T: +86-19511798062
E: sales@honestflex.com
E: sales@honestflex.com
Licang District, Qingdao, Shandong, China
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The Honestflex Twin Welding Hose is a dual-pipe parallel rubber hose designed specifically for welding and cutting equipment, providing efficient and safe transport of oxygen, acetylene, and other fuel gases. Precision-manufactured using a mandrel extrusion process, this hose ensures uniform wall thickness and accurate dimensions. Its inner rubber layer is made of a blend of black SBR (styrene-butadiene rubber) and NR (natural rubber), offering excellent airtightness and media resistance. The reinforcing layer consists of multiple layers of high-tensile-strength polyester fiber yarn spirally wound, giving the hose superior pressure resistance and structural stability. The outer rubber layer is covered with a smooth synthetic rubber with excellent abrasion resistance and weather resistance, and is available in a variety of colors including blue, red, and green for easy on-site gas identification. This hose operates at a constant pressure of 20 Bar / 300 psi and is suitable for temperatures ranging from -32°C to +80°C, making it an ideal flexible connection for welding, cutting, and metalworking applications.
Twin Welding Hose, with its dual-pipe parallel design and excellent media compatibility, is widely used in gas delivery operations across various industrial manufacturing and engineering construction fields. Specific applications include:
Metal Welding and Cutting: Primarily used for the simultaneous delivery of oxygen and acetylene, working in conjunction with welding or cutting torches to complete welding and flame cutting operations on steel plates and pipes.
Automotive Manufacturing and Repair: Provides a stable gas source for gas welding equipment in processes such as automobile body repair, parts welding, and exhaust pipe cutting.
Shipbuilding and Repair: Suitable for shipyard section welding, outfitting operations, and hull cutting, meeting the gas delivery needs of open-air operations and complex environments.
Steel Structure Construction: Used for welding and cutting operations on steel structures such as bridges, factories, and large stadiums, adapting to friction and dragging conditions on construction sites.
Nuclear Power Plant and Chemical Facility Construction: Used for gas delivery during pipeline welding and equipment maintenance in fields with stringent safety requirements, such as nuclear power and chemical industries.
Railway and Rail Transit: Used in rail welding, vehicle repair, and track maintenance to ensure continuous and reliable gas delivery.
Tunnel and Underground Engineering: Used in tunnel construction for rebar welding and metal component cutting, adaptable to wet and confined working environments.
Machinery and Manufacturing: Widely used in various machinery manufacturing workshops, providing flexible gas supply connections for welding stations.
Choosing Twin Welding Hose brings a safe, efficient, and durable experience to your welding operations. Its core advantages include:
Parallel Connection for Convenient Operation: Oxygen and gas pipelines are connected side-by-side, avoiding tangling and knots, facilitating on-site setup and relocation, and improving work efficiency.
Color Differentiation for Safety: The outer layer offers multiple color options such as blue, red, and green, allowing for differentiation of different gas pipelines according to international standards, effectively preventing misconnection and ensuring operational safety.
Excellent Pressure Resistance and Bending Resistance: The reinforcing layer uses high-strength polyester yarn spirally wound, ensuring the hose remains stable at 300 psi working pressure and is not easily deformed or fatigued during repeated bending.
Wear-resistant and weather-resistant outer rubber layer: The outer layer is coated with highly wear-resistant synthetic rubber, resisting friction, dragging, and gravel abrasion on the construction site; it also possesses excellent ozone, UV, and aging resistance, making it suitable for all-weather outdoor operations.
Flame-retardant and heat-resistant properties: The rubber formula undergoes special treatment, exhibiting excellent flame retardancy and heat resistance, remaining stable even near welding sparks or high-temperature areas, reducing the risk of fire.
Lightweight design, reduced fatigue: The flexible and lightweight tube body reduces operator fatigue during prolonged torch handling, making it particularly suitable for high-altitude operations and precision welding in confined spaces.
Wide media compatibility: In addition to oxygen and acetylene, it can also be used to transport various industrial gases such as carbon dioxide, nitrogen, propane, and liquefied natural gas, offering multiple uses and reducing procurement costs.
Mandrel extrusion process, stable quality: Utilizing mandrel extrusion technology, the inner wall is smooth and flat, reducing gas flow resistance; at the same time, the uniform wall thickness ensures consistent overall pressure resistance.
