China Hot selling CHINAMFG Js3500 Series Half Demount Flexible Grid Couplings Simple Structure High Quality

Product Description

JS3500 Series Half Demount Flexible Grid Couplings

♦Description

The flexible nature of the spring-like mesh reduces the magnitude of CHINAMFG loads by dissipating and absorbing impact energy over time, and the short-term overload capacity is twice the rated torque, greatly increasing mesh coupling torque.

Widely used in heavy machinery and general machinery.

Allows higher speeds with good axial, radial and angular compensation capabilities.

High transmission efficiency. The transmission efficiency is as high as 99.47%.

Simple structure and convenient disassembly and assembly.

Good damping effect to avoid resonance.

♦Basic Parameter and Main Dimension

Type	Norminal Torque Nm	Permit Speed  r/min	Hole d1,d2		D	BE		A	F	L	Clearance K	Grease Kg	Without bore Weight Kg
			max	min		min	max
JS3501	45	3600	28	14	98	45	100	40	40	52	3	0.03	2.9
JS3502	125	3600	35	14	110	45	110	50	40	52	3	0.03	3.9
JS3503	224	3600	42	14	120	45	110	55	41	52	3	0.06	5.9
JS3504	400	3600	48	14	138	55	110	65	45	62	3	0.06	9
JS3505	630	3600	55	19	155	65	165	75	52	62	3	0.09	13.5
JS3506	900	3600	65	19	170	65	165	90	55	62	3	0.09	17.5
JS3507	1800	3500	75	28	195	95	205	105	66	112	4	0.17	28.5
JS3508	3150	3500	85	28	212	95	205	125	70	112	4	0.26	42.5
JS3509	5600	2450	100	42	248	105	205	140		142	6	0.43	70.5
JS3510	8000	2300	110	42	274	105	205	160		142	6	0.51	95
JS3511	12500	2000	125	60	324	125	205	180		142	6	0.74	138
JS3512	18000	1800	150	70	368	130	205	220		172	6	0.91	187
JS3513	25000	1600	180	70	400	135	205	255		172	6	1.14	257
JS3514	35500	1500	200	110	458	175	190	270		212	6	1.9	340
JS3515	50000	1300	220	120	500	180	205	305		212	6	2.8	430
JS3516	63000	1200	250	130	565	195	225	360		252	6	3.5	636
JS3517	90000	1100	275		610	200	250	395		252	6	3.7	852
JS3518	125000	1000	305		675	210	270	440		302	6	4.4	1118
JS3519	180000	900	330		755	225	290	500		302	6	5.6	1445

Note: d1 is specified as the molecule(active end dimension) in the marking example, please specify otherwise if the user has special requirements. 

♦Other Products List

Transmission Machinery  Parts Name	Model
Universal Coupling	WS,WSD,WSP
Cardan Shaft	SWC,SWP,SWZ
Tooth Coupling	CL,CLZ,GCLD,GIICL, GICL,NGCL,GGCL,GCLK
Disc Coupling	JMI,JMIJ,JMII,JMIIJ
High Flexible Coupling	LM
Chain Coupling	GL
Jaw Coupling	LT
Grid Coupling	JS

♦Our Company

HangZhou CHINAMFG Machinery Manufacturing Co., Ltd. is a high-tech enterprise specializing in the design and manufacture of various types of coupling. There are 86 employees in our company, including 2 senior engineers and no fewer than 20 mechanical design and manufacture, heat treatment, welding, and other professionals.
Advanced and reasonable process, complete detection means. Our company actively introduces foreign advanced technology and equipment, on the basis of the condition, we make full use of the advantage and do more research and innovation. Strict to high quality and operate strictly in accordance with the ISO9000 quality certification system standard mode.
Our company supplies different kinds of products. High quality and reasonable price. We stick to the principle of “quality first, service first, continuous improvement and innovation to meet the customers” for the management and “zero defect, zero complaints” as the quality objective. 

 

♦Our Services
1.Design Services
Our design team has experience in cardan shaft relating to product design and development. If you have any needs for your new product or wish to make further improvements, we are here to offer our support.

