Acetylene Gauge Normal
A normal working (delivery) pressure for an acetylene gauge is 5 to 10 PSI (pounds per square inch), with 7 PSI being the most common standard setting for general welding, brazing, and cutting
Description
Acetylene Gauge Normal
A normal acetylene pressure gauge features dual dial indicators—a high-pressure inlet gauge (0–500 psi) for the cylinder content and a low-pressure delivery gauge (0–30 psi) with a critical red safety warning line at 15 psi
Features
- Dual Dial Setup : Includes one gauge showing remaining tank volume and a second gauge showing working pressure delivered to the torch.
- Strict Pressure Limits : Low-pressure delivery gauges highlight a maximum safe working limit of 15 psi (103 kPa) , because acetylene becomes chemically unstable and explosive at higher pressures.
- Durable Brass Construction : Built with a forged brass body and brass internal sockets to resist wear and handle industrial environments.
- Safety Relief Valve : Equipped with an internal safety mechanism or blow-out back to prevent dangerous over-pressurization.
- Specific Gas Labeling : Clearly marked for use strictly with acetylene (prohibiting contact with copper, silver, or mercury fittings to prevent explosive metal acetylide formations)
Specification
| Specification Category | Parameter | Typical Standard Value |
|---|---|---|
| Specification Metric | High-Pressure Gauge (Cylinder / Inlet) | Low-Pressure Gauge (Delivery / Outlet) |
| Primary Purpose | Measures remaining solution pressure in the cylinder. | Measures delivery gas pressure flowing to the torch. |
| Typical Gauge Scale Range | 0 to 400 PSI (or 0 to 500 PSI) 0 to 40 bar | 0 to 30 PSI 0 to 2.5 bar |
| Normal Operational Range | 150 to 250 PSI at room temperature (70°F/21°C). | 3 to 10 PSI (depending on application). |
| Critical Safety Threshold | Fluctuates strictly by temperature (increases ~2.5 PSI per 1°F rise). | 15 PSI max safe working limit. |
| Visual Indicators | Graduated standard markings. | Red Line or Shaded Red Zone starting at 15 PSI. |
| Threading & Connections | Left-hand female/male nuts (CGA 510 or CGA 300). | Left-hand thread M16 x 1.5 (with V-notched nuts). |
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