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D4 / DA4 Series - Double Seat Mixproof Valves

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

Sizes: 

  • OD Tube 1.5" - 6"
  • Schedule 5 Pipe 2" - 6
  • Others on request

Product Wetted Parts: 1.4404/AISI 316L Other stainless steel parts 1.4301/AISI 304 Non-Product Wetted Parts:  AISI 304 / 1.4301 Seal Materials (All seals comply with FDA requirement): 

  • Standard EPDM
  • Optional: HNBR, FPM

Surfaces:

  • Inside: Ra 32 µ-in (0.8 µm) with Electro-polish
  • Outside: Glass -blasted, satin finish

Required Air Pressure: 73 psi (5 bar), valve normally closed

D4 SERIES




DIMENSIONS INCH A A1 A2 B øDa øDi F H L L1 L2 X* Y*
1.5 19.1 22.4 24.9 4.7 1.5 1.4 4.9 2.5 26.3 29.5   32.3 7.8
2.0 19.2 22.5 25 4.9 2.0 1.9 4.9 3.0 27.1 30.4   32.7 8.5
2.5 19.4 22.6 25.1 5.2 2.5 2.4 4.9 3.4 27.9 31.2   33.1 9.2
3.0 19.6 22.9 25.4 5.4 3.0 2.9 4.9 3.9 28.9 32.1   33.5 9.9
4.0 23.4 26.7 29.2 6.1 4.0 3.8 5.6 4.9 34.4 37.7   33.1 11.9
6.0 28.6 31.3 33.8 7.6 5.8 6.0 5.9 6.9 43.1 45.7   42.5 15.4
2.0 Sh5 19.3 22.6 25.1 5.1 2.4 2.2 4.9 3.2 27.6 30.9   29.5 9.0
3.0 Sh5 23.0 26.3 28.8 5.8 3.5 3.3 5.6 4.3 33.2 36.4   35.4 11.1
4.0 Sh5 26.4 29.6 32.1 6.7 4.5 4.3 5.9 5.3 38.4 41.7   40.2 13.0
6.0 Sh5 28.8 31.5 34 7.9 6.6 6.4 5.9 7.4 44.1 46.8   42.7 16.1

*Minimum installation and valve insert removal dimensions

NOTE: Add the following approximate dimension to “F” for each clamp port connection 0.5" for valve sizes 1.5" - 3.0", 0.62" for valve size 4" and 0.88" for valve size 6.0".

Housing Combinations

 

Shut-off Valves

Mixproof shut-off valves are used to keep incompatible products from mixing at pipe junctions, or to simply shut flow from an upper to lower line within a valve matrix.

Divert Valves

Mixproof divert valves are used for distributing liquid from one pipeline into two others (or vice versa)

 

 

Control Units

 

CU4 & CU4plus 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
  • Innovative seat lift detection is fully integrated without need for external sensor wiring to provide additional position monitoring
  • 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
  • NEMA6/IP67/IP69k*, washdown rating
  • ATEX / IECEx rated environments

 

CONNECTOR OPTIONS

S/O Cord Grip for hard wire (std)

M12 4-pin connector (optional)

POSITION INDICATION

CU4: 2 internal feedback sensors for valve open/valve closed position detection
CU4plus: Automatic teaching of all positions with press of single button
CU4plus: Detection of all positions (open, close, upper/lower seat lifts)

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)

*IP69K compliance achieved by modification of the exhaust

 

8681 Control Unit - Benefits

  • Contact free position sensor including (3) programmable feedback signals
  • Positions easily taught via intuitive push buttons or Autotune feature to ensure quick & easy set-up
  • Ultra-bright 360° visual LED position indication with adjustable red, yellow, & green color assignments provide clarity from all points of view and avoid confusion
  • Manual override and air throttle adjustable solenoids to assist start-up, maintenance, and troubleshooting
  • Up to IP69K washdown rating available (IP65/67 as standard) for high washdown environments
  • Built-in microcontroller tracks cycles and alerts operator when preventive maintenance is required
  • Simple and robust stainless steel adapter & chemically resistant polycarbonate head
  • Supplied by industry leading Burkert Fluid Controls

 

CONNECTOR OPTIONS

Quick Disconnect Pin Connector

POSITION INDICATION

(3) programmable position sensors in control top

INTERFACE OPTIONS

AS-i Field Bus Card

DeviceNet™ Field Bus Network Card

SOLENOID VALVES

24V DC

Manual override and air throttle adjustment

Up to (3) available in control top

Pressure Ratings:

  • Operating Pressure:  Maximum line pressure: 145 psi (10 bar)

Maximum Temperature:

  • EPDM & HNR: 275ºF / 135ºC (short time 284ºF / 140ºC)
  • FPM 275ºF / 135ºC
  • Not to be used for steam

Sterilization Temperature:

  • EPDM & HNBR: (short time) 284ºF / 140ºC

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