Q:Ask you heroes, often go fishing or pond, found wild fish with the stem can be caught away, or catch with the stem can be caught and wired to further round of fried fish. But do not know how to buoy the stem, so easy to observe, increase the fun of fishing. Heroes please give advice one or two, preferably illustrated. Thank you

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Q:How to adjust the valve stem valve leakage?

4, in the valve seat; the actuator stiffness is too small; 5, the valve before and after the pressure is too large; 6, the valve positioner failure; 7, diaphragm or gas path pipeline leakage.

Q:What are their respective advantages and disadvantages?

Valve advantages:1, small flow resistance. Inside the valve body, the medium passage is straight through, the medium flows in a straight line, and the flow resistance is small.2, when opening and closing more effort. In comparison with the cut-off valve, the gate movement direction is perpendicular to the direction of the flow of the medium whether it is open or closed.3, high height, long opening and closing time. The opening and closing stroke of the ram is larger, and the reduction is done by screw.4, the media can flow in any direction on both sides, easy to install. Gate valves are symmetrical on both sides of the channel.5. Compact structure, good rigidity of valve, smooth channel, small flow resistance, stainless steel and carbide alloy used in sealing surface, long service life, PTFE packing, reliable sealing, easy and flexible operation

Q:Where is excavator, multiway valve stem processing?

Unfortunately, scanty domestic manufacturers are manufacturing excavator multi way valve stem, a little known is Nakagawa hydraulic.

Q:Valve stem at the water seepage, how to repair?

1, the correct choice of filler;2. Do the loading according to the correct method;3, stem processing unqualified, to repair or replace;

Q:Butterfly valve can not remove the butterfly plate, butterfly plate is fixed with pins and valve stem

The plate is a pain in the neckMethod 1: take out the pin and go out and drill the pin out

Q:What is the standard for valve stem oiling?

Often open, high temperature valve suitable for intervals of one week to one month refueling; not often open, the valve is not high temperature, refueling cycle may be longer.

Q:What is the reason for the leaking of the stem of the open rod gate valve? How to solve?

1, the stem gate valve stem leakage is mainly due to packing aging, packing wear, loose packing, packing, packing and other factors than correct, resulting in sealing failure.

Q:Butterfly valve stem calculation, why not take into account the bending moment?

Now most of the one-way seal structure, the three eccentric moment has little effect, mainly consider the torsion stress, two-way sealing butterfly valve or non - moment sealing butterfly valve to take into account the stem interference.

Q:The smallest diameter of the stem refers to the diameter of the contact portion of the stem packing. The minimum stem diameter refers to the diameter of the stem slot of the valve stem

This is machining knowledge, you do sales research, this is not easy, huh, huh