Product Description
Product Description
Steel flexible joint is also called clamp, open expansion joint, steel flexible pipe joint. Steel flexible joint is a kind of pipe connection, reliable performance, easy to install products. At low pressure, by the elastic deformation of the sealing ring, to achieve the purpose of sealing; When the pressure increases, the medium acts on the sealing ring to play the role of self-sealing, and there is a gap between the pipe ends to compensate for the displacement and deflection of the pipe caused by thermal expansion and cold contraction.
The working temperature of the clamp joint is generally -30ºC-+130ºC. The medium property is weak acid, weak alkali and lubricating oil range can be applied. If beyond the above range can also provide our company with the nature of the medium parameters or optional parameters or optional specified rubber ring material. In addition to the connection function, the joint can also provide compensation, withstand axial force, provide Angle, reduce vibration wave, adapt to the change of foundation.
The advantages of clamp joint:
1 Clamp joint has good continuity, will not produce distortion, easy to achieve the ideal laying state.
2 Clamp pipe joint in a free state, do not bear the weight of the pipe, not subjected to external shear, especially DN200 pipe diameter, more must consider the weight of the pipe.
3. It is easy to keep the coaxial position when installing the clamp joint to ensure the uneven distribution of the radial clearance between the inner diameter of the pipe clamp and the outer diameter of the pipe. The rubber ring will be deformed under high pressure due to the large local clearance, which will affect the sealing effect and even destroy the rubber ring.
4. It is suitable for the application in the subsidence zone, which can reduce the Angle between the pipe segments caused by the subsidence of the support pier.
5 is conducive to pipeline maintenance. Turn the pipe, save labor and effort when changing the pipe.
Detailed Photos
Product Parameters
PN1.6/2.5/4.0/6.4MPa KRHD
| DN(mm) | Dw(mm) | Allowable Angle Φ |
Installation length L (mm) |
Maximal length (mm) |
Fitting bolt d×L (mm) |
| 80 | 89 | 17.90 | 100 | 110 | M12*60 |
| 100 | 108 | 15.06 | 100 | 110 | M14*60 |
| 125 | 133 | 13.05 | 105 | 115 | M14*60 |
| 150 | 159 | 12.09 | 110 | 120 | M14*60 |
| 175 | 194 | 10.51 | 110 | 120 | M16*60 |
| 200 | 219 | 9.33 | 116 | 126 | M16*75 |
| 225 | 245 | 8.36 | 122 | 132 | M16*80 |
| 250 | 273 | 7.51 | 127 | 137 | M18*90 |
| 300 | 325 | 6.32 | 130 | 140 | M18*100 |
| 350 | 377 | 5.45 | 135 | 145 | M18*100 |
| 400 | 426 | 4.80 | 140 | 150 | M18*110 |
| 450 | 480 | 4.28 | 145 | 155 | M18*110 |
| 500 | 530 | 3.88 | 150 | 160 | M18*120 |
| 600 | 630 | 3.27 | 155 | 165 | M18*120 |
| 700 | 720 | 2.86 | 160 | 170 | M20*120 |
| 800 | 820 | 2.51 | 165 | 175 | M20*130 |
| 900 | 920 | 2.24 | 170 | 180 | M20*130 |
| 1000 | 1571 | 2.02 | 175 | 185 | M20*130 |
| 1200 | 1220 | 1.69 | 180 | 190 | M22*140 |
| 1400 | 1420 | 1.45 | 185 | 195 | M22*140 |
| 1600 | 1620 | 1.27 | 190 | 200 | M22*140 |
| 1800 | 1820 | 1.13 | 195 | 205 | M22*150 |
| 2000 | 2571 | 1.01 | 200 | 210 | M24*150 |
| 2200 | 2571 | 1.01 | 205 | 215 | M24*150 |
| 2400 | 2420 | 1.01 | 210 | 220 | M24*150 |
| 2600 | 2620 | 1.01 | 215 | 225 | M24*160 |
| 2800 | 2830 | 1.01 | 220 | 230 | M27*160 |
| 3000 | 3571 | 1.01 | 225 | 230 | M27*160 |
| 3200 | 3220 | 1.01 | 230 | 240 | M27*180 |
Datas above are only for reference,if you want to know more details, please click here to contact us.
