This product is mainly used for cutting in pipelines, and is suitable for cutting in pipelines with general working media such as water, solvents, acids, and natural gas.
Principle: When closed, the valve disc is tightly pressed against the valve seat at the outlet end by the medium pressure to ensure a tight sealing surface without leakage; When opening, rely on the driving mechanism to open the valve disc to achieve the opening and closing action.
Features:
1. The structure is simple and compact.
2. Lightweight and easy to maintain.
3. Good tuning performance.
4. Easy and flexible operation.
5. Widely applicable.
6. Long service life.
7. Can be used in vacuum systems.
Structural form: According to the structural form, it can be divided into the following types:
Floating type; Fixed type; Elastic clamping type; Lever type; Three piece design. Double eccentric rotating spring type; Multi spring diaphragm actuator (single acting and double acting); Sleeve telescopic actuator; Electric and pneumatic actuators; Gear transmission type; Worm gear and worm gear transmission type; Explosion proof series; Special type.
Key points for actuator selection and installation:
1. Select different material flange connection methods based on the medium and temperature transported by the pipeline;
2. Choose appropriate specifications and models;
3. Determine the matching relationship between nominal diameter and pipeline;
4. Check if lubricating oil (grease) is added to the packing box;
5. Check and confirm if the handwheel position of the shut-off valve is correct;
6. If there is a pressure relief phenomenon, timely measures should be taken to handle it.
If any faults are found, promptly notify the manufacturer or supplier to replace the parts; Regular maintenance and upkeep; Long term storage should be stored in a dry and ventilated place. |
