Corrugated metal hose largely by the bellows

Corrugated metal hose pipe body, plays a role in flexible; nets play a strengthened role in shielding; joint plays a role in the connection. For different application requirements, the connection between them in different ways: Bellows, nets and welded joints in the form of three-part connection, called the welded; mechanical clamping connection form, called mechanical clamping type; In addition, there is combined with the above two methods, called hybrid.
      Nets: nets are a number of shares by the cross-cutting wire or metal tape several blossoms woven by a certain sequence, hose assembly set at a predetermined angle of the outer surface of the metal bellows, plays a role in strengthening and shielding. Nets not only share the metal hose in the axial, radial static load, still pulsating fluid flow along the pipe under the conditions of action to ensure the safe and reliable metal hose work, but also can ensure the corrugated hose is not directly part influenced by the relative friction, impact and other aspects of mechanical damage. Woven nets bellows, its strength can be increased ten times to several times. Maximum shielding capacity can reach 99.95%. Network sets the bellows material is generally the same material, but also to the two materials is used in combination. Only a layer of common metal hose nets; special occasions, there are also woven layers, three layers. According to the bellows diameter sizes and the different requirements, it is often a diameter of 0.3 to 0.8 mm in wire or thickness of 0.2 to 0.5 mm to produce the strip. 4 to 15 per wire, strip each tablet one. Currently, the production of steel mesh cover more than 24 stocks, 36 stocks, 48 ​​stocks, 64 stocks, large diameter of the bellows, and 96 shares, 120 shares and 144 shares. In addition to the main weaving nets parameters (wire) the number of shares, wire diameter, (strip) spindles, thickness, there are coverage, weaving away, weaving angle. They are all important decisions based on the performance of metal hose.
       Connector: The role of the first connector is connected nets with bellows as a whole, while another metal hose fittings and metal hoses or other fittings, devices coupled components. It ensures that the medium in the piping system to work properly. Fitting materials are usually the bellows, the same material nets, stainless steel-based multi. To reduce production costs, some of the larger diameter metal hose is not strong in conveying corrosive or non-corrosive media, the joint can be carbon steel; For corrosive media work in case of metal hose fittings, if the design to take appropriate measures to avoid contact with the medium can also be used to produce steel. Joint structure generally divided into spiral, flanged and fast style three categories: 1, Threaded: diameter is 50 mm below the metal hose connector to withstand high working pressure in the case, mostly threaded main thread when tightened after the two connectors on the inner and outer taper surface work closely together to achieve seal. Cone angle is generally 60 degrees, 74 degrees is also useful. The structure, good sealing, but the installation must ensure two countertop concentricity. In order to solve practical engineering often seen repeated demolition, installation and easy concentric and other issues, can also be designed as conical connector mating with the ball. 2, flanged: diameter of 25 mm above the metal hose joint when subjected to the normal working pressure in the case in the main flange disc, which in the form of tongue and groove sealing fit. Rotating a radial direction, but also axially slidable banjo fitting flange looper tension force of the fastening bolts to connect two bodies. This structure sealing performance is good, but difficult process, the sealing surface is easy to bruise. Quick release is required for special occasions, you can tighten the bolts through the holes cut open, made of quick-release flange. 3, courier formula: diameter of 100 mm below the various metal hose fittings, quick loading and unloading of the required conditions of use, generally use fast style. It is commonly used special fluorine plastic or rubber "O" ring seal. When moving the handle after a certain angle, the equivalent of fingers long thread is locked; "O" ring will be kept more tightly, the sealing performance is better. The structure in the fire, Battlefield, and other quick release must be quick occasion is most appropriate. Within a few seconds, without any special tools equipped with, you can open a group or butt joints.