When the valve stem nut is on the valve cover or support, the valve rod can be lifted and lowered by rotating the stem nut when opening and closing the gate. This structure is beneficial to the lubrication of the valve stem, and the degree of opening and closing is obvious, so it is widely used.
● It has the advantages of fast installation, simple, reliable, free from the limitation of installation site, and convenient for maintenance of pipelines and valves;
● It has the advantages of vibration isolation and sound insulation, and has the advantages of overcoming the deviation caused by connecting different shafts and solving the thermal expansion and cold contraction caused by temperature difference.
● It is widely used in water supply and drainage, fire control, air conditioning, gas, petroleum, chemical industry, water treatment, municipal administration, shipbuilding and other pipeline engineering for fluid control.
● Convenient installation and adjustment, long service life.
No. | Parts | Material |
1 | Body | QT450-10 |
2 | Resilient wedge | QT450-10+EPDM |
3 | O ring | NBR |
4 | Rising stem | 2Cr13 |
5 | Bonnet | QT450-10 |
6 | Bonnet | QT450-10 |
7 | Bracket | QT450-10 |
8 | Hand wheel | QT450-10 |
Custom products accepted, more dimensions, please contact us.
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