Product Description

Product Description

A grooved reducing flex joint is a mechanical pipe joint that allows pipes of different diameters to be joined while providing a degree of flexibility. These couplings consist of 2 grooved end fittings and a flexible gasket or sleeve that is installed on the pipe. Grooves on the pipe ends provide a strong mechanical connection when the fitting is tightened.

Application:
Grooved reducing flexible joints are commonly used in a variety of piping systems such as:

CHINAMFG (Heating, Ventilation, and Air Conditioning): Used to connect ducts in CHINAMFG systems where flexibility may be required due to thermal expansion and contraction.

Fire Protection Systems: Typically used in fire sprinkler systems to connect pipes of different sizes while allowing for movement due to temperature changes.

Water and Wastewater Systems: For water and drainage systems where flexibility and ease of installation are important.

Industrial Piping: Used in industrial applications where grooved coupling systems are favored for their simplicity and speed of installation.

Material standards for groove couplings:
Material standards for grooved couplings are often set by industry organizations and standards bodies. The material used for grooved joints is usually ductile iron, but stainless steel and other materials can also be used, depending on the application and specific requirements.

Standards governing grooved couplings include:

ANSI/AWWA C606 – Groove and Shoulder Joints for Ductile Iron Pressure Piping and Fittings: This standard covers groove and shoulder joints for ductile iron pressure piping, fittings, and other components.

ASTM A536 – Standard Specification for Ductile Iron Castings: This standard covers compositional, mechanical, and other requirements for ductile iron castings.

NFPA 13 – Standard for Installation of Sprinkler Systems: This standard, published by the National Fire Protection Association, provides guidance for the installation of sprinkler systems, including the use of grooved joints.

Nominal Size mm/in	Pipe O.D mm	Working Pressure PSI/Mpa	Dimensions      mm			Bolt Size	Certificate
			L	H	W	NO.-Size mm
65X50/212X2	73X60	300/2.07	143	102	45	M10X65	FM  UL
65X50/30DX2	76X60	300/2.07	143	102	45	M10X65	FM  UL
80X50/3X2	89X60	300/2.07	163	118	47	M12X70	FMUL
80X65/3X212	89X73	300/2.07	163	118	47	M12X70	FMUL
100X50/4X2	114X60	300/2.07	200	150	50	M12X70	FMUL
100X65/4X212	114X73	300/2.07	200	150	50	M12X70	FM  UL
100X65/4X3OD	114X76	300/2.07	200	150	50	M12X70	FM  UL
100X80/4X3	114X89	300/2.07	200	150	50	M12X70	FMUL
150X100/612ODX4	165X114	300/2.07	270	200	51	M16X85	FM  UL
150X80/6X3	168X89	300/2.07	270	200	51	M16X85	FMUL
150X100/6X4	168X114	300/2.07	270	200	51	M16X85	FM  UL
200X150/8X612OD	219X165	300/2.07	335	260	63	M20X110	FM  UL
200X150/8X6	219X168	300/2.07	335	260	63	M20X110	FMUL

Quality Control:

what is the rigid and flexible Coupling difference?

Coupling play an important role in connecting pipe segments to prevent leaks caused by damaged or damaged joints while maintaining the integrity of the pipe in the process. It is a very suitable fitting for the pipe and pipe industry. Most pipe installations require multiple pipe sections to be joined together or cut to facilitate changing direction and traversing obstacles. A fitting is a concise pipe or pipe. It has a socket or female thread at 1 or both ends. Fitting allows 2 pipes or pipes of the same or different sizes to be joined together to form a long pipe.

Flexible coupling
Flexible couplings are designed to transmit torque while allowing some radial, axial and angular misalignment. They can accommodate angular misalignment of up to a few degrees and some parallel misalignment. Elastic couplings allow for some angular misalignment and axial movement, meaning they can be used to create smooth bends and absorb thermal expansion contractions in piping systems. In some cases, the use of elastic couplings can even exclude conventional expansion joints, loops and other expansion devices from the system entirely. When assembling a stretch rubber gasket, the gasket is slightly smaller than the pipe diameter at both pipe ends and produces the first seal. The 2 halves of the coupling are then placed around the washers that adapt to them. The coupling halves are bolted together to further improve the seal.

FAQ

1. What is the minimum quantity of the order? 
Answer: The purchase volume of mixed products is 4 tons

2. How long is the delivery time of the order?
Answer: The delivery time for general orders is about 30 days. If the order is urgent and we have stock, around 7 days.

3. What payment methods do you accept?
Answer: We accept payment terms such as TT, L/C, DP, Western Union, Paypal, etc.

4. Where is your departure port of shipment? Is it possible to deliver to the designated warehouse?
Answer: The port of departure of our goods is generally ZheJiang Port or HangZhou Port. We can transport the goods to designated warehouses, such as HangZhou, HangZhou, etc.

5. What certificates do your products have?
Answer: Our products have FM/UL certificates, and we cooperate with third-party quality inspection certification before the factory, such as SGS,TUV

6.What are the series of your products?
Answer: Our products are divided into heavy series, medium series and light series according to different markets and standards. In order to buy more competitive products for you, please communicate your purchasing needs with the salesperson.

7. Do product packaging cartons and labels support customization?
Answer: Packaging cartons and labels can be customized according to customer requirements.

8.Does the purchased product support customization?
Answer: The product supports customization, but there are purchase quantity requirements and mold costs. For details, please consult the salesperson.

9.What are the packaging methods of the product?
Answer: The packaging of the product includes carton packaging, pallet packaging, wooden box packaging, and woven bag packaging.
/* January 22, 2571 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1

View More

What are the key features to look for when purchasing a flexible coupling?

