PIPE COUPLING
Pipe couplings are mainly used to connect two pipes together to make the pipeline continue. It can also be used to repair pipes (repair coupling clamp), change the size or material of the pipe (step coupling), change the direction of the pipe (angle coupling), facilitate the maintenance of the pipeline, use the flexible characteristics of the pipe coupling to absorb the movement or vibration of the pipeline, and coupling allow the pipe to be misaligned, which can be used to align the pipe.
FLANGE COUPLING
Flange coupling is one of pipe couplings.With flange in one end to connect with flanges from neighbour pipeline parts, with socket in another end to connect pipe plain ends.So it is widely used to connect one pipe to valves, water meters, flow meters etc pipeline elements.
Name Universal Flange Coupling
Series No. FA001
Material DI
Function
Connect flange to pipes(Ductile iron pipe,Cast iron pipe,AC pipe ,PVC pipe ,Steel pipe etc which pipe OD is in our designed range,Don’t suitable for HDPE pipe)
Name Mechanical Joint Flange Coupling
Series No. FA002
Material DI
Function
Connect flange to pipes(Ductile iron pipe,Cast iron pipe,AC pipe ,PVC pipe ,Steel pipe etc which pipe OD is in our designed range)
Name Aquagrip Flange Coupling
Series No. FA003
Material DI
Function
Connect flange to HDPE pipes
Name Restrained Flange Coupling
Series No.FA004
Material DI
Function
Connect flange to HDPE pipes
Name Ductile Iron Ranger Flange Coupling
Series No.FA005
Material DI
Function
Connect flange to pipes(Ductile iron pipe,Cast iron pipe,AC pipe ,PVC pipe ,Steel pipe etc which pipe OD is in our designed range,Don’t suitable for HDPE pipe)
Name Dedicated Flange Coupling
Series No.FA006
Material DI
Function
Connect flange to one specific pipes(Ductile iron pipe or Steel pipe etc),don’t suitable for HDPE pipe
NameWide Range flange coupling for HDPE pipe
Series No. FA013
Material DI
Function
Connect flange to HDPE pipes
Name Flange Adaptor Coupling
Series No.FA014
Material DI
Function
Connect flange to HDPE pipes
NameCarbon Steel Flange Coupling
Series No.FA007
Material Steel
Function
Connect flange to one specific pipe(Ductile iron pipe or Steel pipe etc ,Don’t suitable for HDPE pipe)
Name Restrained Flange coupling for HDPE pipe
Series No.FA008
Material DI
Function
Connect flange to HDPE pipe
Name Mechanical Joint Flange Coupling
Series No. FA009
Material DI
Function
Connect flange to HDPE pipes
Name Quick Flange Coupling For PVC Pipe
Series No.FA012
Material DI
Function
Connect flange to PVC pipes
Name Quick Flange Coupling For HDPE Pipe
Series No.FA011
Material DI
Function
Connect flange to HDPE pipe
Name Step Flange Coupling For larger Pipe
Series No.FA010
Material DI
Function
Connect flange to larger pipe than flange nominal diameter
Flexible Pipe Coupling
A flexible pipe coupling is a fitting used to connect two sections of pipe that allows for movement and deformation within a certain range. The gaskets in flexible pipe couplings are made of elastic materials (such as rubber or other synthetic materials) that can absorb and dissipate stress and vibration in a pipe system. They are highly effective in applications where pipes need to accommodate thermal expansion, ground settlement, or minor misalignment.
