The influence factors of electric two-way valve operation instability have?

by:Edison      2020-09-28

the influence factors of electric two-way valve operation instability have? In order to ensure that electric two-way valve when driving to work, make the system safe operation, must be before the new valve installation, strictly check valve parts, ensure consistent with the design requirements. Specific inspection items include: leak amount; All the schedule deviation; Back to the poor; Dead zone; The basic error, etc. After overhaul of the old valve should also check the stuffing box and joint sealing. Electric two-way valve in use at the scene, often due to improper installation, such as improper installation environment, installation position and direction pipe or process clean causes, such as operation is not stable, so we should pay attention to the following aspects: 1. Electric two-way valve belongs to the field instruments for environmental temperature in - 25 - 60 ℃, relative humidity & le; 95%, if the installation in the open air and high temperature, waterproof, cooling measures should be taken to increase the anti-shock measures. 2. Electric two-way valve should be installed vertically, commonly special circumstances can tilt, but should increase support a protected. 3. Electric two-way valve process piping installation in general do not too close or too high above the ground or floor, if the platform shall be set up too high, facilitate the handwheel operation and easy maintenance. 4. Electric two-way valve before installation to process piping to clean thoroughly, remove dirt and welding slag, after installation, in order not to make the residue in the body, should also again to clean valve, in order to avoid impurity stuck valve core, after using the handwheel institutions, should be restored to the original neutral position. 5. In order to make the electric two-way valve in the case of failure and maintenance will not affect the production continues to run, electric two-way valve should add by-pass pipe and valve, to ensure that the electric two-way valve installation position meets the requirement of technological process. 6. Electrical part of the electric valve installation shall be in accordance with the relevant requirements for electrical equipment construction, thus flameproof products should be in accordance with relevant the explosive dangerous location electrical equipment installation standard requirements for installation. In the use of electricity open repair and maintenance of explosive areas. . . to knock of flame-proof surface, at the same time in the disassembling the harm upon or scratch flame-proof surface, after repair to be reverted to the original state of flame-proof requirement. 7. Actuator reducer should be lubrication after repairing, after assembly to check valve position and the opening of the valve position indicator.

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