LYHY All-Copper Transition Fitting CL02-02

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 the mainstream connection component in automated pneumatic systems. It relies on a mechanical snap‑lock mechanism for quick hose insertion and removal without additional tools, enabling rapid connections 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, throttling valves, 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: up to 10,000 cycles or more
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: Utilizing a stainless steel retaining ring to lock the hose, it features a double‑sealing structure that prevents air leaks and hose disconnection even under vibration, 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. Extra‑long service life and ample safety margin: With a plug‑and‑play life of ≥5,000 cycles and a burst pressure of ≥4 times the working pressure, it can meet the demands of long‑term continuous operation of automated equipment, reducing the frequency of future 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 from –20°C to +60°C, while FKM fluororubber seals handle temperatures from –20°C to +120°C, catering to diverse application scenarios.
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 ensuring consistent pipeline connections. Installation time per joint has been reduced from 60–90 seconds to just 8–15 seconds, boosting overall pipeline assembly efficiency by over 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, thereby reducing downtime and improving maintenance efficiency.
7. Comprehensive specification coverage: Includes straight connectors, elbows, tees, crosses, reducers, throttling valves, and threaded straight fittings, compatible with international G/NPT/PT thread standards. Thread tolerances are controlled according to 6H/6g standards, ensuring strong interchangeability and compatibility with equipment from 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% and helping manufacturers cut labor expenses while accelerating equipment delivery.
2. Reduce energy consumption and failure risks: Excellent sealing performance minimizes system leaks, lowering air‑supply energy usage, while the anti‑vibration and anti‑disconnection design supports the long‑term continuous operation of automated equipment, ensuring more stable performance and fewer breakdowns.
3. Lower overall operating costs: A long plug‑and‑play life reduces the frequency of future replacements, easing maintenance workload; multiple specifications and thread compatibilities minimize selection errors, avoiding unnecessary cost losses.
4. Meet diverse scenario and regional needs: With a full range of specifications and compatibility across multiple thread standards, it satisfies the connection requirements of various pneumatic systems. Its oxidation‑resistant and corrosion‑proof materials make it suitable for many environmental conditions, aligning with equipment usage standards in numerous 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 is widely used in non‑standard automation, packaging machinery, textile and woodworking equipment, new energy installations, assembly lines, and equipment modification and maintenance projects. Specific applications include: pneumatic circuit connections for assembly lines, robots, testing equipment, and transfer devices; hose connections for cylinders, solenoid valves, pneumatic grippers, and blow‑off dust removal circuits; reliable material and documentation‑required pneumatic system connections in food and new energy projects; quick disassembly and reassembly of air lines during production line debugging or equipment maintenance; and pneumatic pipeline connections under special conditions such as humidity or salt‑spray corrosion. It can adapt to continuous operation and vibration, enabling fast hose connections and disconnections, meeting the needs of various scenarios. For food and new energy projects, it also provides appropriate materials and documentation to ensure compliance.

Solutions to Industry Pain Points

1. Address low assembly efficiency of traditional fittings: Traditional 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 cutting labor expenses.
2. Improve frequent air‑leakage issues: Ordinary fittings often have insufficient sealing performance, leading to leaks and increased air‑supply energy consumption. This product employs a dual‑seal design and undergoes 100% air‑tightness testing for each unit, 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, causing downtime. This product’s stainless steel retaining ring design provides excellent anti‑vibration and anti‑disconnection performance, meeting the demands of long‑term continuous operation of automated equipment.
4. Solve difficulties in selecting and adapting overseas equipment: Different countries have varying thread standards, and ordinary fittings often struggle to match them. This product is compatible with G/NPT/PT and other major international thread standards, with strict tolerance controls, ensuring compatibility with equipment from Europe, Southeast Asia, and other regions, thus reducing selection mismatches.
5. Alleviate inadequate corrosion resistance in special conditions: Zinc‑alloy or plastic‑lined fittings easily corrode in humid or salt‑spray environments. This product’s brass with nickel plating or stainless steel materials offer superior oxidation and corrosion resistance, capable of handling many demanding conditions.

Frequently Asked 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, and 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 compatibility ranges?
A: The product operates within a temperature range of –20°C to 80°C. Two sealing ring options are available: NBR seals are compatible with –20°C to +60°C, while FKM fluororubber seals cover –20°C to +120°C. Users can select 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, including G, NPT, and PT, with thread tolerances strictly controlled according to 6H/6g standards. It fits equipment from Europe, Southeast Asia, and other regions, and can provide materials and documentation to meet overseas buyers’ compliance needs.
Q4: How long is the product’s plug‑and‑play life, and are subsequent maintenance costs high?
A: The standard plug‑and‑play life exceeds 10,000 cycles, far surpassing the industry norm of 5,000 cycles. Its exceptionally long service life reduces the frequency of future replacements, lowering customers’ overall usage costs and maintenance workload.
Q5: Under equipment vibration conditions, will this fitting experience hose disconnection or air leaks?
A: No. The product employs 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.