Product Description

steel weld-on forge SS steel bearing rubber coupling with flange carbon steel threaded flange Manufacturer in China
1.Product Introduction
    ZheJiang Shengxiangtong Flange Co., Ltd is located in HangZhou City, ZheJiang Province, with convenient transportation and fast logictics. 
    The main flanges include: stainless steel flanges, flat welding flanges, butt welding flanges, blind flanges, large diameter elbows, high pressure flanges, small diameter flanges, tube plates, manhole flanges and elbows , Tee and other products.
    Shengxiangtong Flange have been sold to Africa, Europe, the Middle East, Southeast Asia, South America, etc, over 30 countries, has a high reputation in the overseas markets. 

2.Product Details
1.Face Type: Available of raised face(RF), full face(FF), Ring joint(RTJ) , Groove, Tongue, or customized.
2.Seal face: smooth face, waterlines, serrated finished
3.CNC fine finished.

Face finish:   
Arithmetical Average Roughness Height(AARH).
The finish is determined by the standard used.
ANSI B16.5 specifies face finishes within a range 125AARH-500AARH(3.2Ra to 12.5Ra).

Other finishes on requst
1.6 Ra max,1.6/3.2 Ra, 3.2/6.3Ra or 6.3/12.5Ra.
The range 3.2/6.3Ra is most common

Technology		Forging
Size Range		DN 10 – DN 2000
		1/2″- 48″
Pressure Ratings	Class	150#, 300#, 600#, 900#, 1500#, 2500#, etc.
	PN	PN2.5, PN6, PN10, PN16, PN25, PN40, PN63, PN100, PN160, etc.
Sealing Type		FF, RF, RJ, FM, M, T, G, etc.
Sealing Finish		Smooth or Spiral Finish (As your request)
Materials	Stainless steel	ASTM A182 Gr. F304/304L/316/316L ASTM A403 WP304/304L/316/316L ASTM A351 Gr. CF3/CF8/CF3M/CF8M
	Duplex steel	UNS31803, SAF2205, UNS32205, UNS31500, UNS32750 , UNS32760, 1.4462, 1.4410, 1.4501 and etc.
Varieties		PL (Plate Flat), WN (Weld Neck), BL (Blind), SO (Slip-ons), SW (Socket Welds), TH (threaded), LJ/SE(Lapped Flange/Stub ends), PJ/SE, LF/SE, etc.
Standard	USA	ASME B16.5, ASME B16.47, MSS SP-44, AWWA C207
	European Union	EN 1092-1
	Britain	BS 4504, BS 10
	Australia	AS 2129, AS/NZ 4087, AS 4331
	New Zealand	AS/NZ 4087
	Russia	GOST 12820, GOST 12815, GOST 12821, GOST 33259
	Germany	DIN 2627 – DIN 2638, DIN 2558, DIN 2665 – DIN 2569, DIN 2573, DIN 2576, DIN 2641, etc.
	Korea	KS B1503
	Japan	JIS B2220
	South Africa	SABS 1123, SANS 1123
	ISO	ISO 7005-1
Package		PE film + Plywood case
Trade Terms		EXW, FOB, CFR, CIF, etc.
Payment Terms		T/T, L/C, CAD, Credit Card
Delivery Time		Within 20 days for massive quantity Within 7 days for stock products
Application		Petrochemical & Gas industry, chemical, machinery, electric power, shipbuilding, papermaking, construction Water works, Shipbuilding industry, Power industry, Valve industry,and general pipes connecting projects etc.

 

3.Application Scenarios

    Petrochemical industy;avation and aerospace industry; pharmaceutical industry;gas exhaust;power plant;ship buliding; water treament,etc.

