Spacers, Bellows, Strainers & Accessories
Spacers, Bellows, Strainers & Accessories
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Full technical data and dimensions
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PTFE Lined Spacer
Lined spacer ring, NB 1/2" to 16", 30–90 mm
Short lined ring for taking up small gaps between flanges — NB 1/2" to 16" in lengths from 30 mm to 90 mm, available in PTFE, PFA and FEP.
| Product type | Lined spacer |
|---|---|
| Body / steel grade | IS 2062 plate / ASTM A 105 |
| Lining material | PTFE / PFA / FEP |
| Liner standard | ASTM D 1457 / ASTM D 4894-19 (PTFE), ASTM D 3307 (PFA), ASTM D 2116 (FEP) |
| Lining options | Virgin or anti-static (conductive black) PTFE to ASTM D 4894 & D 4895, PFA to ASTM D 3307, FEP to ASTM D 2116 |
| Flange standard | ASME/ANSI B16.5 |
| Flange class | Class 150 standard; Class 300 on request |
| Size range | NB 1/2" to NB 16" |
Product overview
What it does, and where it fits.
A lined spacer takes up the small residual gap left when a valve, filter or instrument is removed from a flanged run, or trims a line to its as-built dimension. It is short — 30 mm to 90 mm — and lined so the make-up piece does not become the corrosion point of the line.
The body is IS 2062 plate or ASTM A 105, drilled to ASME/ANSI B16.5 Class 150, with PTFE, PFA or FEP marked applicable across the entire NB 1/2" to 16" range. Spacers are not drilled with vent holes.
Features
Built into every unit.
- Face to face 30 mm to 90 mm — the shortest lined make-up piece in the range
- PTFE, PFA or FEP across the full NB 1/2" to 16" range
- IS 2062 plate or ASTM A 105 body to B16.5 Class 150
- No vent hole required or fitted
- Stainless steel body and higher diameters on request
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
- Filling the gap left when a valve or filter is removed
- Trimming a flanged run to its as-built dimension
- Compensating for a spectacle blind or gasket thickness
- Temporary make-up during commissioning
Industries served
- Chemical processing
- Pharmaceutical
- Petrochemical
- Oil & gas
- Power generation
- Pulp & paper
- Mining & metallurgy
- Agrochemicals & dyes
Technical data
Specification for PTFE Lined Spacer.
Figures below are for this product only — every item in the range carries its own dimension table.
| Product type | Lined spacer |
|---|---|
| Body / steel grade | IS 2062 plate / ASTM A 105 |
| Lining material | PTFE / PFA / FEP |
| Liner standard | ASTM D 1457 / ASTM D 4894-19 (PTFE), ASTM D 3307 (PFA), ASTM D 2116 (FEP) |
| Lining options | Virgin or anti-static (conductive black) PTFE to ASTM D 4894 & D 4895, PFA to ASTM D 3307, FEP to ASTM D 2116 |
| Flange standard | ASME/ANSI B16.5 |
| Flange class | Class 150 standard; Class 300 on request |
| Size range | NB 1/2" to NB 16" |
| Temperature range | Continuous service to 260 °C (PTFE melting point 327 °C, PFA 306 °C, FEP 260 °C) |
| Pressure rating | ASME/ANSI B16.5 Class 150 flanges as standard; Class 300 available on request |
| Manufacturing standard | ASTM F 1545 |
| Spark testing | Every lined component spark tested at 5000 × E volts (E = liner thickness in mm), to a maximum of 15 000 V |
| Hydro testing | Hydrostatic or pneumatic test according to the lining technique; hydrostatic test on components with vent holes |
| Inspection | Dimensional and visual examination of liner and steel parts — weld aspect, overall dimensions, collar size, liner thickness, surface flaws and paint thickness |
| Vent holes | None — the catalogue excludes spacers from vent hole drilling |
| External protection | Zinc epoxy primer, minimum 60 μm dry film, over steel sand-blasted to SA 2.5 |
| Certification | EN 10204 3.1 mill certificates and FDA certification for the fluoropolymer available on request |
| Face to face | 30 mm to 90 mm, size dependent |
| Size | Length min (±2) | Length max (±2) | PTFE | PFA | FEP |
|---|---|---|---|---|---|
| 0.5" | 30 | 60 | ✓ | ✓ | ✓ |
| 0.75" | 30 | 60 | ✓ | ✓ | ✓ |
| 1" | 30 | 60 | ✓ | ✓ | ✓ |
| 1.5" | 30 | 60 | ✓ | ✓ | ✓ |
| 2" | 30 | 60 | ✓ | ✓ | ✓ |
| 2.5" | 30 | 70 | ✓ | ✓ | ✓ |
| 3" | 30 | 70 | ✓ | ✓ | ✓ |
| 4" | 30 | 80 | ✓ | ✓ | ✓ |
| 6" | 30 | 80 | ✓ | ✓ | ✓ |
| 8" | 30 | 80 | ✓ | ✓ | ✓ |
| 10" | 30 | 80 | ✓ | ✓ | ✓ |
| 12" | 30 | 90 | ✓ | ✓ | ✓ |
| 14" | 30 | 90 | ✓ | ✓ | ✓ |
| 16" | 30 | 90 | ✓ | ✓ | ✓ |
All dimensions in mm. Minimum length is 30 mm in every size; maximum rises with bore.
Available on request
- Stainless steel body
- Higher diameters on request
FAQ
Questions we are asked about this item.
Spacer 30–90 mm, distance piece 60–200 mm, spool 100–3000 mm. Pick the one whose range covers the gap you have to fill.
Yes — see the PTFE solid and tapered spacer, which is machined from solid PTFE rather than lined onto steel and covers 3 mm to 300 mm.
Related products
Commonly specified alongside PTFE Lined Spacer.
Lined Pipes & Spools
Lined Fittings
Lined Fittings
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.
Talk to an engineer