When purchasing a flexible coupling, several key features should be considered to ensure it meets the specific requirements of the application and provides reliable performance. The following are the key features to look for:

• 1. Type of Coupling: There are different types of flexible couplings available, such as jaw couplings, beam couplings, bellows couplings, disc couplings, and more. Each type has its advantages and limitations, so choosing the right type depends on factors like misalignment compensation needed, torque capacity, and application requirements.
• 2. Material: The material of the coupling is crucial for its durability and performance. Common materials include stainless steel, aluminum, steel, and various elastomers. Select a material that can withstand the environmental conditions, loads, and temperature ranges of the application.
• 3. Size and Dimensions: Ensure that the coupling’s size and dimensions match the shaft sizes and available space in the system. Oversized or undersized couplings may lead to inefficiencies, misalignment, and reduced performance.
• 4. Torque Rating: Consider the maximum torque the coupling can handle to ensure it can transmit the required power without failure or damage.
• 5. Speed Rating: Check the coupling’s maximum rotational speed capability to ensure it can handle the desired operating speed without issues.
• 6. Misalignment Compensation: Different couplings offer varying degrees of misalignment compensation, such as angular, parallel, and axial misalignment. Choose a coupling that can accommodate the expected misalignments in the system.
• 7. Backlash: For precision applications, consider couplings with minimal or zero-backlash to prevent motion inaccuracies and ensure precise positioning.
• 8. Operating Environment: Assess the environmental conditions, including temperature, humidity, dust, and chemical exposure, and select a coupling with suitable resistance to these factors.
• 9. Maintenance: Decide whether maintenance-free couplings or those requiring periodic lubrication align better with the application’s requirements and maintenance schedule.
• 10. Electrical Isolation: If required, choose couplings with electrical isolation features to prevent current flow between connected shafts.
• 11. Dynamic Behavior: Evaluate the coupling’s dynamic performance, including resonance and damping characteristics, to ensure smooth operation under various loads and speeds.
• 12. Application Compatibility: Verify that the selected coupling is suitable for the specific application, such as pumps, compressors, robotics, automation, or other industrial processes.

Summary: When purchasing a flexible coupling, consider factors such as the type of coupling, material, size, torque rating, speed rating, misalignment compensation, backlash, operating environment, maintenance, electrical isolation, dynamic behavior, and application compatibility. Careful consideration of these features will ensure that the coupling meets the demands of the application, provides reliable performance, and contributes to the overall efficiency of the mechanical system.

Can flexible couplings accommodate both radial and axial loads simultaneously?

Yes, flexible couplings are designed to accommodate both radial and axial loads simultaneously, making them versatile for various mechanical systems. The ability to handle these loads is one of the key advantages of using flexible couplings in power transmission applications. Here’s how they manage both types of loads:

• Radial Loads: Radial loads act perpendicular to the shaft’s axis and can arise from forces that are not in line with the shaft, such as belt tension or bearing loads. Flexible couplings can handle radial loads due to their flexibility and ability to bend or deform slightly, redistributing the radial forces and minimizing the impact on the connected equipment.
• Axial Loads: Axial loads act along the shaft’s axis and are common in applications with thrust forces or axial movements. Flexible couplings can accommodate axial loads through their axial flexibility, allowing slight axial displacement without transmitting excessive forces to the connected components.
• Angular Misalignment: Besides radial and axial loads, flexible couplings can also handle angular misalignment between the shafts. Angular misalignment occurs when the shafts are not perfectly aligned, and flexible couplings can compensate for this misalignment, reducing wear and stress on the connected machinery.

By accommodating both radial and axial loads, flexible couplings help prevent premature wear, reduce the risk of equipment damage, and contribute to smoother and more efficient power transmission. When selecting a flexible coupling for an application, it is essential to consider the expected radial and axial loads, as well as the required level of misalignment compensation to ensure optimal performance and longevity of the coupling and the connected equipment.

Can flexible couplings handle misalignment between shafts?

Yes, flexible couplings are specifically designed to handle misalignment between shafts in rotating machinery and mechanical systems. Misalignment can occur due to various factors, including installation errors, thermal expansion, manufacturing tolerances, or shaft deflection during operation.

Flexible couplings offer the ability to compensate for different types of misalignment, including:

• Angular Misalignment: When the shafts are not collinear and have an angular offset, flexible couplings can accommodate this misalignment by flexing or twisting, allowing the two shafts to remain connected while transmitting torque smoothly.
• Parallel Misalignment: Parallel misalignment occurs when the two shafts are not perfectly aligned along their axes. Flexible couplings can adjust to this misalignment, ensuring that the shafts remain connected and capable of transmitting power efficiently.
• Axial Misalignment: Axial misalignment, also known as end float or axial displacement, refers to the relative axial movement of the two shafts. Some flexible coupling designs can accommodate axial misalignment, allowing for slight axial movements without disengaging the coupling.

The ability of flexible couplings to handle misalignment is essential in preventing premature wear and failure of the connected equipment. By compensating for misalignment, flexible couplings reduce the stress on the shafts, bearings, and seals, extending the service life of these components and improving overall system reliability.

It is crucial to select the appropriate type of flexible coupling based on the specific misalignment requirements of the application. Different coupling designs offer varying degrees of misalignment compensation, and the choice depends on factors such as the magnitude and type of misalignment, the torque requirements, and the operating environment.

In summary, flexible couplings play a vital role in handling misalignment between shafts, ensuring efficient power transmission and protecting mechanical systems from the adverse effects of misalignment. Their ability to accommodate misalignment makes them indispensable components in various industrial, automotive, aerospace, and marine applications.

editor by CX 2024-05-13