Tank Protection Equipment are filled with hazardous, expensive and fluctuating characterized chemicals, gases, raw materials and finished goods. All these are subject to change in volume, temperature, pressure and vacuum at any time due to changes in atmospheric condition.To ensure a safe working environment, preventing waste/loss & save personnel's life as well as equipment integrity, it is requiring to install various tank protection equipment.These equipment: are PV – Relief – Breather Valves, Tank Blanking Valves, Flame Arresters, Man-ways, Gauge Hatches, Free Vent, Emergency vents, Bursting - Rupture Discs, Level Indicators, Sight Glasses, Light for Sight Glasses, etc.
Features :
- Breather Valves (Conservation Valves)
- Due to the atmospheric and the tank fluid condition, the pressure and vacuum gets changes in the tank. To overcome these changes, the pressure and vacuum Relief-breather valve will control automatically to normal condition, as the pressure rises or fall, the pressure vacuum breather valve will allow the tank to breathe, preventing damage and spillage to ensure the safety of personnel & surrounding environment. It typically works in the range of – 800mbarg to 3.5barg. But, extended parameters are also available on request.
Available – types of valves, may be either Weight Loaded or Spring Loaded :
- Pressure & Vacuum to & from Atmosphere – Relief – Breather Valve.
- Pressure to Atmosphere & Vacuum from close Line – Relief – Breather Valve.
- Pressure & Vacuum to & from Close Line – Relief – Breather Valve.
- Pressure to Atmosphere – Relief – Breather valve.
- Pressure to Close Line – Relief – Breather Valve.
- Vacuum from atmosphere – Relief – Breather Valve.
- Vacuum from Close Line – Relief – Breather Valve.
- Pilot Operated P & V Relief – Breather Valve.
- Pilot Operated only – P or only – V Relief – Breather valve.
Details :
- Breather Valves(Conservation Valves
- Tank Blanking Valves
- Tank Blanking Valve maintain a positive pressure within an enclosed storage tank by introducing a gas such as nitrogen at required pressure. This valve also, prevents the vaporization and contamination of the stored products and also help to reduce product combustibility by
- eliminating Oxygen – rich air. It also protects the tank against rupture or damage with full protection. It helps to reduce emission and lower the cost of product loss especially in chemical, pharmaceutical industries and Bulk Storages.
- It also, prevent the outside air and moisture from entering in to the storage tank, a blanket gas pressure reduces the evaporation of the storage product to a negligible amount.
- The valve – to install in horizontal diaphragm housing position is recommended.
- The valve is free from oil/grease and self-actuating, no external control is needed.
- Reduction from very high primary pressure of say up to16bar to very low tank design pressure say down to 5mbar. High accurate setting is being achieved.
Bangkok, Thailand
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Mr. Madhusudan Thakor (Agility Engineering-Tech Co., Ltd.)
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