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welding neck flange PN 25FL.25

Stainless steel welding neck flanges PN 25

Stainless steel welding neck flanges PN 25 Product specification

welding neck flange PN 25 DIN 2634/C - EN 1092-1/B1

Welding neck flange PN 25 acc. to DIN 2634 and EN 1092-1 Type 11

(Dimensions for DN < 200 see PN 40)

Seal surface with sealing face

Nominal size	Sealing face height [f]*
DN 200 - 250	3,0 mm
DN 300 - 500	4,0 mm
DN 500 - 1000	5,0 mm

see Fig. 3/4

Machining	Ra (µm)	Rz (µm)
rotated	min. 3,25 / max. 12,5	min. 12,5/ max. 50

Comparison of the designations acc. to the old DIN standard and the new EN 1092-1:

DIN 2526	EN 1092-1
Form C	Form B1

Comparison of dimensions DIN 2634 and EN 1092-1

All dimensions identical up to DN 400.

For DN 500 and higher, the dimensions [b] and for DN 700 and higher, the dimensions [h] deviate.

(Please specify if necessary! Otherwise we reserve the right to deliver the less expensive or the available

variant.)

Dimension [b] (sheet thickness)

DN	DIN	EN
500	44	48
600	46	48
700	46	50
800	50	53
900	54	57
1000	58	63

Dimensions in mm

Dimension [h] (mounting height)

DN	DIN	EN
700	125	129
800	135	138
900	145	148
1000	155	160

Dimensions in mm

DIN 2634/C - EN 1092-1/B1

<p><b>Welding neck flange PN 25 acc. to DIN 2634 and EN 1092-1 Type 11</b></p><p>(Dimensions for DN < 200 see PN 40)</p><br><br><p><b>Seal surface with sealing face</b></p><table class="techDescTable"><thead><tr><th><b>Nominal size</b></th><th><b>Sealing face height [f]*</b></th></tr> </thead><tbody><tr class="Even"><td>DN 200 - 250</td><td>3,0 mm</td></tr><tr class="UnEven"><td>DN 300 - 500</td><td>4,0 mm</td></tr><tr class="Even"><td>DN 500 - 1000</td><td>5,0 mm</td></tr></tbody></table><p><span class="tDescSmall">see Fig. 3/4</span></p><br><br><table class="techDescTable"><thead><tr><th>Machining</th><th><b> Ra (µm) </b></th><th><b> Rz (µm)</b></th></tr> </thead><tbody><tr class="Even"><td>rotated</td><td>min. 3,25 / max. 12,5</td><td>min. 12,5/ max. 50</td></tr></tbody></table><br><br><p>Comparison of the designations acc. to the old DIN standard and the new EN 1092-1:</p><table class="techDescTable"><thead><tr><th><b> DIN 2526 </b></th><th><b> EN 1092-1</b></th></tr> </thead><tbody><tr class="Even"><td>Form C</td><td>Form B1</td></tr></tbody></table><br><hr><br><br><p><b>Comparison of dimensions DIN 2634 and EN 1092-1</b></p><br><p>All dimensions identical up to DN 400.</p><p>For DN 500 and higher, the dimensions [b] and for DN 700 and higher, the dimensions [h] deviate.</p><p><span class="tDescSmall">(Please specify if necessary! Otherwise we reserve the right to deliver the less expensive or the available</span></p><p><span class="tDescSmall">variant.)</span></p><br><p>Dimension [b] (sheet thickness)</p><table class="techDescTable"><thead><tr><th><b> DN </b></th><th><b> DIN </b></th><th><b> EN </b></th></tr> </thead><tbody><tr class="Even"><td>500</td><td>44</td><td>48</td></tr><tr class="UnEven"><td>600</td><td>46</td><td>48</td></tr><tr class="Even"><td>700</td><td>46</td><td>50</td></tr><tr class="UnEven"><td>800</td><td>50</td><td>53</td></tr><tr class="Even"><td>900</td><td>54</td><td>57</td></tr><tr class="UnEven"><td>1000</td><td>58</td><td>63</td></tr></tbody></table><p><span class="tDescSmall">Dimensions in mm</span></p><br><p>Dimension [h] (mounting height)</p><table class="techDescTable"><thead><tr><th><b> DN </b></th><th><b> DIN </b></th><th><b> EN </b></th></tr> </thead><tbody><tr class="Even"><td>700</td><td>125</td><td>129</td></tr><tr class="UnEven"><td>800</td><td>135</td><td>138</td></tr><tr class="Even"><td>900</td><td>145</td><td>148</td></tr><tr class="UnEven"><td>1000</td><td>155</td><td>160</td></tr></tbody></table><p><span class="tDescSmall">Dimensions in mm</span></p>

