Dixon/Rieger MP-Series Mix Proof Valve

Dixon Distributor? 

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1" to 6"
Maximum Temperature
266°F (130°C)
Temperature Rating
Sterilization Temperature: 300°F (149°C)
Pressure Rating
Holding Pressure: 145 PSI (10 bar) Maximum
Actuator Air Pressure: Minimum 87 PSI (6 bar) to Maximum 145 PSI (10 bar)



In food and beverage industries when the need to separate non-compatible liquids is required

Available Options

  • Burkert Control Tops – ASI, 24 VDC, Device Net, EtherNet/IP Solution
  • Piggable double seal valve design
  • PMO Valves
  • Different pipe sizes on the same valve available
  • Change over
  • Bottom seat
  • Steam barrier / balancer cleaning
  • Aseptic version
  • PMO (Pasteurized Milk Ordinance) Valves


  • Material Product Wetted: 1.4404/AISI316L
  • Material Non Product Contact: 1.4301/AISI304L
  • Wetted Product Surfaces: Rₐ <= 0.8 µm (32) other surfaces available
  • Non Product Contact Surfaces: Rₐ <= 1.6 µm


  • Vacuum safe
  • Balanced valve disks
  • Radial sealing of both valve seats
  • No impact between valve disk and body
  • No need of impact buffering cylinder
  • No soiling behind O-rings
  • Waterhammer safe up to 30 bar (435 PSI)
  • Change of seals without special tools
  • Service possible without compressed air
  • Lower requirement for controlled air pressure
  • Valve insert completely removable
  • Easy cleaning by lifting both disks
  • Lifting function for both valve seats as standard
  • Only 4 seals
  • Kᵥ-value cleaning 1 .4 mᵌ/h
  • Low pressure loss: 0 .8 PSI


Sterilization temperature approximately 20 minutes dependent upon operating conditions

Safety Notes

WARNING: This product contains lead, a chemical known to the State of California to cause cancer and birth defects or other reproductive harm.


3-A Sanitary Standards for Double-Seat Mixproof Valves, Number 85-03 (Authorization Number 1631)

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