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.

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

 

long universal coupling

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 

 

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

Wide Range flange adaptor for HDPE pipe

NameWide Range flange coupling for HDPE pipe

Series No. FA013

Material DI

Function 

Connect flange to HDPE pipes

flange adaptor coupling for HDPE pipe

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

step flange adaptor

Name Step Flange Coupling For larger Pipe

Series No.FA010

Material DI

Function 

Connect flange to larger pipe than flange nominal diameter

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

GROOVE COUPLINGS

Grooved coupling is a pipe fitting used to connect grooved-end pipes. It consists of a metal housing, a rubber gasket, and bolts & nuts. During installation, the gasket is placed over the pipe ends, the housing is fitted around it, and the bolts are tightened. This locks the coupling into the grooves on the pipes, creating a secure and leak-proof connection.
Judberd is a Chinese manufacturer of many different types of grooved couplings, including flexible couplings that allow for movement due to thermal expansion, seismic activity, or vibration, rigid couplings that provide a firm, immovable connection similar to welding or flanges, and transition couplings that can connect steel pipe to HDPE pipe, etc. Please check them out below.

DUCTILE IRON GROOVE COUPLING

Name Rigid Coupling

Series No. RGC001

Material Ductile Iron 

Function This coupling is designed to securely connect grooved-end steel pipes, ensuring a stable and immovable joint. It provides a strong and stable connection for high-pressure and fixed pipe systems. It is a high-strength fixed joint.

 

Name Flexible Coupling(Working Pressure 5 Mpa for small size, 3 Mpa for big size) 

Series No.  FGC001

Material Ductile Iron

Function It is used to connect grooved-end pipes while allowing a certain degree of flexibility in the system. It absorbs pipe movement, allows for axial displacement, angular deflection, and even vibration absorption. It reduces stress on piping systems – Helps accommodate thermal expansion, contraction, and seismic movement.

Name Middle pressure flexible coupling(Working Pressure 7 Mpa for small size, 5 Mpa for big size) 

Series No. FGC002

Material Ductile Iron

Function It is used to connect grooved-end pipes while allowing a certain degree of flexibility in the system. It absorbs pipe movement, allows for axial displacement, angular deflection, and even vibration absorption. It reduces stress on piping systems – Helps accommodate thermal expansion, contraction, and seismic movement.

Name High Pressure Flexible Coupling(Working Pressure 10 Mpa for small size, 8 Mpa for big size) 

Series No. FGC002

Material Stainless Steel 

Function It is used to connect grooved-end pipes while allowing a certain degree of flexibility in the system. It absorbs pipe movement, allows for axial displacement, angular deflection, and even vibration absorption. It reduces stress on piping systems – Helps accommodate thermal expansion, contraction, and seismic movement.

Name Super high pressure flexible coupling(Working Pressure 15 Mpa for small size, 10.5 Mpa for big size)  

Series No. FGC003

Material Ductile iron

Function It is used to connect grooved-end pipes while allowing a certain degree of flexibility in the system. It absorbs pipe movement, allows for axial displacement, angular deflection, and even vibration absorption. It reduces stress on piping systems – Helps accommodate thermal expansion, contraction, and seismic movement.

Name Reducing Coupling 

Series No. RGC001

Material Ductile iron

Function Reducing groove coupling is a mechanical pipe coupling used to connect two steel pipes of different diameters.

Name Shoulder Coupling which connects by relying on the raised shoulder at the end of the pipe

Series No. SGC001

Material Ductile iron

Function Shouldered groove coupling is a connection method you use when you can’t roll groove or machine thin-wall pipe or large diameter pipe. In that case, you weld rings to the ends of the pipe, and then you install the coupling the same way you would a standard grooved pipe fitting.It has a little bit of flex to it, so it can handle thermal expansion, contraction, or movement in the pipeline.

Ring Joint Coupling

Name Ring Joint Coupling

Series No. RJGC001

Material Ductile iron

Function Ring joint coupling is where you weld a ring onto the steel pipe, and then you lock the ring into the groove of the ring joint coupling to make a rigid connection. Once you connect it, the two pipe sections are locked together — they can’t turn or move — which makes it good for systems that have high structural strength requirements.

Name Coupling for HDPE Pipe

Series No. GCFPE001

Material Ductile Iron

Function The groove coupling for HDPE pipe gets its strength by having sharp teeth that bite into the HDPE pipe, which keeps the pipe from pulling out because HDPE has a tendency to deform.

Transition coupling for HDPE pipe to Steel pipe

NameTransition coupling for HDPE pipe to Steel pipe

Series No. TCPE-Steel001

Material Ductile Iron

Function It’s used to connect HDPE pipe to steel pipe, solving the problem of joining two different materials.
The grooved design allows you to install it quickly without welding to connect steel pipe, and the threaded design allows you to install it quickly and easily without heat fusion to connect HDPE pipe.

STAINLESS STEEL GROOVE COUPLING

Name Stainless Steel Low-Pressure Flexible Groove Coupling with rated Working Pressure- 350 psi (25 bar)

Series No. SSFGC001

Material Stainless steel CF8, CF8M, or CF3M, and super austenitic stainless steel 904L (CN2MCuN) comply with the ASTM A351 standard of the United States.
Stainless steel CE8MN complies with ASTM A890 Grade 2A, and 2205 duplex stainless steel meets the requirements of ASTM A890 Grade 4A.
2507 super duplex stainless steel complies with ASTM A890 Grade 5A, and 254SMO (CK3MCuN) super austenitic stainless steel meets the requirements of ASTM A743.

