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Diaphragm valve

Technical Description

diaphragm valveDiaphragm Gate Valve rubber lined, with a smooth through pass. This construction combinates all positive characteristics of diaphragm and gate valves. The cavity reduced design, the current optimized through pass and a lot of different variable body linings are suitable for fibrous and abrasive media. The closing element is made of soft rubber with a vulcanized steel core. The complete body is hard rubber lined and separated from the frame cover by a softly Diaphragm. Other materials for diaphragm and body linings are alternatively available.

Area of applications:

For non aggressive liquids and gases. DIN 2401 determines the admissible operating pressure, in relation to the temperature.

Variants:

  • rubber lined/ enamel lined/ EKB lined
  • without lining
  • resilient seated
  • metal seated
  • ceramic lined

Diaphragm valve A20a / A20w

Nennweitenbereich DN 15 - DN 350, PN 10, Ausführung stopfbuchslos, mit nicht steigender Spindel
Flansche nach DIN 2501 PN 10 - weitere auf Anfrage
Baulänge nach ISO 5752 EN558-1 Reihe F1 / DIN 3202 Reihe F1.
Technische Lieferbedingungen und Prüfungen nach DIN 3354, Teil 1, und DIN 3230 AG, BA, BN

Merkmale

  • Freier glatter Durchgang, geringer Druckverlust
  • nach außen vollkommen dicht durch Membranahdichtung der Spindel
  • Maximaler Korrosionsschutz durch komplette Schutzgummierung aller medienberührten Flächen
  • Keine Unterwanderung durch das angreifende Medium

 

Materials Standard Alternative
Body EN-GJS-400-15 (GGG 40) EN-GJS-400-18 (GGG 40.3)
Lining A20a hard rubber A20w soft rubber
Cover EN-GJS-400-15 (GGG 40) EN-GJS-400-18 (GGG 40.3)
Diaphragm reinforced IIR  
Spindle ≤ DN32 = Ms
≥ DN40 = 9SMn28K
 
Handwheel St  
Corrosion protection zinc-phosphate primer  

Betätigung

  • Typ A22a mit Elektro-Antrieb
  • Typ A24a mit pneum. Antrieb, doppelt wirkend
  • Typ A25a mit pneum. Antrieb, Federkraft öffnend
  • Typ A26a mit pneum. Antrieb, Federkraft schließend
  • Typ A29a mit Handrad

Technische Daten

DN15 - DN350 working pressure (bar) p ≤ 10 bar

Attention: for DN250 p ≥ 6 bar, DN 300 p ≥ 4 bar und DN 350 p ≥ 1,5 bar - Contact manufacturer

Face to face dimensions acc. to ISO 5752 EN558-1 series F1 / DIN3202 series F1

Flanges acc. to  DIN EN 1092-2 / DIN 2501 PN 10

Flange facing: DIN EN 1092-1-Form B1 - Surface with smooth finish

 

Dimensions (mm)

diaphragm valve dimensions

DN 15 20 25 32 40 50 65 80 100 125 150 200 250 300 350
L 130 150 160 180 200 230 290 310 350 400 480 600 730 850 980
Ø D 95 105 115 140 150 165 185 200 220 250 285 343 395 445 505
Ø K 65 75 85 100 110 125 145 160 180 210 240 295 350 400 460
n 4 4 4 4 4 4 4 8 8 8 8 8 12 12 12
Ød2 14 14 14 18 18 18 18 18 18 18 23 23 23 23 23
Ød4 45 58 68 78 88 102 122 138 158 188 209 268 320 370 430
b 14 15 16 17,5 17,5 19 20 20 21 22 22 29 32 30 33
ØD 100 100 100 100 150 175 225 225 300 300 350 400 500 640 640
H 91 105 105 111 167 181 256 263 330 333 381 499 564 700 817

 

Weight approx. (kg)

DN 15 20 25 32 40 50 65 80 100 125 150 200 250 300 350
G 2,5 3,0 3,5 6,5 7,5 10,5 18 19 28 39 51,5 108 170 266 384

 

Diaphragms

DN 15 - DN 32

diaphragm DM15 32

DN a b c d e f l n
15 51 51 38 38 17 4,5 5 4
20 69 63 52 46 21 5 7 4
25 79 69 62 52 25 5 7 4
32 94 80 72 58 29 5 10 4
 

DN 40 - DN 80

diaphragm DM40 80

DN a b c d e f l n
40 106 106 84 70 51,5 6,5 11 4
50 124 124 100 80 64 7 12 4
65 158 158 113 113 104 8 12 4
80 158 158 113 113 110 8 12 4
 

DN 100 - DN 200

diaphragm DM100 200

DN a c e f l n
100 220 194 136 10 12 8
125 220 194 141 10 12 8
150 266 240 172 10 12 12
200 350 310 237 13 16 12
 

DN 250 - DN 350

diaphragm DM250 350

DN a c e f l n
250 400 360 289 15 16 12
300 470 430 360 16 17 12
350 550 510 428 17 17 16
 

Weight approx. (kg)

DN 15 20 25 32 40 50 65 80 100 125 150 200 250 300 350
G 0,03 0,05 0,08 0,13 0,4 0,5 1,10 1,40 2,10 3,00 4,00 10,00 21,00 33,00 35,00

 

 

Technical details subject to change without notice — Tolerances acc. to DIN/ANSI Standards, other dimensions approximate

 

 

 

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