoes 100% air‑tightness testing, effectively reducing system leaks, lowering energy use, and ensuring stable equipment operation.
3. Tackle hose disconnection caused by equipment vibration: Some fittings tend to come loose under vibrating conditions, resulting in downtime and failures. This product’s stainless steel retaining ring design provides excellent anti‑vibration and anti‑disconnection performance, meeting the demands of long‑term continuous operation in automated equipment.
4. Solve difficulties in selecting and adapting overseas equipment: Different countries have varying thread standards, and ordinary fittings often struggle to adapt. This product supports multiple international thread standards—G, NPT, PT—and maintains strict thread tolerance controls, ensuring compatibility with equipment across Europe and Southeast Asia while minimizing selection mismatches.
5. Alleviate insufficient corrosion resistance in special conditions: Zinc alloy and plastic‑lined fittings are prone to rust and damage in humid or salt‑spray environments. This product’s brass with nickel plating or stainless steel materials offer outstanding oxidation and corrosion resistance, capable of handling a wide range of harsh conditions.

Common Questions FAQ

Q1: Which types of pneumatic hoses can this all‑copper transition fitting connect?
A: This product can quickly connect PU/PE/PA pneumatic hoses, suitable for rapid connections between hoses themselves, or between hoses and valve bodies/cylinders, meeting the needs of various pneumatic hose applications.
Q2: What is the product’s operating temperature range? Do different sealing rings have different temperature tolerances?
A: The product operates within a temperature range of –20°C to 80°C. Two sealing ring options are available: NBR seals are suitable for –20°C to +60°C, while FKM fluororubber seals cover –20°C to +120°C. Customers can choose the appropriate seal based on specific operating conditions.
Q3: Does the product support overseas export requirements?
A: The product is compatible with multiple international thread standards—G, NPT, PT—and maintains strict thread tolerance controls (6H/6g). It fits equipment across Europe and Southeast Asia, while also providing materials and documentation to meet the compliance needs of overseas buyers.
Q4: How long is the product’s plug‑and‑play lifespan, and are subsequent maintenance costs high?
A: The standard plug‑and‑play lifespan exceeds 10,000 cycles, far surpassing the industry norm of 5,000 cycles. Such an extended service life reduces the frequency of replacements, lowering overall customer costs and maintenance workload.
Q5: Under equipment vibration conditions, will this fitting experience hose disconnection or air leaks?
A: No. The product features a dual‑seal quick‑connect structure combined with a stainless steel retaining ring, offering excellent anti‑vibration and anti‑disconnection performance. Even under continuous vibration, it effectively prevents air leaks and hose disconnection, ensuring stable operation of the pneumatic system.