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| COVNA Control Valve Series | COVNA Pneumatic Butterfly Valve Series |
Parameters
Structural advantages and characteristics
1、Shel: body materialis hard aluminum aloy, which is treated by hard anodic oxdization and coated by Polyester powder, so that it has great corosion resistance
2、Motor: fully enclosed cage type motor is smallin size and inertia, large in torque. lnsulation class is f grade which can prevent motor over-heating,
3、Manual Overide: smal handle is reliable, energy*saving. t can be used for manual operation when electricityis of; in automatic operation, it can be fixedinside the clip for easy operation;
4、Indicator: indicator is assembled on center axis, valve position can be observed;0utside mirror design faciitates position observation and preventswater drops accumulation;
5、Self Lock: accurate turbo-worm structure can output large torque with high efficiency and litle noise (Max. 50 decibel.service life is quite long. its selflockfunction can stop reverse rotation. Drive part is stable and reliable without additional lubrication;
