Operate Your Diaphragm Valve as You Please
Actuators and HandlesAseptic Diaphragm Valve -
Actuators

Actuators

All our standard actuators and handles have a stainless steel bonnet/distance piece allowing for high operating temperature and steam sterilisation of the valve.

The actuators are available in either a manual or a pneumatic version. For both types there is a number of options enabling you to choose the actuator fulfilling your requirements.

This PD sheet shows our standard and optional ranges of actuators. More configurations and designs are available upon request.

Manual actuators

The 601, 612 and 673 actuators are suitable for most applications, but where extra cleanability is required, for external surfaces, we recommend the 653 (or 654 optional) actuators.
For large valve bodies actuator 672 is available.

Technical data - Manual actuators

Max. operating pressure:

 
EPDM diaphragm: 10 bar
PTFE diaphragm 6 bar
Max. sterilisation temperature 150°C(depending onapplication)
 
Type 601 612 673 653 672 654
 
Std/opt. Standard Standard Standard Standard Option Option
Seat size 8 10 25, 40, 50 10, 25, 40, 50 80, 100 10, 25, 40, 50
DN size 4 - 15 10 - 20 15 - 50 10 - 50 65 - 100 10 - 50
Stainless steel distance piece X X X X X X
Plastic hand wheel X X X X X  
Stainless steel hand wheel           X
Seal adjuster1) X X X X   X
Stroke limiter2)       X   X
Proximity switch3)       X O X
Non rising hand wheel       X X X
Pocket free hand wheel4)       X   X
Shrouded bonnet5)       O   O
1)Variable adjustment and setting of sealing force which prevent over-closure and prolong diaphragm lifetime.
2)Offers variable adjustment of opening stroke and thus facilitating flow regulation.
3)Electronic position indicator.
4)Smooth hand wheel without entrapment area.
5)A shroud covering the body fasteners for increased external hygiene. (Only for two-way valves.)
X = standard for actuator
O = option for actuator
 

Pneumatic actuators

Pneumatically operated: Normally Open, Normally Closed and Double Acting.
Our 605, 625 and 687 actuators are suitable for most applications, but where extra cleanability is required, Alfa Laval recommends the 650 actuator for cleaning of external surfaces.

Type   605 625 687 650
   
Std/opt   Standard Standard Standard Standard
Seat size   8 10 25, 40, 50, 80, 100 8, 10, 25, 40, 50
DN size   4 - 15 10 - 20 15 - 100 4 - 50
Stainless steel   X X X X
distance piece  
Plastic bonnet   X X X  
Leakage detection   X X X X
Stainless steel          
bonnet         X
Working pressure1) EPDM 0 - 8 0 - 6 Seat 25-50 10 0 - 10
(bar)       Seat 80 8  
        Seat 100 6  
  PTFE/EPDM 0 - 6 0 - 6 Seat 25-50 6 0 - 6
        Seat 80 5  
        Seat 100 4  
Control pressure NC 4 - 7 5 - 7 5 - 6 4.5 - 6
(bar) NO, DA 3 - 4 4 - 6 3 - 6 3 - 4
1)Applied upstream
Dimensions
Manual valves
  Seat size A Opened A closed Ø B Weight
  (Ss)        
601 8 62 58 32 0.09
612 10 83 77 60 0.23
673 25 116 102 90 0.63
  40 133 119 114 1.22
  50 144 136 140 2.03
672 80 263 263 214 5.70
  100 311 311 214 8.57
653/654 10 89 89 63 -
  25 108 108 92 -
  40 133 133 114 -
  50 155 155 132 -



 

Pneumatic valves
  Seat size (Ss) A NC A NO, DA B G Air Connection Weight (kg)
605 8 92.5 92.5 68 1/4” 0.3
625 10 102.5 102.5 68 1/4” 0.4
687 25 143 109 128   2.1
  40 180 138 158   3.9
  50 215 161 213 1/4” 6.6
  80 311 256 259   14.8
  100 305 250 259   16.2
650 8 77 77 61   0.4
  10 101 101 61   0.9
  25 130 130 92 1/4” 2.0
  40 168 168 114   3.8
  50 216 216 132   7.6

Ordering

The valves are sold as complete valves and the item numbers for the standard program are included in the ordering leaflets. For other configurations please specify:

  • - Port size
  • - Seat size
  • - Body configuration
  • - Tube standard
  • - Connection
  • - Surface finish
  • - Stainless steel quality
  • - Diaphragm material
  • - Actuator type
  • - Additional options

For our actuators we have a number of top units available. Please see separate PD sheet or contact customer support.