DualSafe™ Aseptic Mixproof Valve - AM1

Product Type(s) : Aseptic Valves
Industries : Dairy Processing
Description :

The DualSafe™ Aseptic Mixproof Valve maintains aseptic conditions all the time while avoiding the mix of incompatible products ensuring product safety and quality while reducing the environmental impact.



APV DualSafe™ Aseptic Mixproof Valve is designed to ensure aseptic processing in the most demanding environments. Our innovative solution combines advanced technology with meticulous design to ensure aseptic conditions, superior cleanability and uncompromising product quality and safety. Here’s what sets our valve system apart:

Maintain Aseptic Conditions always

Our valve system is built on a robust design principle that ensures aseptic conditions are maintained consistently by utilizing proven diaphragm technology. Two independent shafts effectively separate incompatible media, safeguarding the integrity of your products. Equipped with aseptic inlet and outlet valves, our system offers an extra layer of protection, ensuring that contamination risks are minimized, and product purity is preserved.

Improved Cleanability for Product Safety and CIP Consumption Reduction

Efficiency and cleanliness go hand in hand with our valve system, featured with independent seat lifting function and seat lift pulsation for thorough cleaning. This innovative design significantly reduces the consumption of Cleaning-In-Place (CIP) fluids. Key design elements include:

  • Upper Line without dome: Prevents air pockets, ensuring continuous velocity pattern for a comprehensive cleaning.
  • Minimized Shadow Areas: Reduces hard-to-clean zones within the flow area.
  • Optimized Flow: Computational Fluid Dynamics (CFD) optimized flow in valve housings ensures efficient and thorough cleaning.
  • PTFE Diaphragm: Featuring no convolutions, the PTFE diaphragm presents a much smaller surface area compared to other solutions, enhancing its cleanability. PTFE’s superior cleaning properties further ensure high hygiene standards are maintained.

Product Quality and Safety

Our valve system is engineered to protect and enhance product quality while adhering to the highest safety standards. Key features include:

  • Thermal Protection: PTFE diaphragms are designed to reduce thermal transfer, preserving the quality of temperature-sensitive products.
  • Surface Finish: With a surface roughness of less than 0.8µm and e-polished housing, our system minimizes microbial adhesion, ensuring a high level of hygiene.
  • Temperature Monitoring: A standard protection tube in the steam chamber allows for precise temperature sensor installation, ensuring accurate monitoring and control.
  • Certified Materials: All product contact metal items come with a 3.1 certificate, including heat numbers, guaranteeing traceability and compliance with industry standards.
  • 3A Design: Our valve system is designed to meet 3A sanitary standards, providing peace of mind regarding product safety.

Choose our valve system for a cutting-edge solution that ensures aseptic conditions, enhances cleanability, and upholds the highest standards of product quality and safety. With our advanced technology and innovative design, you can trust that your processes will be efficient, safe, and reliable.

Theory of Operation

The DuoSafeTM Aseptic Mixproof Valve is designed for aseptic process systems. The safe separation of incompatible medias is ensured by two independent valve shafts and the aseptic conditions are maintained via the steam loaded separation cavity and the unique diaphragm design.

Comprehensive cleaning is ensured via seat lifting function and detailed monitoring of all different valve status is ensured by the advanced CU43plus.

Valve Closed
Valve Open
Upper Seat Lifting
Lower Seat Lifting


Sizes: 1.5" - 3" DN40 – DN65

Housing Types: LT, TT


  • Inside: Electropolished Ra 0.8 µm
  • Outside: Glass-blasted, satin finish

Product Pressure:

  • Max. Pipeline: 10 Bar (145 psi)

Air Pressure: 6 - 8 bar (87 – 116 psi)

  • Main valve valve: Normally Closed
  • Inlet side valve: Normally Open
  • Outlet side valve: Normally Closed

Max. Temperature: 135ºC (for short time 150ºC)

Diaphragms: PTFE

Standard elastomer seals: EPDM

Optional elastomer seals: HNBR / FKM

Lower shaft / main valve: PTFE with stainless steel core in 1.4301

Shafts / side valve: PTFE with stainless steel core in 1.4305

Product Wetted Parts:

  • 1.4404/AISI 316L.
  • 3.1 Certificate included as standard.

Other stainless-steel parts: 1.4301/AISI 304

Main valve with seat lifting function.

CU43plus control unit on top of the main valve.

Protection tube provided to install temperature sensor as standard.

Incorporated visual detection leakage path.

Designed to meet 3A standard.


  • Normally closed inlet side valve
  • Normally open outlet side valve
  • Side valves with elastomeric profile*
  • Elastomeric profile seat seals for the main valve*
  • PT100 sensor
    • H346663 Temperature sensor 20VDC
    • H348743 Temperature sensor IO-Link

* Please ask factory for availability