Characteristics of spring pneumatic butterfly valve
1、 Main use:
This machine is mainly used for fatigue life test of various spiral springs, pneumatic butterfly valves, seal springs, etc. It is widely used in spring, pneumatic butterfly valve consumption, application and other industries.
2、 Function characteristics:
1. Adjust the amplitude and frequency of the spring according to the technical requirements of the spring.
2. LCD Chinese characters are displayed, and the number and frequency of experiments can be input into the program according to the request, which is automatically completed.
3. The preset number of experiments stops automatically.
4. The connecting cam of the motor and reducer drives the connecting rod to reciprocate and complete the contraction of the spring.
5. Simple operation, reliable and stable operation.

The valve needs maintenance. If this work is done well, the service life of the valve can be extended. The maintenance of the valve will be introduced below. Custody and maintenance
1. The purpose of storage and maintenance is not to damage the valve or reduce the quality during storage. In fact, improper storage is one of the important reasons for valve damage.
2. The valves shall be kept in order. Small valves shall be placed on the shelf, and large valves can be arranged in order on the warehouse floor. They shall not be stacked in disorder, and the flange connection surface shall not contact the ground. This is not only for the sake of beauty, but mainly to protect the valve from damage.
3. These unnecessary losses should be avoided due to improper storage and handling, broken handwheel, misaligned valve stem, loosening and loss of fixed nuts between handwheel and valve stem, etc.
4. For valves that are not used for a short time, asbestos packing shall be taken out to avoid electrochemical corrosion and damage to the valve stem.
5. The valves that have just entered the warehouse shall be checked. If rain or dirt enters during transportation, they shall be wiped clean and then stored.
6. The inlet and outlet of the valve shall be sealed with wax paper or plastic sheets to prevent dirt from entering.
7. The valve machining surface that can rust in the atmosphere shall be coated with antirust oil for protection.
8. The valves placed outdoors must be covered with waterproof and dustproof articles such as linoleum or tarpaulin. The warehouse where valves are stored shall be kept clean and dry.