Name Universal Coupling
Series No. Sr No JC001
Material DI & Steel
Function
Connect two pipes plain ends (Ductile iron pipe,Cast iron pipe,AC pipe ,PVC pipe ,Steel pipe etc which pipe OD is in our designed range,Don’t suitable for HDPE pipe),Pipes outside diameter should be same for both ends or small gap
Name Dedicated Coupling
Series No. Sr No. JC012
Material DI or Steel
Function
Connect two pipes plain ends (one coupling suit for only one specific pipe,Don’t suitable for HDPE pipe)
Name Restrained Coupling
Series No.Sr No JC008
Material DI
Function
Connect two HDPE pipes plain ends
Name Restrained Coupling
Series No. Sr No JC009
Material DI
Function
Connect two HDPE pipes plain ends
Name Multigrip Restrained Universal Coupling
Series No. Sr No JC010
Material DI
Function
Connect two HDPE pipes plain ends
Name Mechanical Coupling
Series No. Sr No JC011
Material DI
Function
Connect two pipes plain ends
Name Restrained Transition Coupling
Series No.Sr No JC013
Material DI
Function
Connect two pipes with different outside diameter ,with griper to avoid pipe to be pulled out
Name Pipe Coupling Clamp
Series No. Sr No JC007
Material DI
Function
Restraint coupling for two spigot ends of PE or PVC pipe, also can transit PE to PVC pipe
Name Step Coupling
Series No. Sr No JC004
Material DI
Function
Transit one material pipe to another material pipe or transit one size pipe to another different size pipe, can’t used to HDPE pipe
Name Long Universal Coupling
Series No. Sr No JC005
Material DI
Function
Connect two pipes plain ends which are with same outside diameter, not suitable for HDPE pipe
Name Dresser Coupling
Series No.Sr No JC006
Material DI &steel
Function
Connect two specific pipes plain ends , can withstand higher pressure up to 330psi
Name Universal Coupling
Series No. Sr No JC002
Material DI
Function
Connect two pipes plain ends (Ductile iron pipe,Cast iron pipe,AC pipe ,PVC pipe ,Steel pipe etc which pipe OD is in our designed range,Don’t suitable for HDPE pipe),Pipes outside diameter should be same for both ends or small gap
Name Coupling with Locating Plug
Series No. Sr No. JC003
Material DI
Function
Plug prevent the pipe from sliding inside coupling, Suitable for ground vibration, thermal expansion and contraction, etc project situation, for above-ground pipelines
GIBAULT COUPLING
Gibault coupling is a mechanical coupling used for pipe connections, usually used to connect or repair PVC pipes, cast iron pipes, HDPE pipes, and other types of pipeline systems. Gibault couplings are single-range and are named for their easy and fast installation and efficient sealing performance, most commonly used in low-pressure PVC pipe.
Name Gibault Coupling
Series No. GJ002
Material DI
Function
Connect two PVC pipes plain ends
Name PVC Coupling
Series No. GJ006
Material Nylon
Function
Connect two PVC pipes plain ends
DISMANTLING COUPLING
A dismantling coupling is a type of pipe fitting used to connect and dismantle components in a pipeline system, such as valves, pumps, and other equipment. It allows these items to be easily installed and removed without having to significantly move the pipes, simplifying maintenance and repair processes. Dismantling couplings are typically used in pipeline systems that require frequent maintenance.
Name Heavy Duty Dismantling Joint
Series No. DJ001
Material DI
Function Provides space for neighbouring parts disassembling by changing its own length
Name Heavy Duty Dismantling Joint
Series No. DJ002
Material DI
Function Provides space for neighbouring parts disassembling by changing its own length
Name Heavy Duty Dismantling Joint
Series No. DJ003
Material DI
Function Provides space for neighbouring parts disassembling by changing its own length
Name Heavy Duty Dismantling Joint
Series No. DJ006
Material DI
Function Provides space for neighbouring parts disassembling by changing its own length
Name Light Duty Dismantling Joint
Series No. DJ004
Material DI
Function Provides space for neighbouring parts disassembling by changing its own length
Name Light Duty Dismantling Joint
Series No. DJ005
Material DI
Function Provides space for neighbouring parts disassembling by changing its own length
Name Light Duty Dismantling Joint
Series No. DJ010
Material DI
Function Provides space for neighbouring parts disassembling by changing its own length
Name Light Duty Dismantling Joint
Series No. DJ011
Material DI
Function Provides space for neighbouring parts disassembling by changing its own length
Name Heavy Duty Dismantling Joint
Series No. DJ009
Material DI
Function Provides space for neighbouring parts disassembling by changing its own length
Name Heavy Duty Dismantling Joint
Series No. DJ007
Material Steel
Function Provides space for neighbouring parts disassembling by changing its own length
Name Heavy Duty Dismantling Joint
Series No. DJ008
Material Stainless Steel
Function Provides space for neighbouring parts disassembling by changing its own length
STAINLESS STEEL PIPE COUPLING
The stainless steel pipe coupling can be used for pipeline connections, and some designs combine the functions of a pipe coupling and a repair clamp. The stainless steel pipe coupling allows for a certain degree of axial movement and angular deflection of the pipe. It features a self-sealing structure, where the sealing performance improves as the pressure increases.
