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Home > products > Pipe Fitting Flanges > 3 Inch Weld Neck Flanges EN1092-01 PN6 Raised Face Flange Carbon Steel A105 For Water Treatments

3 Inch Weld Neck Flanges EN1092-01 PN6 Raised Face Flange Carbon Steel A105 For Water Treatments

Product Details

Place of Origin: Xi'an, China

Brand Name: PeterTrade(PT)

Certification: ISO9001, CE, API,etc

Model Number: EN1092-01 European Standard

Payment & Shipping Terms

Minimum Order Quantity: 10 pieces

Price: negotiable

Packaging Details: Plywood case or pallet, or as per your requirement

Delivery Time: about 15-45 days for delivery

Payment Terms: L/C, D/A, D/P, T/T, Western Union, MoneyGram

Supply Ability: 200 Tons Per Month

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Highlight:

3 Inch Weld Neck Flanges

,

Carbon Steel A105 Raised Face Flange

,

PN6 Weld Neck Flanges

Product Types:
EN1092-01 Weld Neck Flanges WNRF
Pressure Rating:
PN 6
Materials:
Carbon Steel Flanges A105
Dimension:
DN 10- DN 3600
Face Types:
Raised Face, Flat Face, Ring Type Joint
Temperature Range:
-29°C To 593°C
Application:
Oil And Gas, Chemical, Power Generation, Water Treatment, Shipbuilding, Construction
Inspection:
Factory In-house Or Third Party Inspection
Product Types:
EN1092-01 Weld Neck Flanges WNRF
Pressure Rating:
PN 6
Materials:
Carbon Steel Flanges A105
Dimension:
DN 10- DN 3600
Face Types:
Raised Face, Flat Face, Ring Type Joint
Temperature Range:
-29°C To 593°C
Application:
Oil And Gas, Chemical, Power Generation, Water Treatment, Shipbuilding, Construction
Inspection:
Factory In-house Or Third Party Inspection
3 Inch Weld Neck Flanges EN1092-01 PN6 Raised Face Flange Carbon Steel A105 For Water Treatments

3 Inch Weld Neck Flanges EN1092-01 PN6 Weld Neck Raised Face Carbon Steel Weld Neck Flange A105 for Water Treatment and Chemical Industry Applications

 

Introduction of EN1092-01 Weld Neck Flanges:

The EN1092-01 weld neck flange is widely esteemed as a preferred choice among flange types due to its outstanding features and benefits. It excels in providing a robust, seamless connection by means of direct butt welding to pipes, ensuring exceptional reliability in high-pressure environments. The elongated neck enhances strength and durability, complemented by a weld that guarantees a secure, leak-resistant joint.

 

Its tapered neck design plays a crucial role in even stress distribution, effectively mitigating the risk of localized stress concentrations and potential failures. The smooth transition from the flange's neck to the pipe's bore optimizes flow dynamics, thereby reducing turbulence and minimizing pressure drop throughout the system.

 

Furthermore, the extended neck of the weld neck flange simplifies inspection and maintenance tasks, adding to its practicality and ease of access for ongoing operational needs.

 

 

 

Specifications of EN1092-01 Weld Neck Flanges:

3 Inch Weld Neck Flanges EN1092-01 PN6 Raised Face Flange Carbon Steel A105 For Water Treatments 0

EN1092-01 Type 11 Weld Neck Flange PN 6 RF
DN Outside diameter Diameter of bolt circle Diameter of bolt hole Bolting Outside diameter of neck Flange thickness Length Neck diameters Corner radii Wall thickness Raised face Approx weight
D K L Number A C2 H2 H3 N1 R1 S d1 f1 KG
10 75 50 11 4 17.2 12 28 6 26 4 2 35 2 0.4
15 80 55 11 4 21.3 12 30 6 30 4 2 40 2 0.4
20 90 65 11 4 26.9 14 32 6 38 4 2.3 50 2 0.6
25 100 75 11 4 33.7 14 35 6 42 4 2.6 60 2 0.8
32 120 90 14 4 42.4 14 35 6 55 6 2.6 70 2 1.1
40 130 100 14 4 48.3 14 38 7 62 6 2.6 80 3 1.3
50 140 110 14 4 60.3 14 38 8 74 6 2.9 90 3 1.4
65 160 130 14 4 76.1 14 38 9 88 6 2.9 110 3 1.8
80 190 150 18 4 88.9 16 42 10 102 8 3.2 128 3 2.9
100 210 170 18 4 114.3 16 45 10 130 8 3.6 148 3 3.4
125 240 200 18 8 139.7 18 48 10 155 8 4 178 3 4.7
150 265 225 18 8 168.3 18 48 12 184 10 4.5 202 3 5.5
200 320 280 18 8 219.1 20 55 15 236 10 6.3 258 3 8.6
250 375 335 18 12 273 22 60 15 290 12 6.3 312 3 11.7
300 440 395 22 12 323.9 22 62 15 342 12 7.1 365 4 15.3
350 490 445 22 12 355.6 22 62 15 385 12 7.1 415 4 20.3
400 540 495 22 16 406.4 22 65 15 438 12 7.1 465 4 23.1
450 595 550 22 16 457 22 65 15 492 12 7.1 520 4 27
500 645 600 22 20 508 24 68 15 538 12 7.1 570 4 30.8
600 755 705 26 20 610 30 70 16 640 12 7.1 670 5 44
700 860 810 26 24 711 30 76 16 740 12 8 775 5 53.7
800 975 920 30 24 813 30 76 16 842 12 8 880 5 64.4
900 1075 1020 30 24 914 34 78 16 942 12 8 980 5 79.2
1000 1175 1120 30 28 1016 38 82 16 1045 16 8 1080 5 98.6
1200 1405 1340 33 32 1219 42 104 20 1248 16 8.8 1295 5 152
1400 1630 1560 36 36 1422 56 114 20 1452 16 8.8 1510 5 246
1600 1830 1760 39 40 1626 63 119 20 1655 16 10 1710 5 309
1800 2045 1970 42 44 1829 69 133 20 1855 16 11 1920 5 400
2000 2265 2180 42 48 2032 74 146 25 2058 16 12.5 2125 5 516
2200 2475 2390 42 52 2235 81 154 25 2260 18 14 2335 5 645
2400 2685 2600 48 56 2438 87 168 25 2462 18 15 2545 5 786
2600 2905 2810 48 60 2620 91 175 25 2665 18 16 2750 5 1021
2800 3115 3020 48 64 2820 101 188 30 2865 18 17 2960 5 1256
3000 3315 3220 48 68 3020 102 192 30 3068 18 20 3160 5 1404
3200 3525 3430 48 72 3220 106 202 30 3272 20 20 3370 5 1617
3400 3735 3640 48 76 3420 110 214 35 3475 20 22 3580 5 1877
3600 3970 3860 56 80 3620 124 229 35 3678 20 22 3790 5 2366

