Industry
Piping components for fine chemical
Fine chemical plant runs many products through the same lines. The component has to survive the worst of them, not the average.
- Product ranges
- 3
- Materials
- 3 families
- Product standards
- ASME B16.9, ASME B16.11, ASME B16.5
The requirement
What fine chemical demand of a fitting
Batch and speciality chemical manufacturing puts a wider variety of media through a given line than continuous process plant does. Material selection has to be made against the most aggressive service the line will see, including cleaning and changeover chemistry, not against the nominal product.
Stainless covers a great deal of this scope. Where chlorides, acids or elevated temperature combine, duplex and super duplex extend the service life enough to justify the material cost, usually decided on pitting resistance rather than strength.
Reactor and vessel connections, sampling points and instrument hookups make up a large share of the fitting count, which is why forged Class 3000 and 6000 fittings feature heavily alongside the buttweld scope.
IllustrationWhere these components sit
- Reactor feed, discharge and recirculation lines
- Solvent and acid transfer circuits
- Sampling points and instrument connections
- Heat transfer, jacket and utility circuits
- Vent, scrubber and effluent lines
Specification points that matter here
- Select material against the most aggressive service including cleaning chemistry
- Duplex or super duplex where chlorides and temperature combine
- Forged Class 3000 / 6000 for small-bore reactor and instrument connections
- Spectacle blinds and paddle blinds for positive isolation during changeover
- Confirm gasket and sealing face requirements alongside the fitting specification
Ranges for this sector
What we supply into it
The categories most often specified for this service. Every one carries the full range behind it.
- Buttweld FittingsButtweld elbows, bends, tees, reducers and caps welded end to end with the pipe, for a joint as strong as the pipe itself and a smooth, leak-free bore.View 14 products
- Forged FittingsSocket weld and threaded fittings machined from solid forgings, for strong, compact joints on small-bore, high-pressure lines such as drains, vents and gauge points.View 15 products
- FlangesFlanges that make a bolted, gasketed joint at equipment, valves and spool breaks, so a line can be opened again for isolation, inspection or replacement.View 22 products
Commonly specified products
The individual products this sector orders most often.
Forged 90° ElbowForged 90° elbows to ASME B16.11, socket weld and threaded, 1/8″ to 4″, in A182 stainless, A105 carbon and Cr-Mo alloy steel.View specifications
90° Elbow (LR & SR)Buttweld 90° elbows in long and short radius to ASME B16.9, in carbon, stainless and alloy steel, with dimension tables by material and class.View specifications
Spectacle BlindSpectacle blinds to ASME B16.48 (a solid and an open disc in a figure 8), 1/2″ to 48″, Class 150 to 2500, for line isolation.View specifications
Paddle BlindPaddle blinds (spades) to ASME B16.48 for isolating a line between two flanges, 1/2″ to 48″, up to Class 2500, in A105 carbon steel.View specifications
Forged AdapterForged adapters joining different pipe sizes or end types, socket weld and threaded, 1/8″ to 4″, in stainless, duplex and nickel alloys.View specifications
Reducing TeeButtweld reducing tees to ASME B16.9 with a branch smaller than the run, in carbon, stainless and alloy steel, with mild steel size tables.View specifications
Standards that apply
Scope and key points for each are on the standards reference; dimensions and pressure classes are in the Technical Catalog.
Enquiries
Need components for Fine Chemical?
Send the line list, the isometric or the bill of materials and a sales engineer will come back with grades, availability and pricing against the standards above.