Type
Filter
656: Diaphragm valve, pneumatically operated
DN
Filter
25: DN 25
40: DN 40
50: DN 50
65: DN 65
80: DN 80
100: DN 100
125: DN 125
150: DN 150
200: DN 200
Body configuration
Filter
D: 2/2-way body
Connection type
Filter
4: Flanges EN 1092 / PN10 / form B, Face to face EN 558, series 1, ISO 5752, basic series 1
8: Flange EN 1092, PN 16, form B, face-to-face dimension FTF EN 558 series 1, ISO 5752, basic series 1
39: Flanges ANSI Class 125/150 RF, Face to face EN 558, series 1, ISO 5752, basic series 1
52: Flange EN 1092, PN 10, form A, face-to-face dimension FTF EN 558 series 7, ISO 5752, basic series 7, face-to-face dimension only for body configuration D
53: Flanges EN 1092 / PN16 / form A, Face to face EN 558, series 7, ISO 5752, basic series 7
58: Flanges ANSI Class 125/150 FF, Face to face EN 558, series 7, ISO 5752, basic series 7
Valve body material
Filter
8: EN-GJL-250 (GG-25)
16: EN-GJS-500-7 (GGG-50), hard rubber lined
82: EN-GJS-400-18-LT (GGG-40.3), soft rubber lined
83: EN-GJS-400-18-LT (GGG-40.3), hard rubber lined
88: EN-GJS-400-18-LT (GGG-40.3), Butyl lined
92: EN-GJS-500-7 (GGG-50), soft rubber lined
98: EN-GJS-500-7 (GGG-50), Butyl lined
Diaphragm material
Filter
2: NBR
4: FKM
6: IIR
8: CR
14: EPDM
15: NR
Control function
Filter
1: Normally closed (NC)
2: Normally open (NO)
3: Double acting (DA)
Actuator version
Filter
2R2: Actuator size 2R2, for DN 25 and 40
2RD: Actuator size 2RD, for DN 25 and 40
2RF: Actuator size 2RF, for DN 25 and 40
3R1: Actuator size 3R1, for DN 50 and 65
3RD: Actuator size 3RD, for DN 50 and 65
3RF: Actuator size 3RF, for DN 50 and 65
4R1: Actuator size 4R1, for DN 80 and 100
4RD: Actuator size 4RD, for DN 80 and 100
4RF: Actuator size 4RF, for DN 80 and 100
5R2: Actuator size 5R2, for DN 125 and 150
5RD: Actuator size 5RD, for DN 125 and 150
5RF: Actuator size 5RF, for DN 125 and 150
6R2: Actuator size 6R2, for DN 200 and 250
6R3: Actuator size 6R3, for DN 200 and 250
6RD: Actuator size 6RD, for DN 200 and 250
6RF: Actuator size 6RF, for DN 200 and 250
Execution type
Filter
OHNE
Mounting type
Filter
OHNE
N0: With NAMUR mounting bracket
NH: With NAMUR mounting bracket and handwheel