Q:What causes the stem to be stuck?

Many reasons, stem, valve shaft assembly size is not right, or packing with too tight can cause, stem finish is not enough, can produce

Q:Natural gas, oil or steam suitable for valves, valve stem, respectively, what is the material?

If it is ball valve, ball with A105 plating ENP.Of course, all stainless steel 304316 is better, but the price is high

Q:Shandong 30 loader multiple valve stem card what's wrong.

2., if the cylinder problem, the stem or valve hole will appear on a continuous block where there are grinding marks, the stem groove is a lot of fine iron powder, this situation can be responded to manufacturers, request a good change.In fact, many problems are cleanliness problems, and if you know how to wash, that is not a waste of time, simple and effective.

Q:Can the stem and sphere of a ball valve be made into a whole? Did you do that? Seek specific analysis

The ball and rod can of course be integrated (now this kind of valve is also a lot of it), and the split is different: one ball is generally mounted, and certainly, can only be in the form of a fixed ball valve (which might not be floating ball.). The advantage of this form is that the club is integral, with no stem ejection, no backlash, accurate drive, good rigidity and good assembly accuracy. The disadvantage is that the blank cost is high, processing equipment requirements. Generally speaking, one ball open ball valve is much more expensive.

Q:How is the diameter of the valve stem determined?

Inspection standards specify minimum diameter,AskWhat's the standard, please? What's the standard number?Chasing the answerFor example, after the ordinary steel gate valve GB GB/T 12234 API 600 American Standard valve must finish the strength of the school, as well as T type thread specification and so on a series of checking,

Q:How to adjust the valve stem valve leakage?

Connect the cylinder and the stem, screw down and lengthen the screw, it will not leak.

Q:How many connections are there between the handwheel and the stem?

I don't understand. I've got some information for youThe simplest is: your home faucet is the valve.First, the definition of valve:"Valve" is defined in the fluid system, used to control the direction of the fluid, pressure, flow device. A valve is a device for flowing or stopping the medium (liquid, gas, powder) in a pipe and equipment and controlling its flow.Two, according to the role of opening and closing valves, valve classification methods are many, here describes the following.1. classification by function and use(1) cut-off valve: cut off valve, also known as closed circuit valve, whose role is to connect or cut off the pipeline medium. The cut-off valve includes gate valve, globe valve, plug valve, ball valve, butterfly valve and diaphragm.(2) check valve: check valve, also known as one-way valve or check valve, its role is to prevent the medium back in the pipeline. Pump water off the bottom valve check valve also belongs to class.(3) safety valve: the role of the safety valve is to prevent the pipe or device in the medium pressure exceeds the required value, so as to achieve the purpose of safety protection.(4): regulating valve regulating valves including control valve, throttle valve and pressure relief valve, and its role in the regulation of the medium pressure, flow parameter.(5) shunt valve: diverter valve, including a variety of distribution valves and traps, etc., its role is to distribute, separate or mix the medium in the pipeline.

Q:and the valve core hole is provided with a guide hole and a valve stem to match. How to ensure the concentricity and convenient disassembly and assembly

1, the concentricity of the valve stem and valve stem can only be ensured by the guide hole. The function of the thread is only fixed. So the surface and size precision of the 12 guide hole is very important, in the end of 4 the end of wire and drill hole with reamer reaming to ensure accuracy to.2, the coordination of the guide hole can only be used with clearance clearance with higher accuracy.3, good for 4 holes weaken the bearing capacity of shaft, locking with the cone end set screw.4, the thread of the drawing did not draw thread, the suspension line needs to be filled. Do not use M12 for thread. Use M105, the stem should be milled out of a flat, easy wrench wrench stem

Q:Where exactly is the stem seal on top of the ice cream machine?

The ice cream ring of a single ice cream machine usually has two, and the ice cream ring of the three ice cream machine usually has 8.

Q:Ball valve stem 90 degrees milling flat, how to process?

Batch processing:1 use special clamps and vertical clamps2 machine tools: horizontal milling machine3 cutter: