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  1. الصفحة الرئيسية
  2. المنتجات
  3. شفة من الفولاذ المقاوم للصدأ
  4. فلنجة ذات عنق ملحوم
Weld neck flange

فلنجة ذات عنق ملحوم

الاسم:  Stainless steel Weld neck flange

المقاسات: 1/2" (15 NB) to 48" (1200NB) DN10~DN5000

أنواع المواد: Carbon, Alloy and Stainless Steel .

الفصل:Class 150, 300, 400, 600, 900, 1500, 2500(# or LB). PN 2.5 to PN 250.

Flange face type: الوجه البارز (RF)، الوصلة الحلقية (RTJ)، الوجه المسطح (FF)، الوصلة الذكورية-الأنثوية الكبيرة (LMF)، الوجه ذو الوصلة المتداخلة (LJF)، الوصلة الذكورية-الأنثوية الصغيرة (SMF)، اللسان الصغير، اللسان والفتحة الكبيرة، الفتحة

المعدات:آلة الضغط، آلة الثني، آلة الدفع، آلة الشطف الكهربائية، آلة السفع الرملي، إلخ

التطبيق:Bitumen upgraders.Heavy oil refineries.Nuclear power (mostly seamless).Petrochemicals and acids.

رقم الموديل: KXSSWNF

رسمي: ونتشو، تشجيانغ

ستاندراد:ANSI/ASME B16.5, B16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, GOST Flange, ASME/ANSI B16.5/16.36/16.47A/16.47B, MSS S44, ISO70051, JISB2220, BS1560-3.1, API7S-15, API7S-43, API605, EN1092

العلامة التجارية: كايشين

التقنيات: مُصنَّعة بالطرق، ومعالجة حرارياً، ومشكَّلة آلياً

الحزمة: حزمة التصدير القياسية

السعر:  2-500usd/pc

التوصيل: كمية الاتفاق

القدرة على الإنتاج: 20000pcs/month

إرسال استفسار الدردشة المباشرة
  • تفاصيل المنتج

A weld neck flange is a type of flange used for connecting pipelines in a variety of industries, including the oil and gas, chemical, and petrochemical industries. As the name suggests, the weld neck flange is welded to the end of a pipe, providing a secure and leak-proof connection.

Stainless steel weld neck flanges are widely used due to their excellent corrosion resistance and durability, making them ideal for use in harsh environments such as offshore platforms, chemical processing plants, and gas refineries. These flanges are made of high-grade stainless steel such as 304, 316, or 321, and are available in a range of sizes, pressure ratings, and configurations to suit different applications.

One of the main advantages of weld neck flanges is that they provide a strong and stable connection that can withstand high pressures, temperatures, and vibrations. The tapered neck design of the flange helps to reduce stress concentration at the base of the welding joint, making it less susceptible to cracking or failure. Additionally, the raised face of the flange provides a smooth and even sealing surface, reducing the risk of leaks or contamination.

Overall, stainless steel weld neck flanges are a reliable and long-lasting solution for joining pipelines in high-pressure and high-temperature applications. Their resistance to corrosion, chemical attack, and mechanical stress makes them an excellent choice for use in harsh environments, where safety and reliability are crucial.

جدول المحتويات：

 

  1. Weld Neck Flanges Specifications
  2. التطبيقاتof فلنجة مغلقة
  3. Material & Grades of Blind Flanges (BLRF)
  4. Weld Neck Flange Dimensions (Cl. 150/300/900/1500/2500)
  5. ANSI B16.5 Weld Neck Flange Schedule Chart, Weld Neck Flange Thickness Chart
  6. Weld Neck Flange Weight Chart
  7. DIMENSIONAL TOLERANCE WELDING NECK FLANGE
  8. Standards Referred for WN flange
  9. Weld Neck Flanges Price List

 

 

