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Product Description

KF/CF/LF flange high vacuum hydraulic steel bellow expansion joint 

KF/CF/LF flange high vacuum hydraulic steel bellow expansion joint is a high quality flexible equipment in the modern industrial pipeline. It consist of convolution, braid, fittings and flange. Inner tube is spiral or annular stainless steel bellow, braid is made by stainless steel wire mesh. The joint or flange is matched with pipe flanges. KF/CF/LF flange high vacuum hydraulic steel bellow expansion joint has anti-corrosion, anti-high temperature, anti-low temperature, light weight, small volume, good flexibility and other features, flexible hose is used in aviation,oil,chemistry,metallurgy,electricity,paper making,medicine,food,wood,tobacco,transportation.

Structure:

It is made of stainless steel corrugated pipe outside a layer or multilayer wire or steel nets, both ends with joint or, Fran head, used for conveying the flexible components of various kinds of medium.

Feature:

(1) Vacuum bellows are 100% leak tested.  

(2) Length : As customers requiry

(3) Bellows & Flange Materials : SUS 304/316/316L

(4) Temperature : -200°C ~ 800°C

(5) Leakage Rate : <1.0X10-9Pa·m3/s  

(6) Port size: DN16-DN250

Larger or special size available upon request .

Application:

Resistance to corrosion, high temperature resistant, low temperature (196 ℃ ~ + 420 ℃), light weight, small volume, good flexibility. The hose is widely used in aviation, aerospace, petroleum, chemical industry, metallurgy, electric power, papermaking, wood, textile, construction, medicine, food, tobacco, transportation and other industries.

Joint: the first is the role of joint network set and corrugated pipe connection for an organic whole, at the same time, the joint and metal hose and hose or other metal pipe fittings, equipment connected components. It guarantees medium in the pipeline system to work properly. Connecting material is usually the same as the bellows, net sets of materials, mainly stainless steel. In order to reduce the production cost, some larger sizes of metal hose in forhandling corrosive is not strong or non-corrosive medium, joint available carbon steel production; For the work of corrosive medium of metal hose connector, if the design take corresponding measures to avoid contact with the media, can also be used to produce carbon steel. The structure of joint can be broadly divided into spiral, flange plate and fast type three categories:

1. Thread type, size of 50 mm below the metal hose connector, in the case of a work under high pressure, the more is given priority to with screw-type, when screw thread two joint work closely on the inner and outer taper surface, realize the seal. Cone Angle is 60 degrees commonly, also useful to 74 degrees. The sealing structure is good, but when installation, must ensure the concentricity of the two docking. Often see in order to solve practical engineering problems such as repeated disassembly and assembly, and not easy to work, can also be joint design into a cone and the ball head.

2.Flange disc: size for more than 25 mm metal hose connector, in the case of the general working under pressure, give priority to with flange disc, it in the form of mortise with seal. Can turn along the radial direction, also can live along the axial sliding flange bolt in under the action of tension between two bodies. The structure of sealing performance is good, but the processing difficulty is big, seal face easy bruising. In need quick discharge of special occasions, solid can be delimited on the bolt through the hole, made fast discharge flange.

3. Delivery: size is 100 mm below the joint of various metal hose in require the use of the rapid loading and unloading conditions, general use type fast. It commonly used fluorine plastic or special rubber "O" ring seal. When hand carry certain Angle of multi-start claw refers to be lock; "O" ring is pressed, the more tight, the better the performance of the seal. The structure under fire, war and other must be fast loading quick-release occasions are best. In a few seconds of time, do not need with any special tools, can be docked or open a set of joints.

Detail shows:

Packaging & Shipping

Hydraulic steel bellow package is plastic film and wooden case

Company Information

Why us:

Henan Liwei Industry Co.,Ltd. is a leading manufacturer of elastic component in China. We have:

(1) Strong R&D strength;

(2) Strict Quality Control System;

(3) Perfect Test System;

(4) Professional After-sale Service Team;

(5) OEM Service.

We are your qualified supplier and reliable friends!

Thanks for your attention. For more information, please feel free to contact me.

More about Henan Liwei:

http://www.bellows-expansionjoint.com 

http://www.liweipipeline.com

http://www.steel-bellows.com