+91 90336 30547 latascientific@gmail.com
ISO-aligned QC · Borosilicate 3.3 · Pan India supply network
PTFE lined distance piece showing vent hole, outer diameter and inner liner
Lined Pipes & Spools

PTFE Lined Distance Piece

Short lined make-up length, NB 1/2" to 16", 60–200 mm

Short lined length used to close the gap between two flanged items — supplied NB 1/2" to 16" with face-to-face lengths from 60 mm to 200 mm.

Request a quotation Full technical data and dimensions Request the datasheet
At a glance
Product typeLined distance piece
Body / steel gradeASTM A 106 Gr. B pipe, IS 2062 plate / ASTM A 105 flanges
Lining materialPTFE / PFA / FEP
Liner standardASTM D 1457 / ASTM D 4894-19 (PTFE), ASTM D 3307 (PFA), ASTM D 2116 (FEP)
Lining optionsVirgin or anti-static (conductive black) PTFE to ASTM D 4894 & D 4895, PFA to ASTM D 3307, FEP to ASTM D 2116
Flange standardASME/ANSI B16.5
Flange classClass 150 standard; Class 300 on request
Size rangeNB 1/2" to NB 16"

Product overview

What it does, and where it fits.

A distance piece is a short lined spool used to make up the residual gap in a flanged run, or to give clearance for a valve actuator, an instrument or a removable item. It is lined and flared exactly like a full spool, so the wetted path stays continuous fluoropolymer.

It sits between the lined spacer, which is thinner, and the lined spool pipe, which starts at 100 mm. Distance pieces run from 60 mm to 200 mm face to face depending on bore, and carry a vent hole like any other lined steel component.

Features

Built into every unit.

  • Carbon steel body to ASTM A 106 Gr. B with ASME/ANSI B16.5 Class 150 flanges
  • PTFE, PFA or FEP liner across the whole NB 1/2" – 16" range
  • Face to face 60 mm to 200 mm — closes gaps a spool cannot
  • Vent hole drilled to relieve permeation pressure

Benefits

Why it earns its place in the line.

  • Outstanding corrosion resistance to aggressive organic and inorganic chemicals across a wide temperature range
  • Non-stick, non-wetting bore — low surface energy keeps product moving and simplifies cleaning
  • Chemically inert and pure; no additives, plasticisers, stabilisers or lubricants to contaminate the process fluid
  • The lowest coefficient of friction of any solid, reducing pressure drop and deposit build-up
  • Completely resistant to hydrolysis with an excellent barrier to water permeation
  • Steel strength on the outside, fluoropolymer chemistry on the inside — at a fraction of the cost of solid exotic alloys

Applications & industries

Where it is specified.

Typical applications

  • Making up the residual gap in a flanged lined run
  • Creating clearance for valve actuators and instruments
  • Allowing a lined item to be removed without cutting the line
  • Trimming pipework to as-built dimensions on site

Industries served

  • Chemical processing
  • Pharmaceutical
  • Petrochemical
  • Oil & gas
  • Power generation
  • Pulp & paper
  • Mining & metallurgy
  • Agrochemicals & dyes

Technical data

Specification for PTFE Lined Distance Piece.

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

PTFE Lined Distance Piece — technical specification
Product typeLined distance piece
Body / steel gradeASTM A 106 Gr. B pipe, IS 2062 plate / ASTM A 105 flanges
Lining materialPTFE / PFA / FEP
Liner standardASTM D 1457 / ASTM D 4894-19 (PTFE), ASTM D 3307 (PFA), ASTM D 2116 (FEP)
Lining optionsVirgin or anti-static (conductive black) PTFE to ASTM D 4894 & D 4895, PFA to ASTM D 3307, FEP to ASTM D 2116
Flange standardASME/ANSI B16.5
Flange classClass 150 standard; Class 300 on request
Size rangeNB 1/2" to NB 16"
Temperature rangeContinuous service to 260 °C (PTFE melting point 327 °C, PFA 306 °C, FEP 260 °C)
Pressure ratingASME/ANSI B16.5 Class 150 flanges as standard; Class 300 available on request
Manufacturing standardASTM F 1545
Spark testingEvery lined component spark tested at 5000 × E volts (E = liner thickness in mm), to a maximum of 15 000 V
Hydro testingHydrostatic or pneumatic test according to the lining technique; hydrostatic test on components with vent holes
InspectionDimensional and visual examination of liner and steel parts — weld aspect, overall dimensions, collar size, liner thickness, surface flaws and paint thickness
Vent holes3 mm diameter vent holes — one per fitting; spools under 500 mm get a single central hole, spools over 500 mm get two holes about 150 mm from each end
External protectionZinc epoxy primer, minimum 60 μm dry film, over steel sand-blasted to SA 2.5
CertificationEN 10204 3.1 mill certificates and FDA certification for the fluoropolymer available on request
Face to face60 mm to 200 mm, size dependent
PTFE Lined Distance Piece — face-to-face length and lining availability
SizeLength L min (±2)Length L max (±2)PTFEPFAFEP
0.5"60100✓✓✓
0.75"60100✓✓✓
1"60100✓✓✓
1.5"60100✓✓✓
2"60100✓✓✓
2.5"70120✓✓✓
3"70120✓✓✓
4"80120✓✓✓
6"80150✓✓✓
8"80150✓✓✓
10"80150✓✓✓
12"90200✓✓✓
14"90200✓✓✓
16"90200✓✓✓

All lengths in mm.

Available on request

  • Higher diameters on request
  • Stainless steel body

FAQ

Questions we are asked about this item.

A spacer is thinner — 30 mm to 90 mm — and is used to take up small gaps or to blank a line. A distance piece runs from 60 mm to 200 mm and behaves like a very short spool.

Yes. The table gives the range we line for each bore; any face-to-face length inside that range is made to order.

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.

Enquire on WhatsAppChat to us on +91 90336 30547 Request the datasheetWe will email the drawing for this item Talk to a technical expertMaterial selection and duty review Send a drawingWe fabricate to your isometric or sketch Request a custom sizeNon-standard bores, lengths and drilling

Not sure which spec fits your process?

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

Talk to an engineer