Name Stainless steel pipe coupling with anchor rings to avoid pipes to be pulled out, axially restrained
Series No. SSPC001
Material Stainless Steel
Function Connect pipes, this pipe coupling have two grip rings on both ends to grip pipes, can replace flange ,welding, groove and thread etc connection, quick and easy
Name stainless steel pipe coupling for pipe connection which allow for pipe expansion and contraction
Series No. SSPC002
Material Stainless Steel
Function Connect pipes, This pipe coupling is designed with thick sealing lips on both ends. When the pipeline expands or contracts due to temperature changes or external forces, the thick sealing lips effectively provide a tight seal to prevent leakage.
Name Stainless steel pipe coupling with anchor rings to avoid pipes to be pulled out, axially restrained, narrow type for limited space
Series No. SSPC003
Material Stainless Steel
Function Connect pipes, this pipe coupling have two grip rings on both ends to grip pipes, can replace flange ,welding, groove and thread etc connection, quick and easy, narrow type for limited space
Name Single band stainless steel pipe repair coupling for permanent repair with pressure in pipeline
Series No. SSPC004
Material Stainless Steel
Function Open the repair coupling, wrap it around the pipe and fasten the tie rods, then you can repair the pipe with pressure inside the pipeline
Name Double bands stainless steel pipe repair coupling for permanent repair with pressure in pipeline
Series No. SSPC005
Material Stainless Steel
Function Open the repair coupling, wrap it around the pipe and fasten the tie rods, then you can repair the pipe with pressure inside the pipeline
Name Heavy duty stainless steel pipe coupling for more impact resistance and axial pull-out resistance
Series No. SSPC006
Material Stainless Steel
Function The enhanced pipe coupling, compared to the standard pipe coupling, offers superior impact resistance and a reliable axial pull-out resistance function. The maximum pressure can reach 70 bar (7 MPa).
Name Stainless steel Fire-resistant pipe coupling
Series No. SSPC007
Material Stainless Steel
Function Fire-resistant pipe coupling, suitable for connecting metal pipes of all wall thicknesses, with axial pull-out resistance. It is a high-security fire-protected mechanical pipe coupling. Under high temperatures of +800°C (±50°C), it can provide fire resistance for up to 90 minutes.
Name Pipe coupling with tie rods , for pipe connection and vibration damping and noise reduction similar to expansion joint
Series No. SSPC008
Material Stainless Steel
Function Pipe coupling with tie rods, suitable for pipes made of any material, featuring axial limiting and compensation functions. The combination of limiting tie rods and the pipe coupling allows it to not only serve as a pipe coupling for connection but also provide vibration damping and noise reduction functions similar to those of an expansion joint.
Name high pressure pipe repair coupling , can withstand max. pressure is 8 Mpa
Series No. SSPC009
Material Cast Steel
Function This pipe repair coupling is specifically designed for repairing high-pressure pipelines, can withstand max. pressure is 8 MPa.
Name restrained pipe coupling adapter for HDPE pipes, with grip ring to avoid pipes to be pulled out
Series No. SSPC010
Material Stainless Steel band and brass grip ring
Function With brass grip rings on both ends to grip HDPE pipe to be pulled out, restrained type, designed for HDPE pipe which is easily to be deformed.
Name one end restrained , another end non restrained pipe coupling
Series No. SSPC011
Material Stainless Steel band and brass grip ring
Function One end with grip ring to connect HDPE pipes which is easily to be deformed to avoid leakage, another ends without grip ring to connect ductile iron, steel etc pipes which is not easily to be deformed
Name Pipe coupling with branch outlet ,branch outlet can be customized
Series No. SSPC012
Material Stainless Steel
Function Pipe coupling with outlet, outlet can be thread outlet, flange outlet etc, also can be with isolation valve for the control of on-off of the branch pipeline.
PIPE COUPLING TYPES
By material
Pipe couplings can be made of many materials, common materials are cast iron (include ductile iron and grey cast iron), steel (include carbon steel and stainless steel), PVC, PP, PE, FRP, Brass and copper.
Cast iron couplings have high strength to withstand high pressure, strong and wear-resistant , corrosion resistance, heat resistance, stable dimensions , good sealing performance, low price, fast and simple production, so it is widely used in water supply, sewage, oil and other pipelines, can be used to connect Ductile iron, PVC, HDPE, Steel, AC, GRP etc most pipes.
