Chhw Warwick Rubber joint Taking advantage of the advantages of rubber, such as elasticity, high air tightness, medium resistance, weather resistance and radiation resistance, polyester cord fabric with high strength and strong thermal and cold stability is selected and compounded with it, and then vulcanized by high pressure and high temperature mold. The rubber joint has the characteristics of high density, high pressure and good elastic deformation. The utility model has the functions of reducing sensation, reducing noise, good scalability and convenient use. Rubber joint is used for connection with pump and valve, fire-fighting equipment, pipeline with great sensation and frequent cold and hot change.
Item | specification and model medol KXT-Ⅰ KXT-Ⅱ KXT-Ⅲ A. Such as medium oil, acid and alkali, refrigerant, non freezing liquid material
B. There are special requirements for working temperature
C. Support customization of samples and drawings
D. To be explained when ordering
A. If media is oil, acid or alkali.
B. If special requirements for working temperature
C. If OEM orders with drawings or samples
D. Please Inform us about above when ordering
Working pressure 1.0(10) 1.6(16) 2.5(25)
MPA burst pressure 2.0(20) 3.0(30) 4.5(45)
Vacuum kPa vacuum 53.3(400) 86.7(650) 100(750)
Applicable temperature -20 ℃ ~ + 115 ℃ (special up to - 30 ℃ ~ + 250 ℃) - 20 ℃ ~ + 115 ℃ (- 30 ℃ ~ + 250 ℃ under special conditions)
Applicable medium
Note: Note: the materials of main parts are the same with those of KXT type

First of all, this paper introduces the common applicable media of rubber joint: sea water, fresh water, cold and hot water, drinking water, sewage, crude oil, fuel oil, lubricating oil, product oil, air, gas, steam and particle powder.
No Part Material
one Flange Cast and forged carbon steel (Q235), stainless steel (201, 304, 316, 321), plastic (CPVC, PVDF, PPH, UPVC, RPP)
two Inner rubber NR, NBR, IIR, Cr, FKM, EPDM and PTFE
three Reinforcing ring Multi strand copper plating steel wire
four Body carcas Nylon cord fabric
five Interior material outer rubber NR, NBR, Cr, IIR, FKM and EPDM

Huawei rubber flexible joint material


Chhw Huawei rubber flexible joint is made of independent rubber layer (selected brand raw material) and reinforcement material, which are vulcanized together after molding or molding.

With more than 35 kinds of rubber elastomers and the ability to further change properties through compounding, it may be a challenge for non chhw technicians to select the right rubber polymer to meet their requirements. And we will help our customers to choose the right materials.

Fabric reinforcement
Sphere structure usually uses high quality brand synthetic fibers, such as polyester, aramid. Fabric plies are impregnated with rubber or synthetic compounds to allow flexibility between fabric plies.

Metal reinforcement
The steel wire or solid wire rope is embedded in the matrix and used as the reinforcing member of the joint.

Carbon steel is standard. We can also provide galvanized or hot dip galvanized carbon steel, 304314316 stainless steel, duplex stainless steel, etc. Commonly used for GB standard kits, also according to en, ANSI, JIS, AWWA standards or any specific size of drilling flange.

Fabric reinforcement:
Nylon, polyester, aramid or aramid

Metal reinforced materials:
Steel wire or solid wire rope is embedded in the matrix and used as reinforcement for expansion joint.

Raw material classification: rubber soft joint ball is composed of rubber tube with inner rubber layer, reinforcement layer, multi-layer scratch nylon cord fabric and outer rubber layer. According to the different media, the selected rubber raw materials are also different, including natural rubber, styrene butadiene rubber, butyl rubber, nitrile rubber, ethylene propylene diene monomer, chloroprene rubber, silicone rubber, fluororubber and so on. It has heat resistance, acid resistance, alkali resistance, corrosion resistance, wear resistance, oil resistance and other functions.

