An overview of hydraulic quick couplings, what are the models of hydraulic quick couplings

Swivel joints, also known as rotary joints, are used to supply and discharge fluids under pressure or below atmospheric pressure from the fixed piping to the rotating parts of various mechanical devices without leakage. For example, it is necessary to supply steam, hot water, hot oil and other hot water used for heating, or cold water used for cooling, such as saltwater, ammonia, and freon, to a rotating roller or dryer; In addition, compressed air, working oil, etc., are supplied to rotating machines such as clutches and chucks that work through fluids.

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This kind of joint is a kind of joint that does not require the use of tools, and can realize the rapid assembly and disassembly of the pipeline, and it has two types of structure: open and closed at both ends and open at both ends.

The opening and closing quick couplings at both ends are composed of a joint body, a check valve spool, a jacket, a steel ball, a spring and a seal. There is a check valve in the inner cavity of the joint body, when the two joint bodies are separated, the check valve core stretches out under the action of their respective springs, and presses on the conical hole of the joint body, so that the passage is closed, and the oil in the pipe on both sides is closed in the pipe and cannot flow out; When the two joint bodies are connected, the two ejector rods of the front end of the check valve core collide, force the valve core to leave the conical hole of the joint body, make the oil in the pipe on both sides communicate, and the two joint bodies are locked with steel balls, and when working, the outer coat presses the steel balls in the U-shaped groove of the joint body under the action of the spring, so that the joint body is connected.

This joint is easy to disassemble, but the structure is more complex, and the local resistance loss is larger, so it is suitable for pipeline systems with oil and gas as the medium.

The difference between the open quick coupling at both ends and the open and closed type at both ends is that there is no one-way valve in the inner cavity of the joint, and when the two joint bodies are separated, the passage cannot be closed. One end of the coupling is connected to the hose by a three-flap hose coupling, and the coupling core of the hose coupling is inserted directly into the quick coupling.

Quick Coupler Coal improves excavator performance. After assembling the quick coupler, it can be connected to a variety of special tooling such as: bucket, ripper, hydraulic breaker, grab, ripper screen, hydraulic shears, etc.

There are many types of hydraulic quick couplings, including threaded, unthreaded, straight pipes, flanged pipes, pagoda heads, flared pipes, etc., all of which are matched with suitable quick couplings according to the specific requirements of users.

Factors such as pressure, skin flow requirements, material, high temperature resistance, and corrosion resistance all need to be considered. The comprehensive performance can be matched to give the user the most suitable hydraulic quick coupling model.

Quick couplings are suitable for combustible tubing.

What is a Quick Coupling? The official introduction is: a quick coupling is a kind of joint that can be connected or disconnected without tools.

In other words, the quick coupling is a direct link to the pipeline, and the connection and disconnection equipment between the pipe and the pipe are realized. There are many places where we use quick couplings in our daily lives, but many people don't pay attention to it. For example, the water pipes in the bathroom can't always be straight.

If it is bent, it will easily cause the water pipe to crack. In this case, we use a quick coupling to connect a new water pipe. The quick coupling is made directly into a curved shape.

So what are the types of quick couplings? Quick couplings are used in many industries, so the quick couplings in each industry are different. Quick couplings can be divided into:

Quick couplings for air, quick couplings for oxygen, fuel and gas, quick couplings for gases and liquids, quick couplings for hydraulic oil, quick couplings for inert gases, quick couplings for cooling water temperature oil, and semiconductor quick couplings.

Air quick couplings: mainly used for air piping, pneumatic tool accessories. Corresponding to its use, there are rich and diverse body raw materials, scales and equipment shapes.

Quick couplings for oxygen, fuel and gas: mainly used for general fuse piping, with the characteristics of large flow, durability and corrosion resistance. The main raw materials, scales and equipment shapes are rich and diverse.

Gas-liquid common quick couplings: Mainly used for ion cooling equipment piping, brewing equipment, cutting oil piping for work machines, and car washing machines. With a simple lever operation, liquids, gases, powders, etc. can be transported. The main raw materials, scales and equipment shapes are rich and diverse.

Quick couplings for hydraulic construction: mainly used in hydraulic equipment and construction machinery. The main raw material should be a metal that can resist oscillation and impact. The scales and shapes of the equipment are rich and diverse.

Quick couplings for inert gases: to be used for vacuum piping and compressor pressure tests. The sleeve and plug have built-in automatic opening and closing valves suitable for vacuum use, and the vacuum level can be maintained when the condition is separated.

Quick couplings for cooling water and oil: primarily for universal mold interfaces. Completely complete the simplification of the mold exchange operation, strengthen the anti-rust function, and have a variety of varieties.

