Brand bright woods cause product model CTS-YIII applicable scope liquid gas storage tank product alias liquid gas automatic draining valve connection form flange nominal size 20,25,50 (mm) is suitable the medium water, the liquefied gas pressure scope 4.0 (Mpa) is suitable the temperature 5-50 (C)main body material carbon steel The liquified petroleum gas storage tank system has the high pressure, the liquified petroleum gas has flammable explosive and the phase state instable characteristic, even if has the few revelations, also possibly has the serious consequence. The artificial dehydration (cuts water) when the liquified petroleum gas is extremely easy to carry over outside the storage tank, not only causes the air pollution, impairs the worker health, will also leave behind the serious safe hidden danger. CTS-YIII escapes the type liquid gas storage tank automatic dehydrator again, is aims at the liquid gas the characteristic and cannot have the automatic dehydration which any revelation's special request designs (to cut water) to install. It can, in does not use other outside power supply under the condition to discharge in the liquified petroleum gas storage tank to sink automatically the precipitation, simultaneously does not have strictly the liquified petroleum gas blockade in the storage tank reveals slightly. The dehydrator implements the two-pole dehydration, has 2 self acting valves to protect, thus compares the single stage to be able to guarantee the liquified petroleum gas storage tank dehydration (cuts water) the validity, the reliability, the security, can eliminate the environmental pollution and the safe hidden danger well, reduces the worker labor intensity and protects worker's health. principle of work: 1, takes the power using float's gravity and the different density medium's buoyancy difference, the labor lever principle enlargement action, enables it to achieve dynamics which opening or the shut-off valves need. 2, the use link principle " U "the tube function, the control liquid flows, the promotion water and the liquified petroleum gas separate and form the top digit hydraulic packing rapidly, strict sealing fluid carburetion. 3, (cuts two function same liquified petroleum gas dehydration water) to install a