Weld Neck Flanges Specifications

Weld Neck Flanges StandardsANSI/ASME B16.5، B16.47 السلسلتان A و B، B16.48، BS4504، BS 10، EN-1092، DIN، فلنجات ANSI، فلنجات ASME، فلنجات BS، فلنجات DIN، فلنجات EN، فلنجات GOST، ASME/ANSI B16.5/16.36/16.47A/16.47B، MSS S44، ISO70051، JISB2220، BS1560-3.1، API7S-15، API7S-43، API605، EN1092
ASME B16.5 Weld Neck Flanges Size Chart1/2″ (15 NB) to 48″ (1200NB) DN10~DN5000
Weld Neck Flanges Pressure Rating ANSIClass 150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS Weld Neck Flanges
الطلاءOil Black Paint, Anti-rust Paint, Zinc Plated, Yellow Transparent, Cold and Hot Dip Galvanized Weld Neck Flanges
EN6Bar 10Bar 16Bar 25Bar 40Bar Weld Neck Flanges
Most common types of Weld Neck Flangesمطروقة / ملولبة / مثبتة بمسامير / صفيحة
نوع التوصيل / نوع سطح الحافةالوجه البارز (RF)، الوصلة الحلقية (RTJ)، الوجه المسطح (FF)، الوصلة الذكورية-الأنثوية الكبيرة (LMF)، الوجه ذو الوصلة المتداخلة (LJF)، الوصلة الذكورية-الأنثوية الصغيرة (SMF)، اللسان الصغير، اللسان والفتحة الكبيرة، الفتحة
تقنية الإنتاج· مصنوعة بالطرق، ومعالجة حرارياً، ومشكّلة آلياً
اختبارمطياف القراءة المباشرة، آلة الاختبار الهيدروستاتيكي، كاشف الأشعة السينية، كاشف العيوب بالموجات فوق الصوتية UI، كاشف الجسيمات المغناطيسية
المعداتآلة الضغط، آلة الثني، آلة الدفع، آلة الشطف الكهربائية، آلة السفع الرملي، إلخ
Weld Neck Flanges Uses & application· محطات تحسين جودة البيتومين.

· مصافي تكرير النفط الثقيل.

· الطاقة النووية (بشكل عام دون عوائق).

· البتروكيماويات والأحماض.

Application of Blind Flange

Weld neck flange connections are often found in industrial applications where they are used to join pipes together in order to create larger structures such as boilers or tanks. They can also be used for connecting pumps, valves, and other pieces of equipment together. Additionally, they can be found in commercial applications such as plumbing systems, where they may be used for joining water lines together or creating drainage systems.

Weld Neck Flange Dimensions (Cl. 150/300/900/1500/2500)

WELDING NECK FLANGE DIMENSIONS IN INCHES

رسم أبعاد الفلنجات ذات الوصلة المتداخلة

رسم أبعاد الفلنجات ذات الوصلة المتداخلة

WN CLASS 150 (IN INCH)

Weld neck flange dimensions class 150 (ASME B16.5) in inches

Flange NPSInside

القطر

في الخارج

القطر

Bolt Circle

(BC)

Raised Face

(R)

Raised Face

(RF)

HH1Raised Face

Thickness (T)

T1Flat Face

Thickness (T2)

Bolt Hole

(B)

No. of

Bolt Holes

1/2″0.62″3.50″2.38″1.38″.063″1.19″0.84″1.88″.38″1.82″.62″4
3/4″0.82″3.88″2.75″1.69″.063″1.50″1.05″2.06″.44″2.00″.62″4
1″1.05″4.25″3.12″2.00″.063″1.94″1.32″2.19″.50″2.13″.62″4
1-1/4″1.38″4.62″3.50″2.50″.063″2.31″1.66″2.25″.56″2.19″.62″4
1-1/2″1.61″5.00″3.88″2.88″.063″2.56″1.90″2.44″.62″2.38″.62″4
2″2.07″6.00″4.75″3.62″.063″3.06″2.38″2.50″.69″2.44″.75″4
2-1/2″2.47″7.00″5.50″4.12″.063″3.56″2.88″2.75″.82″2.69″.75″4
3″3.07″7.50″6.00″5.00″.063″4.25″3.50″2.75″.88″2.69″.75″4
3-1/2″3.55″8.50″7.00″5.50″.063″4.81″4.00″2.81″.88″2.75″.75″8
4″4.03″9.00″7.50″6.19″.063″5.31″4.50″3.00″.88″2.94″.75″8
5″5.05″10.00″8.50″7.31″.063″6.44″5.56″3.50″.88″3.44″.88″8
6″6.07″11.00″9.50″8.50″.063″7.56″6.63″3.50″.94″3.44″.88″8
8″7.98″13.50″11.75″10.62″.063″9.69″8.63″4.00″1.06″3.94″.88″8
10″10.02″16.00″14.25″12.75″.063″12.00″10.75″4.00″1.13″3.94″1.00″12
12″12.00″19.00″17.00″15.00″.063″14.38″12.75″4.50″1.19″4.44″1.00″12
14″13.25″21.00″18.75″16.25″.063″15.75″14.00″5.00″1.32″4.94″1.12″12
16″15.25″23.50″21.25″18.50″.063″18.00″16.00″5.00″1.38″4.94″1.12″16
18″17.25″25.00″22.75″21.00″.063″19.88″18.00″5.50″1.50″5.44″1.25″16
20″19.25″27.50″25.00″23.00″.063″22.00″20.00″5.69″1.63″5.63″1.25″20
22″21.25″29.50″27.25″25.25″.063″24.25″22.00″5.88″1.75″5.82″1.38″20
24″23.25″32.00″29.50″27.25″.063″26.12″24.00″6.00″1.82″5.94″1.38″20

WN CLASS 300 (IN INCH)

Weld neck flange dimensions class 300 (ASME B16.5) in inches

Flange NPSInside

القطر

في الخارج

القطر

Bolt Circle

(BC)

Raised Face

(R)

Raised Face

(RF)

HH1Raised Face

Thickness (T)

T1Flat Face

Thickness (T2)

Bolt Hole

(B)

No. of

Bolt Holes

1/2″0.62″3.75″2.62″1.38″.063″1.50″0.84″2.06″.50″2.00″0.62″4
3/4″0.82″4.62″3.25″1.69″.063″1.88″1.05″2.25″.56″2.19″0.75″4
1″1.05″4.88″3.50″2.00″.063″2.12″1.32″2.44″.63″2.38″0.75″4
1-1/4″1.38″5.25″3.88″2.50″.063″2.50″1.66″2.56″.69″2.50″0.75″4
1-1/2″1.61″6.12″4.50″2.88″.063″2.75″1.90″2.69″.75″2.63″0.88″4
2″2.07″6.50″5.00″3.62″.063″3.31″2.38″2.75″.82″2.69″0.75″8
2-1/2″2.47″7.50″5.88″4.12″.063″3.94″2.88″3.00″.94″2.94″0.88″8
3″3.07″8.25″6.62″5.00″.063″4.62″3.50″3.12″1.06″3.06″0.88″8
3-1/2″3.55″9.00″7.25″5.50″.063″5.25″4.00″3.19″1.13″3.13″0.88″8
4″4.03″10.00″7.88″6.19″.063″5.75″4.50″3.38″1.19″3.32″0.88″8
5″5.05″11.00″9.25″7.31″.063″7.00″5.56″3.88″1.32″3.82″0.88″8
6″6.07″12.50″10.62″8.50″.063″8.12″6.63″3.88″1.38″3.82″0.88″12
8″7.98″15.00″13.00″10.62″.063″10.25″8.63″4.38″1.56″4.32″1.00″12
10″10.02″17.50″15.25″12.75″.063″12.62″10.75″4.62″1.82″4.56″1.12″16
12″12.00″20.50″17.75″15.00″.063″14.75″12.75″5.12″1.94″5.06″1.25″16
14″13.25″23.00″20.25″16.25″.063″16.75″14.00″5.62″2.06″5.56″1.25″20
16″15.25″25.50″22.50″18.50″.063″19.00″16.00″5.75″2.19″5.69″1.38″20
18″17.25″28.00″24.75″21.00″.063″21.00″18.00″6.25″2.32″6.19″1.38″24
20″19.25″30.50″27.00″23.00″.063″23.12″20.00″6.38″2.44″6.32″1.38″24
22″21.25″33.00″29.25″25.25″.063″25.25″22.00″6.50″2.57″6.44″1.62″24
24″23.25″36.00″32.0″27.25″.063″27.62″24.00″6.62″2.69″6.56″1.62″24

WN CLASS 400 (IN INCH)

Weld neck flange dimensions class 400 (ASME B16.5) in inches

Flange NPSInside

القطر

في الخارج

القطر

Bolt Circle

(BC)

Raised Face

(R)

Raised Face

(RF)

HH1Raised Face

Thickness (T)

T1Flat Face

Thickness (T2)

Bolt Hole

(B)

No. of

Bolt Holes

1/2″.55″3.75″2.62″1.38″.250″1.50″0.84″2.31″0.56″2.06″0.62″4
3/4″.74″4.62″3.25″1.69″.250″1.88″1.05″2.50″0.62″2.25″0.75″4
1″.96″4.88″3.50″2.00″.250″2.12″1.32″2.69″0.69″2.44″0.75″4
1-1/4″1.28″5.25″3.88″2.50″.250″2.50″1.66″2.87″0.81″2.62″0.75″4
1-1/2″1.50″6.12″4.50″2.88″.250″2.75″1.90″3.00″0.88″2.75″0.88″4
2″1.94″6.50″5.00″3.62″.250″3.31″2.38″3.13″1.00″2.88″0.75″8
2-1/2″2.32″7.50″5.88″4.12″.250″3.94″2.88″3.37″1.12″3.12″0.88″8
3″2.90″8.25″6.62″5.00″.250″4.62″3.50″3.50″1.25″3.25″0.88″8
3-1/2″3.36″9.00″7.25″5.50″.250″5.25″4.00″3.63″1.38″3.38″1.00″8
4″3.83″10.00″7.88″6.19″.250″5.75″4.50″3.75″1.38″3.50″1.00″8
5″4.81″11.00″9.25″7.31″.250″7.00″5.56″4.25″1.50″4.00″1.00″8
6″5.76″12.50″10.62″8.50″.250″8.12″6.63″4.31″1.62″4.06″1.00″12
8″7.63″15.00″13.00″10.62″.250″10.25″8.63″4.87″1.88″4.62″1.12″12
10″9.75″17.50″15.25″12.75″.250″12.62″10.75″5.13″2.12″4.88″1.25″16
12″11.75″20.50″17.75″15.00″.250″14.75″12.75″5.63″2.25″5.38″1.38″16
14″13.00″23.00″20.25″16.25″.250″16.75″14.00″6.13″2.38″5.88″1.38″20
16″15.00″25.50″22.50″18.50″.250″19.00″16.00″6.25″2.50″6.00″1.50″20
18″17.00″28.00″24.75″21.00″.250″21.00″18.00″6.75″2.62″6.50″1.50″24
20″19.00″30.50″27.00″23.00″.250″23.12″20.00″6.87″2.75″6.62″1.62″24
22″21.00″33.00″29.25″25.25″.250″25.25″22.00″7.00″2.88″6.75″1.75″24
24″23.00″36.00″32.00″27.25″.250″27.62″24.00″7.13″3.00″6.88″1.88″24

WN CLASS 600 (IN INCH)

Weld neck flange dimensions class 600 (ASME B16.5) in inches

Flange NPSInside

القطر

في الخارج

القطر

Bolt Circle

(BC)

Raised Face

(R)

Raised Face

(RF)

HH1Raised Face

Thickness (T)

T1Flat Face

Thickness (T2)

Bolt Hole

(B)

