LYHY All-Copper Transition Fitting BD-G02-G03

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 supports 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 life of ≥5,000 cycles and a burst pressure of ≥4 times the working pressure, it provides ample safety margin, meeting the demands of long‑term continuous operation of automated equipment and 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 ranging from –20°C to +60°C, while FKM fluororubber seals operate 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 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%, significantly cutting labor hours and shortening equipment delivery cycles.
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 mainstream G/NPT/PT threads. 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 consumption, while the anti‑vibration and anti‑disconnection design accommodates long‑term continuous operation of automated equipment, ensuring more stable performance and fewer breakdowns.
3. Lower overall usage costs: A long plug‑and‑play life reduces the frequency of replacements, easing maintenance workload on production lines; multiple specifications and thread compatibilities minimize selection errors and avoid unnecessary cost losses.
4. Adapt to diverse scenarios and regional requirements: With a full range of specifications and support for various thread standards, it meets the connection needs of different pneumatic systems. Its oxidation‑resistant and corrosion‑proof materials further enable it to handle multiple environmental conditions, aligning with equipment usage standards across 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 and photovoltaic 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: pneumatic circuit connections for assembly lines, robots, testing devices, and transfer equipment; 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 pneumatic 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 conditions, enabling rapid hose connection and disconnection, meeting the diverse needs of pneumatic systems. For food and new energy projects, it also provides appropriate materials and documentation to ensure compliance.

Solutions to Industry Pain Points

1. Addressing 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 cutting labor expenses.
2. Mitigating frequent air leak failures: 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 on each unit, effectively reducing system leaks, lowering energy use, and ensuring stable equipment operation.
3. Tackling 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 of automated equipment.
4. Solving difficulties in adapting to overseas equipment specifications: Different countries have varying thread standards, and conventional fittings often struggle to match these requirements. This product supports multiple international thread standards—G, NPT, PT—and strictly controls thread tolerances, ensuring compatibility with equipment from Europe, Southeast Asia, and other regions, thereby reducing selection mismatches.
5. Alleviating 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‑resistance and corrosion protection, capable of handling a variety of 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 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. 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—G, NPT, PT—and strictly controls thread tolerances according to 6H/6g standards, ensuring compatibility with equipment from Europe, Southeast Asia, and other regions. It also provides materials and documentation to meet the compliance needs of overseas purchasers.
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. This 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 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.