4.Product Parameter

Product Name	ANSI B165 ASTM A105 A106 Carbon Steel/ Q235 / Stainless Steel FF RF TG RJ Matel Ss400 Forged Welding Neck Flanges
Size	1/2″-110″
Pressure	150#-2500#,PN0.6-PN400,5K-40K,API 2000-15000
Standard	ANSI B16.5,EN1092-1, SABA1123, JISB2220, DIN, GOST,UNI,AS2129, API 6A, etc.
Wall  thickness	SCH5S, SCH10S, SCH10, SCH40S,STD, XS, XXS, SCH20,SCH30,SCH40, SCH60,SCH80, SCH160, XXS and etc.
Material	Stainless steel:  A182F304/304L, A182 F316/316L, A182F321, A182F310S, A182F347H, A182F316Ti,  317/317L, 904L, 1.4301, 1.4307, 1.4401, 1.4571,1.4541, 254Mo and etc. Carbon steel:  A105, A350LF2, S235Jr, S275Jr, St37, St45.8, A42CP,A48CP, E24 , A515 Gr60, A515 Gr 70 etc.
	Duplex stainless steel:  UNS31803, SAF2205, UNS32205, UNS31500, UNS32750 , UNS32760, 1.4462,1.4410,1.4501 and etc. Pipeline steel:  A694 F42, A694F52, A694 F60, A694 F65, A694 F70, A694 F80 etc.
	Nickel alloy:  inconel600, inconel625, inconel690, incoloy800, incoloy 825, incoloy 800H,C22, C-276, Monel400, Alloy20 etc. Cr-Mo alloy:  A182F11, A182F5, A182F22, A182F91, A182F9, 16mo3,15Crmo, etc.

5.Product Advantages
1.Flange Types: Slip-On Flange, Welding Neck Flange, Blind Flange, Socket Welding Flange, Threaded Flange, Lap Joint Flange and Plate etc
2.Pressure Ratings: 150lbs, 300lbs, 600lbs, 900lbs…
3. High quality flanges
4. Compective price
5.Ready stock,
6.available in all sizes,customized; 
7. Fast delivery

6.Product testing and quality control

7.Processing Procedure

8.Product Package
Shipping:

1.  WORLDWIDE SHIPPING. (Except some countries and APO/FPO) 
2. Goods delivered by 20″ , 40″ FCL/LCL by quantity or customer’s request.
3. Customers specifying freight forwarders or negotiable shipping methods!
4. Delivery Time: 10-30days after conformed or according to quantity.

9.Company Introduction
    ZheJiang Shengxiangtong Flange Co.,Ltd has a complete industrial production base, building area of more than 10,000 square meters. The company has modern workshops and professional production line, the company equipment: air hammer, hammer, press, grinding machine, CNC lathe, vertical lathe, CNC gantry drilling, CNC drilling, U automatically presbyopia machines also owns a group of highly professional design and development staff, high quality of the senior management staff and efficient technical personnel.
    Shengxiangtong Flange mainly produces forged carbon steel flanges: flat flanges, sliding flanges, slotted flanges, galvanized flanges, special-shaped flanges such as method LAN. From the incoming inspection of materials and parts to the safety inspection of products, the whole process is checked by professional technical personnel to ensure the quality of products. Products are exported to Russia, South Africa, Japan, South Korea, Australia and other countries, our company has a good reputation and sales in the industry.

10.FAQ
Q: Why would I choose you?
A: We, ZheJiang Shengxiangtong Flange Co.,Ltd., has a complete industrial production base, building area of more than 10,000 square meters. The company has modern workshops and professional production line. Advanced manufacturing equipment, perfect inspection method would assure the quality of our products. Sovereignty for exporting and importing and over 15-year export experience would ensure our cooperation smooth.
Q: May I have free sample before ordering?
A: Yes, our company is very pleased to send you free samples for quality test, but freight cost would be afforded by your side
Q: What about production time?
A: Sample order: 4 – 7 days if out of stock, or deliver at once
      Massive order: 5 – 20 days after getting deposit, depend on exact order
Q: Do your company have the export license?
A: Yes, we have Sovereignty for exporting and importing.
Q: Which trade terms can I choose?
A: Ex-W, FOB, CIF, CNF. As for others, we can negotiate accordingly
Q: How about payment term your company accept?
A: For small testing orders, we accept Western Union and T/T.
     For massive order, we accept T/T and L/C.
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Impact of Elastomer Element Design on Rubber Coupling Performance

The design of the elastomer elements in a rubber coupling plays a critical role in determining its overall performance and capabilities. The elastomer elements are the heart of the coupling, responsible for transmitting torque, absorbing vibrations, and accommodating misalignments. The following aspects of elastomer element design significantly impact the coupling’s performance:

