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Butterfly Valve with Plastic Handle Made in China on Good Sale

Butterfly Valve Plastic Handle Made in China on Hot Sale

Butterfly Valve with Plastic Handle Made in China

Butterfly Valve with Good Quality Made in China

Butterfly Valve with Good Quality with Plastic Handle

Butterfly Valve Stainless Steel Threaded Directional on Sale Made in China

Butterfly Valve Made in China on Hot Sale Good Quality

Butterfly Valve Steel Threaded Directional with Plastic Handle

Butterfly Valve Stainless Steel Threaded Directional on Sale

FAQ

How are the types of valves classified?

Pneumatic and hydraulic valvesPneumatic valve and hydraulic pressure based on a certain air, water or oil as the power source, using the cylinder (or cylinder) and the movement of the piston to drive the valve, the general pneumatic air pressure is less than 0.8MPa, the hydraulic or hydraulic pressure is 2.5MPa~25MPa. Such as used to drive diaphragm valves; rotary gas and liquid drives are used to drive ball valves, butterfly valves, or plug valves. The driving force of the hydraulic device is large, and it is suitable for driving large diameter valves. If used for driving plug valves, ball valves and butterfly valves, the reciprocating motion of the piston must be turned into a rotary motion.

Which valve can play a good regulatory role?

A wide range of valves, the function is different, although like conventional butterfly valve, ball valve can play a regulatory role, but their role is not linear, so if you need to adjust the precision of the valve, it is best to select the control valve.

What are the key valve enterprises in China? Mainly in those areas?

This does not say, as if no one statistics! But you can check them on some big valve platforms, and there should be some statistics...

How about leaking water pipe valve?

1, if it is household valveA, the valve and pipe connections at the leakage, in the connection, do not rub tape (the best counter clockwise direction, so that when the valve is connected, the more twisted the more tight) ;B, if the valve itself in the leak, there are ways, it is necessary to open the valve, in which to add sealed or O ring, but it is recommended to replace a more convenient.2, if it is industrial valvesA, industrial valves leaking, if not the valve itself in the leak, then in the valve and pipe connections to join the sealing ring,B, if the valve itself is leaking, it is best to return to the manufacturer for maintenance, if not convenient, then only the manufacturers to come here for maintenance.

What does the J41Y-100I valve type mean?

J41Y-100I flange type chrome molybdenum steel valve forgingJ represents the cut-off valve, 4 (flange) on behalf of his connections, 1 (straight) on behalf of his structure, Y (seal) on behalf of his seat sealing surface or liner material code, 100 is the nominal pressure value, I (chrome molybdenum steel) is the code of the body material

How to identify the good or bad of the valve, without pressure test and instrument?

First, the appearance, two according to the standard to see flange thickness, outer circle, wall thickness and other dimensions are standard, 3 see details.

What's the difference between a valve and a valve?

In fact, the difference is that a set of valves, including two flanges, bolts, flange pad belongs to a set. A valve just doesn't carry those things.

How big valves are used in the DN90 pipeline?

DN is the nominal diameter, only DN80, DN100.It is estimated that your pipe is outside diameter 89mm, that is DN80, that is to choose DN80 valve.