Cixi Shuangying Pipe & Valve Co., Ltd.
Main products:Valve,Flange,Steel Pipe,Strainer
Contact Us
  • Contact Person : Mr. Wu Leo
  • Company Name : Cixi Shuangying Pipe & Valve Co., Ltd.
  • Tel : 86-574-63032281
  • Fax : 86-574-63880543
  • Address : Zhejiang,Cixi,No.1818, SunTangBei Road, Cixi city
  • Country/Region : China
  • Zip : 315300

composite hose

composite hose
Product Detailed
Size: 1" to 10" Working Pressure : 6BAR to 25 BAR Working Temperature: -196 to 230 degrees centigrade

Product Description

The size of composite hose is from 1 inch to 10 inches, the working pressure is from 6BAR to 25 BAR and the working temperature is from -196°C to 230°C. Adopting multiple kinds of polymer seal and barrier materials, composite hose is able to transfer high-risk materials under extremely severe condition.

The hose boy consists of multi layers of functional polymer films and synthetic fiber fabric reinforced layers and is fastened by inner-layer spiral metal wire and outer-layer spiral metal wire.Inner spiral steel wire: According to the characteristic of the medium delivered by the hose, stainless steel, hot galvanized steel, aluminum steel, polypropylene or Teflon clad steel wire is adopted.Outer spiral steel wire: Hot galvanized steel wire or stainless steel wire is generally adopted.

Inside liner: It provides the performance of chemical medicine corrosion resistance and chemical liquid barrier property for the hose, playing a key role in ensuring hose quality. According to the characteristic of the delivered medium, more than ten functional materials such as modified Teflon (PTFE), nylon and crosslinked polyethylene are generally adopted. By cooperating with international famous material suppliers, has developed multiple kinds of functional materials. Through compounding by exclusive technology, it makes hose which has excellent fatigue resistance, chemical liquid medicine corrosion resistance, near-zero permeability of chemical liquid medicine and high safety.

Hose Characteristics hose, with light weight and high toughness, is made by compounding multiple layers of high polymer materials of different materials and characteristics and synthetic fiber, and is reinforced by inner-layer spiral metal wire and outer-layer spiral metal wire. The structure is similar to the structure of common steel wire and has both high strength and softness. The adopted materials have high resistance to most corrosive chemicals and hydrocarbon compounds, so that hose can easily transfer gasoline, diesel oil, crude oil, and many kinds of chemical liquid. hose has the following advantages:

Light weight, easy transportation, small bending radius, soft hose body, high toughness, convenient use and flexibilityWide temperature application range, high-temperature and low-temperature resistance, aging resistance and no deformationCorrosion resistance, high stability, reliability and safety, and wide use rangeFlexural fatigue resistance and capability of substituting the traditional rubber hose and metal hoseBare inner spiral metal wire and specially-made inner layer, and reliable static escape performance

hose has numerous advantages such as chemical resistance, high safety and flexibility, handiness, easy transportation, high durability, etc., so that it is used for substituting the traditional rubber tube and metal hose in the fields of wharf, oil tanker, petrochemical storage, tanker, etc.

Static resistance

The contact and separation of two substances may generate static, and electric discharge phenomenon may happen and electric spark may be produced if the electrostatic charge accumulates to a certain degree. In the field of hazardous material transportation, the phenomenon is very dangerous and may cause disastrous accident, and special attention should be paid to the evaporation gas mixing flammable chemicals and air especially.

hose always prioritizes safety. In order to prevent static accident caused by electrostatic charge aggregation, has designed anti-static hose which has passed corresponding certification. With inner and outer bare metal wires and metal parts all connected, the hose has very good static escape performance and can effectively avoid electrostatic hazard.

Bending resistance

The multiple layers of composite structures are independent of each other, which is similar to the structure of steel wire rope and ensures both strength and softness. Supported by inner and outer spiral metal wires, the hose will not turn delaminated or crack under the condition of alternating bending. With fatigue resistance several times that of metal hose and rubber hose, it can completely substitute the traditional metal hose and rubber hose in certain special occasions with frequent movement.

Oil resistance

oil-resistant composite hose has tens of inner sealing layers and adopts well-chosen high-tech materials, so that it has reliable osmosis resistance and extremely low fuel absorption swelling performance. It is applicable to delivering petroleum products with the aromatic content of 100%. It has oil resistance superior to that of NBR rubber and can be used at high temperature. The conventional oil-resistant hose mainly uses modified polypropylene as the inner sealing layer and tens of materials such as nylon and polyester can be optionally used for special requirements.

Chemical corrosion resistancePOLYPROPYLENE

Modified polypropylene has excellent chemical stability and is inert to most acids, alkalis, salts and oxidants. For example, it is stable in 102°C strong phosphoric acid, hydrochloric acid, 40% sulfuric acid and other saline solutions and only changes in a small number of strong oxidizers such as fuming sulphuric acid. As nonpolar compound, POLYPROPYLENE is very stable in polar solvent. For example, it does not swell in alcohol, phenol, aldehyde, ketone and most carboxylic acids. POLYPROPYLENE has environmental stress cracking resistance better than that of PE and generates no stress crack in many solvents and detergents. POLYPROPYLENE has outstanding flexural fatigue resistance. The hinge made from it does not break down after 70 million times of folding and bending. POLYPROPYLENE also has good creep resistance.


The inner layer of the hose adopts PTFE, a fluoropolymer material. PTFE has PE’s chemical structure that all hydrogen atoms are completely replaced by fluorine atoms and the high polymer long-chain structure with the molecular weight of 2 million to 10.2 million. Fluorine atom has strong chemical bonding force and excellent chemical performance. Except fluoride, chlorine trifluoride and molten alkali metal, it has resistance to all other chemicals and is not influenced by various acids, alkalis, oxidants or organic solvents, boasting excellent chemical resistance. The experiment situations under various conditions:Chemical liquid absorption curve

Experimental conditions: 95 ° C for 51 days immersion

Usability standards <A A-B B-C X Y Availability In addition to all products other than the chloroform Chloroform No

Based on the practical application of chemical liquidsSlightly affected, but the choice of the foot according to the conditions of use can be used, in addition to the several chemical materials can be used in a solution of chloroform and chlorinated. 

Soaked in a wide range of chemical liquid weight change 

Soaking conditions:

The a 80-90 °C chemical liquid in the 336h, (using hydrochloric acid necessary to remain at room temperature)

Experimental data declaration:

The above experimental data are the detection result of hose inner layer sampling under the specified condition of laboratory and are just for reference. The actual use of hose may differ from the experiment result due to artificial factor or the influence of complex environment. When choosing hose, the corrosion resistance of metal parts should also be taken into consideration. Please contact our engineer if you use hose under specified environment.

Safety performance:

hose meets most strict national regulations and requirements. According to the requirements of standards such as ISO, BS, EN, IMO, BCH and TNCH, it reaches the burst pressure safety factor of 4:1, and some hoses reach the safety factor of 5:1. That is to say, the burst pressure of hose with the working pressure of 1.0Mpa is 4.0Mpa according to the safety factor of 4:1.

Safety Caution of PTFE

When the temperature of PTFE surpasses the normal use temperature (205°C-260°C), poisonous gases such as HF and COF2 will be generated. When using hose or dealing with related wastes, we should abide by local laws and regulations and related standards or ask professional staff or department for help.

composite hose

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