Customized service support: We can provide OEM branding, customized packaging, and special color adhesives according to customer needs to meet the differentiated needs of different markets and channels.
| Parameter | Value / Options | Notes |
|---|---|---|
| Tube Material | EPDM (heat-resistant rubber) | Compatible with fuel gases |
| Reinforcement | Spiral polyester yarn | Improves mechanical strength |
| Cover | Synthetic rubber, abrasion-resistant | Durable outer jacket |
| Operating Temp | –32 °C to +80 °C | Standard range |
| Gas Types Supported | Oxygen, Acetylene, CO₂, Nitrogen, Propane, MAPP | Specify on order |
| Hose Length Options | 25 ft, 50 ft, custom cut | Usually coiled assemblies |
| Pressure Ratings | Working / Burst (per size) | See size table on page |
Red (acetylene) | Blue /Green (oxygen) | |||||||||
Inside Diameter | Outside Diameter | Working Pressure | Burst Pressure | Inside Diameter | Outside Diameter | Working Pressure | Burst Pressure | |||
inch | mm | mm | bar | bar | inch | mm | mm | bar | bar | |
1/4 | 6 | 13 | 20 | 60 | 1/4 | 6 | 13 | 20 | 60 | |
5/16 | 8 | 15 | 20 | 60 | 5/16 | 8 | 15 | 20 | 60 | |
3/8 | 10 | 18 | 20 | 60 | 3/8 | 10 | 18 | 20 | 60 | |
| Feature | Twin Welding Hose | Single Braided Hose |
|---|---|---|
| Gas Lines | Dual integrated lines | Requires separate hoses |
| Flexibility | Higher flexibility, easier to coil | Less flexible for dual routing |
| Installation | Simpler routing & managed layout | More complex routing |
| Safety | Color-coded dual setup | Risk of cross-connection |
| Cost | Slightly higher | Lower for single hose |
Q1: What gases can this Twin Welding Hose convey?
This hose is specifically designed for the conveyance of fuel gases (such as acetylene, propane, butane, and natural gas) and oxygen in oxy-fuel welding, cutting, and heating applications. It is not intended for water or general industrial liquids.
Q2: What is the working temperature range of the hose?
The hose operates effectively within a temperature range of approximately -32°C to +80°C , ensuring flexibility and safety in both cold outdoor environments and warm workshop conditions.
Q3: How can I distinguish between the fuel and oxygen lines?
The twin lines are permanently color-coded according to international safety standards—typically Red for the fuel gas line and Blue or Green for the oxygen line. This allows for quick identification and helps prevent dangerous cross-connections.
Q4: What are the available sizes and working pressures?
The hose is commonly available in internal diameters of 6 mm, 8 mm, and 10 mm. Working pressures typically range from 20 to 40 bar, depending on the size and construction. Custom specifications are available upon request.
Q5: What types of connections or fittings can be used?
The hose is compatible with standard welding hose connectors, clamps, and threaded fittings. It can be supplied with plain ends for fitting on-site or pre-fitted with brass connections and ferrules according to customer requirements.
Q6: What standards does this Twin Welding Hose meet?
This hose is manufactured to meet international quality and safety standards, such as ISO 3821 (gas welding equipment) or equivalent specifications, ensuring reliable performance in industrial and professional applications.
Q7: Is the hose resistant to oil and external damage?
Yes, the outer cover is formulated to resist oil, grease, and mechanical abrasion commonly found in workshops and construction sites. It also offers resistance to flame and weathering, extending the hose's service life.
Q8: Can this hose be used for both welding and cutting applications?
Absolutely. The twin welding hose is versatile and suitable for all standard oxy-fuel processes, including welding, cutting, brazing, and heating, providing a steady and reliable gas supply.
Q9: What are the standard hose lengths available?
The hose is typically supplied in coils of 20 meters, 30 meters, or 50 meters. Custom cut lengths, including paired and assembled sets with regulators and torches, can be manufactured to meet specific project requirements.
Q10: What are the advantages of using a twin welding hose over two separate hoses?
The twin-line design prevents the hoses from tangling, reduces clutter in the workspace, and ensures that the two lines remain paired for easy handling and identification. This enhances both safety and efficiency for the operator.
