The characteristics of liquid filling inside the pneumatic butterfly valve are as follows:
1. Reduce the gas volume inside the pneumatic butterfly valve, thus increasing the natural frequency of the pneumatic butterfly valve.
2. Since water is a non shrink medium, it can achieve accurate positioning.
3. Temperature Our specification The operating temperature range of industrial pneumatic butterfly valve is - 40 ℃~+60 ℃
4. Normative pneumatic butterfly valve According to our experience, the maximum operating pressure is 0.7 Mpa.
5. The maximum pressure of high-strength (four layer framework layer) pneumatic butterfly valve is 1.25 Mpa.
The length specification of core plate beam is generally 10m, 13m, 16m, 20m, 25m, 30m, etc. If the length exceeds 30m, it is generally not designed as a hollow plate beam. In the common construction process, due to various reasons such as construction turnover, pneumatic butterfly valves are generally used for the internal core formwork of hollow slabs with a length of less than 13m, while there is a wide choice for the internal core formwork of hollow slabs with a length of more than 16m. Pneumatic butterfly valves, wood core formwork or steel core formwork can be used. The pneumatic butterfly valve produced by Hengshui Tianzheng can withstand greater pressure and is not easy to deform.
The pneumatic butterfly valve of hollow slab beam has a circular inflatable core mold and an octagonal inflatable core mold. The removal time is the initial setting of the concrete. The experienced workers usually press the concrete roof with their fingers without fingerprints. Generally, 60-90 beams are recycled, and the outer capsule may be damaged: the wooden inner formwork of rigid skeleton fabricated wooden formwork does not directly contact with the concrete, as long as attention is paid to the removal, the wooden board is generally not damaged, and there are many turnover times, and the local deformation and damage only need to be replaced, The overall flatness and straightness of the internal formwork will not be affected: the combined steel internal formwork will cause certain deformation when removing the formwork due to the direct contact between the formwork and the concrete. After correction, it will not affect the use and can be recycled. Through the above comparative analysis, it can be seen that the internal formwork can accelerate the construction speed, reduce the labor time and intensity of workers while ensuring the project quality. The cost is low, which can effectively reduce the project cost and improve the comprehensive benefits.