Author: Site Editor Publish Time: 2020-08-22 Origin: Site
Ear hose clamps is a kind of hose clamp that is widely used in automobiles, home appliances, and machinery to fix hoses and joints so that gas or liquid can be safely transmitted without leakage.
In order to obtain a perfect clamping effect, the ear hose clamp must be clamped correctly.
Choose the correct size of ear hose clamps, ear clamps should be slightly larger than the hose. The recommended selection method is: the middle value of the clamping range of ear clamps is the outer diameter value of the hose.
Preparation tools: pliers or pneumatic pliers, electronic pliers. Stainless steel single ear pliers need to be used with pliers. Single ear pliers are special tools used to install and remove pliers. They are made of high-quality carbon tool steel and have been heat-treated. The fixture configuration is very important for the correct use of the fixture and to ensure sealing and tightening. Single ear pliers are mainly divided into flat nose pliers and side nose pliers for convenient use. Pneumatic clamps are suitable for mass installation, and the clamping force is constant.
Before installation, fix the ear hose clamps to the place where the hose is installed, and place it in the place where the joint is connected.
It is recommended to use pneumatic pliers or electronic pliers. Make sure to use constant force to clamp the ear of the ear hose clamp. Do not over-squeeze it, which may cause deformation and expansion of the ear hose clamp. Choose the appropriate manual pliers, it is best to use No. 55 steel or above to ensure that the jaws will not be deformed during use.
Set the jaws with the base of the ear of the clamp, and then clamp the clamp step by step. Be careful not to apply pressure twice, and do not touch the sides of your ears after clamping. Since the single ear clip is clamped by the plastic deformation of the metal, the amount of deformation cannot be too small. After clamping, you can see with your eyes and push to judge preliminary qualifications.
Note: The use of multiple ear hose clamps to connect hoses in series requires attention to maintain a constant clamping force. Maintain a uniform sealing effect.
Ear hose clamps cannot be reused and should be discarded after unloading.
In addition to understanding how to install ear hose clamps, we should understand the structure and characteristics of ear throat clamps. Depending on the specific type, the operation details during installation will also be different.
Ear hose clamps are different from other types of hose clamps in that they are not tightened by the principle of screw rotation to reduce the inner diameter. The common type of ear clamps is cast at one time and is a closed-loop. One end of which protrudes is single ear clamps, and the two ends of which protrude are double ear clip also named 2 ear hose clamp. Clamp the bottom of the “ear” of the ear hose clamp with pliers to reduce the diameter of the ear hose clamp to achieve the purpose of tightening. Single ear clamps can also be divided into adjustable stepless hose clamps and common types of non-adjustable ear clamps. Then the ear hose clamp is not tightened by screws, so how to remove the ear hose clamp, please refer to the article: How to remove ear clamps?
The single ear hose clamp is very simple, with only one ear, a one-time stamping ear hose clamp, suitable for very small hoses. The ear have a dimple design to ensure that the ear will lose their fastening force during installation and clamping, and can effectively resist the impact of thermal expansion and contraction after clamping. Since there is no bolt structure, the single-ear hose clamp can be used for very small hoses.
Single-ear clamps are also called stainless steel single ear stepless hose clamps. The "infinite" means that there are no protrusions and gaps in the inner ring of the clamp. The infinite design realizes uniform compression on the surface of the pipe fittings and a 360° sealing guarantee.
The standard series of single ear stepless clampsare suitable for the connection of general hoses and hard pipes.
Stepless ear clamps add more details than a single ear clip. Continuing the advantages of the ear-throat hoop, an interlock is added to the steel belt to maintain a uniform force on the hose. Before the installation is closed, the interlocking structure can also be opened for radial installation.
The dimple of the ear makes the clamped "ear" a spring that can be fine-tuned. which can not only increase the tightening force but also withstand the change in the diameter of the hose caused by thermal expansion and contraction, which has a compensation effect. When the pipe meets the thermal expansion and contraction of the material or the influence of mechanical vibration, it can increase the clamping force of the clamp or have an adjustment effect similar to a spring. To ensure effective and continuous clamping action. Stepless ear clamps have a stronger fastening force and a wider application range.
The wave-shaped tolerance compensation sections are integrated into the clamping band. If the deviation between the tolerance and the nominal diameter during connection exceeds the standard clamping range of the ear, the function of the tolerance compensation section will be very useful.
Double ear clip (2 ear hose clamp)
The double ear clip has two ears and no dimples in both ears. Compared with a single ear clamp, it has a larger clamping range. One-time stamping, fully sealed structure. Because the 2 ear hose clamp has two ears, when installing the 2 ear hose clamp, first clamp one ear, and then apply a clamping force to the second ear. At this time, the first clamp is often caused by the reaction effect of the force. The tight ears are opened a little bit. At this time, for a tight sealing effect, it is necessary to perform a second clamping operation on the first ear. But it should be noted that the secondary clamping force cannot be applied.
Therefore, the quality of the clamp is the prerequisite, and the correct use is the most important thing! Generally, in the initial product trial installation and product development, when the amount is not large, manual calipers are used for manual installation, so how does manual installation count? What about a qualified installation?
Ear hose clamp has the advantages of easy installation and tamper-proof. The single-ear hose clamp is suitable for mini hoses, and the double-ear hose clamp has a larger clamping range than the single-ear hose clamp. The stepless ear clamps have an interlocking structure for better clamping. Different types of ear hose clamp need to pay attention to their differences when installing. Before installation, choose a clamp with a suitable clamping range. The operating skills need to maintain a constant force. Therefore, we recommend electric or pneumatic clamp tools. Pay attention to the operation to prevent the ear clamp from deforming and expanding and failing. Do not apply pressure twice.