Valve Type Cutting Torch ｜ Fine Flame Control for Metal Cutting Across a Wide Range of Thicknesses

Key Takeaways
• Valve Type Cutting Torch is ideal for Oxy-Fuel Cutting that requires fine, continuous flame adjustment
• Rotary valve gas control delivers high stability for long cuts and heavy-duty applications
• Supports cutting from thin plates to extremely thick plates 3–645 mm
• Multiple models available based on thickness range, weight, and specific cutting requirements

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Metal cutting using the Oxy-Fuel Cutting process requires not only fast cutting initiation, but also long-term flame stability. Valve Type Cutting Torches are therefore widely used for continuous cutting, thick plate cutting, and applications that demand precise flame adjustment throughout the process.

In prolonged thick steel cutting operations, operators must maintain a consistent cutting line and temperature. Even slight flame fluctuation can cause excessive slag, uneven cut edges, or rework. Valve Type torches play a key role in keeping the flame stable throughout the operation.

Valve Type torches use rotary needle valves to control both oxygen and fuel gas flow. This allows highly precise adjustment, stable flames during long cuts, and reduced risk of over-cutting or excessive flame intensity. They are best suited for applications that do not require frequent start-stop actions but demand consistent cut quality.

🔷 Cutting Torch Valve Type Model Details
• M-Type Cutting Torch Z
Plate thickness: 3–30 mm
Torch body length: 433 mm
Torch body weight: 645 g
Nozzle: Sr.1120N / Sr.1151N
Fuel gas: Acetylene / LPG

• A-Type Cutting Torch Z
Plate thickness: 3–80 mm
Torch body length: 517 mm
Torch body weight: 790 g
Nozzle: Sr.1220N / Sr.1251N
Fuel gas: Acetylene / LPG

• HC-338 Cutting Torch S
Plate thickness: 3–100 mm
Torch body length: 525 mm
Torch body weight: 1,040 g
Nozzle: Sr.3040GT / Sr.3051GE
Fuel gas: Acetylene / LPG

• C-Type Cutting Torch
Plate thickness: 3–645 mm
Torch body length: 645 mm
Torch body weight: 1,580 g
Nozzle: Sr.1420 / Sr.1450
Fuel gas: Acetylene / LPG

Valve Type Cutting Torches are widely used for thick steel plate cutting, continuous fabrication processes, and heavy plate cutting where consistent cut quality is required over extended periods. When compared with Lever Type torches, Valve Type models excel in fine flame control and long-term stability, making them ideal for continuous and thick plate cutting. Lever Type torches, by contrast, are better suited for applications requiring frequent start-stop operations and rapid response.

Summary
Valve Type Cutting Torches are a reliable choice for metal cutting applications that demand precision, stability, and heavy-duty performance. Selecting the appropriate model based on thickness range and fuel gas helps reduce slag, minimize rework, and maintain consistent cutting quality over time.

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❓ FAQ
Q: What applications are Valve Type cutting torches best suited for?
A: They are ideal for continuous cutting, thick plate cutting, and applications requiring precise flame control.

Q: How do Valve Type torches differ from Lever Type torches?
A: Valve Type excels in stability and fine adjustment, while Lever Type is better for fast start-stop cutting.

Q: What thickness range can Valve Type torches handle?
A: Depending on the model, they support cutting thicknesses from 3 mm up to 645 mm.

📚 Glossary (Key Terms)
• Valve Type Cutting Torch: A cutting torch that controls oxygen and fuel gas flow using rotary valves for fine flame adjustment
• Oxy-Fuel Cutting: A metal cutting process using oxygen combined with a fuel gas
• Needle Valve: A rotary valve used for precise gas flow control