Professional Hose Maker — years of experience in welding & industrial hoses
Quality Assurance — 100% inspection, high cycle testing
Custom Solutions — hose length, fittings, pressure ratings customizable
Reliable Materials — EPDM, strong reinforcement, durable cover
Global Export Service — secure packaging, customs documentation, logistic support
The Honestflex Twin Welding Hose is a dual-pipe parallel rubber hose designed specifically for welding and cutting equipment, providing efficient and safe transport of oxygen, acetylene, and other fuel gases. Precision-manufactured using a mandrel extrusion process, this hose ensures uniform wall thickness and accurate dimensions. Its inner rubber layer is made of a blend of black SBR (styrene-butadiene rubber) and NR (natural rubber), offering excellent airtightness and media resistance. The reinforcing layer consists of multiple layers of high-tensile-strength polyester fiber yarn spirally wound, giving the hose superior pressure resistance and structural stability. The outer rubber layer is covered with a smooth synthetic rubber with excellent abrasion resistance and weather resistance, and is available in a variety of colors including blue, red, and green for easy on-site gas identification. This hose operates at a constant pressure of 20 Bar / 300 psi and is suitable for temperatures ranging from -32°C to +80°C, making it an ideal flexible connection for welding, cutting, and metalworking applications.
Twin Welding Hose, with its dual-pipe parallel design and excellent media compatibility, is widely used in gas delivery operations across various industrial manufacturing and engineering construction fields. Specific applications include:
Metal Welding and Cutting: Primarily used for the simultaneous delivery of oxygen and acetylene, working in conjunction with welding or cutting torches to complete welding and flame cutting operations on steel plates and pipes.
Automotive Manufacturing and Repair: Provides a stable gas source for gas welding equipment in processes such as automobile body repair, parts welding, and exhaust pipe cutting.
Shipbuilding and Repair: Suitable for shipyard section welding, outfitting operations, and hull cutting, meeting the gas delivery needs of open-air operations and complex environments.
Steel Structure Construction: Used for welding and cutting operations on steel structures such as bridges, factories, and large stadiums, adapting to friction and dragging conditions on construction sites.
Nuclear Power Plant and Chemical Facility Construction: Used for gas delivery during pipeline welding and equipment maintenance in fields with stringent safety requirements, such as nuclear power and chemical industries.
Railway and Rail Transit: Used in rail welding, vehicle repair, and track maintenance to ensure continuous and reliable gas delivery.
Tunnel and Underground Engineering: Used in tunnel construction for rebar welding and metal component cutting, adaptable to wet and confined working environments.
Machinery and Manufacturing: Widely used in various machinery manufacturing workshops, providing flexible gas supply connections for welding stations.
Choosing Twin Welding Hose brings a safe, efficient, and durable experience to your welding operations. Its core advantages include:
Parallel Connection for Convenient Operation: Oxygen and gas pipelines are connected side-by-side, avoiding tangling and knots, facilitating on-site setup and relocation, and improving work efficiency.
Color Differentiation for Safety: The outer layer offers multiple color options such as blue, red, and green, allowing for differentiation of different gas pipelines according to international standards, effectively preventing misconnection and ensuring operational safety.
Excellent Pressure Resistance and Bending Resistance: The reinforcing layer uses high-strength polyester yarn spirally wound, ensuring the hose remains stable at 300 psi working pressure and is not easily deformed or fatigued during repeated bending.
Wear-resistant and weather-resistant outer rubber layer: The outer layer is coated with highly wear-resistant synthetic rubber, resisting friction, dragging, and gravel abrasion on the construction site; it also possesses excellent ozone, UV, and aging resistance, making it suitable for all-weather outdoor operations.
Flame-retardant and heat-resistant properties: The rubber formula undergoes special treatment, exhibiting excellent flame retardancy and heat resistance, remaining stable even near welding sparks or high-temperature areas, reducing the risk of fire.
Lightweight design, reduced fatigue: The flexible and lightweight tube body reduces operator fatigue during prolonged torch handling, making it particularly suitable for high-altitude operations and precision welding in confined spaces.
Wide media compatibility: In addition to oxygen and acetylene, it can also be used to transport various industrial gases such as carbon dioxide, nitrogen, propane, and liquefied natural gas, offering multiple uses and reducing procurement costs.
Mandrel extrusion process, stable quality: Utilizing mandrel extrusion technology, the inner wall is smooth and flat, reducing gas flow resistance; at the same time, the uniform wall thickness ensures consistent overall pressure resistance.