No. of

Bolt Holes

1/2″0.55″3.75″2.62″1.38″.250″1.50″0.84″2.31″0.56″2.06″0.62″4
3/4″0.74″4.62″3.25″1.69″.250″1.88″1.05″2.50″0.62″2.25″0.75″4
1″0.96″4.88″3.50″2.00″.250″2.12″1.32″2.69″0.69″2.44″0.75″4
1-1/4″1.28″5.25″3.88″2.50″.250″2.50″1.66″2.87″0.81″2.62″0.75″4
1-1/2″1.50″6.12″4.50″2.88″.250″2.75″1.90″3.00″0.88″2.75″0.88″4
2″1.94″6.50″5.00″3.62″.250″3.31″2.38″3.13″1.00″2.88″0.75″8
2-1/2″2.32″7.50″5.88″4.12″.250″3.94″2.88″3.37″1.12″3.12″0.88″8
3″2.90″8.25″6.62″5.00″.250″4.62″3.50″3.50″1.25″3.25″0.88″8
3-1/2″3.36″9.00″7.25″5.50″.250″5.25″4.00″3.63″1.38″3.38″1.00″8
4″3.83″10.75″8.50″6.19″.250″6.00″4.50″4.25″1.5″4.00″1.00″8
5″4.81″13.00″10.50″7.31″.250″7.44″5.56″4.75″1.75″4.50″1.12″8
6″5.76″14.00″11.50″8.50″.250″8.75″6.63″4.87″1.88″4.62″1.12″12
8″7.63″16.50″13.75″10.62″.250″10.75″8.63″5.50″2.19″5.25″1.25″12
10″9.75″20.00″17.00″12.75″.250″13.5″10.75″6.25″2.50″6.00″1.38″16
12″11.75″22.00″19.25″15.00″.250″15.75″12.75″6.37″2.62″6.12″1.38″20
14″13.00″23.75″20.75″16.25″.250″17.00″14.00″6.75″2.75″6.50″1.50″20
16″15.00″27.00″23.75″18.50″.250″19.50″16.00″7.25″3.00″7.00″1.62″20
18″17.00″29.25″25.75″21.00″.250″21.50″18.00″7.50″3.25″7.25″1.75″20
20″19.00″32.00″28.50″23.00″.250″24.00″20.00″7.75″3.50″7.50″1.75″24
22″21.00″34.25″30.63″25.25″.250″26.25″22.00″8.00″3.75″7.75″1.75″24
24″23.00″37.00″33.00″27.25″.250″28.25″24.00″8.25″4.00″8.00″2.00″24

WN CLASS 900 (IN INCH)

Weld neck flange dimensions class 900 (ASME B16.5) in inches

lange NPSInside

القطر

في الخارج

القطر

Bolt Circle

(BC)

Raised Face

(R)

Raised Face

(RF)

HH1Raised Face

Thickness (T)

T1Flat Face

Thickness (T2)

Bolt Hole

(B)

No. of

Bolt Holes

3″2.90″9.50″7.50″5.00″.250″5.00″3.50″4.25″1.50″4.00″1.00″8
4″3.83″11.50″9.25″6.19″.250″6.25″4.50″4.75″1.75″4.50″1.25″8
5″4.81″13.75″11.00″7.31″.250″7.50″5.56″5.25″3.00″5.00″1.38″8
6″5.76″15.00″12.50″8.50″.250″9.25″6.63″5.75″2.19″5.50″1.25″12
8″7.63″18.50″15.50″10.63″.250″11.75″8.63″6.63″2.50″6.38″1.50″12
10″9.75″21.50″18.50″12.75″.250″14.50″10.75″7.50″2.75″7.25″1.50″16
12″11.75″24.00″21.00″15.00″.250″16.50″12.75″8.13″3.13″7.88″1.50″20
14″13.00″25.25″22.00″16.25″.250″17.75″14.00″8.63″3.38″8.38″1.63″20
16″15.00″27.75″24.25″18.50″.250″20.00″16.00″8.75″3.50″8.50″1.75″20
18″17.00″31.00″27.00″21.00″.250″22.25″18.00″9.25″4.00″9.00″2.00″20
20″19.00″33.75″29.50″23.00″.250″24.50″20.00″10.00″4.25″9.75″2.13″20
24″23.00″41.00″35.50″27.25″.250″29.50″24.00″11.75″5.50″11.50″2.63″20

