China OEM 2 1/2′ ′ 1500psi High Pressure Stainless Steel Grooved Pipe Coupling

Product Description

Product Description

Stainless Steel Grooved Coupling is a simple, quick and reliable solution for cut grooved pipe joint which allows for
expansion, contraction and deflection and it’s widely applied in the water treatment industry, filter system, cooling water
system, fire extinguishing system, Sprinkle Systems and etc

Material Specification Housing

Type304 Stainless steelto ASTM A351 CFB or A743Gr.CF8 Type316 to ASTM A351 CF8M Type316L to ASTM A351 CF3M TypeCE8MN to ASTM A890 2A Duplex 2205(CD3MN)to ASTM A8904A SuperDuplex 2507(CE3MN)tO ASTM A890 5A

Rubber Gaskets

The gasket seals is C-shaped,made of standard gasketEPDM(ethylene propylene diene monomer) for cold water/hot water/rare acid oil-free ai and multiple chemicalproduct (-34°C~+150°C) .It is not suitable for mediumlike petroleum

Bolts & Nuts

Type 304 stainless steel track bolts and nuts to GB12 orASTM F-593 Type 316 stainless steeltrack bolts and nuts to GB12 orASTM-F593

List Of Size

Model S80 Stainless Steel Flexible Coupling

Nomina
Size

Pipe O.D

Working
Pressure

Separatio
N

Coupling Dimensions

Coupling Bolts

X

Y

Z

Qty

Size

mm/inch

mm/inch

(psi/bar)

(mm/inch)

