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Contact Person : Joy Wang
Phone Number : 0086-21-31261985
WhatsApp : +8613524668060

Lap Joint Stub End Butt Weld Fittings 316L ASME B16.9 DN80 SCH10S Type A

  • Lap Joint Stub End Butt Weld Fittings 316L ASME B16.9 DN80 SCH10S Type A
  • Lap Joint Stub End Butt Weld Fittings 316L ASME B16.9 DN80 SCH10S Type A
  • Lap Joint Stub End Butt Weld Fittings 316L ASME B16.9 DN80 SCH10S Type A
Place of Origin Zhejiang, China
Brand Name HANPIPE
Certification ISO 9001:2015 / PED / EN 10204 3.1
Model Number BW-FITTING
Minimum Order Quantity 10 Pieces
Price USD 8-260 / Piece
Packaging Details Seaworthy wooden case or pallet with plastic end caps, customized marking available
Delivery Time 15-25 days after deposit
Payment Terms T/T,L/C,Western Union
Supply Ability 80000 Pieces per Month
Product Details
Product Name Lap Joint Stub End Butt Weld Fittings Application Removable Flanged Joints
Material Grade 316L / 1.4404 Standard ASME B16.9
Size Range DN15 - DN600 Wall Thickness SCH10S - SCH160
Type Type A / Type B Surface Finish Pickled And Passivated
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Lap Joint Stub End

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316L ASME B16.9 Fittings

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Type A Butt Weld Stub End
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Product Description
Lap Joint Stub End Butt Weld Fittings 316L ASME B16.9 DN80 SCH10S Type A
A lap joint stub end butt weld fittings element lets you build a flanged connection that can be rotated and re-aligned before the bolts are tightened. This makes assembly faster and reduces the risk of mismatched bolt holes, especially in cramped or hard-to-reach piping.
The stub end is welded to the pipe, while a separate backing flange slides over the stub. Because the flange is not welded to the pipe, the joint can be opened and the flange reused again and again. This design is widely chosen for lines that need frequent inspection or maintenance.
We manufacture lap joint stub end butt weld fittings to ASME B16.9 in both Type A and Type B, in 316L, 304L, carbon steel, duplex and nickel alloys. The face is machined flat or raised as required, and the bore is pickled and passivated for corrosion resistance.
Each lap joint stub end butt weld fittings element is dimensionally inspected and hydrostatically tested, and is supplied with a material test certificate for full traceability. Whether you need a single DN80 Type A stub end or a complete flanged spool set, we can deliver.
Technical Specifications
Material Grade 316L / 1.4404
Product Type Lap Joint Stub End, Type A / Type B
Size Range DN15 (1/2 inch) - DN600 (24 inch)
Wall Thickness SCH10S - SCH160
Standard ASME B16.9
Pressure Rating Class 150 - Class 2500
Surface Finish Pickled and Passivated
End Connection Butt Weld (BW)
Why Choose Our Lap Joint Stub End Butt Weld Fittings
  • Rotating flange design allows easy bolt hole alignment during assembly
  • The backing flange is reusable, lowering long term maintenance cost
  • Machined face ensures a reliable gasket seal
  • Welded to the pipe for a strong, leaktight connection
  • Made to ASME B16.9 in Type A and Type B profiles
  • Pickled and passivated bore for corrosion resistance
Typical Applications
  • Pipelines requiring regular inspection
  • Pump and valve connections
  • Chemical and process plant spools
  • Marine and offshore flanged joints
  • Water and wastewater pipework
Every Lap Joint Stub End Butt Weld Fittings is packed in seaworthy wooden cases or pallets with protective end caps. We offer customized marking and labeling, and can consolidate mixed sizes in a single shipment to reduce your freight cost and handling time.
As a Lap Joint Stub End Butt Weld Fittings manufacturer, we support custom sizes, wall thicknesses and materials, and arrange third party inspection such as SGS, BV or TUV on request. Our engineers review every enquiry and recommend the material, wall thickness and standard that best match your pressure, temperature and corrosion requirements.
Each Lap Joint Stub End Butt Weld Fittings order is dimensionally inspected against the applicable standard before dispatch, and our quality team retains a sample record that can be re-tested on request. We also welcome factory audits and pre-shipment inspections from overseas buyers, and can supply reference projects and test reports to support your tender documents.
Frequently Asked Questions
What is the advantage of a lap joint stub end?
The backing flange can rotate, so bolt holes line up easily, and the flange can be removed and reused when the joint is opened for maintenance.
What is the difference between Type A and Type B stub ends?
Type A has a straight barrel and Type B a shorter barrel for a closer flange fit. We supply both in lap joint stub end butt weld fittings.
Are these stub ends supplied with certificates?
Yes. Each 316L stub end comes with an EN 10204 3.1 material test certificate.
Can you supply the matching backing flanges?
Yes. We can supply matching lap joint flanges so the complete joint uses one compatible material system.
Tags:

butt welded pipe fittings

butt weld tube fittings

industrial pipe fittings