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An image featuring a storage tank farm equipped with breather valves and other tank protection equipment. The array of storage tanks, surrounded by pipelines, showcases the implementation of safety measures such as breather valves to regulate pressure and protect against overpressure or vacuum conditions in the tanks

Tank Blanketing

Tank Gas Blanketing Valve

Tank Blanketing (TGBV):


A Tank Gas Blanketing Valve (TGBV) is a crucial component that controls the flow of gas, typically nitrogen, into a vessel or line. Its main purpose is to maintain the pressure of the gas blanket by opening when the pressure drops below a set point and closing when it reaches the desired level. Blanketing the product with an inert gas like nitrogen is essential to safeguard it from air contamination. Using an inert gas for blanketing is also safer than having a volatile vapour-filled space.

Corsair Valve Services - Your Trusted Source for Flame Arresters:


At Corsair Valve Services, we are committed to offering a comprehensive selection of Tank Gas Blanketing Valves (TGBVs) available in various designs and configurations, providing exceptional versatility to suit various applications. We collaborate with multiple manufacturers to ensure that our customers have access to the most suitable and high-quality Tank Gas Blanketing Valves for their specific requirements

Key Features:

  • Sizes: 1/2" or 1"

  • Body Materials: 316 SS

  • Pressure Setting ranges: 1.24 - 1000 mBar(g)

  • Inlet and Outlet Options: 

1/2” 150# ANSI RF Flange

 1” 150# ANSI RF Flange on 1/2” Valve

 DN 15 (1/2”) PN 10/16 DIN RF Flange

 DN 25 (1”) PN 10/16 DIN RF on 1/2” Valve

 1/2″ Sanitary Connections

 1/2″ Quick Couplings

 1” FNPT

 1″ 150# ANSI RF Flange

 2” 150# ANSI RF Flange on 1” Valve

 DN 25 (1”) PN 10/16 DIN RF Flange

 DN 50 (2”) PN 10/16 DIN RF Flange on 1” Valve

 1″ Sanitary Connections

  • Standard Seat Materials: ​





Choose Corsair Valve Services for top-qualityTank Gas Blanketing Valves, backed by expert advice and exceptional customer service. Safeguard your operations with reliable tank protection solutions from Corsair Valve Services

Corsair Valve Services also specialises in the maintenance and calibration of breather valves from all brands, adhering to API 2000 and ISO 28300 standards, which also includes conducting a leak test. Other service providers may lack the necessary equipment for conducting leakage tests, leading to critical omissions during servicing. In addition, insufficient knowledge of industry standards such as API 2000, ISO 28300, and EEMUA 231 can result in inadequate servicing and testing. Therefore, when selecting a service provider to maintain your breather valves, it is crucial to ensure that they possess the appropriate expertise, equipmemt and adhere to industry standards in their service and testing procedures.

"How do they work ?"

Pressure and Vacuum Relief Valves, commonly known as Low Pressure and Vacuum Relief Vents, Breather Valves, Conservation Vents, or Tank Vents, serve a crucial role in safeguarding atmospheric storage tanks. They are specifically engineered to prevent over pressurisation or excessive vacuum conditions, as well as minimise the evaporation of tank contents into the atmosphere.

The need for pressure and vacuum relief arises in various situations, including:

  1. Displacement: When an atmospheric storage tank is being filled or emptied.

  2. Thermal events: Occurrences related to temperature changes.

  3. Fire conditions: Protecting the tank during fire incidents.

  4. Other events: Instances such as equipment failure that can impact tank pressure or vacuum levels.

These valves play a vital role in maintaining the integrity and safety of storage tanks by regulating pressure and vacuum levels in a controlled manner

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