Βαλβίδα χυτοσιδήρου

1. Εισαγωγή τουΧυτοσίδηροςGλοβόςVκάτω

Χυτοσίδηροςgλοβόςvκάτω is a forced-sealing vκάτω, so when the vκάτω is closed, pressure must be applied to the disc to force the sealing surface to not leak. When the medium enters the vκάτω from below the disc, the resistance that the operating force needs to overcome is the friction force of the vκάτω stem and packing and the thrust generated by the pressure of the medium. The force to close the vκάτω is greater than the force to open the vκάτω, so ΧυτοσίδηροςThe diameter of the vκάτω stem of the gλοβόςvκάτω should be large, otherwise the vκάτω stem will bend up failure.

2. Parameters of ΧυτοσίδηροςGλοβόςVκάτω

Στεγανοποίηση προσώπου

13Cr,STL, PTFE, Nylon, Με υλικό σώματος

3. Advantages of Χυτοσίδηροςgλοβόςvκάτω

1) The structure of the Χυτοσίδηροςgλοβόςvκάτω is simpler than that of the gate vκάτω, and it is more convenient to manufacture and maintain.
2) Η επιφάνεια στεγανοποίησηςof Χυτοσίδηροςgλοβόςvκάτω is not easy to wear and scratch, and the sealing performance is good. There is no relative sliding between the vκάτω disc and the sealing surface of the vκάτω body when opening and closing, so neither abrasion nor abrasion is serious. The sealing performance is good and the service life is long. .
3) When the Χυτοσίδηροςgλοβόςvκάτω is opened and closed, the disc stroke is small, so the height of the shut-off vκάτω is smaller than that of the gate vκάτω, but the structure length is longer than that of the gate vκάτω.
4) Χυτοσίδηροςgλοβόςvκάτω has a large opening and closing moment, which is laborious and takes a long time.
5) The medium channel in the Χυτοσίδηροςgλοβόςvκάτω is tortuous, the fluid resistance is large, and the power consumption is large.
6) When the nominal pressure of the medium flow direction of the Χυτοσίδηροςgλοβόςvκάτω PN≤16MPa, the downstream flow is generally adopted, and the medium flows upward from the bottom of the vκάτω flap; when the nominal pressure PN≥20MPa, the reverse flow is generally adopted, and the medium flows downward from the top of the vκάτω flap. In order to increase the seal performance. When in use, the shut-off vκάτω medium can only flow in one direction and cannot change the direction of flow.
7) The vκάτω flap is often eroded when the Χυτοσίδηροςgλοβόςvκάτω is fully opened.

4. Συχνές ερωτήσεις