Model Number:
Self Locking Universal Coupling is a mechanical connection device mainly used for connecting pipelines or hydraulic systems, with self-locking function to prevent accidental separation...
Products Description
Solid is a leading China-based supplier of Ductile Iron Self-Locking Universal Couplings, designed for connecting ductile iron, steel, PVC, PE, stainless steel, and AC pipes. The coupling features a mechanical locking system with metal inserts to prevent axial movement of the pipes. Constructed with corrosion-resistant materials, these ductile iron couplings are available in a variety of coating colors to meet specific project requirements.
Self Locking Universal Coupling is a mechanical connection device mainly used for connecting pipelines or hydraulic systems, with self-locking function to prevent accidental separation. The following are its core features and application scenarios:
Self locking mechanism: Axial fixation is achieved through metal inserts or mechanical locking structures (such as metal block lock designs) to prevent displacement of the pipeline due to vibration or external forces.
Compensation capability: It can compensate for pipeline diameter deviation (minimum 10cm, maximum 17cm), adapt to pipeline defects or installation errors.
Tilt tolerance: Allow pipeline deviation of ± 5 ° to still be connected, solving the installation problem caused by deviation in traditional connections.
Flange compatibility: The end adopts a flange design, which can be freely connected to PN10 or PN16 flanges, simplifying the pipeline connection process.
Cast iron pipeline system: widely used in water supply, drainage and other engineering projects, supporting large-diameter pipeline connections.
Fire protection system: Some models (such as Storz self-locking couplings) are designed specifically for fire hoses, and are mostly made of aluminum alloy or brass, supporting quick disassembly and assembly.
Suitable for connecting pipes of various materials, including cast iron, stainless steel, PVC, asbestos cement, and polyethylene.
Mechanical locking with metal inserts prevents axial movement of the pipes.
Independent clamping on both sides for secure installation.
Allows a maximum angular deviation of up to 10°.
Operating Pressure:
PN-16: DN50 to DN200
PN-10: DN250 and DN300
Made from GGG-50 nodular cast iron for superior strength.
Average 250 μm epoxy coating for corrosion resistance.
The sealing method adopts socket type, mechanical locking through metal inlay, avoiding axial movement of the pipeline, bolt pretension, and realizing the surrounding locking of the pipeline, with extremely high resistance to pull-off and pressure resistance.
Both products have a compensation function, can compensate for the pipe diameter distance, the shortest can compensate 10 cm, the longest can compensate 17 cm, the pipe defect compensation and connection, the end of the wide-range locking flange joint is a flange design, can be freely connected with PN10 or PN16 flange, convenient pipeline connection, reduce inventory.
Pipe deviation plus or minus 5 degrees can be carried out socketing operation, to solve the problem that pipeline deviation is difficult to connect due to other factors.
Products Specification
Widespread Applications for Industrial Connectivity
Ductile iron joints are mainly used in urban water supply, drainage, and industrial fluid transportation fields. Shanxi Solid Industrial Co.,Ltd. can provide you with satisfactory related solutions.
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+86 351 8390 369
+86 185 3465 8603
28th, Huanqiu Jinrong Zhongxin, Xieyuan Road, Changfeng Business District, Taiyuan City, Shanxi Province, China
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