|
TYPE 482
pneumatically operated
DN 15 - 50 mm (1/2" - 2")
plastic piston actuator
Attributes
- Plastic piston actuator directly mounted with the valve body
- Compact design, the outside diameter of the actuator is the same size as the bonnet flange
- Actuator high resistance to heat transfer
- Smooth exterior design ideal for wash downs
- Control air connection 90° to flow direction
- Encapsulated diaphragm
Special Features Actuator Type 482
Circumferential sealing between process diaphragm and valve body
- Reduction of dirt and particle accumulation
- Consistent closing pressure
- Higher life time and steadiness of the diaphragm
Piston actuator with higher durability
- Actuator with permanent lubrication for higher durability
- Reduction of friction values
- Higher operating time
- Maintenance-free
Flexible diaphragm suspension and encapsulated diaphragm
- Flexible diaphragm suspension avoids selective overcharge
- Encapsulated diaphragm reduces the flow incline of the elastomer and the risk of a leakage by decrease of the diaphragm
General
- Eliminated water hammer
- Depending on the diaphragm material for all neutral and aggressive, gaseous and liquid media
- The flow can be in either direction
- Hermetic sealing
- The valve is unaffected by contaminated media
- Cavity free body
- Without any corrosion
Optional
- Available with a wide range of control equipment and accessories, also for retrofitting
- Control connection in flow direction
Features
|
Control function : |
Pneumatically operated
Normally closed: Cf. 1 and Cf. 4
Normally open: Cf. 2 and Cf. 5
Double acting: Cf. 3 and Cf. 6 |
|
Direction
Control connection: |
At Cf. 4, 5 and 6 in flow direction, standard
At Cf. 1, 2 and 3 90° to flow direction |
|
Max. working pressure: |
Unidirectional (delta p = 100%)
EPDM, FPM, NBR diaphragm 10 bar
PTFE/EPDM diaphragm 8 bar
Higher working pressure may be achieved with different actuator.
|
|
Max. working temperature |
150°C, the max. working temperature depends on the working
pressure and the valve body material |
|
Control pressure: |
Cf. 1 and 4 4,5 - 7 bar
Cf. 2, 3, 5 and 6 4 - 5 bar |
|
Diaphragm material
and size: |
EPDM, PTFE/EPDM, NBR or FPM
MA 25, 40, 50 |
|
Valve body material: |
PVC-U
PP
PVDF
PVC-C |
|
End connection: |
Threaded socket, insert DIN welding socket
Plain socket DIN
Flange EN1092/ PN10/ form B, length EN 558-1; series 1
Flange ANSU Class 125/150 RF, length EN 558-1; series 1 | |
