Oxy-acetylene welding blow pipe for gas welding, brazing, silver soldering and flame heating — in stock at Multi Trade Combines, AT Road, Guwahati. For HVAC, refrigeration and engineering workshops across Northeast India.
A blow pipe is the oxy-acetylene welding torch used for gas welding, brazing, bronze welding and flame heating operations. While MIG and MMA (stick) welding have become dominant for structural steel fabrication, the oxy-acetylene blow pipe remains irreplaceable for a range of specialist joining and heating operations: copper and brass pipe brazing in refrigeration and HVAC installations, silver brazing of carbide tips to tool shanks, bronze braze-welding of cast iron components, flame straightening of welded steel distortions, and thin sheet steel butt welding where the heat control of gas welding is preferred over the more intense arc welding heat input.
Refrigeration and air conditioning engineers in Guwahati use blow pipes daily for brazing the copper pipe joints in refrigeration circuits — a task that cannot be done with electric arc welding. Automotive body repair workshops use flame heating to straighten distorted steel sections that cannot be pulled back into shape by other means. Industrial maintenance technicians use brazing to repair cracked cast iron components that would crack further under arc welding heat. Multi Trade Combines stocks blow pipes and the full range of oxy-acetylene accessories at our Guwahati counter.
In stock at Multi Trade Combines, AT Road, Guwahati — ships across NE India
Guwahati's expanding HVAC installation and refrigeration service market — driven by the rapid growth of commercial real estate, cold chain logistics, pharma storage and food processing — relies on oxy-acetylene brazing of copper refrigerant pipework on every installation and service job. Refrigeration engineers working on commercial cold rooms, multi-split air conditioning systems and industrial chillers carry blow pipes and cylinders as standard service equipment. Sheet metal fabricators making decorative gates, furniture frames and art metalwork in Assam use gas welding for thin material joins where arc welding would burn through. The blow pipe pairs with the gas regulator, cutting torch and welding gauge — together forming a complete oxy-fuel station available from Multi Trade Combines. We ship to customers across Assam, Meghalaya, Arunachal Pradesh, Nagaland and the wider Northeast from our AT Road counter.
| Category | Welding Machines |
|---|---|
| Key specs | Oxy-acetylene welding blow pipe |
| Availability | In stock — price on request |
| Type | Oxy-acetylene welding blow pipe / welding torch |
| Application | Gas welding, brazing, silver soldering, flame heating, straightening |
| Gas supply | Oxygen + acetylene (separate regulators required) |
| Nozzle sizes | Range of nozzle tips for different material thickness |
A blow pipe — also called a welding torch or blowpipe — is used for oxy-acetylene gas welding, flame hardening, silver brazing and bronze welding (braze welding). Unlike the cutting torch, which delivers a high-volume oxygen cutting jet, the blow pipe mixes oxygen and acetylene in precisely controlled proportions to produce a controlled, adjustable flame for heating, melting and joining metal. Gas welding with a blow pipe is used for thin sheet steel welding, copper pipe brazing for refrigeration and plumbing, and flame straightening of distorted steel fabrications. Call +91 91812 13332 for specifications.
The flame character of the blow pipe is controlled by adjusting the oxygen and acetylene flow valves. A neutral flame has an equal mix and is the standard for most gas welding. A carburising flame has excess acetylene and is used for hard-facing and some cast iron welding. An oxidising flame has excess oxygen and is used for brass brazing. Correct flame setting is critical to weld quality — the wrong flame character will contaminate the weld metal. Multi Trade Combines can advise on blow pipe and nozzle selection for your specific process. WhatsApp +91 76359 98826 for stock.