SPECIFICATION · #1001

EN 1092-1 PN40 DN20 Blind

EN 1092-1 · EN 1092-1:2018 · DN20

EN 1092-1PN40BlindUnits mm / kg

Dimension drawing

Schematic, drawn from the table values
EN 1092-1 · DN20 · PN40 · Blind FlangeEN 1092-1 · DN20 · PN40 · Blind Flange O.D. D 105.0 Bolt circle K 75.0 4ר14.0 Raised face Ø 58.0 Thickness C 18.0 RF height f 2.0 Both views share one scale (1:1.5); schematic only Unit: mm

D outside diameter · K bolt circle · nרd bolt holes · C thickness · D2 raised face · f raised-face height · A hub diameter · H length

Dimensions

EN 1092-1 · PN40
DOutside diameter105mm
CFlange thickness / blind thickness18mm
D2Raised face diameter58mm
fRaised face height2mm
KBolt circle diameter75mm
nNumber of bolt holes4pcs
dBolt hole diameter14mm
Approximate weight1.1kg
Data edition EN 1092-1:2018Verified 2026-11-04

Pressure–temperature ratings

Group 3E0
RT °C40.0 bar100 °C37.1 bar150 °C35.2 bar200 °C33.3 bar250 °C30.4 bar300 °C27.6 bar350 °C25.7 bar400 °C23.8 bar450 °C13.1 bar

Current material group: Group 3E0

Source: Tables G.2 to G.13 (pp. 113–124) — group 3E0 / P245GH (1.0352), vR ≤ 50 mm, all PN

Values are PS in bar gauge for material group 3E0, thickness band vR ≤ 50 mm, taken from the 3E0 row of each PN table. Decimal commas as printed. The 450 °C row is creep-based in the standard (italic) and is the last rated temperature for this group. A separate row for the 50 < vR ≤ 150 mm band is printed in each table and is slightly lower at some temperatures.

Material & standard

EN 1092-1
Standard
EN 1092-1 (EN 1092-1:2018)
Base material
P250GH / S235JR
Material options
P250GHP265GHS235JRS355J21.4301 / 1.44041.4571
Region
Europe, UK, Middle East, Africa, CIS projects

EN 1092-1 uses PN (nominal pressure) ratings in bar: PN6, PN10, PN16, PN25 and PN40. PN16 means 16 bar nominal at ambient temperature for EN material group 1, derating with temperature per the EN 1092-1 tables. EN PN ratings are not equivalent to ASME classes in dimensions, even where the pressure looks similar.

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Data note

Specification #1001 · last updated 2026-11-05 08:05

Use limits

This library is a factual compilation of published standards tables. It does not replace the standard text. Verify against the edition in your purchase specification before quoting, manufacturing or inspecting a critical part.