Semiconductor quick connectors: mainly used in semiconductors, fluorine resin semiconductor production equipment and equipment. The main raw material should be corrosion-resistant metal or injection-molded fluororesin (PFA) all-resin products.

Quickly identify the type of stainless steel quick connector: stainless steel quick connector type: 1, type A:

One end is the arc joint stuck in the female connector, and the other end is the connecting thread with internal threads. 2. Type B: One end is a groove with two male heads for pulling ears, and one end is a thread connection with external threads.

3. Type C: One end is a groove with two male heads of the ear card, and the other end is a slub-shaped hose joint. 4. Type D:

One end is a groove with two tab male connectors, and the other end is a threaded connection with an internal thread. 5. E-type: one end is an arc joint stuck in the female connector, and the other end is a hose joint with a bamboo joint.

6. F type: one end is an arc joint stuck in the female connector, and the other end is a thread with an external thread connection. 7. DC type:

It is a groove with two male puller plugs, which can be snapped into the male arc of the cap plug. 8. DP type: It is an arc plug, also called an inner plug.

9. F-type flange: one section is the arc joint stuck in the female connector, and one end is the flange connected by the flange. 10. Type C with flange:

One end is a groove with two puller male connectors, and the other end is a flange with a flange connection.

What kind of model, these joints are standard, but there are too many types, quick connections, tees, internal and external teeth, and large and small heads, there are many, many more.

There are many models according to different uses. KZE is more commonly used in China, and more tables are used on oil pumps. Agricultural machinery is mostly used in ISO5675 series, construction machinery is more used in ISO16028 series, and high-pressure applications such as hydraulic jacks are generally imitation Parker 3000 series.

Fluid conveyance lines generally use imitation Parker 6100 series. There are many more, you can start by talking about what you use them for.

Pike, Ridong or anything went to check on them.

Hydraulic pipe joint is to connect different hydraulic components (pump, conveying pipeline, reversing valve, globe valve, hydraulic motor, hydraulic cylinder, and some auxiliary components, such as level gauge, thermometer, pressure gauge, etc.) to form a closed circuit hydraulic system, hydraulic pipe joint is a fitting in which the connection is played.

Hydraulic pipe joint is a detachable connector between oil pipe and oil pipe, oil pipe and hydraulic components, which should meet the requirements of convenient assembly and disassembly, reliable connection, reliable sealing, small dimensions, large oil capacity, small pressure loss, and good processing technology.

Hydraulic pipe joints are widely used in all corners of our lives, hydraulic pipe joints are mainly used in military industry, energy, petrochemical, electric power, ships, automobiles, rail transit, mining, metallurgy, steel mills, marine engineering, construction machinery and other industries in the hydraulic pipeline system, construction machinery is the most used hydraulic pipe joints in the place.

Hydraulic pipe fittings are mainly divided into two categories: hose fittings and rigid pipe fittings.

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1. When the joint is disconnected, the valve core will automatically close to prevent leakage.

2. After the joint is connected, the valve will be automatically opened, and the fluid will always be smooth within the rated working range.

3. The key components are induction hardened, so the durability is good.

4. A reliable ball mechanism combines the matching two halves.

5. The female socket and male plug are precision manufactured with solid bar stock.

6. This joint conforms to ISO7241-B standard.

You're talking about quick couplings, what about the models?

1.refers to the form of installation between the quick connector and the connector;

2.The national standard GB, non-national standard British standard, American standard, Japanese standard, and non-standard are made according to the designer's drawings, and you can judge what the standard is by looking at the model header.

3.Thread form, internal thread, external thread, coarse thread, fine thread, sealed, non-sealed, cylindrical thread, conical thread, etc., the diameter of the pipe I think should be the inner diameter of the hydraulic hose you are connected to.

4.The check valve is a valve body that only restricts the flow of liquid in one direction, and the straight-through check valve is just a structural form of the check valve, and I have never heard of the two-way valve.

5.Same as 1, the installation form is the form of installation on the workpiece, flange type? Threaded? The structural form refers to the structural form of the quick coupling itself.

If you plan to make your own quick connectors, put the middle diameter and wire diameter of the spring, as well as the stiffness, and customize it for the spring factory. The seal looks like a rubber ring, find a rubber manufacturer to customize, if the pressure is not high, you can use nitrile rubber.

The material, seal, medium, and pressure are all different.

Mind if the landlord asks for a professional, such as Intelli.

The hydraulic quick coupling is designed for special heavy loads, the female joint material is steel chrome plated, the lock sleeve of the male joint and the female joint are hardened, the pressure resistance and fatigue resistance are good, and the two-stage seal is adopted; Leak-free with safety self-locking.