Product Description
Dedicated Couplings Adaptors for Ductile Iron Pipes ISO 2531/EN545 EN 14525, ANSI/AWWA C219
Description
SYI can supply the Dedicated Couplings dedicated Couplings, dedicated to connect the ductile iron pipe (upto DN2200)
SYI Dedicated Couplings DIMENSIONS
|
CHINAMFG S. N. |
DN |
pipe O.D. |
O.D. Tolerance |
D2 |
H |
L |
Min. pipe end prepared length |
|
|
|
mm |
|||||||
|
DC40 |
40 |
56 |
+1.0 |
-3.0 |
120 |
102 |
166 |
100 |
|
DC50 |
50 |
66 |
+1.0 |
-3.0 |
126 |
102 |
166 |
100 |
|
DC60 |
60 |
77 |
+1.0 |
-3.0 |
135 |
102 |
166 |
100 |
|
DC65 |
65 |
82 |
+1.0 |
-3.0 |
156 |
102 |
166 |
100 |
|
DC80 |
80 |
98 |
+1.0 |
-3.0 |
184 |
102 |
166 |
100 |
|
DC100 |
100 |
118 |
+1.0 |
-3.0 |
205 |
102 |
166 |
100 |
|
DC125 |
125 |
144 |
+1.0 |
-3.0 |
232 |
102 |
166 |
100 |
|
DC150 |
150 |
170 |
+1.0 |
-3.0 |
264 |
102 |
173 |
100 |
|
DC200 |
200 |
222 |
+1.0 |
-3.5 |
315 |
102 |
173 |
100 |
|
DC250 |
250 |
274 |
+1.0 |
-3.5 |
374 |
102 |
173 |
100 |
|
DC300 |
300 |
326 |
+1.0 |
-3.5 |
426 |
102 |
173 |
100 |
|
DC350 |
350 |
378 |
+1.0 |
-3.5 |
494 |
152 |
254 |
150 |
|
DC400 |
400 |
429 |
+1.0 |
-4.0 |
544 |
152 |
254 |
150 |
|
DC450 |
450 |
480 |
+1.0 |
-4.0 |
595 |
152 |
254 |
150 |
|
DC500 |
500 |
532 |
+1.0 |
-4.0 |
650 |
152 |
254 |
150 |
|
DC600 |
600 |
635 |
+1.0 |
-4.5 |
753 |
152 |
254 |
150 |
|
DC700 |
700 |
738 |
+1.0 |
-4.5 |
858 |
152 |
254 |
150 |
|
DC800 |
800 |
842 |
+1.0 |
-4.5 |
962 |
152 |
254 |
150 |
|
DC900 |
900 |
945 |
+1.0 |
-5.0 |
1070 |
178 |
280 |
150 |
|
DC1000 |
1000 |
1048 |
+1.0 |
-5.0 |
1173 |
178 |
280 |
150 |
|
DC1100 |
1100 |
1152 |
+1.0 |
-6.0 |
1282 |
178 |
280 |
150 |
|
DC1200 |
1200 |
1255 |
+1.0 |
-6.0 |
1385 |
178 |
280 |
150 |
|
DC1400 |
1400 |
1462 |
+1.0 |
-6.0 |
1592 |
178 |
295 |
150 |
|
DC1500 |
1500 |
1565 |
+1.0 |
-6.0 |
1691 |
178 |
295 |
150 |
|
DC1600 |
1600 |
1668 |
+1.0 |
-6.0 |
1798 |
178 |
295 |
150 |
|
DC1800 |
1800 |
1875 |
+1.0 |
-6.0 |
2015 |
254 |
375 |
150/300 |
|
DC2000 |
2000 |
2082 |
+1.0 |
-6.0 |
2222 |
254 |
375 |
150/300 |
|
DC2200 |
2200 |
2288 |
+1.0 |
-6.0 |
2415 |
254 |
375 |
150/300 |
For other sizes not mentioned above, please contact us. We have right to change the data without further notice.
