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KST-L-Threaded Rubber Joint

KST-L-Threaded Rubber Joint

KST-L threaded rubber joint
KST-L threaded rubber joint, also known as multi-ball thread flexible rubber joint, is a pipe joint with high elasticity, high air tightness, medium resistance and weather resistance. The threaded rubber soft joint utilizes rubber elasticity, high air tightness, medium resistance, weather resistance and radiation resistance. It is compounded with a high-strength, cold-hot and stable polyester cord fabric. It is vulcanized by high pressure and high temperature mold. The internal density is high, it can withstand high pressure, and the elastic deformation effect is good. Reduce vibration, reduce noise, good flexibility and easy to use.
[product alias]: flexible rubber joint, threaded rubber soft joint, shock absorber, shock absorber throat, threaded soft joint, threaded rubber flexible joint, threaded rubber pipe joint, etc.
[product pressure]: 1.0MPa-1.6MPa
[product specifications]: [DN15mm-DN80mm]
[Product Certification]: ISO9001-2008
[Scope of application]: [acid, alkali, corrosion, oil, hot water, cold water, compressed air, compressed natural gas, etc.]
[product material]: the sphere is natural rubber, the flange is carbon steel, stainless steel
KST-L threaded rubber joint ball is composed of inner rubber layer, reinforcing layer with multi-layer scraping nylon cord fabric and rubber layer compounded with outer rubber layer. The rubber materials used are different depending on the medium, such as natural rubber, styrene-butadiene rubber, butyl rubber, nitrile rubber, EPDM rubber, neoprene rubber, silicone rubber, fluorine rubber, and the like. They have the functions of heat resistance, acid and alkali resistance, corrosion resistance, wear resistance and oil resistance.
Product use: The connection of threaded rubber joints with pumps and valves is especially suitable for pipes with large vibration and frequent changes in heat and cold.
Applicable medium: seawater, fresh water, hot and cold water, drinking water, domestic sewage, crude oil, fuel oil, lubricating oil, refined oil, air, gas, steam and granular powder.
Product application range: Because Gongyi Xinli KST-L threaded rubber joint has good comprehensive performance, it is mainly used for lifting and conveying raw water and sewage, water supply and cooling circulating water of thermal power plant, metallurgical industry, condensed water, chemical industry Pipeline transportation of chemicals, cooling in the petrochemical industry, dilution and flexible connections between long and short pipelines in other industries. Because rubber has high wear resistance, it is also suitable for the transportation of granular and powdery and vapor in all industries.
Technical Parameters
序号 No. 部位 Part 材料 Material
1 主体 Body 天然橡胶(NR)、氯丁橡胶(CR)、丁基橡胶(IIR)、丁腈橡胶(NBR)、氟橡胶(FKM)、三元乙丙橡胶(EPDM)
2 内、外衬 Inner & Outer Rubber 天然橡胶(NR) 氯丁橡胶(CR)丁基橡胶(IIR) 丁腈橡胶(NBR)氟橡胶(FKM)三元乙丙橡胶(EPDM)聚四氟乙烯(PTFE)
3 主体骨架 Body Carcass 尼龙帘布 Nylon cord fabric
4 增压环 Reinforcing Ring 多股镀铜钢丝 Multi-strand coppering steel wire
5 螺纹活接头 threaded union rubber joint 铸造、锻造碳钢 Cast and forged carbon steel(Q235)、不锈钢 Stainless steel(201、304、316、321)、塑料 Plastic(CPVC、PVDF、PPH、UPVC、RPP)
项目Item |型号Medol KST-L-1 KST-L-2 A、如介质油,酸碱物质 
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
工作压力MpaWoring pressure 1.0(10) 1.6(16)
爆破压力Mpa Burst Pressure 2.0(20) 3.0(30)
真空度 Kpa Vacuum 53.3(400) 86.7(650)
适用温度℃Applicable Temperature -20℃~+115℃(特殊可达-30℃~+250℃)-20℃~+115℃(-30℃~+250℃ under special conditions)
适用介质Applicable Medium 空气、压缩空气、水、海水、热水、油、酸、碱等Air, compressed air, water, sea water, oil, acid, alkali, etc.
注:主要零件材料同KXT型 Note: the materials of main parts are the same with those of KXT type
Nominal Diameter
Axial displacement mm
Haorizontal isplacement mm
Angular deflection(a1+a2)°


A型 B型 伸长Extension 压缩Compression
15 0.5 180 200 5~6 22 22 45
20 0.75 200 200 5~6 22 22 45
25 1 210 200 5~6 22 22 45
32 1.25 210 200 5~6 22 22 45
40 1.5 220 200 5~6 22 22 45
50 2 220 220 5~6 22 22 45
65 2.5 240 240 5~6 22 22 45
80 3 285 285 5~6 22 22 45
Notes:1. For OEM orders with special requirement, threaded unions should be made according to customers' drawings. Thread standard can be ISO, ASME, BS, JIS, etc. Material of rubber body can be NR natural rubber, EPDM, Neoprene, IIR butyl rubber, NBR Buna-N, FKM, etc.