Learn Piping

The key stuff you need to know to work with piping

Weldolet size MSS SP97
Branch Fittings MSS-SP 97

Weldolet Dimensions Charts (MSS-SP 97)

Weldolet dimensions and weights (“center of the run to Weldolet face”,  “size-on-size” and “reducing” Weldolets sizes by NPS and schedule, and “run sizes combinations”). WELDOLET

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Hydrostatic test
Miscellaneous Technical

What is a Hydrostatic Test?

The hydrostatic test consists of filling a piece of equipment with a fluid at test pressure, for a given period of time, to check the

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Ferrule fittings
Miscellaneous Technical

Double Ferrule Compression Fittings

Compression fittings are used to create leak-free tube connections easily and quickly. Double ferrule compression fittings feature an outer nut, two deformable ferrules in soft alloy or

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Stub end fittings ASA MSS
Buttweld Fittings ASME B16.9

Stub Ends for Flanged Joints

What is a stub end and why should it be used? Stub ends are buttweld fittings that can be used (in combination with a lap

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ASTM vs En pipe specifications
Pipe Specifications

ASTM vs. EN Pipe Specifications

An overview of the most common ASTM and EN/DIN pipe specifications, material grades within each specification, and, when possible, the equivalent grades between ASTM vs.

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Coated pipe
Pipe Specifications

Pipe Coating, Lining and Cladding

What is the difference between external pipe coating and internal pipe-lining and cladding? External pipe coatings are used to protect the metal from corrosive environments

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BWG and SWG tube size
Process Instrumentation

BWG and SWG Tube Size Chart

BWG and SWG are alternative measurements for steel tubing sizes (outside diameter and wall thickness). BWG stands for “Birmingham Wire Gauge” (or “Stubs Iron Wire

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