FunctionUsed in grooved piping systems for low-pressure applications, including low-pressure microfiltration, ultrafiltration, and reverse osmosis systems, municipal water supply piping systems, and grooved piping systems rated for a working pressure of 350 psi (25 bar).

Stainless Steel Medium-Pressure Flexible Groove Coupling with Rated Working Pressure- 600 psi (42 bar)

NameStainless Steel Medium-Pressure Flexible Groove Coupling with Rated Working Pressure- 600 psi (42 bar)

Series No.  SSFGC002

Material CF8, CF8M, CF3M, and 904L (CN2MCuN) super austenitic stainless steel are in compliance with the United States ASTM A351 standard.
CE8MN stainless steel is in compliance with the ASTM A890 Grade 2A standard.
2205 duplex stainless steel is in compliance with the ASTM A890 Grade 4A standard.
2507 super duplex stainless steel is in compliance with the ASTM A890 Grade 5A standard.
254SMO (CK3MCuN) super austenitic stainless steel is in compliance with the ASTM A743 standard.

Function Grooved piping systems rated for a working pressure of 600 psi (42 bar) are used in medium-pressure applications, including those associated with reverse osmosis systems.

Stainless Steel High-Pressure Groove Flexible Coupling with rated Working Pressure- 1200 psi (83 bar).

Name Stainless Steel High-Pressure Groove Flexible Coupling with rated Working Pressure- 1200 psi (83 bar)

Series No.  SSFGC003

Material 2507 super duplex stainless steel comply to ASTM A890 Grade 5A. CE8MN stainless steel comply to ASTM A890 Grade 2A. 2205 duplex stainless steel comply to ASTM A890 Grade 4A. 254SMO (CK3MCuN) comply to ASTM A743. 904L (CN2MCuN) comply to ASTM A351. CF8M and CF3M comply to ASTM A351.

FunctionPrimarily designed for high-pressure grooved piping systems, such as those used in RO (reverse osmosis) seawater desalination applications. The grooved piping system is rated for a working pressure of 1200 psi (83 bar).

Stainless Steel High-Pressure Groove Flexible Coupling with rated Working Pressure- 1500 psi (100 bar)

Name Stainless Steel High-Pressure Groove Flexible Coupling with rated Working Pressure- 1500 psi (100 bar)

Series No.  SSFGC004

Material 2507 super duplex stainless steel comply to ASTM A890 Grade 5A.
CE8MN stainless steel comply to ASTM A890 Grade 2A.
2205 duplex stainless steel comply to ASTM A890 Grade 4A.
254SMO (CK3MCuN) comply to ASTM A743.
904L (CN2MCuN), CF8M, and CF3M comply to ASTM A351.

Function Primarily designed for high-pressure grooved piping systems, such as high-salinity wastewater treatment systems, RO (reverse osmosis) seawater desalination systems, and landfill leachate treatment systems. The grooved piping system is rated for a working pressure of 1500 psi (100 bar).

Stainless steel ultra high-pressure flexible groove coupling with rated working pressure- 2320 psi (160 bar)

Name Stainless steel ultra high-pressure flexible groove coupling with rated working pressure- 2320 psi (160 bar)

Series No. SSFGC005

Material 2205 super duplex stainless steel complies with ASTM A890 Grade 4A.
CE8MN stainless steel complies with ASTM A890 Grade 2A.
2507 duplex stainless steel complies with ASTM A890 Grade 5A.
CF8M and CF3M materials comply with ASTM A351.

Function Primarily designed for ultra-high-pressure grooved piping systems, such as supercritical extraction equipment, high-salinity wastewater treatment systems, landfill leachate treatment systems, chemical wastewater treatment systems, and RO (reverse osmosis) seawater desalination systems. The grooved piping system is rated for a working pressure of 2320 psi (160 bar).

Corrosion-resistant flexible groove coupling with maximum working pressure is 300 psi (21 bar)

Name Corrosion-resistant flexible groove coupling with maximum working pressure is 300 psi (21 bar)

Series No. SSFGC006

Material nylon material

Function Focused on solving corrosion issues in low-pressure pipeline systems. Made from high-quality nylon alloy through high-temperature injection molding, the product offers excellent toughness, strength, and outstanding corrosion resistance. It is widely used in ultrafiltration (UF) membrane module systems in applications such as chemical wastewater treatment and desalination water treatment systems.

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

repair coupling

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

repair coupling-double bands

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

 

heavy duty pipe coupling

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).

Fire-resistant pipe coupling

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.

pipe coupling with pull rods to reduce axial pull strength

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.

high pressure pipe repair coupling

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.

 

restrained pipe coupling for HDPE Pipe

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.

one end restrained another end non restrained pipe coupling

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

tee pipe coupling with branch outlet

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

  1. 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.
  2. 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.
  3. 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.
  4. 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.
  5. 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.
  6. 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.
  7. 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.
  8. 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.
  9. 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.