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Choosing the appropriate air vent valves, whether they are combination, automated, or manual, is crucial when working on a project in the United Arab Emirates. They are the unsung heroes of our oil and gas, HVAC, and district cooling industries, silently releasing trapped air to prevent harm and maintain system functionality. The good news is that local providers do more than simply sell you the part; they also provide you with installation assistance, sound technical advice, and dependable after-sales care to ensure that everything functions flawlessly in our harsh environment.
Typical UAE Price Range (AED):
• Standard Automatic Air Vent Valves (Brass / Stainless Steel): 50 – 800 (Size: ½" – 1")
• Manual Air Release Valves (MAB): 30 – 400 (Size: ½" – ¾")
• Combination Air Valves (Air Release & Vacuum): 300 – 2,500+ (Size: 1" – 4")
• Large Diameter Air Vacuum Valves (for Mains): 1,000 – 8,000+ (Size: 6" – 12")
• High-Pressure Air Vents (for Oil & Gas): 500 – 5,000+.
Note: Pricing is influenced by valve type (automatic/manual/combination), material of construction (brass, cast iron, stainless steel), size (inch/mm), pressure rating (PN16, PN25, etc.), connection type, and brand. Bulk project pricing is typically negotiated and can be significantly lower.
| Application / Environment | Recommended Material | Example Products & Standards |
|---|---|---|
| Potable Water Supply, Municipal Mains | Ductile Iron (DI) with Epoxy Coating | Ductile Iron Air Valves • DI Combination Air Valves • Epoxy Coated Air Valves |
| Sewage, Wastewater, Industrial Process | Cast Iron (CI) or Ductile Iron (DI) | Cast Iron Air Release Valves • CI Air Vent Valves |
| Chilled Water, HVAC, District Cooling (Indoor) | Cast Iron (CI) or Carbon Steel | CI Air Vents for HVAC • Carbon Steel Air Valves |
| Coastal/Marine Projects, Desalination, Offshore | Stainless Steel 316 (SS316) | SS316 Air Release Valves • Stainless Steel Air Vents • Marine Grade Air Valves |
| Chemical Plants, Corrosive Media | Stainless Steel 316L or Duplex | SS316L Air Valves • Duplex Stainless Air Valves |
| Hot Water Systems, Heating Lines | Brass or Bronze | Brass Air Vent Valves • Bronze Air Release Valves |
| Marine Tanks, Fuel Storage (Non-Corrosive) | Bronze (JIS Marine Grade) | Bronze JIS Air Vent Heads • Marine Bronze Air Vents |
Consider the pipeline diameter and the necessity for air release when selecting the size of the air vent valve; typical sizes range from ½" to 1". The pressure rating ought to be higher than the maximum operational pressure of your system. To guarantee durability and safety, always choose a rating higher than the working pressure for high-temperature systems in the United Arab Emirates.
Install air vent valves after pressure tanks, downstream of pumps, at the top of long pipeline runs, and at the highest points in the system. The air naturally builds up in these places. For effective air removal and damage prevention for your UAE-based fluid system, proper positioning is essential.
Installing automated air vent valves on air separators, next to terminal units, and at high points in the HVAC loop will efficiently release trapped air. Use valves on selected ports for manual purging. For Dubai's constant cooling needs, automatic vents are perfect since they preserve system performance and reduce noise and corrosion.
Water shouldn't be routinely released from an air vent valve. A failing or waterlogged float is indicated by continuous discharge, while occasional little dampness during air release is normal. This indicates that in order to restore appropriate system protection and functionality, the valve has to be inspected or replaced right away.
Debris, rust, or a broken seal that prevents the float from rising are the reasons for a waterlogged float in an air vent valve. Use versions with stainless steel floats, install a strainer before the valve, and do routine maintenance checks to avoid it, particularly in the UAE's hard water regions.
Because of the constant high temperatures in the UAE, air vent valves typically do not need freeze protection. Although it is not a typical requirement for the majority of HVAC or water applications, insulation may be advised for specialized, exposed industrial systems with very low-temperature fluids.
No, ordinary air vent valves aren't appropriate. Specialized ductile iron or stainless steel valves with wider orifices that are resistant to clogging from sludge and grease are needed for sewage and wastewater. A conventional valve will fail quickly and jeopardize the ventilation of the system. Valve designs for wastewater duty should always be specified.
