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FTF of valves

made of metal for installation in pipelines with flanges

The overall lengths of valves are defined as basic series in EN 558-1. In this standard, construction lengths valid throughout Europe were introduced, whereby as a rule the previously nationally valid construction lengths were adopted.For example, the flange-to-flange lengths F4 and F5 (DIN 3202) were adopted as basic series 14 ("F4") and 15 ("F5").

DN

Basic series 14

Basic series 15

10

115

-

15

115

-

20

120

-

25

125

120

32

130

140

40

140

240

50

150

250

65

170

270

80

180

280

100

190

300

125

200

325

150

210

350

200

230

400

250

250

450

300

270

500

350

290

550

400

310

600

450

330

650

500

350

700

600

390

800

700

430

900

750

-

-

800

470

1000

900

510

1100

1000

550

1200

1200

630

-

1400

710

-

1600

790

-

1800

870

-

2000

950

-

 

These standards can be obtained from www.beuth.de.


Sitemap "Definitions"

Diameter nominal
The nominal diameter used to be an integer numerical number for the inside diameter of a pipeline or a fitting in mm.
Nominal Pressure
Alphanumeric designation for reference purposes, referring to a combination of mechanical and dimensional properties of a component of a piping system. It comprises the letters PN followed by a dimensionless number
flange to flange length (FTF) acc. EN 558
flange to flange length (FTF) acc. EN 558
Fluidgruppe nach DGRL
Artikel 13 der Druckgeräterichtlinie teilt Fluide in 2 verschiedene Gruppen ein: - Fluidgruppe 1: gefährliche Fluide - Fluidgruppe 2: nicht in Gruppe 1 fallende Fluide
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