The main difference between the oxygen flow control valve and the ordinary control valve is: one more production process requires oil-free treatment. Generally, carbon tetrachloride cleaning can achieve the purpose of degreasing and oil-free. The flow control valve for oxygen adopts a top-oriented structure and is equipped with a multi-spring actuator. As a control valve factory, UTMOST oxygen flow control valve has the advantages during the use such as compact structure, lightweight, sensitive action, S streamline flow channel, small pressure drop loss, large valve capacity, accurate flow characteristics, and convenient disassembly and assembly. Please feel free to contact our control valve manufacturers in china for more information.
| DN (mm) | 20 | 25 | 32 | 40 | 50 | |||||||||||
| Seat diameter dn(mm) | 10 | 12 | 15 | 20 | 10 | 12 | 15 | 20 | 25 | 32 | 32 | 40 | 32 | 40 | 50 | |
| CV | Line | 1.8 | 2.8 | 4.4 | 6.9 | 1.8 | 2.8 | 4.4 | 6.9 | 11 | 18 | 18 | 28 | 18 | 28 | 44 |
| KV | Equal percentage | 1.6 | 2.5 | 4 | 6.3 | 1.6 | 2.5 | 4 | 6.3 | 10 | 16 | 16 | 25 | 16 | 25 | 40 |
| Stroke L | 16 | 25 | ||||||||||||||
| Effective area of diaphragm Ae(cm2) | 280 | 400 | ||||||||||||||
| DN(mm) | 65 | 80 | 100 | 125 | 150 | 200 | 250 | |||||||||
| Seat diameter dn(mm) | 65 | 65 | 80 | 65 | 80 | 100 | 125 | 125 | 150 | 150 | 200 | 250 | ||||
| KV | Line | 69 | 69 | 110 | 69 | 110 | 176 | 275 | 275 | 440 | 440 | 690 | 1100 | |||
| Equal percentage | 63 | 63 | 100 | 63 | 100 | 160 | 250 | 250 | 400 | 400 | 630 | 900 | ||||
| Stroke L | 40 | 60 | 100 | |||||||||||||
| Effective area of diaphragm Ae(cm2) | 600 | 100 | 1600 | |||||||||||||
| PN | MPa | 1.6, 2.5, 4.0, 6.4(6.3)/2.0, 5.0, 11.0 | ||||||||||||||
| Bar | 16, 25, 40, 64(63)/20, 50, 110 | |||||||||||||||
| Lb | ANSI：Class150, Class300, Class600 | |||||||||||||||
| Flow characteristics | Straight line, equal percentage | |||||||||||||||
| Adjustable ratio(R) | 30, 50 | |||||||||||||||
| Spring (signal) range Pr(KPa) | 20～100, 40～200, 80～240, (20～60, 60～100) | |||||||||||||||
| Air pressure Ps(MPa) | 0.14/0.25/0.3 | |||||||||||||||
| Allowable leakage | metal plug：Ⅳ(10-4×Kv) soft plug：Ⅵ | |||||||||||||||
| Operating temperature (℃) | Normal temperature type | -20～200, -40～250, -60～250 | ||||||||||||||
| Cooling type | S | -40～350, -60～350 | ||||||||||||||
| High temperature type | G | 350～550(Select high temperature materials) | ||||||||||||||
| Low temperature type | D | D0：-60～-100, D1：-100～-200, D2：-200～-250 | ||||||||||||||
| Adjust cut type | Q | -40～150 (plug reinforced PTFE) (used in special cases) | ||||||||||||||
An oxygen control valve operates by adjusting the size of the opening through which oxygen passes, thereby controlling the flow rate. This adjustment can be done manually or automatically, depending on the valve's design.
Manual valves: Operated by hand, typically using a knob or lever.
Automatic valves: Controlled electronically or pneumatically, often integrated with sensors and control systems for precise regulation.
Proportional valves: Adjust the flow rate based on input signals, providing a continuous range of control.
Medical facilities: For supplying oxygen to patients through ventilators and oxygen therapy systems.
Industrial applications: In processes such as metal cutting and welding.
Laboratories: For various experimental and research purposes.
Flow rate requirements: Ensure the valve can handle the maximum and minimum flow rates needed.
Pressure rating: Match the valve's pressure rating with the system's requirements.
Material compatibility: The valve material should be compatible with oxygen to prevent reactions and ensure safety.
Type of control: Decide between manual, automatic, or proportional control based on the application needs.
Regular inspection: Check for wear and tear, and ensure all parts are functioning properly.
Cleaning: Keep the valve clean to prevent contamination and blockages.
Calibration: Periodically calibrate automatic and proportional valves to ensure accurate control.
Avoid oil and grease: These can react with oxygen and pose a fire hazard.
Proper installation: Ensure the valve is installed correctly according to the manufacturer's instructions.
Pressure regulation: Use appropriate pressure regulators to avoid over-pressurization.
Leakage: Check and replace seals or gaskets as needed.
Blockages: Clean the valve to remove any debris or contaminants.
Inaccurate flow: Recalibrate or repair the valve to restore proper function.
Consistent leakage: Indicates wear that cannot be repaired.
Inconsistent flow control: Suggests internal damage or malfunction.
Physical damage: Cracks or corrosion that compromise the valve's integrity.
