description Technical Overview
Zedeyes Oxygen/Acetylene pressure gauge
The Zedeyes 111OF is a specialized dry pressure gauge engineered specifically for oxygen, dissolved acetylene, and welding gas safety applications. Built in strict accordance with the ISO 5171 standard, all internal wetted components undergo rigorous degreasing to ensure they are 100% oil- and grease-free, eliminating the risk of violent chemical reactions when in contact with high-pressure oxygen.
Enclosed in a durable black steel case with electrostatic coating, the Model 111OF features an integrated rear blowout device. In the event of a Bourdon tube rupture, the rear blowout disc acts as a pressure relief vent, safely discharging pressurized gas out the back of the instrument away from operators. Equipped with a heavy-duty brass socket, a scratch-resistant snap-in lens, and a geometrically balanced dial design, the 111OF delivers safe, reliable performance for gas regulators and welding skids.
Key Features & Benefits
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ISO 5171 Oxygen Safety Compliance: Degreased wetted surfaces guarantee zero contamination from hydrocarbon-based solvents, oils, greases, or detergents.
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Rear Blowout Protection: Case design includes a dedicated rear blowout disc to safely vent overpressure and gas in the event of internal Bourdon tube failure.
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High-Quality Brass Socket: Socket machined from premium high-density brass bar stock for enhanced structural durability and thread integrity.
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Break- & Scratch-Resistant Lens: Heavy-duty optical snap-in window protects the dial face from impact and rough field conditions on mobile welding carts.
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Dedicated Gas Calibration Ranges: Features specialized scale ranges for low/high-pressure oxygen and acetylene gas monitoring across three nominal dial sizes (40 mm, 50 mm, and 63 mm).
Primary Applications
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Welding & Cutting Equipment: Pressure indication on oxy-fuel welding torches, cutting rigs, and gas manifold regulators.
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Medical Gas Regulators: Oxygen cylinder regulators, respiratory gas delivery, and hospital gas distribution skids.
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Liquefied & Compressed Gas Cylinder Lines: Pressure tracking for dissolved acetylene, oxygen, and inert shielding gases.
| Specification | Details |
|---|---|
| Nominal Sizes | 40, 50 and 63 mm |
| Oxygen Range – Low Pressure | 0–2.5, 4, 6, 10, 16, 25 or 40 bar |
| Oxygen Range – High Pressure | 0–250, 315 or 400 bar |
| Acetylene Range – Low Pressure | 0–1, 1.6 or 2.5 bar |
| Acetylene Range – High Pressure | 0–40 bar |
| Pressure Limitation – Steady | 75% of full scale |
| Pressure Limitation – Fluctuating | 65% of full scale |
| Overpressure Limit | 100% of full scale |
| Pressure Element | Copper alloy |
| Permissible Ambient Temperature | −20 to +60 °C |
| Maximum Medium Temperature | +60 °C |
| Accuracy – NS 40 | ±2.5% of full scale |
| Accuracy – NS 50 and 63 | ±1.6% of full scale |
| Window | Snap-in, scratch-resistant lens |
| Case | Black steel with electrostatic coating and blow-out protection |
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