Product Description

 

Product Description

1nuo /YINUO Pipe Fittings Standard Grooved Pipe Fittings grooved coupling

production process

A rough castings of grooved fittings will be processed and produced by electric-furnice smelting,on-line monitoring and control and automatic molding methods.

Product Parameters

1. High Pressure Coupling Specification:

Size	Pipe O.D	Working Pressure	Bolt Size
	mm/in	PSI/MPa	No.-Size mm
25 1	33.7 1.327	750 5.17	2-M10*45
32 1¼	42.4 1.669	750 5.17	2-M10*45
40 1 1/2	48.3 1.900	750 5.17	2-M10*45
50 2	60.3 2.375	750 5.17	2-M10*55
65 2 1/2	73 2.875	750 5.17	2-M10*55
65 3OD	76.1 3.000	300 2.07	2-M10*55
80 3	88.9 3.500	750 5.17	2-M10*60
100 4	114.3 4.500	750 5.17	2-M10*65
125 5.5OD	139.7 5.500	750 5.17	2-M10*75
150 6 OD	165.1 6.500	750 5.17	2-M10*75
150 6	168.3 6.625	750 5.17	2-M10*75
200 8	219.1 8.625	750 5.17	2-M10*100
250 10	273.0 10.748	750 5.17	2-M10*130
300 12	323.9 12.752	750 5.17	2-M10*130

Product Details

 

Material	Ductile Iron-ASTM A536
Thread Standard	BSPT/ BSPP/ NPT
Bolt and Nut	Cold Heading Steel- Gold color
Pressure	750 CHINAMFG – 5.17Mpa
Finish	Epoxy/ Painted / Galvanized
Color	Ral 3000 Red / Orange/ Blue/ White
Brand	1NUO
Package	Cartons with Pallet / Wooden Case
Delivery Time	20-40 days as per ever order
Capacity	Four Automatic Vertical Production Lines
Application	1. fire fighting& fire sprinkler system for commercial and civil fire protection construction, such as water supplying, gas supplying, air-conditioning etc.
	2. Industrial pipeline system in shipping, mine, oil field, cement, mine piping , chemical plant etc.
	3. Ordinary piping delivery in sewage treatment, Subway station, airport etc.

Gasket:

Gasket	Material	Temperature Range	Recommendations
E	EPDM	-34ºC~ +110ºC	Recommended for hot water, dilute acid, oil-free gas and other chemicals(except for hydrocarbon ) within the specified temperature range. Not recommended for petroleum and hydrocarbon.
D	NBR	-29ºC~ +82ºC	Recommended for petroleum products, gas with oil vapors, mineral oil and vegetable oil. Not recommended for high temperature materials.
S	Silicon Rubber	-40ºC~ +177ºC	Recommended for high temperature and dry air, and some high temperature chemicals.

Certifications

FM Approved&UL Listed&CE Certificate

Packaging & Shipping

To better ensure the safety of your goods, professional, environmentally friendly, convenient and efficient packaging services will be provided.
 

Company Profile

HangZhou CHINAMFG has strong technical strength and possesses the world’s first-class equipment and technology, as well as perfect testing methods. All rough castings of grooved fittings will be processed and produced by electric-furnace smelting, on-line monitoring and control and automatic molding methods. Now our facilities include 11 medium frequency furnace, 4 advanced vertical parting molding lines and 3 painting lines. Every customer’s requirements can be satisfied by customized services.

Yinuo’s ductile iron grooved fittings have successively passed the China national type test, ISO 9001 and FM&UL approvals etc. Our products are underwritten by China Ping An Insurance(Group) Co.,Ltd. The grooved pipe fittings are widely used in fire fighting, air-conditioning, water supply, sewage, cement, low-pressure steaming, mine piping and ordinary piping delivery.

ø Corporate Vision: Where there is pipes, there is YINUO.
ø Corporate Mission: Connecting pipeline around the world, benefiting homes in every building.
ø Competitive Strategy: To supply market with perfect products, to win customers with excellent service.
ø Core Value: Pragmatic honesty, quality first, continuous innovation and CHINAMFG cooperation.
ø Quality Value: We survive with quality and develop by technology.
 