Installation Instructions
1. Prepare groove pipe sections, fittings and accessories that meet the requirements.
2. Check whether the rubber sealing ring is damaged and put it on the end of a steel pipe.
3. There should be a certain gap between the end and both ends of the steel pipe close to the end and both ends of the pipe which has been covered with rubber sealing ring. The clearance shall meet the standard requirements.
4. Put the rubber seal ring on the end of another steel pipe, make the rubber seal ring in the middle of the interface, and apply lubricant on the same side.
5. Check the axis of the pipe.
6. Install upper and lower clamps on the outer side of rubber seal-ing ring at the interface position, and clip the collar convex edge into the groove.
7. Press the upper and lower clamp ears with hand force, tighten the collar of the clamp with a wooden hammer, and tighten the upper and lower clamps tightly.
8. At the clamp screw hole position, put on the studs and tighten the nuts evenly to prevent the rubber sealing ring from wrin-kling.
9. check and comfirm that the collar convex edge is clamped into the groove.
products application
Company Profile
HangZhou Ruixuan pipeline equipment factory was founded in 1996.It is an excellent enterprise specializing in manufacturing and selling pipe fittings.It’s located in Xicun village ,HangZhou city,ZheJiang province ,the concentrated area of pipeline equipment industry in China.The company factory is located in Xicun town pipeline equipment industrial park.It covered an area of20000 square meters.
At present, the company has the production capacity of pipeline equipment with a maximum diameter of 4000mm, and its main products are: Steel expansion joint, flexible waterproof sleeve, large diameter flange, double flange force transfer expansion joint, large deflection loose sleeve compensation joint, spherical compensation joint, sleeve compensator, bellows compensator, non-metallic compensator, rubber expansion joint, DC medium no thrust sleeve compensator, flexible expansion pipe and other pipeline equipment. The annual production capacity is 30 million sets.
The flexible telescopic pipe equipment is mainly used in the pipeline crossing different geological structures under different conditions and the application of pipe installation drop, reduce or avoid the impact of geological settlement and crustal activity on the pipeline, so that the construction unit can save more than 50% of the cost when purchasing the equipment. The rubber expansion joint series products of the company, the maximum production diameter of 3600mm, have been applied in millions of units of thermal power projects in China for many times, and have been praised by the users.
The company passed ISO9001:2008 quality management system certification in 2009 and ISO14000:2004 environmental management system certification in 2009. The company has a strict quality control system, standard production process, standard factory inspection hand section, to ensure that every product meets the national standards and customer requirements.
Business philosophy: responsible production of products, return the trust of customers; To build a community with a sense of belonging and appreciate employees’ contributions; Make a contribution to the society of enterprises, give back to the good times. HangZhou Ruixuan pipeline equipment factory is willing to work with friends from all walks of life hand in hand, mutual support, create a better future!
Certifications
FAQ
Q:Can you make the product as per client’s requirement?
A:Yes, we can make it with your exact requirement.
Q:What are your payment terms?
A:T/T (30% as deposit, the rest 70% will be paid before delivery), L/C at sight.
Q:Where is your nearest loading port?
A:ZheJiang , HangZhou or ZheJiang , China.
Q:How can you guarantee the quality or any warranty?
A:If any quality problems during use, all the products can be returned or according to consumer’s requests.
Q:Do you accept small quantity order?
A:Of course we do.
Q:And what is your shipment and delivery time?
A:By sea or air. Normally 7 to 14 Days for delivery, according to your order quantity.
Minimizing Wear and Tear on Connected Components with Jaw Couplings
A jaw coupling plays a critical role in minimizing wear and tear on connected components by providing several key benefits:
- Shock Absorption: Jaw couplings have a flexible elastomeric element between the two hubs, which acts as a cushion and absorbs shocks and vibrations. When the connected machinery experiences sudden jolts or impacts, the jaw coupling helps dampen these forces, protecting the equipment from damage and reducing wear on components.
