B16.5 Class 150 Carbon Steel RF Weld Neck Flange Enquiry
For industrial sourcing
Prepare a clearer RFQ
Include the details below so RELIA can understand the part and discuss the next step with you.
- Drawing, sample, or reference standard
- Material grade and preferred process
- Dimensions, tolerances, and surface finish
- Application, target quantity, and destination
Production timing, packing, and shipping terms are confirmed for each project after specifications and trade terms are agreed.
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warranty1 yearcustomized supportOEM, ODM, OBM
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model numberflange 4103TechnicForged
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ConnectivityWeldingshapeEqual
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head codeHexagonSurface TreatmentPainting
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Mounting hole diameter0.2 inPipe Class150
A weld-neck flange enquiry needs to define both the pipe connection and the bolted sealing interface. This title identifies carbon steel, raised-face and Class 150 requirements with a B16.5 reference. Confirm the selected weld-neck model and its drawing before assessing those requirements, since generic flange options and mixed images do not establish one construction for every item.
Match the neck to the mating pipe
Provide pipe outside diameter and wall thickness or schedule, then request the selected neck and bore geometry and weld preparation. Explain what the millimetre size option measures and identify the individual nominal size. Check the pipe connection, flange envelope and installation space together. A product image may illustrate a flange form, but it cannot supply measured neck dimensions or establish the actual end preparation offered.
Define the raised-face Class 150 interface
Specify the B16.5 edition, required Class 150 and facing acceptance details. Obtain flange thickness, bolt circle, all hole dimensions and the sealing-face specification on the same drawing, matched to the adjoining flange and sealing arrangement. Request dimensional conformity and material-dependent rating evidence for the selected configuration. A class label or a generic mounting-hole field alone cannot establish the complete compatible joint.
Confirm grade and fabrication acceptance
Select the carbon-steel variant and state its exact material grade and governing specification. Stainless-steel alternatives require their own grade assessment. If forged manufacture is required, obtain traceable production and inspection records for that item. Provide actual fluid, operating pressure and temperature alongside welding, assembly and examination requirements. Assess the material, pipe interface and complete flanged joint against those conditions; surface appearance and general process labels do not qualify route or service. The enquiry should identify one drawing, grade and documented duty requirement.
Technical information for every product inquiry
Prepare the requirement before final product confirmation.
The product page is a starting point. Drawings, samples, interfaces, materials, quantities and acceptance requirements are reviewed before stock matching or custom production is confirmed.
Discuss this product in your project context.
Share the available drawing, sample, reference, target quantity and application information. Unknown items can remain open for review.