Steel pipe Couplings have high tensile strength and hardness, suitable for high-pressure and high-temperature environments. It has lower ductility compared to ductile iron pipe coupling but provides higher strength in structural applications. Therefore, it is widely used in petroleum and natural gas, chemical processing, power generation, and industrial pipeline systems. It is suitable for high-pressure, high-temperature environments, and applications that require high mechanical strength.
PVC coupling made of polyvinyl chloride (PVC), low cost, lightweight, and corrosion-resistant.Typically used in low-pressure and non-high-temperature environments.However, compared to metal pipe couplings, PVC couplings have lower strength and are not suitable for high-pressure or high-temperature applications. They are prone to failure under extreme conditions. They have poor UV resistance and can age and become brittle when exposed to sunlight for long periods.mainly used in water supply and drainage systems, irrigation systems, and chemical pipelines.
PP Coupling is corrosion resistance, lightweight, good temperature resistance, wear resistance, ease of installation, and non-toxic, so it is widely used in the chemical, water treatment, agricultural irrigation, food and beverage, pharmaceutical, cooling systems, and electronics industries . In these areas, PP couplings provide an economical, efficient, and reliable solution for pipe connections.
PE coupling is widely used in the water supply, drainage, natural gas transmission, agricultural irrigation, industrial transportation, communication cable sheathing, and ground source heat pump systems because of its corrosion resistance, lightweight, good flexibility, low-temperature resistance, non-toxic and environmentally friendly properties. However, its low temperature resistance and strength, as well as its sensitivity to ultraviolet light, are its main disadvantages. In the appropriate application scenario, PE couplings provide an economical, efficient, and reliable solution for pipe connections.
FRP couplings are widely used in the chemical, marine engineering, oil and gas, municipal water supply and drainage, power, food and pharmaceutical industries due to their high strength, lightweight, corrosion resistance, temperature resistance, insulation, and aging resistance. However, the disadvantages of its high cost, lower mechanical properties than metal, complex connection, and large thermal expansion coefficient need to be considered in design and use. In the appropriate application scenario, FRP pipe couplings provide a long-lasting and reliable solution for pipe connections.
Brass pipe couplings are widely used in water supply, gas supply, air conditioning and refrigeration, industrial equipment, ships, sanitary equipment, and electrical connections due to their corrosion resistance, high strength, high and low temperature resistance, wear resistance, antibacterial properties, and conductivity and thermal conductivity. However, the disadvantages of its high cost, heavy weight, and possible lead content need to be considered in design and use. In the appropriate application scenario, brass pipe couplings provide a reliable and durable connection solution.
Copper pipe couplings are widely used in water supply, HVAC, gas transmission, medical equipment, industrial equipment, electrical equipment, and solar and geothermal systems due to their excellent corrosion resistance, high strength, good thermal and electrical conductivity, antibacterial properties, flexibility, and high-temperature resistance. However, the disadvantages of its high cost, heavy weight, and ease of theft need to be considered in some applications.
By Function
- Flexible Pipe Coupling
Function: Allows the pipe to move axially, radially, and angularly within a certain range to accommodate thermal expansion, foundation settlement, and vibration.
Application: Used for building water supply systems, industrial pipeline systems, and pipeline connections in earthquake-prone areas. - Rigid Pipe Coupling
Function: Provides a strong, fixed connection that does not allow for any movement, ensuring the rigidity of the pipe system.
Application: Used for pipe systems that do not require movement or expansion, such as fixed conveyance pipes and structural pipes. - Expansion Joint
Function: Absorbs and reduces vibration and noise in the pipe system, protecting pipes and their connecting equipment. Allows for the expansion and contraction of pipes due to temperature changes, preventing pipe deformation or rupture.
Application: Commonly used in mechanical equipment connections, pump rooms, and compressor pipe systems. - Step Coupling
Function: Connects pipes of different diameters, providing a transition from larger diameters to smaller diameters.
Application: Used in various systems that require connecting pipes of different sizes, such as water systems. - Quick Coupling
Function: Allows for the quick connection and disconnection of pipes, easy to operate, and typically does not require tools.
Application: Widely used in pipe systems that require frequent disassembly and replacement, such as hydraulic systems and laboratory equipment. - Flanged Pipe Coupling
Function: Connects pipes using flanges and bolts, providing a strong, reliable connection that is easy to disassemble and maintain.
