VSSJA(AF) Field adaptable flange loose compensation coupling HDPE PVC pipes flange expansion sleeve dismantling joints

VSSJA(AF) flanged loose sleeve expansion joint

After the loose sleeve expansion joint is installed on the pipeline, tighten the nut elastic sealing ring, and make mutual inclination under the action of the nut gland to tightly press the outer ring of the pipe to seal and connect. When the temperature changes, the pipe can be freely expanded in the middle of the joint, when the foundation sinks, the pipe can be deflected, and ensure that the seal does not leak, so as to play the purpose of automatic compensation.

Flanged loose sleeve expansion joint is also called flanged loose sleeve compensation joint, flanged loose sleeve expansion joint. The flange loose sleeve expansion joint is composed of body, gland, sealing ring and fastener. It adopts the same sealing principle as the gland loose sleeve expansion joint. One end of the connection is flange connection, and the other end is socket connection, which is suitable for the connection of valves and other equipment and pipes. At the same time, the connection can compensate the axial displacement of the pipeline and a certain amount of deflection and eccentricity, so as to protect the valve and other equipment. The socket is also suitable for connecting with steel pipe, cast iron pipe, ductile iron pipe, PAC pipe, ABS pipe, etc.

The main materials of expansion joints are divided into:

QT-400 (ductile iron), Q235A (carbon steel), HT20 (gray iron), 1Cr18Ni9Ti (stainless steel).

Expansion joint standard:

Marine standard CBM1129-82, applicable to ship bilge, ballast, seawater, fire protection, deck washing and oil barging pipelines with temperatures not higher than 80°C, to compensate for the phenomenon of swelling and shrinking of pipelines.

Examples of tags:

The expansion joints of PN1.6 and DN125 are labeled as: Expansion joints 16125 CBM1129-82

Technical requirements:

1. The material of the sleeve and flange of the expansion joint is 20; Bolt material is 35; Brake screw material is 2CR13; Rubber ring material: the medium is oil butadiene rubber I-2, the medium is water neoprene rubber III-2.

2. In addition to the oil medium, the steel parts of the expansion joints for other pipelines are treated with hot zinc.

3. The general installation size is L1, and the value of L1 can be adjusted according to the purpose of the joint, but the maximum shall not exceed 1.5L1.

Flanged loose sleeve expansion joint VSSJA or AF, flanged loose sleeve expansion joint is composed of a body, a gland, a sealing ring and a fastener. The flange loose sleeve expansion joint adopts the same sealing principle as the gland loose sleeve compensation joint, the connection method is one end of the flange connection, the other end is the socket connection, the flange loose sleeve expansion joint is suitable for the connection of valves and other equipment and pipelines, and the flange loose sleeve expansion joint can compensate the axial displacement of the pipeline and a certain amount of deflection and confidence at the same time of connection, so as to protect valves and other equipment. The socket is also suitable for connecting with steel pipe, cast iron pipe, ductile iron pipe,PVC pipe,ABS pipe, etc. At the same time, absorbing the advantages of similar products at home and abroad, flanged loose sleeve expansion joint has a simple and reasonable structure, reliable sealing performance, no need to weld, easy installation and disassembly, flanged loose sleeve expansion joint can compensate the displacement, dislocation and deflection of the pipeline within a certain range of advantages and high reuse rate, flanged loose sleeve expansion joint is suitable for any medium pipeline. It is used to connect valves, pumps and other devices to pipelines.

Henan Jingyuan Water Supply Equipment Co., Ltd. produces all kinds of special acid and alkali resistance, high temperature resistance, high pressure resistance, negative pressure resistance, oil resistance and other materials rubber joints. American standard, Russian standard, German standard, British standard, Japanese standard, Korean standard and other rubber joints. There are also double flanged force transfer joint, expansion joint, large deflection loose sleeve compensation joint, flanged spherical joint, corrugated expansion joint, thermal sleeve compensator, flexible, rigid waterproof sleeve, V-type connector, steel flexible clamp joint, stainless steel round and rectangular corrugated compensator, smoke duct rubber, fiber fabric compensator. The company's products are widely used in petroleum, chemical industry, steel, metallurgy, machinery, transportation, shipbuilding, wharf, construction, paper making, textile, electric power heating network, pharmaceutical, water supply, drainage, electric power, metallurgy, urban construction, chemical environmental protection and other industries.

The company produces caliber DN15-DN4000 (1/2'-160'), rubber materials mainly include NR, EPDM, NBR, NEOPRENE, etc., metal materials mainly include Q235, Q345, SS304, SS316 and so on. Metal bellows expansion joint GB/T12777-2008, metal hoses GB/T14525-1993 technical standard. The product has the characteristics of high temperature resistance, high pressure resistance, corrosion resistance, fatigue resistance, wear resistance, high safety, etc. The product manufacturing technology is exquisite, the structure is novel and easy to install.

The company's products have been widely used in water supply, heating, power, chemical, gas, metallurgy, thermal power, environmental protection and other pipeline industry projects. The company has cooperated with hundreds of enterprises at home and abroad, and its products are exported to the United States, Britain, Germany, South Korea, Vietnam, Japan, Singapore, Spain and other parts of the world.

Jingyuan water supply continues to adhere to the "unity, hard work, pragmatic, efficient" spirit of enterprise, to provide customers with better products and services.

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