Q:The customer sent an inquiry sheet, in which check valve DE50, balance valve DE25, stop valve DE75, and I want to know what de stands for, because the price of plastic and cast iron is different. What does de usually mean in the industry?

No, DE is DG, and DG stands for nominal diameter of valve

Q:What's the difference between valves and valves without valves?

The advantage of carrying valves and venting valves is that they control the amount of exhaust and prevent other fluids from flowing out.

Q:Is the valve clockwise?

The valve clockwise rotation of the handwheel is to close the valve, counter clockwise direction is to open the valve, the number above said valve opening rotating the handwheel clockwise along the colonel, to the above number 0 corresponding pointer is completely closed; in counter clockwise direction, to a maximum of 5 numbers above corresponding pointer, is the valve open to the largest degree.

Q:Is there any difference between the valve and the water valve?

It doesn't make any difference. The valve can pass through the water or the oil

Q:According to the original valve installed on it, but never demolished, I am afraid to force over, will not be broken? The old valve, that part of the remaining three tubes tight.

Look, the valve you bought looks like PVC hot melt.. If the old valve and the elbow must be rejected with a hacksaw, hot melt and buy a new elbow and PVC section pipe for hot melt machine welding. From the picture didn't see traces of the thread,

Q:Pump, valve, these belong to the material?

Pumps, valves are electromechanical equipment, belonging to a class of hardware fittings, but not material!

Q:What does the "XV" valve mean?

XV:X said V is plug valve, said valve body material is chrome molybdenum vanadium steel.

Q:Name: valve actuatorFunction: control valve switch by controlling air flow sizeIntended classification commodity code: 8412310090 (other linear acting pneumatic power unit, pressure cylinder)Shanghai Pudong Airport customs change classification: 84123900 (other pneumatic power unit)Commodity code information given by China Customs official network: 8412310090 (actuator, valve parts, valve actuation, pneumatic)Our goods encoding 8412310090 is classified to the Shanghai Pudong Airport customs dismissed, there are no friends of this commodity encoding on the official website of the detailed specifications defined, I Secretary in accordance with the valve function into 8412310090 encoding. Thank you

The boring actuator, that is, the pneumatic valve actuator, is described in the customs notesPneumatic valve actuator (three) separately presented. This device is equipped with a piston metal enclosure, linear motion of compressed gas generated by a needle perpendicular to the piston rod into the rotary motion, in order to control plug valve or other device with a rotary deviceSo the Shanghai customs will bring you the list backIn fact, the most important point of distinction or the actuator is pneumatic energy conversion in what form movement of the mechanical energy output, if it is a straight reciprocating, 84123100 is correct, if not belonging to the rotary linear motion, or radians, 841239 correct

Q:Can the angle valve of York central air conditioner be replaced by other valves?

Definitely. But I want you to tell me what you're doing, or give me a picture. I can give you some advice

Q:What does the whole copper valve mean?

The whole valve is made of copper material. In addition to the ceramic core.