Q:such as electrical feedback, the detailed symbol of the general hydraulic check valve, and the detailed symbols of the throttle valve?,There are four - way servo valve, four - way proportional valve. Why do they add a horizontal line on the valve body, do not use it?What do you mean by the long horizontal line up and down?

A long horizontal line indicates that the spool of the valve has any intermediate positionFor example, three ordinary valve, and only in two extreme positions, not in the spool from the three position to stay. But drew a horizontal line valve, spool at any position between about two points can stay, the specific location is determined by the control pressure at both ends of the spool or the control current.

Q:My input is simplified, but also the beginning of a simplified word, but after colleagues used my computer into traditional, I used in the English switch, every time a English from English switching into traditional, simplified and traditional state change trouble back and forth, a direct hit is there any way to get a simplified.

Should be the input method settings problem, I do not know what you use input methodIf it is QQ pinyin or Sogou, in the thesaurus management there, select simplified mode

Q:How many kilometers can the BMW 7 Series gearbox change after the valve body is changed?

The body is for new or scrap, scrap the pure scrap or repair, this is not good.No problem has occurred with our repaired BMW transmission valve body.

Q:Ball valve body generally choose what material?

Plastic valve (nylon) maximum use temperature of 100 degreesPlastic valves (chlorinated polyether), the highest use temperature of 100 degreesPlastic valve (PVC), the highest use temperature of 60 degreesPlastic valves (poly three CFC) -60 to 120 DEG CPlastic valves (PTFE) -180 ~ 150 DEG CPlastic valve (natural rubber diaphragm valve), the highest use temperature of 60 degreesPlastic valve (Ding Jing rubber, neoprene diaphragm valve), the highest use temperature of 80 degreesPlastic valve (fluorine rubber diaphragm valve), the highest use temperature of 200 degrees

Q:Valve body material representation

Austenitic stainless steel 7. austenitic stainless steel containing about 18% chromium and 8% nickel. 18-8 austenitic stainless steel is often used as a valve body and valve cover material under high temperature and too low and very strong corrosion conditions. With 18-8 stainless steel as substrate, adding molybdenum and slightly increasing nickel content, essentially increase the corrosion resistance. Valves made of this steel can be applied to a wide range of chemicals, such as acetic acid, nitric acid, alkali, bleach, food, juice, carbonic acid, tanning liquid, and many other chemicals.In order to apply the high temperature range and further change the composition of the material, the addition of niobium into this stainless steel is known as 18-10-Nb and the temperature can be applied to 800 degrees centigrade.Austenitic stainless steel is usually used at very low temperatures and will not become brittle, so valves made of such materials (such as 18-8 and 18-10-3Mo) are suitable for low temperature work. For example, liquid gases are transported, such as natural gas, methane, oxygen and nitrogen gas.Valve suitable for corrosive medium between working temperature between 196~600 and C. Austenitic stainless steel is also an ideal cryogenic valve material.8 "Monel alloy Monel" is a kind of very good corrosion resistance of high nickel - copper alloy. This material is often used in valves conveying alkali, salt solutions, food, and many gas free acids, especially sulphuric acid and hydrofluoric acid. "Monel alloy" is very suitable for steam, water and marine environment. Mainly used in valves containing fluorine chlorate medium.

Q:How to distinguish the solenoid valve on the automatic transmission valve body?

Solenoid valve has an oil solenoid valve, shift solenoid valve, locking solenoid valve, and so on

Q:How to distinguish the number of sink and the number of the valve core and valve body of the reversing valve?

Spool and valve body, with clearance of 0.008 mm, 0.012 mm. 0.2 surface finish elliptic taper less than or equal to 0.005 mm less than or equal to 0.005 mm

Q:Valve model preparation standard example valve body code gray cast iron valve body why omitted?

3.7.5 nominal pressure is greater than or equal to 2.5MPa carbon steel valve body material code, in the model preparation will be omitted.

Q:Automatic wave box a3af4 valve price

Replacement spool box price is relatively high, can now be repaired, repair will be more durable.Gearbox specific failure, you can according to the failure of the maintenance program

Q:I would like to ask whether this large body casting do radiographic examination, if not how to detect internal defects in the body. If the shell strength test can detect sand holes and other defects not? Class is 150LB.

See general valves used in site is important, take what kind of medium.150 pounds of pressure is low, estimated to be not what important parts, generally do not need to do testing, the testing cost is not low.