Grooved Pipe Fittings

Grooved Coupling Rigid Coupling XGQT01

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We offer tongue and groove rigid couplings that are suitable for applications requiring rigidity. While the grooved couplings connection concept has become synonymous with faster and easier installation, not all manufacturers of grooved couplings products are the same. We are unique. The built-in teeth firmly grasp the pipe ends to prevent unwanted flexing. The specific items list will be posted on FM and UL's websites.

Grooved Coupling Rigid Coupling XGQT01

Product Description

Available sizes: 1 – 12 inch 

Working pressure: 300 PSI FM approved / UL certified  

Coating:red painted / galvanized / epoxy blue / grey 

Gasket : EPDM / NITRILE / SILICON

Grooved Coupling Description

Grooved Coupling, usually has two different types: Rigid Coupling and Flexible Coupling.

Grooved Rigid Couplings are used in general piping joint applications where rigidity is required. The rigid couplings provide a completely rigid connection similar to traditional flanged, welded, and threaded piping connections with the help of grip teeth. It eliminates or reduces angular deflection, axial displacement, and rotation after installation. This makes it easy to install even very long pipelines without angular deflection. 


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The grooved connection is a new type of steel pipe connection solution, also called a groove connector, grooved rigid couplings, which has many advantages. The pipe groove is made by forming or machining an actual groove into the ends of two pipes. A gasket wraps around and on top of the pipe ends, the housings wrap around the gasket and sit in the pipe grooves, and the bolts and nuts are tightened with a wrench to hold it all together. Grooved couplings, fittings & accessories provide a faster, easier and safer way to join pipe.


The design specification of an automatic sprinkler system proposes that the connection of system pipes should adopt grooved connectors or threaded and flanged connections; pipes with a diameter equal to or greater than 100mm in the system should be segmented with flanges or grooved connectors connection. 

Sealing components of groove couplings

The groove connecting pipe fittings that play the role of connecting and sealing is mainly composed of three parts: the sealing rubber ring, the clamp, and the locking bolt. The rubber seal ring located in the inner layer is placed on the outside of the connected pipe and fits with the pre-rolled groove, and then buckle the clamp on the outside of the rubber ring, and then fasten it with two bolts. Because its rubber sealing ring and clamp adopt a unique sealable structural design, the grooved connector has good sealing performance, and as the fluid pressure in the pipe increases, its sealing performance is correspondingly enhanced. 

  ASK FOR Rigid Grooved Couplings PRICE  


Product Dimensions

Grooved Coupling Rigid Coupling XGQT01

  ASK FOR Rigid Grooved Couplings PRICE  

Grooved Coupling Rigid Coupling XGQT01

  ASK FOR Rigid Grooved Couplings PRICE  

Grooved Coupling Rigid Coupling XGQT01

  ASK FOR Rigid Grooved Couplings PRICE  



Grooved couplings, as well as grooved fittings, grooved couplings, and grooved valves, are found in a seemingly endless number of piping applications worldwide today.

While the grooved couplings connection concept has become synonymous with faster and easier installation, not all manufacturers of grooved couplings products are the same. We are unique.

Whatever fitting you need, we can help you find it quickly. JIANZHI offers you grooved couplings for reliable, durable, precision-constructed piping fitting systems.


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Contact Us

E-mail: sales1@jianzhi-fitting.com

Tel: +86 022 8848 8866

Office In Tianjin:

Heping District, Tianjin, China.

Production Base 1:

Chifeng, Inner Mongolia, China.

Production Base 2:

Tangshan City, Hebei Province, China.

Jianzhi International Trade (Tianjin) Co., Ltd.

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