Burkert 2031 Manuel Utilisateur page 8

3.4 VALVE BODY SPECIFICATIONS
- Material:
•
Forged stainless steel (DIN 1.4435 BN2 / 316L according to ASME-BPE
1997).
•
Cast stainless steel (316L).
•
Rolled steel (316L).
- Types of connections:
•
butt-weld ends which conform to ISO 4200, SMS 3008, DIN 11850,
BS 4825-1 and JIS standards
• Clamp ends which conform to BS 4825-3, ISO 2852, DIN 32676,
SMS 3017 standards
•
dairy pipe unions which conform to DIN 11851 or standards
•
other connections on request.
- Nominal diameter (DN): DN8 to DN100
- Temperature of the conveyed medium: depends on the diaphragm material.
- Operating pressure:
•
Static pressure: the valve being closed, the pressure is applied on one side
of the diaphragm
•
Dynamic pressure: the valve being open, the pressure is applied in the
whole valve body; the valve must close itself and be tight.
Type of pressure
Material of the diaphragm
DN Actuator size
8 C
D
15
E
E
20
F
E
25
F
G
40
H
G
50
H
K
80
L
100 L
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SPECIFICATIONS
Static
Elastomer PTFE / EPDM
10 10
8
10 10
10
10 10
10
10 10
10 10
10 10
10
10 10
5 4,5
10 10
8
8
Dynamic
Elastomer
10
- 7
10
- 10
10
- 5
10
6,5
10
- 5
7,5
2,5
6
4 3,5
2031-2032-2033
PTFE / EPDM
10
-
10
-
10
-
7
5,5
10
-
7
2
4,5
1,5