WN CLASS 1500 (IN INCH)

Weld neck flange dimensions class 1500 (ASME B16.5) in inches

 

Flange NPSInside

القطر

في الخارج

القطر

Bolt Circle

(BC)

Raised Face

(R)

Raised Face

(RF)

HH1Raised Face

Thickness (T)

T1Flat Face

Thickness (T2)

Bolt Hole

(B)

No. of

Bolt Holes

1/2″0.55″4.75″3.25″1.38″.250″1.50″0.84″2.63″0.88″2.38″0.88″4
3/4″0.74″5.13″3.50″1.69″.250″1.75″1.05″3.00″1.00″2.75″0.88″4
1″0.96″5.88″4.00″2.00″.250″2.06″1.32″3.13″1.13″2.88″1.00″4
1-1/4″1.28″6.25″4.38″2.50″.250″2.50″1.66″3.13″1.13″2.88″1.00″4
1-1/2″1.50″7.00″4.88″2.88″.250″2.75″1.90″3.50″1.25″3.25″1.13″4
2″1.94″8.50″6.50″3.63″.250″4.13″2.38″4.25″1.50″4.00″1.00″8
2-1/2″2.32″9.63″7.50″4.13″.250″4.88″2.88″4.38″1.63″4.13″1.13″8
3″2.90″10.50″8.00″5.00″.250″5.25″3.50″4.88″1.88″4.63″1.25″8
4″3.83″12.25″9.50″6.19″.250″6.38″4.50″5.13″2.13″4.88″1.38″8
5″4.81″14.75″11.50″7.31″.250″7.75″5.56″6.38″2.88″6.13″1.63″8
6″5.76″15.50″12.50″8.50″.250″9.00″6.63″7.00″3.25″6.75″1.50″12
8″7.63″19.00″15.50″10.63″.250″11.50″8.63″8.63″3.63″8.38″1.75″12
10″9.75″23.00″19.00″12.75″.250″14.50″10.75″10.25″4.25″10.00″2.00″12
12″11.75″26.50″22.50″15.00″.250″17.75″12.75″11.38″4.88″11.13″2.13″16
14″13.00″29.50″25.00″16.25″.250″19.50″14.00″12.00″5.25″11.75″2.38″16
16″15.00″32.50″27.75″18.50″.250″21.75″16.00″12.50″5.75″12.25″2.63″16
18″17.00″36.00″30.50″21.00″.250″23.50″18.00″13.13″6.38″12.88″2.88″16
20″19.00″38.75″32.75″23.00″.250″25.25″20.00″14.25″7.00″14.00″3.13″16
24″23.00″46.00″39.00″27.25″.250″30.00″24.00″16.25″8.00″16.00″3.63″16

WN CLASS 2500 (IN INCH)

Weld neck flange dimensions class 2500 (ASME B16.5) in inches

Flange NPSInside

القطر

في الخارج

القطر

Bolt Circle

(BC)

Raised Face

(R)

Raised Face

(RF)

HH1Raised Face

Thickness (T)

T1Flat Face

Thickness (T2)

Bolt Hole

(B)