- Misalignment Compensation: In mechanical systems, misalignment between shafts is a common issue that can lead to premature wear on components. Jaw couplings can tolerate a certain degree of angular, parallel, and axial misalignment, allowing for better alignment between the driving and driven components. This feature helps distribute forces more evenly and reduces stress on connected components.
- Resilience to Overloads: Jaw couplings can withstand temporary overloads, such as starting torque or sudden load spikes, without causing damage to the connected equipment. The elastomeric element of the jaw coupling acts as a torque limiter, protecting the machinery from excessive loads and preventing wear and tear.
- Backlash Prevention: Backlash, which is the play or clearance between mating gears or components, can cause impact forces during reversing motions. Jaw couplings offer low backlash performance, reducing the potential for impact and minimizing wear on gears and other components.
- Reduced Maintenance: By providing shock absorption, misalignment compensation, overload protection, and low backlash, jaw couplings help extend the service life of connected components. This, in turn, reduces the frequency of maintenance and replacement, leading to cost savings and increased productivity.
- Smooth Power Transmission: Jaw couplings transmit power smoothly between the driving and driven shafts, resulting in less stress on components. The torsional flexibility of the elastomeric element helps prevent abrupt torque spikes, contributing to improved component longevity.
Overall, the jaw coupling’s ability to absorb shocks, compensate for misalignment, handle overloads, and provide smooth power transmission makes it an effective solution for minimizing wear and tear on connected components. Regular inspection and maintenance of the jaw coupling are still essential to ensure its optimal performance and extend the life of the entire mechanical system.
Can jaw couplings be used in servo motor and stepper motor applications?
Yes, jaw couplings can be used in both servo motor and stepper motor applications, and they are commonly employed in such systems. The key factors that make jaw couplings suitable for these motor types are their ability to handle misalignment, their torsional flexibility, and their compact and lightweight design.
In servo motor applications, jaw couplings are chosen for their high precision and responsiveness. Servo motors require couplings that can transmit torque with minimal backlash and provide accurate motion control. Jaw couplings achieve this by maintaining a tight fit between the elastomer spider and the coupling hubs, minimizing backlash and ensuring precise torque transmission. The elastomer spider also dampens vibrations and shocks, contributing to smoother motor operation and increased system stability. Additionally, the compact size and low inertia of jaw couplings make them ideal for high-speed servo motor applications where quick acceleration and deceleration are crucial.
In stepper motor applications, jaw couplings are preferred for their ability to handle misalignment. Stepper motors often have shaft misalignment due to manufacturing tolerances or other factors, and jaw couplings can accommodate both angular and parallel misalignment without imposing significant additional loads on the motor bearings. This helps to reduce wear and extend the life of the motor and coupling components. Moreover, stepper motors are commonly used in open-loop systems, where precise positioning and motion control are essential. Jaw couplings’ low backlash characteristics aid in achieving accurate positioning and eliminating any motion inaccuracies that might arise due to backlash in the coupling.
Overall, jaw couplings are well-suited for servo motor and stepper motor applications due to their precision, ability to handle misalignment, torsional flexibility, and low inertia. When selecting a jaw coupling for a specific motor application, it is essential to consider factors such as torque requirements, operating conditions, and motor specifications to ensure optimal performance and reliability in the system.
What is a Jaw Coupling and How Does It Work?
A jaw coupling is a type of mechanical coupling used to connect two shafts in machinery. It is designed to transmit torque while compensating for shaft misalignments and dampening vibrations. The coupling consists of two hubs with three curved jaws each and an elastomeric spider placed between them.
The working principle of a jaw coupling is based on the flexibility of the elastomeric spider. When the two hubs are brought together, the spider gets compressed between them. The curved shape of the jaws allows the spider to flex, accommodating angular and axial misalignments between the shafts.
During operation, when torque is applied to one shaft, it is transmitted through the spider to the other shaft, enabling power transmission. The elastomeric material of the spider also acts as a damping element, reducing vibrations and shock loads in the system.
Jaw couplings are commonly used in various applications, such as pumps, compressors, conveyors, and other power transmission systems. Their simple design, ease of installation, and ability to handle misalignments make them popular choices for connecting rotating shafts in machinery.
editor by CX 2023-10-01