1.Dimensions are in millimeters(mm).

2.Dimensions can be specified by different purchasers.

 

 

 

Common Materials We Can Provide for Weld Neck Flanges:

Grades of Carbon Steel:

ASTM A105: This is a common grade of carbon steel used for weld neck flanges. It is a forged carbon steel specifically designed for high-temperature service and offers excellent weldability and toughness.

ASTM A350 LF2: LF2 is a low-temperature carbon steel grade commonly used for weld neck flanges in applications where low-temperature toughness is required.

ASTM A694 F52/F60/F65/F70: These grades are high-yield carbon steel materials used for weld neck flanges in applications requiring high strength and impact resistance.

 

Grades of Stainless Steel:

ASTM A182 F304/F304L: These grades of stainless steel are austenitic and commonly used for weld neck flanges. They offer good corrosion resistance, excellent weldability, and are suitable for a wide range of applications.

ASTM A182 F316/F316L: Similar to F304/F304L, these grades are also austenitic stainless steels with improved corrosion resistance, particularly in chloride environments.

ASTM A182 F321: F321 is an austenitic stainless steel grade containing titanium, which provides enhanced resistance to intergranular corrosion. It is often used for weld neck flanges in high-temperature applications.

ASTM A182 F347: F347 is a stabilized stainless steel grade with the addition of niobium, which improves its resistance to intergranular corrosion. It is commonly used for weld neck flanges in applications involving elevated temperatures.

 

 

 

Types of Weld Neck Flanges in the Applications:

There are two main types of weld neck flanges: standard and long neck. Standard weld neck flanges are typically used in conjunction with butt weld fittings. They are designed to align with the inside diameter of the pipe or fitting they are connecting to, ensuring a seamless flow path and a secure, leak-free joint.

 

On the other hand, long weld neck flanges find application primarily with vessel nozzles and equipment connections. These flanges feature an extended neck, which facilitates a gradual transition from the flange to the vessel or equipment. This design is advantageous in scenarios where additional space is needed for insulation, or when there is a requirement for mounting instruments or other attachments.

 

Both types of weld neck flanges are engineered to match the internal diameter of the pipe or fitting they interface with, ensuring compatibility and reliability in various industrial applications. The choice between standard and long weld neck flanges depends on specific operational requirements such as pressure, temperature, and the structural demands of the installation.

 

 

 

Why We Choose Weld Neck Flanges?

Outstanding Characteristics of Weld Neck Flanges in the Applications:

Weld neck flanges are considered among the strongest types of flanges primarily due to their design features and the nature of their connection method.

 

Butt-Welded Connection: Weld neck flanges are welded directly to the pipe. The welding process involves fusing the neck of the flange to the pipe's end, creating a continuous and robust connection. This method ensures that the joint is integral and resistant to leakage under high-pressure conditions.

 

Tapered Hub Design: Weld neck flanges have a long, tapered hub or neck. This design provides several strength advantages:

 

Reduced Stress Concentration: The gradual taper distributes stress more evenly compared to flat or raised face flanges. This minimizes the risk of localized stress concentrations that could lead to fatigue or failure.

Enhanced Structural Integrity: The extended neck acts as a reinforcement, adding structural strength to the flange and the joint. It helps in bearing the load and resisting bending or deformation.

Smooth Transition: The smooth transition from the flange's neck to the pipe's bore improves flow characteristics within the piping system. This reduces turbulence and pressure drop, which can occur in other flange types with abrupt transitions.

 

Suitability for High-Pressure Applications: Due to their robust construction and welded connection, weld neck flanges are well-suited for applications requiring high pressure handling capabilities. They provide a secure and reliable sealing mechanism that withstands significant internal pressures without compromising integrity.

 

Longevity and Reliability: Weld neck flanges are known for their durability and long service life when properly installed and maintained. The welded joint eliminates potential weak points associated with bolted connections, such as gasket failures or bolt loosening over time.

 

Versatility: Weld neck flanges are available in various materials, sizes, and pressure ratings, making them versatile for a wide range of industrial applications where strong, leak-proof connections are essential.