2.Product Services
Raw materials → Cutting → Forging →Rough machining →Shot blasting →Heat treatment →Testing →Fashioning →Cleaning→ Assembly→ Packing→ Shipping

3.Samples Procedure
We could develop the sample according to your requirement and amend the sample constantly to meet your need.

4.Research & Development
We usually research the new needs of the market and develop the new model when there is new cars in the market.

5.Quality Control
Every step should be special test by Professional Staff according to the standard of ISO9001 and TS16949.

♦FAQ
Q 1: Are you trading company or manufacturer?
A: We are a professional manufacturer specializing in manufacturing various series of couplings.

Q 2: Can you do OEM?
Yes, we can. We can do OEM & ODM for all the customers with customized artworks of PDF or AI format.

Q 3: How long is your delivery time?
Generally it is 20-30 days if the goods are not in stock. It is according to quantity.

Q 4: Do you provide samples? Is it free or extra ?
Yes, we could offer the sample but not for free.Actually we have a very good price principle, when you make the bulk order then cost of sample will be deducted.

Q 5: How long is your warranty?
A: Our Warranty is 12 months under normal circumstance.

Q 6: What is the MOQ?
A: Usually our MOQ is 1 pcs.

Q 7: Do you have inspection procedures for coupling ?
A: 100% self-inspection before packing.

Q 8: Can I have a visit to your factory before the order?
A: Sure,welcome to visit our factory.

Q 9: What’s your payment?
A: T/T. 

♦Contact Us

Web: huadingcoupling
Add: No.11 HangZhou Road,Chengnan park,HangZhou City,ZheJiang Province,China

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Are there Specific Safety Considerations when Using Half Couplings in High-Pressure Systems?

Yes, there are specific safety considerations to keep in mind when using half couplings in high-pressure systems. High-pressure applications pose unique challenges, and it is crucial to follow safety protocols to prevent potential hazards and ensure the integrity of the piping or plumbing system. Here are the key safety considerations:

• Pressure Ratings: Ensure that the half couplings used in high-pressure systems are rated for the intended pressure levels. Half couplings have specific pressure ratings based on their design and material. Exceeding these ratings can lead to coupling failure and catastrophic leaks.
• Material Selection: Choose half couplings made from suitable materials capable of withstanding the pressures and conditions of the system. High-pressure applications often require stronger and more durable materials, such as stainless steel or high-grade alloys.
• Proper Installation: Accurate and proper installation is critical in high-pressure systems. Follow the manufacturer’s guidelines and industry best practices during installation to ensure a secure and leak-free connection. Improper installation can lead to coupling failure under pressure.
• Weld Quality: For socket weld and butt weld half couplings, the quality of the weld is paramount in high-pressure systems. Only qualified welders should perform the welding, and the welds must be thoroughly inspected to ensure they meet the necessary standards for strength and integrity.
• Inspections and Testing: Regularly inspect the half couplings and the entire system for signs of wear, damage, or leaks. Implement non-destructive testing methods to assess the integrity of the couplings and welds. Pressure testing the system periodically can help identify potential weaknesses and ensure its reliability.
• Temperature Considerations: High-pressure systems can generate significant heat, and temperature fluctuations can impact the integrity of the couplings. Ensure that the chosen materials can handle the temperature variations experienced in the system without compromising their strength and performance.
• Stress Analysis: Conduct stress analysis of the piping system to identify potential stress points and ensure that the half couplings can handle the applied stresses. Proper support and anchoring of the system can reduce the stress on the couplings and prevent failures.
• Training and Safety Protocols: Ensure that personnel working with high-pressure systems are well-trained and aware of the safety protocols. They should understand the potential risks associated with the system and know how to respond to emergencies or leaks effectively.
• Emergency Shutdown Procedures: Establish clear and effective emergency shutdown procedures in case of unforeseen incidents. This can help minimize damage and risks to personnel in the event of a coupling failure or system breach.

By taking these safety considerations into account, operators can mitigate the risks associated with using half couplings in high-pressure systems. Proper planning, material selection, installation, and maintenance are key to ensuring the safe and reliable operation of the system under high pressure.

How do you Select the Right Half Coupling Material Based on the Fluid or Gas being Conveyed?