mm/inch

mm/inch

mm/inch

Pcs

mm

20
3/4

26.9
1.050

1500
103

0-1.6
0-0.06

48
1.889

88
3.465

44
1.732

2

M10x45

25
1

32
1.260

1500
103

0-1.6
0-0.06

56
2.205

96
3.779

45
1.772

2

M10x45

25
1

33.7
1.315

1500
103

0-1.6
0-0.06

56
2.205

96
3.779

45
1.772

2

M10x45

32
11/4

42.4
1.660

1500
103

0-1.6
0-0.06

65
2.559

103
4.055

45
1.772

2

M10x50

40
11/2

48.3
1.900

1500
103

0-1.6
0-0.06

70
2.755

108
4.251

45
1.772

2

M10x50

50
2

60.3
2.375

1500
103

0-1.6
0-0.06

83
3.267

127
5.000

46
1.811

2

M12x60

65
21/2

73
2.875

1500
103

0-1.6
0-0.06

100
3.937

142
5.590

47
1.850

2

M12x70

65
21/2

76.1
3.000

1500
103

0-1.6
0-0.06

100
3.937

142
5.590

47
1.850

2

M12x70

80
3

88.9
3.500

1500
103

0-1.6
0-0.06

117
4.606

160
6.299

47
1.850

2

M12x70

100
4

114.3
4.500

1500
103

0-3.2
0-0.13

147
5.787

210
8.267

52
2.047

2

M16x90

125
5

141.3
5.563

1200
83

0-3.2
0-0.13

180
7.087

252
9.921

52
2.047

2

M16x90

150
6

1683
6.625

1200
83

0-3.2
0-0.13

210
8.267

280
11.571

52
2.047

2

M16x90

200
8

219.1
8.625

1200
83

0-3.2
0-0.13

276
10.866

360
14.173

62
2.441

2

M22x125

250
10

273
10.750

1200
83

0-3.2
0-0.13

342
13.465

420
16.535

67
2.637

2

M24x165

300
12

323.9
12.750

1200
83

0-3.2
0-0.13

394
15.512

480
18.897

67
2.637

2

M24

Project Case

Company Profile

HangZhou CHINAMFG Pipeline Co.,Ltd is the professional Chinese manufacturer of pipe fittings for pipe joining and leaking pipe repair . We have 2 main product categories, 1 is Repair Clamps Series and the other is Pipe Coupling Series. Our products are suit for varied kinds of pipeline with the pressure rating up to 1450psi and the medium temperature up to 250ºC Our Repair Clamps Series including Stainless Steel Repair Clamps, Ductile Iron Repair Clamps, UPVC Repair Clamps, HDPE Repair Clamps, Split Sleeve Repair Clamps, Type B Sleeves and etc. Our Pipe Coupling Series including Universal Coupling, Flange Adaptor, Dismantling Joint, Gibault Joint, Quick Flange Adaptor, SS Metal Grip Coupling, SS Flex Coupling, SS Plastic Grip Coupling, SS Grooved Coupling, Ductile Iron Grooved Coupling and etc. Our factory covers an area of 12,000 square meters, total existing staff more than 100. We have the team of engineers which have the rich experience in the development of products for pipe joining and leaking pipe repair . We own more than 110 sets of production equipment including 400 tons punching machine, 350 tons stretching machine, laser cutting machine and etc The quality of our poducts are ensured with our advanced testing equipment including salt spray tester, air tightness tester, pulse vibration platform, tensile testing machine and etc. We have the ability to design and develop new products according to our customer’spipe diameter, pressure, medium, temperature . Our company has obtained ISO9001, CE,WRAS,ACS, IAPMO, GHOST,SGS,CCS Certificates . Our products are exported to more than 50 countries including USA, UK, Spain, Australia, Russia, Middle East countries and etc. We will supply our Repair Clamps and Pipe Couplings to our customers all around the world with best quality and competitive price .

Packaging & Shipping

FAQ

Q: Why choose Great Wall?
A: Because we can provide competitive price and best quality, we have strict quality control and the most import is we have a large production scope.
Q: What can we expect from CHINAMFG ?
A: professinal negotiation, reasonable price, and good after sale service
Q: Can you do customized design and size?
A: Yes, OEM IS available.
Q: Can I have some samples?
A: Of course, samples are free (1-3 pcs) or 1-2kg
Q: When can we get samples and goods?
A: If we havestock, the samples will be sent soon , make new will take about 5 days. Goods will be shipped within 20 days after receiving the deposit.
Q: How can you ensure the quality of products?
A: We have a very strict quality control system, in our factory we have 10quality control inspectors and each of them have many years of working experiences.

 

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stainless steel coupling

How Does the Grade of Stainless Steel Used in Couplings Impact Their Performance?

The grade of stainless steel used in couplings has a significant impact on their performance and suitability for specific applications. Stainless steel is an alloy that contains varying amounts of elements like chromium, nickel, and molybdenum, which give it different properties. The most common grades of stainless steel used in couplings are:

  1. Austenitic Stainless Steel (e.g., 304, 316): Austenitic stainless steel is the most widely used grade in couplings due to its excellent corrosion resistance, high ductility, and non-magnetic properties. Grade 304 is commonly used in general-purpose applications, while grade 316 offers higher corrosion resistance, making it suitable for more aggressive environments like marine or chemical industries.
  2. Ferritic Stainless Steel (e.g., 430, 446): Ferritic stainless steel has lower corrosion resistance compared to austenitic grades but offers better resistance to stress corrosion cracking. It is used in certain coupling applications where moderate corrosion resistance is sufficient.
  3. Martensitic Stainless Steel (e.g., 410, 420): Martensitic stainless steel is known for its hardness and strength. It is used in couplings that require higher mechanical properties, but it may have reduced corrosion resistance compared to austenitic grades.
  4. Duplex Stainless Steel (e.g., 2205, 2507): Duplex stainless steel combines the properties of austenitic and ferritic grades, offering high strength and better resistance to stress corrosion cracking and pitting. It finds applications in critical coupling systems where both strength and corrosion resistance are essential.

The choice of stainless steel grade depends on the specific requirements of the coupling application. Factors such as environmental conditions, exposure to corrosive substances, temperature, and mechanical stresses must be considered when selecting the appropriate grade. For example, couplings used in marine environments may require a high-grade austenitic stainless steel like 316 to withstand saltwater corrosion, while couplings in food processing may use grade 304 for its hygienic properties and general corrosion resistance.

In summary, the grade of stainless steel used in couplings directly influences their performance in terms of corrosion resistance, strength, ductility, and suitability for various applications. Proper selection of the stainless steel grade ensures that the couplings deliver reliable and long-lasting performance in their intended operating conditions.

stainless steel coupling

Causes of Failure in Stainless Steel Couplings and Prevention

Stainless steel couplings are designed for durability and reliability, but like any mechanical component, they can experience failure under certain conditions. Understanding the potential causes of failure and taking preventive measures can help ensure the longevity and performance of stainless steel couplings. Some common causes of failure include:

1. Overloading: Exceeding the maximum torque or load capacity of the coupling can lead to deformation or breakage. To prevent overloading, it’s essential to choose a coupling with the appropriate torque and load ratings for the specific application.

