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D4 / DA4 Series - Double Seat Mix Proof Valves

Product Type:
Valves / Valve Manifolds

Offers reliable separation of fluids and an ultra-hygienic option for enhanced cleanability.

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Features

The next generation of mix proof valve technology is the result of continued development from both APV and Waukesha Cherry-Burrell process technologies. Used for the reliable separation of dissimilar fluids, the D4 Series helps fulfill todays customer demands for production flexibility, increased productivity, rapid return on investment (ROI), and improved product quality across the Food & Beverage, Dairy, Personal Care and Brewing process industries.


High value, Low life cycle costs:

  • Tiered model range helps to increase ROI and align with customer budgets
  • All In standard features provide exceptional value
  • Reduced inventory costs with same seal kit used on multiple size ranges: DN40-DN65 (1.5-3.0) and DN80-DN100 (4.0)
  • Reduced CIP losses improve cost savings
  • Low air consumption and air supply requirements
  • Long housing ports ease manifold building
  • Integrated shaft seal flush reduces need for external piping
  • Replacement insert available to easily upgrade existing installations


Reliable performance:

  • Fully balanced design helps to prevent hydraulic blocking, withstand pressure spikes, and enables flexible flow direction without slamming
  • Light overall weight helps support handling without lifting tools
  • Slim stainless actuator is fully enclosed to prevent fluid ingress
  • Range of control units and bus communication for automated operation
  • No compressed air needed for removal and servicing


Cleanability:

  • Designed to the latest hygienic standards
  • Standard cavity spray cleaning
  • Extensive cleaning of product contact seals

Benefits:

 

Valve Type   Feature Benefit
D4 1 Radial seal design for reduced losses of product fluids during switching - Product cost savings
- Cleaner operating environment
DA4 2 Integrated upper and lower shaft seal and balancer flushing - Extensive cleaning of product contact surfaces
DA4 3 Metal orifices control CIP flow during seat lift - Reduces chemical and water loss consumption
D4 and DA4      4 Open yoke design - Reduces heat transfer from product zone into actuator
- Provides visual leak detection of damaged shaft seals
- Safety guard provided to reduce pinch points
5 Bolted flange connection for housing/insert - Heavy duty, secure connection
- Reliable and controlled assembly and disassembly of valve insert
6 Long ports to ease manifold building - Helps to reduce spool pieces and welds to ease manifold building
7 Balanced upper and lower shafts (as standard) - No hydraulic blocking
- Resistant against pressure spikes
- Flexibility in either flow direction through the valve (top-to-bottom or bottom-to-top) without water hammering
8 Large separation cavity drain port - Less product risk and guards against pressure build up which could cause cross-contamination.
9 Flush cavity spray fixed connection (as standard) - Enhanced cleaning
- Removes residual media in separation cavity when full CIP is not readily available
- Hard-piped flush can be used without need to be removed during valve maintenance
Theory of Operation

Double seat mix proof valves are used to efficiently process two different fluids (typically product and CIP) through the valve simultaneously. The mix proof design has two seats which isolate the upper and lower pipe lines when the valve is in the fail-safe closed position. The atmospheric vent cavity in between the seats creates a path for any leakage should the seals fail as well as a drain for CIP solution during seat cleaning. An external CIP spray flush is included to provide enhanced cleaning of the leakage and vent cavity while the valve is closed or open during production.



Valve Closed

Optional Lower Seat Clean

Valve Open



Optional Upper Seat Clean

Key Applications

Food & Beverages

  • Soft Drinks
  • Beer
  • Wine & Spirits
  • Milk
  • Dressings & Soups
  • Juices
Dimensions

D4




Dimensions mm A A1 B øDi øDa F H L L1 X* Y*
DN                      
40 483 566 120 38 41 125 63 666 749 820 200
50 487 570 126 50 53 125 75 688 771 830 218
65 495 578 134 66 70 125 91 720 803 840 242
80 583 666 146 81 85 142.5 106 835 918 930 274
100 593 676 156 100 104 142.5 125 874 957 940 303
INCH                      
1.5 485 568 119 34.8 38.1 125 63 667 750 820 197
2.0 488 571 125 47.6 50.8 125 75 688 771 830 216
2.5 492 575 131 60.3 63.5 125 85.3 708.3 791.3 840 233
3.0 498 581 137 72.9 76.1 125 97.9 732.9 815.9 850 251
4.0 594 677 155 97.6 101.6 142.5 125 874 957 840 301

