The neck of ANSI Long Welding Neck Flange is a straight pipe instead of a tapered reducer. Among the common flanges, its structural strength is the best. We can also make long neck welding flanges of other sizes according to customer requirements.
Features of long welding neck flange: The neck height is higher, which improves the rigidity and bearing capacity of the ANSI Long Welding Neck Flange.
Compared with the butt welding flange, the long high neck flange has a large welding workload and high electrode consumption, and cannot withstand high temperature and high pressure, repeated bending and temperature fluctuations, but the on-site installation is more convenient, and the welding process can be omitted. , is more popular. And the use of long high-necked flanges can also avoid welding difficulties caused by too thin wall thickness at the end of the flange neck.
Sealing surface: flat surface (FF), raised surface (RF), concave-convex surface (MFM), tongue and groove surface (TG), ring joint surface (RJ)
Connection method: flange nut, bolt connection
Production process: professional overall forging, forging.
Processing methods: high-precision CNC lathe turning, ordinary lathe finishing, argon arc welding and other processing.
Product Parameters
|
Standard |
Nominal Diameter(mm) |
Pressure Class (LB/MPa/kg/cm²) |
Material |
|
ASME B16.5，ANSI B16.5，ASME B16.47 |
DN15-DN3000 |
150,300,600,900,1500,2500 |
Carbon steel Stainless steel |
|
DIN |
DN15-DN250 |
PN10, PN16, PN25, etc. |
Carbon steel Stainless steel |
|
GB/T 9112~9124-2010 |
DN15-DN3000 |
PN1.0, PN1.6, PN2.0, PN5.0, PN10.0, PN15.0, PN25.0, PN42 |
Carbon steel Stainless steel |
|
EN 1092 |
DN15-DN3000 |
PN2.5; PN6; PN10; PN16; PN25; PN40; PN63; PN100; PN160 |
Carbon steel Stainless steel |
|
BS 3293, 4504, 4505 |
DN15-DN3000 |
PN2.5; PN6; PN10; PN16; PN25; PN40; PN63; PN100; PN160 |
Carbon steel Stainless steel |
|
JIS |
DN15-DN500 |
5K, 10K, 16K, 20K |
Carbon steel Stainless steel |
|
Remarks: 1. For the details of this type of flange that you need, you can contact us at any time to provide you the better solution; 2. We have the ability to produce non-standard flanges according to the drawings provided by customers, and can also provide drawings and calculations of flanges according to the design parameters of the flanges. |
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Application
ANSI Long Welding Neck Flange is widely used in boiler pressure vessel, petroleum, chemical industry, shipbuilding, pharmaceutical, metallurgy, machinery, stamping elbow food and other industries.
Package&Transport
The product packaging we use is in full compliance with international and contract standards, no matter which mode of transportation is used, the safe transportation of products can be guaranteed.
After-sales service
A complete after-sales service system can fully attract users to buy with confidence and gain user trust, resulting in continuous repurchase. Therefore, after-sales service must be standardized and standardized. Therefore, whether it is in transportation, product quality, installation and maintenance, etc., we will answer customers' questions and provide effective solutions throughout the day.
QA
Q1: Is there any limit to the order quantity?
A1: No, whether it is a large order or a small order, we will meet your needs.
Q2: Can I use my own forwarder to ship the products?
A2: Sure.
Q3: Can you customize for me?
A3: We accept all custom orders, just contact us and give me your design. We will provide you with a reasonable price and provide you with samples as soon as possible.
Q4: Can you tell me the payment method?
A4: According to the amount of your order, you need to pay 30% of the advance payment, please pay the balance before delivery.
Q5: How long is your production lead time?
A5: It depends on the product and order quantity.
Q7: When can I get the quotation?
A7: We usually quote you within 24 hours after we get your inquiry. If you need a quotation urgently. Please call us or tell us in your mail so that we will regard your inquiry priority.
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