2. Misalignment: Misalignment between shafts can create additional stresses on the coupling, leading to premature wear and failure. Regularly inspect and adjust shaft alignment to ensure it stays within the coupling’s allowable limits.

3. Corrosion: While stainless steel is corrosion-resistant, it is not immune to corrosion, especially in harsh environments with exposure to corrosive substances. Regular cleaning and maintenance can help prevent corrosion-related failure.

4. Fatigue: Repeated cycles of loading and unloading can cause fatigue failure in the coupling. Ensure that the coupling’s rated fatigue life matches the application’s requirements and replace worn-out couplings promptly.

5. Installation Errors: Improper installation, such as insufficient tightening of set screws or improper keyway fitting, can lead to coupling slippage and failure. Follow the manufacturer’s guidelines for correct installation procedures.

6. Contamination: Foreign particles or debris can get trapped between the coupling’s mating surfaces, leading to uneven loading and premature wear. Keep the coupling and surrounding area clean to avoid contamination-related issues.

7. Temperature Extremes: Extreme temperature variations can affect the material properties of the coupling and lead to failure. Choose couplings rated for the temperature range of the application.

8. Vibration and Resonance: Excessive vibration or resonance can cause stress concentrations in the coupling, leading to fatigue failure. Dampen vibrations and resonance using appropriate mounting and isolation techniques.

9. Material Defects: Occasionally, manufacturing defects in the stainless steel coupling can cause premature failure. Source couplings from reputable manufacturers with a track record of quality and reliability.

Preventive Measures: To prevent failure and ensure optimal performance, consider the following preventive measures:

  • Choose the right coupling type and size for the application’s torque and load requirements.
  • Regularly inspect and maintain the coupling, checking for signs of wear, misalignment, or contamination.
  • Ensure proper installation following the manufacturer’s guidelines.
  • Monitor operating conditions and address any unusual vibrations or temperature variations promptly.
  • Perform regular shaft alignment checks to avoid excessive misalignment.
  • Use protective measures such as seals or covers to prevent contamination and corrosion.
  • Monitor coupling fatigue life and replace worn-out couplings before they reach their fatigue limit.

By understanding the potential causes of failure and implementing appropriate preventive measures, users can increase the reliability and longevity of stainless steel couplings in their applications.

stainless steel coupling

Proper Installation of Stainless Steel Couplings for Optimal Performance

Installing a stainless steel coupling correctly is essential for ensuring its optimal performance and longevity. Follow these steps for proper installation:

  1. Inspect the Coupling: Before installation, carefully inspect the coupling and its components for any damage or defects. Ensure that it matches the required specifications for the application.
  2. Prepare the Shafts: Clean and degrease the shafts to ensure a clean surface for coupling attachment. Remove any debris or contaminants that could affect the coupling’s performance.
  3. Align the Shafts: Make sure the shafts are properly aligned to minimize misalignment, which can cause stress on the coupling and lead to premature failure. Use alignment tools to achieve precise alignment.
  4. Apply Lubrication: Apply a thin layer of appropriate lubricant to the mating surfaces of the coupling halves and the shafts. This will reduce friction during installation and future operation.
  5. Assemble the Coupling: Carefully position the coupling halves onto the shafts, ensuring that they are fully engaged and aligned. Follow the manufacturer’s instructions for assembly, including torque specifications for clamping screws.
  6. Tighten Clamping Screws: Gradually tighten the clamping screws in a criss-cross pattern to ensure even pressure distribution. Use a torque wrench to achieve the recommended torque value specified by the manufacturer.
  7. Check Runout: After installation, check for any runout or eccentricity by rotating the coupling and observing any visible movement or vibration. Address any runout issues promptly.
  8. Perform a Trial Run: Before putting the coupling into full operation, perform a trial run to ensure smooth operation and check for any signs of abnormal behavior or noise.
  9. Regular Inspections: Implement a maintenance schedule to regularly inspect the coupling for wear, corrosion, or misalignment. Address any issues promptly to prevent further damage.

Properly installing a stainless steel coupling according to these guidelines will help maximize its performance, reliability, and service life in the mechanical system.

China OEM 2 1/2′ ′ 1500psi High Pressure Stainless Steel Grooved Pipe Coupling  China OEM 2 1/2′ ′ 1500psi High Pressure Stainless Steel Grooved Pipe Coupling
editor by CX 2024-01-09

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