Twin welding gas hose integrates oxygen (usually blue pipe) and fuel gas (such as acetylene, usually red pipe) in the same sheath. When you choose, you need to consider the following key factors:
Material Options
1.PVC material: PVC hose is the mainstream choice of the majority of users. It is lightweight, oil-resistant, chemical-resistant and flame-retardant. The smooth surface is easy to clean, suitable for conventional industrial environments, and cost-effective.
2. Rubber material: Some high-end models use natural rubber. It is suitable for frequent movement or low-temperature environment operations, but the cost is relatively high.
Specification & Size
For inner diameter (ID), you can choose the common specifications include 1/4” (about 6mm), 5/16” (about 8mm), 3/8” (about 9.5mm), 1/2” (about 12.7mm), etc. The size is directly affect the gas flow rate. Small diameter (such as 8-9.5mm) is suitable for portable equipment or short-distance gas supply. And large diameter (above 12.7mm) meets high flow requirements.
Length: The standard single roll length is 20-100 meters. We can customized length according to the operation radius. Pay attention to the pressure loss problem when transporting over long distances.
Working pressure: The pressure range of mainstream products is above 20 Bar (300 Psi), and the burst pressure can reach 60 Bar (900 Psi).
Compatible Gases & Application
Fuel gas compatibility: Red line channel is compatible with Acetylene, Natural Gas, etc.
Oxygen compatibility: The blue channel is dedicated to high-purity oxygen delivery. Make sure the material is oil-free to avoid the risk of explosion.
Applications :
Metal processing and manufacturing: Connecting the welding torch to weld and cut steel plates.
Construction site: On-site pipeline installation or steel structure construction.
Purchase Notes
Certification standards: All of our hoses confirm compliance with ISO, REACH or industry safety certification.
Environmental adaptability: For high temperature environments, you need to choose a heat-resistant reinforced type. For outdoor operations, it is recommended to choose an anti-UV coating type.
Identification clarity: The twin welding gas hose has two-color pipelines (red/blue). And it must be clearly distinguished to avoid misconnection.
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