Applicable for liquid food products
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Dairy production
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Beverage and beer production
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Sauces, mayonnaise, ketchup
DA3+ Series Double Seat Mix Proof Valves
Double Seat Mix Proof valve with seat lift function, for increased hygienic treatment requirements. Key feature of this model is that it is not necessary to flush the inter seat space during CIP cleaning of the pipelines after the upper or lower seat has been lifted.
Brief characteristics
- Type: piston, double seat, hygienic, pneumatically operated
- Function: with anti-mixing protection, shut-off valve
- Sizes: ISO 1.5" - 6" OD pipe, DIN DN40-150, mixed sizes
- Connection: butt welded end (S)
- Rest: Actuator (proximity switches), seat lift (SL)
Key features
- Seat lifting
- Fully balanced
- The design prevents hydraulic shock (pressure surges)
- Independent seats
- Minimum probability of leaks during operation
- Large seat space
- No cross contamination
- Maintenance of valve does not require air supply
- All moving parts are protected
- Complies with EHEDG standards
Operation
Closed
- Upper shaft
- Pipeline 1, cleaning liquid
- Closed
- Pipeline 2, liquid product
- Leak chamber
- Lower valve shaft
- Drainage pipe
- Supply of cleaning solution
- Drainage of CIP leaks
Open
- Upper shaft
- Pipeline 1, liquid product
- Open
- Pipeline 2, liquid product
- Leak chamber closed
- Lower valve shaft
- Drainage pipe
- Cleaning solution supply
- Drainage of CIP leaks
Valve actuator
- Required air pressure: 6 - 10 bar
- Three sizes fit all valves from DN40 - DN150 / 1.5" - 4" + 6" pipe OD
- Spring-loaded cylinder in fully welded body
- Easy to service actuator parts
- Built-in valve position transmitter with sight glass
- 5 year warranty
Complies with European Union standards
Shut-off valve housings
It is possible to supply enclosures with different positions
Examples of use
- Tank piping
- Loading pipe
- Pipeline or tank cleaning
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