Customized service support: We can provide OEM branding, customized packaging, and special color adhesives according to customer needs to meet the differentiated needs of different markets and channels.
| Parameter | Value / Options | Notes |
|---|---|---|
| Tube Material | EPDM (heat-resistant rubber) | Compatible with fuel gases |
| Reinforcement | Spiral polyester yarn | Improves mechanical strength |
| Cover | Synthetic rubber, abrasion-resistant | Durable outer jacket |
| Operating Temp | –32 °C to +80 °C | Standard range |
| Gas Types Supported | Oxygen, Acetylene, CO₂, Nitrogen, Propane, MAPP | Specify on order |
| Hose Length Options | 25 ft, 50 ft, custom cut | Usually coiled assemblies |
| Pressure Ratings | Working / Burst (per size) | See size table on page |
Red (acetylene) | Blue /Green (oxygen) | |||||||||
Inside Diameter | Outside Diameter | Working Pressure | Burst Pressure | Inside Diameter | Outside Diameter | Working Pressure | Burst Pressure | |||
inch | mm | mm | bar | bar | inch | mm | mm | bar | bar | |
1/4 | 6 | 13 | 20 | 60 | 1/4 | 6 | 13 | 20 | 60 | |
5/16 | 8 | 15 | 20 | 60 | 5/16 | 8 | 15 | 20 | 60 | |
3/8 | 10 | 18 | 20 | 60 | 3/8 | 10 | 18 | 20 | 60 | |
| Feature | Twin Welding Hose | Single Braided Hose |
|---|---|---|
| Gas Lines | Dual integrated lines | Requires separate hoses |
| Flexibility | Higher flexibility, easier to coil | Less flexible for dual routing |
| Installation | Simpler routing & managed layout | More complex routing |
| Safety | Color-coded dual setup | Risk of cross-connection |
| Cost | Slightly higher | Lower for single hose |
Q1: What gases can this Twin Welding Hose convey?
This hose is specifically designed for the conveyance of fuel gases (such as acetylene, propane, butane, and natural gas) and oxygen in oxy-fuel welding, cutting, and heating applications. It is not intended for water or general industrial liquids.
Q2: What is the working temperature range of the hose?
The hose operates effectively within a temperature range of approximately -32°C to +80°C , ensuring flexibility and safety in both cold outdoor environments and warm workshop conditions.
Q3: How can I distinguish between the fuel and oxygen lines?
The twin lines are permanently color-coded according to international safety standards—typically Red for the fuel gas line and Blue or Green for the oxygen line. This allows for quick identification and helps prevent dangerous cross-connections.
Q4: What are the available sizes and working pressures?
The hose is commonly available in internal diameters of 6 mm, 8 mm, and 10 mm. Working pressures typically range from 20 to 40 bar, depending on the size and construction. Custom specifications are available upon request.
Q5: What types of connections or fittings can be used?
The hose is compatible with standard welding hose connectors, clamps, and threaded fittings. It can be supplied with plain ends for fitting on-site or pre-fitted with brass connections and ferrules according to customer requirements.
Q6: What standards does this Twin Welding Hose meet?
This hose is manufactured to meet international quality and safety standards, such as ISO 3821 (gas welding equipment) or equivalent specifications, ensuring reliable performance in industrial and professional applications.
Q7: Is the hose resistant to oil and external damage?
Yes, the outer cover is formulated to resist oil, grease, and mechanical abrasion commonly found in workshops and construction sites. It also offers resistance to flame and weathering, extending the hose's service life.
Q8: Can this hose be used for both welding and cutting applications?
Absolutely. The twin welding hose is versatile and suitable for all standard oxy-fuel processes, including welding, cutting, brazing, and heating, providing a steady and reliable gas supply.
Q9: What are the standard hose lengths available?
The hose is typically supplied in coils of 20 meters, 30 meters, or 50 meters. Custom cut lengths, including paired and assembled sets with regulators and torches, can be manufactured to meet specific project requirements.
Q10: What are the advantages of using a twin welding hose over two separate hoses?
The twin-line design prevents the hoses from tangling, reduces clutter in the workspace, and ensures that the two lines remain paired for easy handling and identification. This enhances both safety and efficiency for the operator.
Professional Hose Maker — years of experience in welding & industrial hoses
Quality Assurance — 100% inspection, high cycle testing
Custom Solutions — hose length, fittings, pressure ratings customizable
Reliable Materials — EPDM, strong reinforcement, durable cover
Global Export Service — secure packaging, customs documentation, logistic support
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