• Elastomer Material: The choice of elastomer material influences the coupling’s flexibility, damping characteristics, and resistance to wear. Different elastomers offer varying levels of resilience, chemical resistance, and temperature tolerance. Common elastomers used include natural rubber, synthetic rubber compounds, and polyurethane.
• Elastomer Hardness (Durometer): The durometer hardness of the elastomer affects its flexibility and ability to absorb vibrations. Softer elastomers have higher damping capabilities but may offer less torsional stiffness. Harder elastomers provide better torque transmission but may have reduced vibration isolation.
• Elastomer Shape and Geometry: The shape and geometry of the elastomer elements influence their flexibility and deformation characteristics. Different designs, such as cylindrical, star-shaped, or spider-shaped elements, affect the coupling’s ability to accommodate misalignments and transmit torque smoothly.
• Elastomer Bonding: The way the elastomer is bonded to the coupling’s hubs or inserts impacts the coupling’s overall durability and reliability. Proper bonding ensures that the elastomer effectively transfers torque and maintains its properties over time.
• Elastomer Properties Over Temperature: Elastomers can exhibit changes in performance with temperature fluctuations. Understanding how the chosen elastomer material behaves at different temperatures is essential for applications with varying operating conditions.

The design of the elastomer elements is a delicate balance between providing flexibility for vibration isolation and misalignment compensation while ensuring adequate torque transmission and overall coupling stiffness. Engineers must carefully select elastomer materials and design features based on the specific requirements of the application to achieve optimal coupling performance.

Industries and Applications of Rubber Couplings

Rubber couplings are widely utilized in various industries and applications where their unique characteristics are beneficial. Some examples include:

• Automotive: Rubber couplings are commonly used in automotive drivetrains to connect the engine to the transmission and other components. They help absorb engine vibrations and shocks, enhancing passenger comfort.
• Pumping Systems: Rubber couplings find applications in pumps and fluid handling systems, where they dampen vibrations and reduce wear on connected equipment.
• Material Handling: Conveyor systems and material handling equipment use rubber couplings to minimize vibrations and shock loads during the movement of materials.
• Industrial Machinery: Rubber couplings are employed in various types of industrial machinery, such as compressors, generators, and gearboxes, to ensure smooth torque transmission and vibration isolation.
• Marine: In marine applications, rubber couplings connect propulsion systems and power transmission components, contributing to the overall reliability and performance of vessels.
• Renewable Energy: Wind turbines and solar tracking systems utilize rubber couplings to absorb dynamic loads and vibrations caused by changing wind conditions.

These examples highlight the versatility and importance of rubber couplings in maintaining efficient and reliable operation across a wide range of industries and applications.

Challenges of Misaligned Rubber Couplings and Their Resolution

Misaligned rubber couplings can lead to several challenges that impact the performance and reliability of machinery. These challenges include:

1. Reduced Efficiency: Misalignment can result in increased friction, causing energy loss and reduced efficiency in power transmission.

2. Increased Wear: Misaligned rubber couplings can cause uneven wear on the coupling’s rubber element and other connected components, leading to premature failure.

3. Vibrations and Noise: Misalignment can cause vibrations and noise, which not only affect the machinery’s operation but also contribute to discomfort for operators.

4. Overloading: Misalignment can lead to uneven loading on the coupling and connected components, potentially causing overloading and damage.

5. Premature Failure: Continuous operation with misaligned couplings can accelerate wear and fatigue, leading to premature failure of the coupling and other components.

To resolve these challenges, proper alignment practices are crucial:

1. Regular Maintenance: Perform routine inspections to identify misalignment and other issues early, allowing for timely adjustments.

2. Precise Installation: Ensure accurate alignment during the installation process to prevent initial misalignment.

3. Laser Alignment: Use laser alignment tools for accurate and reliable alignment between shafts.

4. Corrective Measures: If misalignment is detected, take corrective actions promptly to restore proper alignment.

5. Balancing Loads: Distribute loads evenly across the coupling and connected components to prevent overloading.

By addressing misalignment challenges proactively and adopting appropriate maintenance practices, the longevity and performance of rubber couplings can be significantly improved, minimizing downtime and maintenance costs in industrial applications.

editor by CX 2024-04-03