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Adaptor Backing Flange
Flanges, Inserts & Adaptors

Adaptor Backing Flange

LSCFA series, DN 15 to DN 300

Cast iron backing flange for coupling a glass end to a flange with a different bolt configuration — supplied with an insert, undrilled or drilled to Table E, F or ASA 150.

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At a glance
Product typeAdaptor backing flange
MaterialCast iron
Nominal bore rangeDN 15 to DN 300
SupplySupplied with insert; generally undrilled
Flange drillingBS 10 Table E, BS 10 Table F or ASA 150 if specified
Catalogue referenceLSCFA series

Product overview

What it does, and where it fits.

The adaptor backing flange is used to couple a glass end to a flange having a different bolt configuration. This flange is made of cast iron and is supplied with an insert.

It is particularly used to fit a glass equipment on a non-glass equipment such as a glass-lined reactor. Where the adaptor bellow flange terminates a bellow, this one terminates the glass itself.

Adaptor backing flanges are generally supplied undrilled. However, if specified, these can be supplied drilled as per Table E and ASA 150 standards; Table F drilling is tabulated as well. All three drilled patterns are given below.

Features

Built into every unit.

  • Couples a glass end to a flange with a different bolt configuration
  • Cast iron, supplied with an insert
  • Particularly used to fit glass equipment onto non-glass equipment
  • Generally supplied undrilled
  • Drilled to Table E, Table F or ASA 150 on request
  • DN 15 to DN 300 in nine catalogue references

Benefits

Why it earns its place in the line.

  • Lets a glass line terminate directly on plant that was never built to glass drilling
  • Supplied with the insert, so the glass bead is protected from the outset
  • Three drilled standards tabulated, plus an undrilled option for anything else

Applications & industries

Where it is specified.

Typical applications

  • Bolting a glass pipeline onto a glass-lined reactor nozzle
  • Connecting glass equipment to steel vessels, pumps and headers
  • Adapting between glass-standard and BS or ASA drilling

Industries served

  • Chemical processing
  • Pharmaceutical
  • Fine chemicals & dyes
  • Distillation & solvent recovery
  • Water & effluent treatment
  • Agrochemicals
  • Research & pilot plant

Technical data

Specification for Adaptor Backing Flange.

Figures below are for this product only — every item in the range carries its own dimension table.

Adaptor Backing Flange — technical specification
Product typeAdaptor backing flange
MaterialCast iron
Nominal bore rangeDN 15 to DN 300
SupplySupplied with insert; generally undrilled
Flange drillingBS 10 Table E, BS 10 Table F or ASA 150 if specified
Catalogue referenceLSCFA series
Dimension schematic of a cast iron adaptor backing flange with insert, showing D, D1 and L
Dimension references — letters match the table.
Adaptor Backing Flange — undrilled flanges
Cat. Ref.DNDD1D2L
LSCFA 071570293010
LSCFA 125115434110
LSCFA 1.540150586610
LSCFA 250165708112
LSCFA 38020010111212
LSCFA 410022013414815
LSCFA 615028518619615
LSCFA 922539526028215
LSCFA 1230044534236318

All dimensions in mm, transcribed exactly from the catalogue page.

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Adaptor Backing Flange — drilling to Table E, Table F and ASA 150
SizeTable E ref.E — PCDE — n × dTable F ref.F — PCDF — n × dASA 150 ref.ASA — PCDASA — n × d
LSCFA 07LSCFA 07/E674 × 12LSCFA 07/F674 × 16LSCFA 07/A604 × 16
LSCFA 1LSCFA 1/E824 × 12LSCFA 1/F874 × 16LSCFA 1/A794 × 16
LSCFA 1.5LSCFA 1.5/E984 × 12LSCFA 1.5/F1054 × 16LSCFA 1.5/A984 × 16
LSCFA 2LSCFA 2/E1144 × 16LSCFA 2/F1274 × 16LSCFA 2/A1214 × 16
LSCFA 3LSCFA 3/E1464 × 16LSCFA 3/F1654 × 16LSCFA 3/A1524 × 19
LSCFA 4LSCFA 4/E1784 × 16LSCFA 4/F1904 × 16LSCFA 4/A1908 × 19
LSCFA 6LSCFA 6/E2358 × 19LSCFA 6/F2608 × 19LSCFA 6/A2418 × 19
LSCFA 9LSCFA 9/E32412 × 19LSCFA 9/F35612 × 23LSCFA 9/A2988 × 19
LSCFA 12LSCFA 12/E40612 × 23LSCFA 12/F43812 × 23LSCFA 12/A43212 × 23

All dimensions in mm, transcribed exactly from the catalogue page. n × d is the number of holes × hole diameter.

FAQ

Questions we are asked about this item.

What they terminate. The adaptor backing flange couples a glass end to a differently drilled flange; the adaptor bellow flange does the same job for a bellow. Both are cast iron and both are usually supplied undrilled.

Yes — the catalogue states it is supplied with insert. The insert is the split ring that bears on the glass bead.

Yes. Table E and ASA 150 are called out in the catalogue text, and Table F is tabulated as well. All three patterns are listed above.

Enquiry

Tell us your line size — we'll confirm the spec.

Send the bore, the media, the temperature and pressure, and the flange standard you work to. Drawings and custom sizes welcome.

Not sure which spec fits your process?

Send your requirement — media, temperature, pressure, dimensions — and we'll recommend the right product or fabricate it.

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