1. Material
BODY: Ductile Iron grade 500-7/450-10 in accordance with ISO 1083 or 70-50-05/65-45-12 with ASTM A536
GLAND: Ductile Iron grade 500-7/450-10 in accordance with ISO 1083 or 70-50-05/65-45-12 with ASTM A536
GASKET: Rubber E.P.D.M./SBR/NBR in accordance with EN 681.1
D-BOLTS AND NUTS: Carbon Steel Grade 8.8 with dacromet coating
2. Working Pressure: 16 Bar or 250 PSI
3. Fluid Temperature: 0°C – 50°C, excluding frost
4. Allowed Angular Deflection: 6°
5. Joint Gap:19mm
6. Coating
|
External Coatings: |
Internal Coatings: |
7.Reference Rules
Designed and tested in accordance with EN14525, ANSI/AWWA C219 and EN545
Package
Packing: Different package CHINAMFG your request,like wood cases&pallets,ply-wood crates&pallets,steel crates&pallets and etc.
Quality Control
Company Profile
CHINAMFG has continually invested in better technology and production facilities. More than 4,000 patterns
are ready. We are capable to finish all the production processes from moulding, shot-blasting, machining, coating to packaging. We have over 100,000 m2 foundry land including:
-10,000 m2 of the pattern, sand mixing, polishing, machining, hydraulic pressure, coating, packaging workshops;
-4,000 m2 of 3 green sand moulding workshops and 1 resin sand moulding workshops;
-3,000 m2 of automatic moulding machine line and epoxy coating line
-professional laboratory
-machining shop
-and our own tooling shop
Strict process and operating regulations together with perfect quality assurance system making every production step under control. All the products are subject to tests and inspections including composition analysis, metallographic examination, dimension & surface finish inspection, ring test, tensile test, hardness test, hydrostatic test, CHINAMFG and coating test to be sure that the products meet the requirements of the standards.
Since 2009, CHINAMFG Pipeline has developed from a pipes & fittings seller to a professional project solution provider, including the 1 stop service and solution from pipes, fittings, couplings & flanged adaptors, valves, fire hydrants, to water CHINAMFG and accessories.
SYI products have served 111 countries CHINAMFG up to now!
Most of these customers cooperated with CHINAMFG for more than 20 years!
We value long term cooperation relationship mostly!
Welcome to send us an inquiry for more details and price!!!
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Can Rigid Couplings Handle Misalignment Between Shafts?
Rigid couplings are not designed to handle misalignment between shafts. Unlike flexible couplings that can accommodate slight misalignment through their bending or elastic properties, rigid couplings are intended to provide a fixed and immovable connection between two shafts. As a result, any misalignment between the shafts can lead to increased stress and uneven loading on connected components.
It is essential to ensure precise alignment when using rigid couplings to avoid premature wear and failure of the system. The shafts must be perfectly aligned in both the axial and angular directions before installing the rigid coupling. Proper alignment helps distribute the load evenly and reduces stress concentration on specific areas, such as bearings and keyways.
If a system requires some level of misalignment compensation due to factors like thermal expansion or slight shaft deflection, a flexible coupling should be considered instead. Flexible couplings can tolerate small degrees of angular and axial misalignment while still transmitting torque efficiently and protecting the connected equipment from excessive stress and wear.
In summary, rigid couplings are best suited for applications where precise shaft alignment can be achieved and maintained, while flexible couplings are more appropriate for systems with potential misalignment or other dynamic factors that require some degree of flexibility.
Impact of Rigid Coupling on the Overall Reliability of Connected Equipment
A rigid coupling plays a crucial role in enhancing the overall reliability of connected equipment in mechanical systems. Here’s how it positively impacts reliability:
1. Power Transmission Efficiency: Rigid couplings provide a direct and efficient connection between the shafts of the connected equipment. With no flexible elements, there is minimal power loss, ensuring efficient power transmission from one shaft to another.
2. Elimination of Backlash: Rigid couplings have zero backlash, which is crucial in precision applications. Backlash, which is the play or clearance between connected components, can cause inaccuracies in motion control systems. With a rigid coupling, any movement is directly transferred, maintaining precise positioning.
3. Zero-Maintenance Option: Some rigid couplings are designed to be maintenance-free. They do not require lubrication or periodic adjustments, reducing downtime and ensuring continuous operation.