Choosing the appropriate material for half couplings is essential to ensure their compatibility with the fluid or gas being conveyed. The selection process involves considering several factors related to the nature of the conveyed substance and the specific operating conditions. Here’s a step-by-step guide on how to select the right half coupling material:

1. Identify the Conveyed Fluid or Gas: Determine the type of fluid or gas that will flow through the piping system. Different materials may be required depending on whether the conveyed substance is water, oil, gas, chemicals, steam, or any other medium.
2. Consider the Chemical Compatibility: Evaluate the chemical properties of the conveyed substance. Some fluids or gases can be corrosive or reactive with certain materials. Look for half coupling materials that are chemically resistant to the specific medium to prevent degradation or premature failure.
3. Assess the Temperature and Pressure: Take into account the operating temperature and pressure of the system. High-temperature fluids or gases may require materials with excellent heat resistance, while high-pressure applications demand strong and durable coupling materials that can withstand the stress.
4. Check for Abrasion or Erosion: In systems where the conveyed substance contains solid particles or abrasive materials, consider half coupling materials with good wear resistance to prevent premature wear and damage to the coupling surface.
5. Verify Material Standards: Ensure that the selected half coupling material complies with relevant industry standards such as ASTM, ASME, API, or ISO. These standards define the material’s properties and performance criteria, providing a reliable benchmark for quality and suitability.
6. Consider Environmental Conditions: Evaluate the environmental factors that can affect the coupling’s performance, such as humidity, UV exposure, or exposure to harsh chemicals. Choose materials with appropriate coatings or properties to withstand the specific environmental conditions.
7. Factor in Cost and Availability: Balancing performance requirements with cost considerations is essential. Select a half coupling material that meets the necessary performance criteria while fitting within the project’s budget. Additionally, ensure that the chosen material is readily available for procurement.

Common materials used for half couplings include carbon steel, stainless steel, alloy steel, brass, bronze, and various plastics such as PVC, CPVC, and PTFE. Each material has its advantages and limitations, making the selection process critical for a successful and reliable piping system.

By carefully considering the conveyed fluid or gas, chemical compatibility, temperature, pressure, abrasion resistance, and other relevant factors, you can make an informed decision and select the right half coupling material that will ensure a safe and efficient operation of the piping system.

What is a Half Coupling and How is it Used in Piping and Plumbing Systems?

A half coupling is a type of pipe fitting used in piping and plumbing systems to connect two pipes of different sizes. It is a short, threaded piece with one end designed to be welded or screwed onto a larger pipe, and the other end allows for the attachment of a smaller pipe. The half coupling has internal threads on one end and a plain or beveled surface on the other end.

Half couplings are typically made from materials such as stainless steel, carbon steel, brass, or other suitable alloys, depending on the application and the medium being transported through the pipes.

In piping systems, half couplings are used for various purposes:

1. Reducing Pipe Size: One common use of half couplings is to reduce the pipe size at a specific point in the system. For example, when a large pipe needs to be connected to a smaller pipe, a half coupling can be employed to create a smooth transition.
2. Connection Points: Half couplings are often used at connection points where equipment, valves, or instruments are attached to the pipeline. They provide a secure and leak-proof joint.
3. Repair and Maintenance: In the event of a pipe section damage, a half coupling can be used to cut out the damaged portion and replace it with a new pipe, facilitating quick repairs without the need to replace the entire pipeline.

The installation of a half coupling involves a few simple steps:

1. Cutting and Preparing the Pipe: The larger pipe, to which the half coupling will be attached, is cut to the desired length, and the edge is cleaned and beveled to ensure a proper welding or threading joint.
2. Attaching the Half Coupling: The half coupling is then welded or screwed onto the larger pipe end. For welding, proper welding techniques and safety measures must be followed to achieve a strong, reliable joint.
3. Connecting the Smaller Pipe: The smaller pipe is threaded or inserted into the other end of the half coupling. The connection is tightened to ensure a secure fit, and sealing materials like Teflon tape or thread sealant may be used to prevent leaks.

In plumbing systems, half couplings serve similar functions, connecting different pipes or fixtures of various sizes. The installation process may vary slightly, depending on the type of plumbing materials and the specific application.

In summary, half couplings are essential components in piping and plumbing systems, enabling the connection of pipes with different diameters and facilitating repairs or adding connection points with ease and efficiency.

editor by CX 2024-04-03