Range of products

Rigid coupling, Flexible coupling, 90° Elbow, 45° Elbow, 22.5° Elbow, 11.25° Elbow, Tee, Reducing Tee(Grooved/Threaded), Cross, Reducing Cross(Grooved/Threaded), Mechnical Tee(Grooved/Threaded), Mechnical Cross(Grooved/Threaded), U-bolted Mechnical Tee, Reducer(Grooved/Threaded), Grooved Eccentric Reducer, Grooved Split Flange, Grooved Adaptor Flange, Cap.
Application: As 1 of the most popular fittings in fire fighting systems, the grooved pipe fittings are widely used in fire fighting, air-conditioning, water supply, sewage, cement, oil&gas pipeline, mine piping and ordinary piping delivery. CHINAMFG is spreading all over the world and winning the appreciations from users at home and abroad.

FAQ

Q1. Are you manufactrer?
A: Yes, we are manufacturing&trading combo.

Q2. What are your terms of delivery?
A: EXW, FOB, CFR, CIF.

Q3. What is your delivery time?
A: The time of delivery is around 15-20 days, depending on order quantity.

Q4: Can you provide us with some samples for testing?
A: Of course, we can offer you samples. The sample is free, you only need to bear the freight.

Q5. What is your payment terms?
A: We accept 30% T/T in advance, 70% in the period of shipment or L/C at sight.

Q6. Could you specially design and produce for clients?
A: Sure, we have all kinds of professional engineers.We can design and produce special products according to customers’ request. Such as: special size, special control, OEM, etc.

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Can flexible couplings be used in hydraulic and pneumatic systems?

Yes, flexible couplings can be used in both hydraulic and pneumatic systems to connect various components and transmit power or motion. However, the selection of flexible couplings for these systems depends on specific application requirements and operating conditions.

Hydraulic Systems:

• Compensating Misalignment: In hydraulic systems, flexible couplings are used to compensate for misalignment between the driving and driven components, such as pumps, motors, and actuators. Misalignment can occur due to variations in the mounting or movement of components. The flexibility of the coupling allows it to accommodate misalignment while transmitting torque efficiently.
• Vibration Damping: Hydraulic systems can generate vibrations during operation, which can affect the performance and lifespan of connected components. Flexible couplings with vibration-damping properties help reduce the transmission of vibrations, providing smoother operation and minimizing wear on components.
• Reducing Shock Loads: Flexible couplings absorb and dampen shock loads that may occur in hydraulic systems during rapid starts, stops, or pressure fluctuations. By absorbing these shock loads, the coupling protects connected components from potential damage.
• Corrosion Resistance: Hydraulic systems may operate in environments with exposure to hydraulic fluids, which can be corrosive. Flexible couplings made of materials resistant to corrosion, such as stainless steel or specific polymers, are suitable for such applications.
• High Torque Transmission: Hydraulic systems often require high torque transmission between the power source and the driven components. Flexible couplings can handle high torque levels while accommodating angular and axial misalignments.

Pneumatic Systems:

• Compensation for Misalignment: In pneumatic systems, flexible couplings provide compensation for misalignment between components, such as pneumatic cylinders, valves, and rotary actuators. The ability to accommodate misalignment ensures smooth operation and reduces the risk of mechanical stress on the system.
• Minimal Lubrication: Some flexible couplings designed for pneumatic systems require little to no lubrication, making them suitable for applications where oil or grease contamination is undesirable.
• Low Inertia: Pneumatic systems often require components with low inertia to achieve rapid response times. Flexible couplings with low mass and low inertia help maintain the system’s responsiveness and efficiency.
• High Torque Transmission: Pneumatic systems can demand high torque transmission between components, such as in pneumatic rotary actuators. Flexible couplings can transmit torque effectively while compensating for potential misalignments.
• Corrosion Resistance: Pneumatic systems operating in harsh environments may be exposed to moisture or chemicals. Flexible couplings made of corrosion-resistant materials are ideal for such conditions.

Overall, flexible couplings are versatile components that can be used in a wide range of hydraulic and pneumatic applications. When selecting a flexible coupling for a specific system, it’s essential to consider factors such as misalignment compensation, vibration damping, shock absorption, corrosion resistance, torque transmission capability, and compatibility with the system’s operating conditions.

How does a flexible coupling accommodate changes in shaft alignment due to thermal expansion?

Flexible couplings are designed to accommodate changes in shaft alignment that occur due to thermal expansion in rotating machinery. When equipment operates at elevated temperatures, the materials used in the shafts and other components expand, causing shifts in the relative positions of the connected shafts. This thermal expansion can lead to misalignment, which, if not addressed, may result in additional stress on the equipment and premature wear.

