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Instrumentation Fittings Ferrules, Nuts and Tube Inserts

Tube Insert

Product code FGI

Insert fitted inside the end of soft or thin-walled tubing; prevents the tube from collapsing while the nut is tightened. Selected by tube OD and ID.

Material
AISI 316 / 316L
Connection system
Double ferrule
Tube sizes
Metric 6–12 mm · Inch 3/16″–1″
  • Material and standard are confirmed in writing in the quote
  • Reply with stock status and lead time

Description

About the product

This product is supplied for tube ODs of metric 6–12 mm and inch 3/16″–1″; the code and dimensions of each size are given in the dimension table below.

How to read the product code

In the code the tube OD is given in sixteenths of an inch (08 = 1/2″), metric tubes in mm with the letter M (6M = 6 mm); thread letter N: NPT, R: BSPT, B: BSPP, S: SAE (UN).

Dimensions are for reference. When requesting a quote, simply state the product code or the tube OD (and the thread size for threaded connections).

Dimensions

Size chart

Sizes are in mm and weights in kg/piece. Just enter the size you need in the quote form.

Metric

CodeA
Tube OD, mm
A1
Tube ID, mm
D
Insert bore, mm
FGI-6M-4M642.8
FGI-8M-6M864.4
FGI-10M-8M1086.4
FGI-12M-8M1286.4
FGI-12M-10M12108.3

Inch

CodeA
Tube OD, inch
A1
Tube ID, inch
D
Insert bore, mm
FGI-03-023/16″1/8″2.3
FGI-04-021/4″1/8″2.3
FGI-04-0.171/4″0.17″2.7
FGI-04-031/4″3/16″3.1
FGI-05-025/16″1/8″2.3
FGI-05-035/16″3/16″3
FGI-05-045/16″1/4″4.65
FGI-06-033/8″3/16″3.1
FGI-06-043/8″1/4″4.65
FGI-08-041/2″1/4″4.65
FGI-08-061/2″3/8″7.8
FGI-10-065/8″3/8″7.8
FGI-10-085/8″1/2″11.1
FGI-12-083/4″1/2″11.1
FGI-12-103/4″5/8″14.2
FGI-16-121″3/4″17.5

Dimensions in mm (except where inch is stated). D is the minimum bore. Dimensions are for reference.

Quote

Request a quote for Tube Insert

Send the size, material grade and quantity, and we will reply with stock status, price and lead time.

Details that speed up your quote

  • Product code or name, size (DN / inch)
  • Material grade: 304, 304L, 316 or 316L
  • Standard / pressure class (PN, LB, SCH)
  • Quantity and requested delivery location

Fields marked * are required.

At least 10 digits including area code, e.g., +90 532 123 45 67

Technical drawing, photo or PDF (optional)

JPG, PNG, WEBP, HEIC, PDF, DWG, DXF · up to 5 files · 10 MB per file, 25 MB total

Ferrules, Nuts and Tube Inserts

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