Description
The valve respiratory UD - 1 (03 23802) is intended for automatic maintenance of pressure in hermetically wraparound tank for storage of oil products. Service conditions of the valve respiratory. In the open air in areas with a low temperature (not below? 40 °C) and relative humidity of air to 100% . The valve respiratory is installed on a cover of a mouth of stationary tanks or tanker trucks.
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Device of the valve respiratory - 03 23802:
The valve respiratory consists of the case - the valvate package consisting of pressure valve with laying and the vacuum valve with a core - pressure valve springs: vacuum valve springs - plugs adjusting - grids brass with a washer - a reflector - laying and a cover
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Principle of operation of the UD - 1 valve:
At increase in pressure in the tank (tanker truck) of vapors of fuel over 0,25 kgfs/cm2 (it results from pumping of fuel or at its temperature expansion) the valve of pressure rises, squeezing a spring. Fuel vapors through a gap between the case and a cover pass to atmosphere. Pressure in the tank (tanker truck) decreases and on reaching 0,25 kgfs/cm2 pressure valve under the influence of a spring is closed. Thus the valve respiratory UD - 1 supports pressure.
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Operation of the valve - 03 23802:
- Respiratory it is necessary for ensuring normal and trouble - free operation of the valve installed on the tank:
- To keep clean a valvate package, clearing details of dust, dirt and ice.
- To make survey and check during the spring and summer period at least two times a month - at a temperature of external air below 0 of °C — at least once a week.
- At low temperatures of external air to check the valve respiratory for freezing: the vacuum valve by pressing a core, pressure valve by pulling up for a core.
- Once a year to check the valve respiratory for tightness.
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Characteristics of the valve respiratory:
- Type - Mechanical with dish - shaped
- Conditional pass - 50 mm
- Working pressure is 0,25 kgfs/cm2
- Working pressure vakuumetrichesky - 0,01 kg/cm2
- Capacity with a pressure of 0,4 kgfs/cm2 - 30 m/hour
- Capacity with a vakuumetrichesky pressure of 0,1 kgfs/cm2 - 20 m/hour
- Overall dimensions - 106 x 150 mm
- Weight - 0,35 kg