Air Vents - Pumps, Valves, Piping and Fittings

Marine air vents release trapped air from pumps, valves, pipelines and fittings, while some designs admit air during draining or vacuum conditions. They are supplied as automatic, manual, vacuum-breaking or combination air valves in materials suitable for seawater, freshwater, ballast, bilge and utility systems.

ProShipWorks provides end-to-end support to source and supply Air Vents for marine vessels, ship operators, industrial facilities, maintenance teams and procurement departments.

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Product Information

Product Name Air Vents
Product Category Pumps, Valves, Piping and Fittings
Product Reference 707
Brands / Manufacturers ARI-Armaturen, Bermad, Cla-Val
Unit of Measure Piece

Key Features

Key Feature
1.   Automatic release of accumulated air
2.   Vacuum protection during draining or pump stoppage
3.   Flanged, threaded or welded end connections
4.   Corrosion-resistant bronze, stainless steel, ductile iron or coated steel construction
5.   Suitable for marine piping and pump systems

Applications of Air Vents

Application
1.  Ballast, bilge and seawater cooling pipelines
2.  Freshwater, firemain and utility water systems
3.  Pump suction and discharge lines, high points and pipeline summits

Models & Manufacturers

Model Manufacturer
D-040 Automatic Air Release Valve ARI-Armaturen
D-050 Automatic Air Release Valve ARI-Armaturen
C10 Automatic Air Valve Bermad
Model 34 Combination Air Valve Cla-Val

Technical Specifications

Model Specification Value Unit
Marine air vent valve Valve type Automatic air release, vacuum-breaking or combination —
Marine air vent valve Body materials Bronze, stainless steel, ductile iron or coated steel —
Marine air vent valve Connection types Flanged, threaded or welded —
Marine air vent valve Service media Freshwater, seawater, ballast water, air and utility fluids —
Marine air vent valve Pressure rating Depends on selected model and connection standard; commonly PN10 to PN16 for water-service designs bar

Standards, Certifications & Class Approval

Review the available standards and approval information relevant to the product. Actual certification, material traceability, inspection and classification requirements depend on the product type, intended application and purchasing specification.

Applicable Standards & Certification Applicable requirements may include EN 1074-4 for air valves in water-supply systems, ISO 5208 or EN 12266 for valve pressure testing, and applicable flange standards such as EN 1092-2, ASME B16.5 or JIS B 2211. Certification is model- and service-dependent.
Class Approval Marine class approval is not universal for air vents. Where required, equipment may be accepted or type-approved by DNV, ABS, Lloyd's Register, Bureau Veritas or ClassNK subject to the vessel system, material, pressure rating and approved documentation.

Installation, Maintenance & Safety Information

Installation Notes Install at pipeline high points, pump casings or designated vent locations in the orientation specified by the manufacturer. Provide an isolation valve only where permitted by the approved piping design. Confirm flow direction, pressure rating, connection dimensions and material compatibility before installation.
Maintenance Tips Inspect periodically for leakage, corrosion, blockage and float or discharge-port malfunction. Clean the vent mechanism and strainer where fitted. Exercise isolation valves and replace damaged gaskets, seals or internal components using approved spare parts.
Safety Notes Isolate, depressurize and drain the line before removal or servicing. Treat vents as potentially pressurized and hot. Use suitable PPE and verify that released air or fluid is directed safely. Never exceed the rated pressure, temperature or approved media limits.

Request a Quote for Air Vents

Contact ProShipWorks for marine or industrial product sourcing, quotations and delivery.

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  • ETA / vessel schedule
  • Berth or vessel location
  • Required quantity
  • Preferred delivery window
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