Stainless Steel Bellow Flexible Metal Vacuum Pipe For High Quality

china factory price 201 304 metal stainless steel bellows

Axial internal pressure type corrugated compensator, or axial internally pressurized expansion joint is a kind of corrugated compensator. It is an equipment to compensate dimensional change caused by thermal expansion or mechanical vibration of pipeline/conduit/vessel through corrugated compensator's elastic component. Based on above, it can decrease the deforming stress on pipeline and increase service life of pipeline.

Structural material: The corrugated compensator can be made of metal and nonmetal. Usually, the material of metal one include austenitic stainless steel, corrosion resistant alloy & etc. while nonmetal one include PTFE, rubber and composite material.

Wall thickness: Refer to the wall thickness, there are thick-wall corrugated compensator and thin-wall corrugated compensator. The thick one is mostly used for pressure vessel to compensate vessel's own thermal deformation. In view of its little compensation dosage, only 1~2 waves needed with wall thickness in 3~22mm generally. For the thin one, corrugated compensator is used in the flexible part of pipeline. Its monolayer thickness is less than 3mm(The thickness of most stainless steel is 0.2~3mm). Since corrugated compensator used in pipeline requires compensation dosage as much as possible, wall thickness should be reduced in max to get higher flexibility under premise of satisfying pressure-bearing. Considering environmental corrosion, most corrugated compensator are made of stainless steel. If higher pressure-bearing is requested, thin wall multilayer stainless steel structure could be better.

Number of layer: According to the layer, corrugated compensator can be divided into single-ply bellows and multi-ply bellows. The manufacture of single-ply bellows is simple with low cost. It is often used in the condition of dead load together with displacement compensation. On the premise of satisfying design of pressure-bearing, compensation dosage, rigidity and fatigue life, single-ply bellows has better competitiveness. Multi-ply bellows(often more than 2 layers) are commonly used in crucial pipeline in the condition of alternating load. Compared with single-ply bellows, multi-ply one has less rigidity and better fatigue resistance under same pressure bearing.

Structure: Corrugated compensator also can be divided into two classes of simplex and complex type due to different structure. Both of them could weld draw rod if required. Draw rod will weaken the axial thrust caused by internal pressure in pipeline, while no such effect if no draw rod.

Connection type: Corrugated compensator have two kinds of connection type, welded connection & flange connection. 

************************************      Can be customized      ******************************

Product display

Stainless steel vacuum hose  KF are suitable for all kinds of low vacuum and high vacuum hose connection, it used to connect the vacuum pump vacuum bellows can also slow down the vacuum pump operation equipment vibration generated by the impact. The  connection  of  Stainless steel vacuum hose  KF  is connected to two pieces of the flange of the middle through the center circle + aprons (stent) seal, flange cylindrical end through clamp lock connection, this connection is  a safe and efficient way.It make the connection between vacuum tube and vacuum equipment easier and more efficient.

Show details

        My company produces two kinds of  hose , one is molding corrugated pipe, belongs to the vacuum hose,it is flexible but incompressible, the other can be flexible and compressible. -corrugated pipe material: stainless steel 304S. S., 316LS.S.

        In addition to the standard size of  the Stainless steel vacuum hose KF, a larger size or special size vacuum bellows can be provided.The details can be called or emailed to our sales commissioner.

Application scenario

Our factory company production all kinds of hydraulic hose, Composite hose, rubber hose, carbon steel stainless steel quick connectors, hose fittings, machine, etc., high quality, cheap. Welcome to click the picture to our store to buy.

Our service

♦  OEM Manufacturing welcome: Product, Package

♦  We provide sample orders

♦  We will reply you for your inquiry in 24 hours

♦  After sending, we will track the products for you once every two days, until you get the products

♦  When you get the goods, have any questions, we will provide the best quality service

Packaging
♦  Packages we are now using, high quality OPP bags+Carton. (OEM is welcomed )

Shipping
♦  Pre-order negotiation, including packages, pictures of products

♦  PI confirmation, including specifications, prices, payment account, shipping cost & agent etc

♦  Payment confirmation

♦  Shipping arrangement, packages will be under strict inspection

♦  Shippments will be made officially, and customers be informed

1. What is your terms of packing?

— — Generally, we pack our goods in neutral white boxes and brown cartons. If you have legally registered patent, we can pack the goods in your branded boxes after getting your authorization letters.

2. What is your terms of payment?

— — T/T 30% as deposit, and 70% before delivery. We'll show you the photos of the products and packages before you pay the balance.

3. What is your terms of delivery?

— — EXW, FOB, CFR, CIF, DDU.

4. How about your delivery time?

— — Generally, it will take 30 to 60 days after receiving your advance payment. The specific delivery time depends on the items and the quantity of your order.

5. Can you produce according to the samples?

— — Yes, we can produce by your samples or technical drawings. We can build the molds and fixtures.

6. What is your sample policy?

— — We can supply the sample if we have ready parts in stock, but the customers have to pay the sample cost and the courier cost.

7: How do you make our business long-term and good relationship?

— — We keep good quality and competitive price to ensure our customers benefit ; We respect every customer as our friend and we sincerely do business and make friends with them, no matter where they come from.