Product Description

1, Universal Coupling are mainly used for transferring drinkable water, waste water and for irrigation.

2, Standard: ISO2531, EN545, EN598
3, Coating: Metallic zinc spray with Bituminous Coating (Outside) Cement CHINAMFG CHINAMFG (Inside). Epoxy coating available CHINAMFG request.
4, Various joint method available: Push-on
5, Material: Ductile Iron GGG 400-10
Product ranging from: 80mm- 2000mm

Angle valve valve can be supplied with extension spindle and service box.

the length of extension spindle is telescope and can be option
this extension spindle can be mounted on resilient gate valve DIN3352 F4, F5, BS5163, AWWA C509/515, SABS664, socketed ends gate valve, spigot end gate valve, etc.

Angle valve valve can be supplied with extension spindle and service box.
the length of extension spindle is telescope and can be option
this extension spindle can be mounted on resilient gate valve DIN3352 F4, F5, BS5163, AWWA C509/515, SABS664, socketed ends gate valve, spigot end gate valve, etc.
Angle valve valve can be supplied with extension spindle and service box.
the length of extension spindle is telescope and can be option
this extension spindle can be mounted on resilient gate valve DIN3352 F4, F5, BS5163, AWWA C509/515, SABS664, socketed ends gate valve, spigot end gate valve, etc.
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Can Flange Couplings Be Used in Applications with Varying Operating Temperatures?

Yes, flange couplings can be used in applications with varying operating temperatures. However, the selection of the appropriate flange coupling material is essential to ensure reliable performance and longevity under these conditions.

The operating temperature of a flange coupling depends on several factors, including the type of material used, the surrounding environment, and the specific application. Here are some key considerations:

• Temperature Rating of Material: Flange couplings are available in various materials, such as steel, stainless steel, aluminum, and different alloys. Each material has its temperature rating, which indicates the maximum temperature the coupling can handle without compromising its mechanical properties. It is crucial to select a flange coupling made from a material that can withstand the highest expected operating temperature in the application.
• Thermal Expansion: Temperature variations can cause thermal expansion and contraction of the connected equipment and shafts. Flange couplings must be able to accommodate these changes in length without imposing excessive forces on the machinery. Flexible couplings with certain designs, such as those with elastomeric elements, can better handle thermal expansion and help minimize stress on the system.
• Lubrication: Operating at high temperatures may require the use of specialized high-temperature lubricants to ensure smooth operation and reduce friction and wear between the coupling’s moving parts. Proper lubrication is essential to prevent premature failure and to maintain the coupling’s performance over time.
• Environmental Factors: The surrounding environment can also influence the operating temperature of the flange coupling. For example, couplings used in industrial settings may be exposed to hot processes or elevated ambient temperatures. In such cases, the coupling’s material and design should be selected to withstand the specific environmental conditions.

It is crucial to consult the manufacturer’s guidelines and technical specifications to determine the suitable temperature range for a particular flange coupling model. Additionally, considering the application’s operating conditions, including temperature variations, helps in choosing the right flange coupling to ensure reliable and safe performance in a wide range of temperature environments.

Can Flange Couplings Be Used in Food Processing and Pharmaceutical Industries?

Yes, flange couplings can be used in food processing and pharmaceutical industries, provided they meet certain requirements and standards to ensure hygiene and product safety. These industries have stringent regulations and guidelines to prevent contamination and maintain the quality and purity of their products. When selecting flange couplings for such applications, several considerations must be taken into account:

• Material Selection: The flange coupling material must be food-grade or pharmaceutical-grade and comply with industry-specific regulations. Stainless steel, particularly austenitic grades like 316L, is commonly used due to its excellent corrosion resistance and ease of cleaning.
• Hygienic Design: Flange couplings for these industries should have a hygienic design that minimizes crevices, dead spaces, and surface roughness where bacteria or contaminants could accumulate. Smooth surfaces and seamless construction help facilitate thorough cleaning and sterilization.
• Sealing and Lubrication: Proper sealing is essential to prevent any potential leaks or ingress of contaminants. Food-grade or pharmaceutical-grade lubricants should be used to ensure that there is no risk of contamination from the coupling’s lubrication.
• Certifications and Compliance: Flange couplings intended for use in food processing and pharmaceutical industries should have relevant certifications, such as FDA (U.S. Food and Drug Administration) approval, EU regulations (e.g., EC No. 1935/2004), and compliance with industry standards like 3-A Sanitary Standards.
• Cleanability: Flange couplings should be designed for easy disassembly and cleaning to maintain the required hygiene standards. This may involve quick-release or tool-less designs that allow for frequent inspection and cleaning without impeding production processes.
• Resistant to Corrosive Cleaning Agents: In food processing and pharmaceutical industries, aggressive cleaning agents may be used. The flange coupling material should be resistant to these substances to avoid degradation and maintain the coupling’s integrity over time.

By meeting these criteria, flange couplings can be safely used in food processing and pharmaceutical applications without compromising product quality or safety. It is crucial to work with reputable manufacturers or suppliers who understand the specific requirements of these industries and can provide couplings that adhere to the necessary standards.

Types of Flange Coupling Designs

Flange couplings are mechanical devices used to connect two shafts and transmit torque between them. They come in various designs, each suited for specific applications. Here are the different types of flange coupling designs:

• 1. Unprotected Flange Coupling: This is the simplest type of flange coupling, consisting of two flanges with flat faces that are bolted together to connect the shafts. It is cost-effective and easy to install but offers limited protection against misalignment.
• 2. Protected Flange Coupling: In this design, the flanges are fitted with a protective cover or casing, which helps prevent dust, dirt, and other contaminants from entering the coupling. It provides better protection to the coupling components, making it suitable for outdoor or harsh environments.
• 3. Flexible Flange Coupling: This design incorporates a flexible element, such as a rubber or elastomeric insert, between the flanges. The flexible element allows for some misalignment between the shafts and helps dampen vibrations, reducing wear on connected equipment. It is commonly used in applications where there may be slight shaft misalignment.
• 4. Rigid Flange Coupling: The rigid flange coupling is a solid coupling without any flexible elements. It provides a rigid connection between the shafts, which is ideal for applications where precise alignment is critical, such as high-speed machinery or precision motion control systems.
• 5. Sleeve Flange Coupling: In this design, a hollow sleeve fits over the ends of the shafts and is bolted to the flanges. The sleeve helps provide additional support and alignment for the shafts.
• 6. Half-Flanged Coupling: Half-flanged couplings consist of two flanges on one shaft and a single flange on the other shaft. This design is suitable for applications with limited space or where one shaft is fixed, and the other requires disconnection frequently.

The choice of flange coupling design depends on factors such as the level of misalignment, speed of rotation, available space, environmental conditions, and the required level of flexibility. Proper selection of the flange coupling type ensures efficient power transmission and extends the life of connected machinery and equipment.

editor by CX 2024-04-12