No. of

Bolt Holes

1/2″0.55″5.25″3.50″1.38″.250″1.69″0.84″3.13″1.19″2.88″0.88″4
3/4″0.74″5.50″3.75″1.69″.250″2.00″1.05″3.38″1.25″3.13″0.88″4
1″0.96″6.25″4.25″2.00″.250″2.25″1.32″3.75″1.38″3.50″1.00″4
1-1/4″1.28″7.25″5.13″2.50″.250″2.88″1.66″4.00″1.50″3.75″1.13″4
1-1/2″1.50″8.00″5.75″2.88″.250″3.13″1.90″4.63″1.75″4.38″1.25″4
2″1.94″9.25″6.75″3.63″.250″3.75″2.38″5.25″2.00″5.00″1.13″8
2-1/2″2.32″10.50″7.75″4.13″.250″4.50″2.88″5.88″2.25″5.63″1.25″8
3″2.90″12.00″9.00″5.00″.250″5.25″3.50″6.88″2.63″6.63″1.38″8
4″3.83″14.00″10.75″6.19″.250″6.50″4.50″7.75″3.00″7.50″1.63″8
5″4.81″16.50″12.75″7.31″.250″8.00″5.56″9.25″3.63″9.00″1.88″8
6″5.76″19.00″14.50″8.50″.250″9.25″6.63″11.00″4.25″10.75″2.13″8
8″7.63″21.75″17.25″10.63″.250″12.00″8.63″12.75″5.00″12.50″2.13″12
10″9.75″26.50″21.25″12.75″.250″14.75″10.75″16.75″6.50″16.50″2.63″12
12″11.75″30.00″24.38″15.00″.250″17.38″12.75″18.50″7.25″18.25″2.88″12

 

ANSI B16.5 Weld Neck Flange Schedule Chart, Weld Neck Flange Thickness Chart

WELDING NECK FLANGES BORES (in inchines)
Nom

أنبوب

الحجم

في الخارج

Diam

جدول

10

جدول

20

جدول

30

Std.

الحائط

جدول

40

جدول

60

Extra

Strong

جدول

80

جدول

100

جدول

120

جدول

140

جدول

160

Double

Extra

Strong

1/2”0.8400.674––0.6220.622–0.5460.546–––0.4640.252
3/4”1.0500.884––0.8240.824–0.7420.742–––0.6120.434
1”1.3151.097––1.0491.049–0.9570.957–––0.8150.599
1.1/4”1.6601.442––1.3801.380–1.2781.278–––1.1600.896
1.1/2”1.9001.682––1.6101.610–1.5001.500–––1.3381.100
2”2.3752.157––2.0672.067–1.9391.939–––1.6871.503
2.1/2”2.8752.635––2.4692.469–2.3232.323–––2.1251.771
3”3.5003.260––3.0683.068–2.9002.900–––2.6242.300
3-1/2”4.0003.760––3.5483.548–3.3643.364––––2.728
4”4.5004.260––4.0264.026–3.8263.826–3.624–3.4383.152
5”5.5635.295––5.0475.047–4.8134.813–4.563–4.3134.063
6”6.6256.357––6.0656.065–5.7615.761–5.501–5.1874.897
8”8.6258.3298.1258.0717.9817.9817.8137.6257.6257.4377.1877.0016.8136.875
10”10.75010.42010.25010.13610.02010.0209.7509.7509.5629.3129.0628.7508.5008.750
12”12.75012.39012.25012.09012.00011.93811.62611.75011.37411.06210.75010.50010.12610.750
14”14.00013.50013.37613.25013.25013.12412.81213.00012.50012.12411.81411.50011.188–
16”16.00015.50015.37615.25015.25015.00014.68815.00014.31213.93813.56413.12412.812–
18”18.00017.50017.37617.12417.25016.87616.50017.00016.12415.68815.25014.87614.438–
20”20.00019.50019.25019.00019.25018.81218.37619.00017.93817.43817.00016.50016.062–
24”24.00023.50023.25022.87623.25022.62422.06223.00021.56220.93820.37619.87619.312–
30”30.00029.37629.00028.75029.250––29.000––––––
36”36.00035.37635.00034.75035.25034.500–35.000––––––
42”42.000–––41.250––41.000–     

