Fire Fighting Grooved Coupling Red Painted Rigid Joint for Wet Riser Hydrant Lines

• Customization: Available
• Connection: Welding
• Flexible or Rigid: Flexible
• Model NO.: DN3-6
• Material: Iron
• Standard: Standard
• Product Name: Rigid Coupling Grooved Pipe Fittings
• Keywords: Grooved Pipe Fittings
• Application: Pipe Lines Connect
• Color: Red
• Wall Thickness: Sch20
• Head Code: Round
• Shape: Equal
• Certification: ASME, ANSI, DIN, JIS, BS, GB, GS, Ks
• Working Pressure: 2.5 MPa
• Sample: Accept
• Transport Package: Carton/Woven Bag + Pallet
• Specification: Standard Specifications or Customized
• Trademark: XINGSHENG
• Origin: Shanxi, China
• Production Capacity: 50000pieces/Year

Product Description

Product Description

RIGID COUPLING GROOVED PIPE FITTINGS

Rigid coupling grooved pipe fittings are high-strength connectors designed to create fixed, non-flexible joints between grooved pipes in fire protection, HVAC, industrial, and mechanical piping systems. 

Using a mechanical grooved coupling design with a ductile iron housing, high-performance gasket, and heavy-duty bolts and nuts, these rigid couplings deliver strong end-load capability, excellent sealing, and precise pipe alignment. 

Once installed, the coupling locks two grooved pipe ends together to form a solid, rigid connection that helps maintain system geometry, reduce vibration and movement, and support hangers and supports effectively. 

Ideal as an alternative to flanged and welded joints, rigid grooved couplings provide fast installation, easy maintenance, and reliable performance for water, chilled water, sprinkler, and industrial fluid pipelines, making them a preferred choice for contractors and engineers seeking secure grooved pipe fittings that combine safety, efficiency, and cost-effectiveness.

Specification

Product Name	Ductile Iron Grooved Pipe Fittings	Working Temperature	1-200°
Material	Ductile Iron	Working Pressure	2.5Mpa
Connection Method	Grooved	Application	Pipe Lines Connect
Media	Oil/Water/Gas	Service	24 Hour Online

Functional Advantages

RIGID, NON-DEFLECTING JOINT DESIGN

Engineered to create a fixed, non-flexible connection between grooved pipes, helping maintain straight alignment, control pipe movement, and provide structural stability in the piping system.

HIGH-STRENGTH DUCTILE IRON HOUSING

Manufactured from premium ductile iron, the coupling housings offer high tensile strength, toughness, and impact resistance, ensuring reliable performance under high pressure and demanding service conditions.

RELIABLE GROOVED MECHANICAL COUPLING SYSTEM

Utilizes a mechanical grooved joint with keys that engage the pipe groove, transferring end loads through the housing and providing a secure, positive connection without welding or flanging.

PREMIUM SEALING GASKET FOR LEAK PROTECTION

Equipped with a molded elastomer gasket that surrounds the pipe ends to provide continuous, leak-resistant sealing for water, fire protection, HVAC, and many industrial fluids.

Core Applications

FIRE PROTECTION AND SPRINKLER SYSTEMS
Widely used in wet, dry, pre-action, and deluge fire sprinkler systems to join grooved sprinkler pipes, risers, and mains, providing secure, rigid joints that support stable system layout and performance.
 
COMMERCIAL AND INDUSTRIAL HVAC PIPING
Ideal for chilled water, condenser water, and heating water lines in commercial buildings, data centers, and industrial plants, where rigid couplings help maintain straight runs and precise alignment over long distances.
 
MECHANICAL AND BUILDING SERVICES PIPING
Applied in mechanical rooms, plant rooms, and building service corridors to connect grooved pipes for water supply, cooling, and utility services, offering a fast, clean alternative to welding.
 
INDUSTRIAL PROCESS AND UTILITY WATER SYSTEMS
Used in manufacturing plants, power stations, and processing facilities to connect grooved lines carrying process water, cooling water, and other non-corrosive fluids where rigid support and alignment are required.
 
HIGH-RISE AND LARGE INFRASTRUCTURE PROJECTS
Common in high-rise buildings, stadiums, airports, and commercial complexes, where rigid grooved couplings provide strong joints capable of handling high pressures and vertical riser loads.

FAQ

Q1: Are you a factory or a trader?
A: We are a manufacturer integrating industry and trade. Welcome to visit our company.
 
Q2: Can I add my LOGO to the product?
A: We support on-demand customization, including LOGO customization, color customization, appearance size customization, etc.
 
Q3: What payment methods do you support?
A: We support T/T, Western Union, PayPal, cash, etc. The details can be negotiated.
 
Q4: What are your modes of transportation?
A: We usually choose the appropriate mode of transportation (sea, air, land) according to the conditions of the goods, or we can choose the mode of transportation according to your requirements.
 
Q5: How can I get an accurate quotation?
A: You can first send your specific demand information and product pictures, and we will customize a solution for you according to your needs and inform you of the specific price.