Classification of rubber raw materials

Material name Code name Performance characteristics Operating temperature (℃) Main application fields
Natural rubber NR It has good wear resistance, high elasticity, breaking strength and elongation. However, it is easy to age in air and become sticky when heated. It is easy to expand and dissolve in mineral oil or gasoline. It is alkali resistant but not strong acid resistant. -50~70 It is commonly used as raw materials for making adhesive tape, hose and rubber strip, as well as for shock absorption parts, products used in automotive brake oil, ethanol and other liquids with hydrogen peroxide.
Nitrile rubber NBR It has good oil resistance, heat resistance, wear resistance, solvent resistance and high pressure oil resistance. But it is not suitable for polar solvents, such as ketones, ozone, nitrohydrocarbons, chloroform and so on. -40~120 It is widely used in oil tank, oil tank and hydraulic oil system.
Hydrogenated nitrile rubber HNBR Compared with NBR, NBR has better abrasion resistance, corrosion resistance, tensile resistance, tear resistance and compression deflection, and has good resistance under ozone, sunlight and other atmospheric conditions. However, it is not recommended to be used in alcohol, ester or aromatic solution. -40~150 It is commonly used in air conditioning and refrigeration industry, and widely used as the seal in R134a system. Automotive engine system seals.
silicon rubber SIL It has good heat resistance, cold resistance, ozone resistance and atmospheric aging resistance. It has good electrical insulation performance. The tensile strength and wear resistance of rubber are worse than that of general rubber and have no oil resistance. -55~250 It is commonly used in the seal or rubber parts used in the household appliance industry, the seal in the food machinery industry, or the seal on various articles in contact with human body.
EPDM rubber EPDM Weather resistance, aging resistance, ozone resistance, chemical stability are excellent, resistant to freon and a variety of refrigerants. -50~150 Commonly used in high temperature steam environment seals or parts of sanitary equipment and refrigerators and refrigeration equipment seals.
Fluororubber FKM Good high temperature resistance, chemical resistance, resistance to most oils and solvents (except ketones and esters). The cold resistance is poor. -20~220 It is commonly used in high temperature, chemical corrosion and oil resistant working environment. It is widely used in metallurgy, chemical industry, automobile, electric power and other industries.
butyl rubber IIR It is impermeable to most general gases, resistant to sunlight and ozone, and can be exposed to animal or vegetable oils or oxidizing chemicals. -55~100 It is commonly used to make rubber parts of chemical resistant and vacuum equipment.
Chloroprene rubber CR It has good elasticity, wear resistance and atmospheric aging resistance. It is not afraid of violent distortion and has flame resistance. The chemical properties are stable. -40~100 It is suitable for making all kinds of parts that directly contact with the atmosphere, sunlight and ozone; it is suitable for all kinds of fire-resistant and chemical resistant rubber products.
teflon PTFE Good chemical stability, heat and cold resistance, oil, water, steam, chemicals and other media; high mechanical strength, high pressure resistance, good wear resistance; low friction coefficient, good self lubrication. -55~260 It is widely used in metallurgy, petrochemical, engineering machinery, light industry machinery and other fields.
polyurethane PU High strength, excellent wear resistance, good oil and solvent resistance, especially for lubricating oil and fuel oil have good swelling resistance, good ozone resistance. But it is not resistant to high temperature. -45~110 It is used to manufacture reciprocating seals and seals in various wear-resistant and high-strength working conditions.
Perfluoro rubber FFKM It has excellent chemical resistance, high temperature resistance, heat resistance, chemical resistance, excellent air tightness and plasma resistance. However, it has poor low temperature resistance, high raw material price and difficult production and processing. -25~320 It is widely used in semiconductor, medical, military, aerospace and other fields.

Applicable industry / applicable pipeline

Water supply industry Thermal power engineering cement plant Paper mill
Chemical industry fire control Hydroelectric power generation Food industry
sewage disposal Medical pipeline Natural gas pipeline petroleum

Huawei water supply equipment Co., Ltd

Service hotline: 400-077-8988