Flexible couplings employ specific design features that allow them to handle thermal-induced misalignment effectively:

• Flexibility: The primary feature of a flexible coupling is its ability to flex and deform to some extent. This flexibility allows the coupling to absorb small amounts of angular, parallel, and axial misalignment that may result from thermal expansion. As the shafts expand or contract, the flexible coupling compensates for the misalignment, helping to maintain proper alignment between the two shafts.
• Radial Clearance: Some flexible couplings, such as elastomeric couplings, have radial clearance between the coupling’s mating parts. This radial clearance provides additional room for the shafts to move laterally during thermal expansion without creating excessive forces on the coupling or connected equipment.
• Sliding Elements: Certain flexible couplings feature sliding elements that can move relative to each other. This capability allows the coupling to accommodate axial displacement resulting from thermal expansion or other factors.
• Flexible Element Materials: The materials used in the flexible elements of the coupling are chosen for their ability to handle the temperature range experienced in the application. Elastomeric materials, for example, can be selected to withstand high temperatures while still maintaining their flexibility.

It is essential to understand that while flexible couplings can compensate for some degree of thermal-induced misalignment, there are limits to their capabilities. If the thermal expansion exceeds the coupling’s compensating range, additional measures, such as incorporating expansion joints or using specialized couplings designed for greater misalignment compensation, may be necessary.

When selecting a flexible coupling for an application with potential thermal expansion, it is crucial to consider the expected operating temperature range and the level of misalignment that may occur due to thermal effects. Working with coupling manufacturers and consulting coupling catalogs can help in choosing the most suitable coupling type and size for the specific thermal conditions of the machinery.

How do flexible couplings compare to other types of couplings in terms of performance?

Flexible couplings offer distinct advantages and disadvantages compared to other types of couplings, making them suitable for specific applications. Here is a comparison of flexible couplings with other commonly used coupling types in terms of performance:

• Rigid Couplings:

Rigid couplings are simple in design and provide a solid connection between two shafts, allowing for precise torque transmission. They do not offer any flexibility and are unable to compensate for misalignment. As a result, rigid couplings require accurate shaft alignment during installation, and any misalignment can lead to premature wear and increased stress on connected equipment. Rigid couplings are best suited for applications where shaft alignment is precise, and misalignment is minimal, such as in well-aligned systems with short shaft spans.

• Flexible Couplings:

Flexible couplings, as discussed previously, excel at compensating for misalignment between shafts. They offer angular, parallel, and axial misalignment compensation, reducing stress on connected components and ensuring smooth power transmission. Flexible couplings are versatile and can handle various applications, from light-duty to heavy-duty, where misalignment, vibration damping, or shock absorption is a concern. They provide a cost-effective solution for many industrial, automotive, and machinery applications.

• Oldham Couplings:

Oldham couplings are effective at compensating for angular misalignment while maintaining constant velocity transmission. They offer low backlash and electrical isolation between shafts, making them suitable for precision motion control and applications where electrical interference must be minimized. However, Oldham couplings have limited capacity to handle parallel or axial misalignment, and they may not be suitable for applications with high torque requirements.

• Gear Couplings:

Gear couplings are robust and can handle high torque levels, making them suitable for heavy-duty applications such as mining and steel mills. They offer good misalignment compensation and have a compact design. However, gear couplings are relatively more expensive and complex than some other coupling types, and they may generate more noise during operation.

• Disc Couplings:

Disc couplings provide excellent misalignment compensation, including angular, parallel, and axial misalignment. They have high torsional stiffness, making them ideal for applications where accurate torque transmission is critical. Disc couplings offer low inertia and are suitable for high-speed applications. However, they may be more sensitive to shaft misalignment during installation, requiring precise alignment for optimal performance.

• Conclusion:

The choice of coupling type depends on the specific requirements of the application. Flexible couplings excel in compensating for misalignment and vibration damping, making them versatile and cost-effective solutions for many applications. However, in situations where high torque, precision, or specific electrical isolation is necessary, other coupling types such as gear couplings, disc couplings, or Oldham couplings may be more suitable. Proper selection, installation, and maintenance of the coupling are essential to ensure optimal performance and reliability in any mechanical system.

editor by CX 2024-03-14