*Minimum installation and valve insert removal dimensions

D4 SL




Dimensions mm A A1 B øDi øDa F H L L1 X* Y*
DN                      
40 524 607 120 38 41 125 63 707 790 870 200
50 528 611 126 50 53 125 75 729 812 880 218
65 536 619 134 66 70 125 91 761 844 890 242
80 618 701 146 81 85 142.5 106 870 953 980 274
100 628 711 156 100 104 142.5 125 909 992 990 303
INCH                      
1.5 526 609 119 34.8 38.1 125 63 708 791 870 197
2.0 529 612 125 47.6 50.8 125 75 729 812 880 216
2.5 534 617 131 60.3 63.5 125 85.3 750.3 833.3 900 233
3.0 540 623 137 72.9 76.1 125 97.9 774.9 857.9 900 251
4.0 629 712 155 97.6 101.6 142.5 125 909 992 990 301

*Minimum installation and valve insert removal dimensions

DA4




Dimensions mm A A1 B øDi øDa F H L L1 X* Y*
DN                      
40 589 672 120 38 41 125 63 772 855 930 200
50 593 676 126 50 53 125 75 794 877 940 218
65 601 684 134 66 70 125 91 826 909 950 242
80 678 761 146 81 85 142.5 106 930 1013 1030 274
100 688 771 156 100 104 142.5 125 969 1052 1040 303
INCH                      
1.5 588 671 119 34.8 38.1 125 63 770 853 930 197
2.0 594 677 125 47.6 50.8 125 75 794 877 940 216
2.5 598 681 131 60.3 63.5 125 85.3 814.3 897.3 950 233
3.0 604 687 137 72.9 76.1 125 97.9 838.9 921.9 960 251
4.0 689 772 155 97.6 101.6 142.5 125 969 1052 1050 301

*Minimum installation and valve insert removal dimensions

Options

Housing Combinations

 

Shut-off Valves


 

Control Units

 

CU4 Series - Benefits

  • Automated control and position monitoring for reliable processing
  • Reduces compressed air and electrical connections
  • Helps reduce external solenoid valve cabinets
  • Accelerates valve response time
  • Reliability and long service life - robust clamp connection, reinforced stainless steel air coupling threads to avoid air leakages, and water tight seals
  • Ease of operation - contains manual override solenoids and adjustment screw to throttle air flow to actuator to ensure optimal opening and closing
  • Clarity - clear and bright indication of valve position - 5 diodes in LED panel and convenient location
  • Standardization - same control top used on various SPX FLOW valve lines, offers common look and controls interface
  • NEMA 6 (IP67) washdown rating

 

CONNECTOR OPTIONS

  • S/O Cord Grip for hard wire (std)

POSITION INDICATION

  • 2 internal feedback sensors for valve open/valve closed position detection

INTERFACE OPTIONS

  • 24V DC Direct Connect
  • AS-i Field Bus Card

SOLENOID VALVES

  • 24V DC
  • Select 1 (non seat lift) or 3 Solenoids (seat lift)
Videos
D4 Series Hygienic Double Seat Mix Proof Valves
Drawings & Models
DIN METRIC
D4 CU4 Control Unit
zip
D4 Proximity Switch
zip
D4SL CU4 Control Unit
zip
D4SL Proximity Switch
zip
DA4 CU4 Control Unit
zip
DA4 Proximity Swith
zip
OD INCH TUBE
D4 CU4 Control Unit
zip
D4 Proximity Switch
zip
D4SL CU4 Control Unit
zip
D4SL Proximity Switch
zip
DA4 CU4 Control Unit
zip
DA4 Proximity Switch
zip
Downloads
Brochures
APV-8048 D4 Series Double Seat Mix Proof Valves GB CH DE ES ES-LA FI FR NL NL-BE PL PT-BR
APV-8047 Valve Key GB
Manuals
APV DELTA D4/D4 SL GB CN CZ DE DK ES FI FR HU IT NL PL PT
APV DELTA DA4 GB CN CZ DE DK ES FI FR HU IT NL PL PT
Success Stories
D4 Series Mix Proof Valve Manifold US
D4SL Mix Proof Valve - Yogurt Mix US
DA4 Mix Proof Upgrade Insert - Nutritional Beverage US
Press Release
D4 Hygienic Mix Proof Valve US