Application: Used in large diameter pipes, industrial pipelines, and municipal pipeline systems. - Threaded Pipe Coupling
Function: Connects pipes using threads, easy to install and disassemble, suitable for small diameter pipes.
Application: Used in home water supply, gas pipelines, and small industrial pipeline systems. - Welded Pipe Coupling
Function: Permanently connects pipes by welding, providing a high-strength and leak-proof connection.
Application: Used in high-pressure, high-temperature, and critical process pipe systems. - Slip Pipe Coupling
Function: Allows the pipe to slide inside the coupling to accommodate a certain length change, typically used for repairing pipes.
Application: Used in pipe systems that require length adjustment or temporary repairs.
These pipe couplings with different functions are widely used in various pipe systems to meet different engineering requirements and applications based on their specific designs and functions.
By Pipeline
1,Water Supply Pipe Coupling
Type
Flexible coupling: Adaptable to minor pipe displacement and vibration.
repair coupling: Used to repair and adjust pipe lengths.
Step coupling: Connects pipes of different diameters or different materials.
Flanged coupling: Connects flange to pipe plain ends, normally for large-diameter drainage pipes.
Application: Used in residential, commercial, and industrial building water supply pipe systems to ensure the safe delivery of water.
2,Drainage Pipe Coupling
Type
Flexible coupling: Adaptable to foundation settlement and ground movement.
repair coupling: Used to repair and adjust pipe lengths.
Flanged coupling: Connects flange to pipe plain ends, normally for large-diameter drainage pipes.
Application: Used in urban drainage, sewage treatment systems, and stormwater discharge systems.
3,Gas Pipe Coupling
Type:
Threaded pipe coupling: Provides a tight connection to prevent leaks.
Welded pipe coupling: For the permanent connection of high-pressure gas pipes.
Quick coupling: For quick disconnection in emergencies.
Application: Used for the transportation of natural gas and liquefied petroleum gas (LPG) pipeline systems.
4,HVAC Pipe Coupling
Type:
Flexible coupling: Adaptable to thermal expansion and contraction.
Flanged pipe coupling: Connects pipes in large air conditioning systems.
Welded pipe coupling: For high-temperature and high-pressure HVAC pipes.
Application: Used for the delivery of hot and cold water and refrigerants in air conditioning, refrigeration, and heating systems.
5,Industrial Pipe Coupling
Type:
Corrosion-resistant coupling: For the transport of corrosive media in chemical plants.
High-pressure coupling: For high-pressure steam and liquid pipelines.
Shock-absorbing coupling: Reduces the impact of mechanical vibrations on the pipes.
Application: Used in various industrial pipeline systems in chemical, petroleum, natural gas, metallurgy, and manufacturing industries.
6,Fire Protection Pipe Coupling
Type:
Flanged pipe coupling: Ensures the strength and stability of the pipe system.
Flexible coupling: Adaptable to thermal expansion and contraction and vibrations in buildings.
Quick coupling: For quick installation and disassembly.
Application: Used in fire protection water pipe systems in buildings and industrial facilities.
7,Agricultural Irrigation Pipe Coupling
Type:
Slip pipe coupling: For adjusting the length of irrigation systems.
Flexible coupling: Adaptable to changes in terrain.
Quick coupling: For quick connection and disconnection.
Application: Used in farmland and horticultural irrigation systems to ensure the efficient delivery of water.
8,Food and Pharmaceutical Pipe Coupling
Type:
Stainless steel coupling: Ensures pollution-free and corrosion-resistant properties.
Quick coupling: For frequent cleaning and maintenance.
Sterile coupling: Ensures the sanitary and safe transport of media.
Application: Used in liquid and gas transport systems in the food processing and pharmaceutical industries.
9,Oil and Gas Pipe Coupling
Type:
High-pressure coupling: For high-pressure transport.
Explosion-proof coupling: Ensures safety.
Corrosion-resistant coupling: For marine environments.
Application: Used in pipeline systems for the exploration, transport, and storage of oil and natural gas.
10,Marine Pipe Coupling
Type:
Corrosion-resistant coupling: For seawater pipe systems.
Flexible coupling: Adaptable to the movement of ships and offshore platforms.
High-pressure coupling: For ship power systems and marine engineering.
Application: Used in water, fuel, and wastewater pipe systems in ships and marine engineering.
These pipe couplings with different functions and application scenarios ensure that the pipe systems operate efficiently, safely, and reliably based on their specific designs and performance requirements.