4. High Torque Transmission: Rigid couplings can handle high torque loads, making them suitable for heavy-duty applications. Their robust construction ensures reliable torque transmission without failure or slippage.
5. Resistant to Misalignment: While rigid couplings offer no flexibility, they are excellent at handling axial misalignment and angular misalignment, provided it falls within their design limits. This ability to tolerate some misalignment enhances reliability and reduces the risk of component damage.
6. Vibration Damping: The stiffness of rigid couplings aids in damping vibrations generated during operation. By minimizing vibrations, the coupling helps protect connected equipment from excessive stress and fatigue failure.
7. Increased System Stiffness: Rigid couplings contribute to the overall stiffness of the mechanical system. This stiffness improves the dynamic response of the system and reduces the likelihood of resonance, leading to more reliable operation.
8. Simple and Compact Design: Rigid couplings have a straightforward and compact design, which reduces the chances of component failure or wear. Their simplicity makes them easy to install and maintain, further enhancing system reliability.
9. Suitable for High-Speed Applications: Rigid couplings are well-suited for high-speed applications due to their ability to maintain accurate shaft alignment and transmit torque efficiently.
10. Compatibility with Various Industries: Rigid couplings find applications in a wide range of industries, including automotive, aerospace, manufacturing, and more. Their versatility and reliability make them a popular choice in demanding industrial environments.
Overall, the use of a properly selected and installed rigid coupling enhances the reliability of connected equipment by providing a robust and efficient connection between shafts. It ensures precise power transmission, reduced maintenance requirements, and improved system performance, leading to increased overall reliability and uptime of the mechanical system.
What is a Rigid Coupling and How Does it Work?
A rigid coupling is a type of mechanical coupling used to connect two shafts together at their ends to transmit torque and rotational motion without any flexibility or misalignment accommodation. Unlike flexible couplings, rigid couplings do not allow for angular, parallel, or axial misalignment between the shafts. The main purpose of a rigid coupling is to provide a strong and solid connection between two shafts, ensuring precise and synchronous power transmission between them.
Structure and Design:
Rigid couplings are typically made from durable materials such as steel, stainless steel, or aluminum, which can withstand high torque and load applications. The coupling consists of two halves, each with a cylindrical bore that fits tightly onto the respective shafts. The two halves are then fastened together using bolts or set screws to ensure a secure and rigid connection.
Working Principle:
The working principle of a rigid coupling is straightforward. When the two shafts are aligned precisely and the coupling is securely fastened, any torque applied to one shaft gets directly transferred to the other shaft. The rigid coupling essentially makes the two shafts act as one continuous shaft, allowing for synchronous rotation without any relative movement or play between them.
Applications:
Rigid couplings are commonly used in applications where precise alignment and torque transmission are essential. Some common applications of rigid couplings include:
- High-precision machinery and equipment
- Robotics and automation systems
- Precision motion control systems
- Machine tools
- Shaft-driven pumps and compressors
Advantages:
The key advantages of using rigid couplings include:
- High Torque Transmission: Rigid couplings can handle high torque and power transmission without any loss due to flexibility.
- Precision: They provide accurate and synchronous rotation between the shafts, making them suitable for precise applications.
- Simple Design: Rigid couplings have a simple design with minimal moving parts, making them easy to install and maintain.
- Cost-Effective: Compared to some other coupling types, rigid couplings are generally more cost-effective.
Limitations:
Despite their advantages, rigid couplings have certain limitations:
- No Misalignment Compensation: Rigid couplings cannot accommodate any misalignment between the shafts, making precise alignment during installation crucial.
- Transmits Vibrations: Since rigid couplings do not dampen vibrations, they can transmit vibrations and shocks from one shaft to the other.
- Stress Concentration: In some applications, rigid couplings can create stress concentration at the ends of the shafts.
In summary, rigid couplings are ideal for applications that require precise alignment and high torque transmission. They offer a robust and straightforward solution for connecting shafts and ensuring synchronous power transmission without any flexibility or misalignment accommodation.
editor by CX 2024-05-16