extended product description

material

measures and values

stocks and pricing

downloads

CAD

dimension	File Download (3D-PDF)	File Download (STEP)
200	heco_FL-219-025-4.pdf	heco_FL-219-025-4.step
250	heco_FL-273-025-4.pdf	heco_FL-273-025-4.step
300	heco_FL-323-025-4.pdf	heco_FL-323-025-4.step
350	heco_FL-355-025-4.pdf	heco_FL-355-025-4.step
400	heco_FL-406-025-4.pdf	heco_FL-406-025-4.step
450	heco_FL-457-025-4.pdf	heco_FL-457-025-4.step
500	heco_FL-508-025-4.pdf	heco_FL-508-025-4.step
600	heco_FL-610-025-4.pdf	heco_FL-610-025-4.step
800	heco_FL-813-025-4.pdf	heco_FL-813-025-4.step

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...

welding neck flanges

PN 25

Stainless steel welding neck flanges PN 25

welding neck flange PN 25FL.25

Product specification

welding neck flange PN 25

DIN 2634/C - EN 1092-1/B1

Welding neck flange PN 25 acc. to DIN 2634 and EN 1092-1 Type 11

(Dimensions for DN < 200 see PN 40)

Seal surface with sealing face

Nominal size	Sealing face height [f]*
DN 200 - 250	3,0 mm
DN 300 - 500	4,0 mm
DN 500 - 1000	5,0 mm

see Fig. 3/4

Machining	Ra (µm)	Rz (µm)
rotated	min. 3,25 / max. 12,5	min. 12,5/ max. 50

Comparison of the designations acc. to the old DIN standard and the new EN 1092-1:

DIN 2526	EN 1092-1
Form C	Form B1

Comparison of dimensions DIN 2634 and EN 1092-1

All dimensions identical up to DN 400.

For DN 500 and higher, the dimensions [b] and for DN 700 and higher, the dimensions [h] deviate.

(Please specify if necessary! Otherwise we reserve the right to deliver the less expensive or the available

variant.)

Dimension [b] (sheet thickness)

DN	DIN	EN
500	44	48
600	46	48
700	46	50
800	50	53
900	54	57
1000	58	63

Dimensions in mm

Dimension [h] (mounting height)

DN	DIN	EN
700	125	129
800	135	138
900	145	148
1000	155	160

Dimensions in mm

measures and values

stocks and pricing

downloads

CAD

dimension	File Download (3D-PDF)	File Download (STEP)
200	heco_FL-219-025-4.pdf	heco_FL-219-025-4.step
250	heco_FL-273-025-4.pdf	heco_FL-273-025-4.step
300	heco_FL-323-025-4.pdf	heco_FL-323-025-4.step
350	heco_FL-355-025-4.pdf	heco_FL-355-025-4.step
400	heco_FL-406-025-4.pdf	heco_FL-406-025-4.step
450	heco_FL-457-025-4.pdf	heco_FL-457-025-4.step
500	heco_FL-508-025-4.pdf	heco_FL-508-025-4.step
600	heco_FL-610-025-4.pdf	heco_FL-610-025-4.step
800	heco_FL-813-025-4.pdf	heco_FL-813-025-4.step

Ask our experts