When Looking for Aseptic Solutions
Complete RangeAseptic Diaphragm Valves -
 
Two examples from Complete Range

Alfa Laval offers an extensive range of aseptic diaphragm valves for ultra-hygienic processes. The modular design of the valves ensures a wide flexibility with standardised high quality components.

Working principle

Our Aseptic Diaphragm Valve system is based on the well-proven weir type diaphragm valve together with a wide range of diaphragms and actuators with associated control and indication units.

Standard Design

With the modular design of the Aseptic Diaphragm Valve nearly all possible configurations are feasible. The valve is composed of the following parts:

  • - Actuator - either manual or pneumatic
  • - Diaphragm - available in a variety of soft and hard elastomers.
  • - Valve body - the standard type is a two-way, but other configurations are available. The body can be supplied according to a variety of tube connections and in several surface finishes.

You can combine the 3 parts in almost any combination. Alfa Laval offers a standard range with the most common combinations and further combinations are available as options.


 

 
Manual actuators   Pneumatic actuators
   
  Diaphragms  
T-valve body Two-way valve bodies Tank valve body

Standard program

Our standard valve configurations are selected in order to simplify selection and ordering. The standard Aseptic Diaphragm Valve range is suitable for most applications in the pharmaceutical industry.
Apart from the standard valve configuration, Alfa Laval also offers a large variety of options where you can compose your own valve from our different options.

Below is an overview of our range:

Seat DN Inch Standard/Option
8 4   Option
8 6   Option
8 8   Standard
8 10   Standard
8 15   Standard
10 10 3/8” Standard
10 15 ½” Standard
10 20 3/4” Standard
25 15 ½” Standard
25 20 3/4” Standard
25 25 1” Standard
40 32   Standard
40 40 1½” Standard
50 50 2” Standard
80 65   Option
80 80   Option
100 100   Option
  Standard Option
Body    
Configuration 2-way Tank bottom & T-valves
Pipe standard ISO, DIN 2nd Series, SMS, DIN other series,
  ASME BPE and JIS BS OD and JIS
Connections Welding ends, clamps Short clamp (ASME), aseptic unions,
    flanges
Surface finish Ra ≤ 0.8 µm and Ra ≤6.3, 0.6, 0.25 µm
  Ra ≤0.4 µm optional electropolished
    for all Ra values
Stainless steel Forged, Forged and cast with
specifications investment cast low ferrite contents.
Diaphragm    
Material EPDM, PTFE/EPDM EPDM/Reinforced
    PTFE/Silicone
Actuator    
Manual Plastic handle Stainless steel handle
Pneumatic Plastic or stainless Double-acting
  steel  
  Normally open and  
  Normally closed  
Accessories    
  Stroke limiter  
  Position indicators  
  Indication units  

Certificates:

Surface finish certificate
Traceability certificate EN10204 3.1 B on valve bodies
FDA.

For more detailed information about the choices, see further information in the specific data sheets for valve bodies, diaphragms and actuators.

Dimensions


 

Seat size Dim Manual Actuator
(Ss)           Normally Closed Normally Open
    601 612 673 653 605 625 687 650 605 625 687 650
  A max. 62       92.5     77 92.5     77
8 B max. 32       68     42 68     42
  L max. 72       72     72 72     72
  A max.   83   89   102.5   101   62.5   101
10 B max.   60   63   68   61   68   61
  L max.   108   108   108   108   108   108
  A max.     116 108     143 130     109 130
25 B max.     90 92     128 90     128 90
  L max.     120 120     120 120     120 120
  A max.     133 133     180 168     138 168
40 B max.     114 114     158 114     158 114
  L max.     153 153     153 153     153 153
  A max.     144 155     215 216     161 216
50 B max.     140 132     213 132     213 132
  L max.     173 173     173 173     173 173

The dimensions and weights are the maximum values and will vary slightly with the port connection.

Technical data

For further technical data, please see specifications in the separate PD sheets for Valve bodies, Diaphragms and Actuators.

Ordering

The ordering leaflets include item numbers for complete valves of the standard program - these numbers can be used directly for ordering.
When ordering other options, please state the following:

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

The valves are supplied disassembled in 3 parts
Please specify if you want the valve assembled on delivery.