Dökme Demir Küre Vana

1. GirişDökme DemirGlobVhayatta

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

2. Parameters of Dökme DemirGlobVhayatta

Sızdırmazlık Yüzü

13Cr,STL, PTFE, Naylon, Gövde malzemesi ile

3. Advantages of Dökme Demirglobvhayatta

1) The structure of the Dökme Demirglobvhayatta is simpler than that of the gate vhayatta, and it is more convenient to manufacture and maintain.
2) Sızdırmazlık yüzeyiof Dökme Demirglobvhayatta is not easy to wear and scratch, and the sealing performance is good. There is no relative sliding between the vhayatta disc and the sealing surface of the vhayatta 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 Dökme Demirglobvhayatta is opened and closed, the disc stroke is small, so the height of the shut-off vhayatta is smaller than that of the gate vhayatta, but the structure length is longer than that of the gate vhayatta.
4) Dökme Demirglobvhayatta has a large opening and closing moment, which is laborious and takes a long time.
5) The medium channel in the Dökme Demirglobvhayatta 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 Dökme Demirglobvhayatta PN≤16MPa, the downstream flow is generally adopted, and the medium flows upward from the bottom of the vhayatta flap; when the nominal pressure PN≥20MPa, the reverse flow is generally adopted, and the medium flows downward from the top of the vhayatta flap. In order to increase the seal performance. When in use, the shut-off vhayatta medium can only flow in one direction and cannot change the direction of flow.
7) The vhayatta flap is often eroded when the Dökme Demirglobvhayatta is fully opened.

4. SSS