Weld Neck Flange Weight Chart

ANSI B16.5 WELD NECK FLANGES WEIGHT (KGS)
Nom

أنبوب

الحجم

150#300#600#900#1500#2500#
 WNS/OB/KWNS/OB/KWNS/OB/KWNS/OB/KWNS/OB/KWNS/OB/K
1/2”0.70.40.50.80.70.80.90.80.82.11.81.92.11.81.93.233
3/4”0.80.70.81.41.21.21.61.41.42.72.42.72.72.42.73.644.5
1”1.10.80.91.71.41.51.91.71.73.93.63.73.93.63.75.455
1.1/4”1.51.21.32.21.822.62.12.44.54.14.34.54.14.37.888
1.1/2”1.81.41.63.22.72.93.63.13.46.25.45.96.25.45.911.51111
2”2.72.22.63.63.23.54.73.94.411.310.511.311.310.511.3191717
2.1/2”4.43.54.15.44.55.34.85.46.816.315.81616.315.816242525
3”5.23.85.17.35.97.28.77.38.91512.316.82121.519.542.63839
3-1/2”6.456.58.97.59.211.6912.7–––––––––
4”7.55.67.511.81012.218.416.518.62423.224.531.83133645860
5”9.26.59.21612.5163128.530.838.537.539.55958.86011195101
6”11.08.111.820.216.5223736.2385048.351.5727475171146156
8”18.41320.431.225.53654.551.562.2857589124112125261220242
10”25.518.43144.3355598.576.2102123110131207184215485420465
12”3728.54763.55282.510589.5132168146187306264316698590665
14”5137.5608673108150102158198172224416–––––
16”61.544.56111288139177150225225192259567–––––
18”71.55493141115178228180285318272383736–––––
20”8572127173139228285231365376330482929–––––
24”119951902482123503723305326806329051504–––––

DIMENSIONAL TOLERANCE WELDING NECK FLANGE

CertificatePlate thickness in mmWidth in mmLength in mm
القطر الخارجيWhen O is 24″ or less. When O is over 24″.±0.06″ ±0.12″±1.6 mm±3.2 mm
Diameter of Contact Face0.06″ (1.6 mm) raised face. 0.25″ (6.4 mm) raised face.±0.03″ ±0.02″±0.8 mm±0.5mm
Diameter of Hub at Point of WeldingNPS 5 and smaller. NPS 6 and larger.+0.09″, -0.03″ +0.16″, -0.03″+2.4 mm, -0.8mm+4.0 mm, -0.8 mm
Inside DiameterNPS 10, 12, 18, 20 and larger.+0.03″ +0.06″ +0.12″, -0.06″+0.8 mm +1.6 mm+3.2 mm, -1.6 mm
Diameter of Hub at BaseHub Base is 24″or less. Hub Base is over 24″.+0.06″ +0.12″+1.6 mm+3.2 mm
السُمكNPS 18 and smaller. NPS 20 and larger.+0.12″ +0.19″+3.2 mm+4.8 mm
Drilling and FacingsBolt circle diameter Bolt Hole Spacing±0.06″ ±0.03″±1.6 mm±0.8 mm
Eccentricity of Bolt Circle and FacingNPS 2 1/2 and smaller. NPS 3 and larger.±0.03″ ±0.06″±0.8 mm±1.6 mm
Length Through HubNPS 10 and smaller. NPS 12 and larger.±0.06″ ±0.12″±1.6 mm±3.2 mm

Standards Referred for WN flange

Material Standards

  • ASTM A105/N For carbon steel weld neck flange
  • ASTM A182 F11, F22 for alloy steel
  • ASTM A182 F304 / F304L, F316 / F316L for stainless steel weld neck flange.

معايير التصنيع

  • ASME B16.5
  • ASME B16.47
  • BS 3293
  • DIN 2630 PN 1 and PN 2.5, 2631 PN 6, 2632 PN 10, 2634 PN 16, 2634 PN 25, 2635 PN 40

Weld Neck Flanges Price List

Weld Neck Flange typeWeld Neck Flange Price in USD
Stainless Steel Weld Neck FlangeUSD $ 10.45 /Kg
Carbon steel Weld neck flangesUSD $ 65.89 /Kg
Alloy steel Weld neck flangesUSD $ 55.36 /Kg
ANSI b16 5 Weld neck flangesUSD $ 65.56 /Kg
ASME b16.47 Weld neck flangesUSD $ 75.56 /Kg

 

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