pneumatically operated DN 15 - 50 mm (1/2" - 2") plastic piston actuator

• 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

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
Additional information:		Mounting Instructions
		Ordering Key
		Request for CAD-Data