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.

  /* 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

Contribution of Jaw Coupling to Equipment Longevity

Jaw couplings play a vital role in enhancing the longevity and reliability of connected equipment in mechanical power transmission systems. The design and features of jaw couplings contribute to minimizing wear, reducing downtime, and protecting the equipment from harmful forces. Here's how jaw couplings contribute to equipment longevity:

• Shock Absorption: Jaw couplings have elastomeric spider inserts that act as shock absorbers, dampening vibrations and impact loads. This helps in protecting the connected equipment from sudden shocks and extends its operational life.
• Misalignment Compensation: In real-world applications, shaft misalignment is common due to thermal expansion, machine settling, or manufacturing tolerances. Jaw couplings can tolerate a certain degree of misalignment, reducing stress on bearings, seals, and other components of the equipment.
• Overload Protection: During overloads or torque spikes, jaw couplings can flex slightly, absorbing excess torque and preventing damage to the equipment. This overload protection feature prevents catastrophic failures and extends the life of mechanical components.
• Backlash Reduction: Excessive backlash in a power transmission system can lead to inaccuracies in motion control and wear on components. Jaw couplings are designed to provide low backlash, enhancing precision and minimizing wear on gears and other sensitive parts.
• Resilience to Contaminants: Jaw couplings often feature enclosed designs that protect the elastomeric spider from contaminants like dust, dirt, and moisture. This helps in maintaining the coupling's performance and preventing premature failure due to external elements.
• Low Maintenance: Compared to some other types of couplings, jaw couplings require minimal maintenance. Regular lubrication and inspection of the coupling can significantly extend its life and keep the connected equipment running smoothly.
• Easy Installation: The simple and compact design of jaw couplings makes them easy to install and integrate into various mechanical systems. Proper installation ensures efficient power transmission and reduces the chances of component damage.

Overall, jaw couplings contribute to equipment longevity by providing protection against shock loads, compensating for misalignment, preventing overloads, reducing backlash, and offering resilience to environmental factors. By selecting the right jaw coupling for the application and following proper maintenance practices, users can maximize the lifespan of connected equipment and improve the overall efficiency of their mechanical systems.

Can jaw couplings be used in applications with high shock and impact loads?

Yes, jaw couplings can be used in applications with high shock and impact loads, but their suitability depends on the specific design and construction of the coupling as well as the magnitude and frequency of the shock and impact loads. Jaw couplings are known for their ability to handle certain levels of shock and vibration due to the presence of the elastomer spider, which acts as a damping element to absorb and dissipate vibrations. However, there are some important considerations to take into account when using jaw couplings in high shock and impact load applications:

1. Coupling Material: The choice of coupling material is crucial in applications with high shock and impact loads. Couplings made from robust materials, such as steel or alloy, provide better resistance to deformation and can handle higher impact forces compared to couplings made from less sturdy materials.
2. Elastomer Spider: The elastomer spider is the central element of the jaw coupling and is responsible for absorbing shocks and vibrations. It is essential to select an elastomer spider with the appropriate hardness and resilience for the specific application. Harder elastomers can withstand higher loads but may transmit more vibration, while softer elastomers offer better shock absorption but have lower torque capacity. Choosing the right elastomer hardness is a trade-off between shock absorption and torque transmission requirements.
3. Operating Conditions: Consider the operating conditions, such as the frequency and magnitude of shock and impact loads, when selecting a jaw coupling. For applications with intermittent or occasional shock loads, standard jaw couplings with moderate shock absorption capabilities may suffice. However, for continuous or severe shock loads, specialized high-torque jaw couplings with enhanced shock absorption properties might be more suitable.
4. Regular Maintenance: In high shock and impact load applications, it is crucial to perform regular maintenance and inspections to identify any signs of wear, fatigue, or damage to the coupling components. Regular maintenance ensures that the coupling remains in good working condition and minimizes the risk of unexpected failures due to excessive loading.
5. Consider Alternative Couplings: While jaw couplings can handle certain levels of shock and impact loads, some applications with exceptionally high loads may require more specialized couplings, such as grid couplings, gear couplings, or disc couplings. These couplings are designed explicitly for heavy-duty applications with high shock and impact loads and can offer superior performance and reliability under such conditions.

In conclusion, jaw couplings can be used in applications with high shock and impact loads, but the specific coupling design, material, elastomer hardness, and operating conditions must be carefully considered. Proper selection, installation, and maintenance of the coupling are essential to ensure reliable performance and longevity in challenging operating environments with significant shock and impact loads.

Maintenance Requirements for Jaw Couplings

Jaw couplings are relatively low-maintenance components, but regular inspections and preventive measures can help ensure their optimal performance and longevity. Here are the maintenance requirements for jaw couplings:

• Visual Inspections: Regularly inspect the jaw coupling for signs of wear, damage, or misalignment. Look for cracks, chips, or deformation in the elastomeric spider, hubs, and other components.
• Lubrication: Some jaw couplings require periodic lubrication of the elastomeric spider to prevent dry rot and ensure flexibility. Refer to the manufacturer's guidelines for the appropriate lubrication schedule and type.
• Tighten Fasteners: Check and tighten all fasteners, including set screws, regularly to prevent coupling slippage and maintain a secure connection between the shafts and hubs.
• Alignment: Ensure that the shafts connected by the jaw coupling are properly aligned. Excessive misalignment can lead to premature wear and failure of the elastomeric spider.
• Replace Worn Parts: If any component of the jaw coupling shows signs of wear beyond acceptable limits, promptly replace it to avoid further damage and potential system failure.
• Operating Conditions: Monitor the operating conditions of the machinery to prevent overheating or overloading, which can affect the performance and life of the coupling.

Following these maintenance practices can extend the life of the jaw coupling, reduce the risk of unexpected failures, and contribute to the overall reliability of the mechanical system.

editor by CX 2024-03-10