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Manifolds

Reduce Assembly Costs and Leak Points with Custom Integrated Manifolds.

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Streamline your fluidic system design and accelerate time to market with custom, integrated manifolds from The Lee Company

  • Save space with compact, integrated designs
  • Reduce leak points and internal volume
  • Lower assembly costs with pre-assembled manifolds
  • Seamlessly integrate solenoid valves, pumps, check valves, restrictors, sensors, PCBs, and more
  • Benefit from decades of fluid control expertise, and access a single-source solution for design and manufacturing
  • Collaborate through prototyping with machined or 3D printed parts

Manifold material and manufacturing technique selection is driven by chemical compatibility, complexity of the fluidic passages, cost, production volumes, and optical clarity requirements. We’ll work with you to assess which approach is best based on your application needs. 

Conventionally Machined

Integrating miniature valves into a manifold using conventional cross-drilled machining is a major step towards reducing tubing and fluid volume. Drilled passages must be straight and construction passageways must be plugged in conventionally machined manifolds. This approach is typically chosen when the valve count is minimal, and the flow paths are simple.

At only 0.6” (15 mm) tall, 1.6” (40 mm) wide and 1.7” (43 mm) long, this ultra compact conventionally machined manifold seamlessly integrates a US Series Disc Pump and a 3-way LHD Series solenoid valve .
At only 0.6” (15 mm) tall, 1.6” (40 mm) wide and 1.7” (43 mm) long, this ultra compact conventionally machined manifold seamlessly integrates a US Series Disc Pump and a 3-way LHD Series solenoid valve .
This conventionally machined manifold integrates our Smart Pump Module with two LHD Series solenoid valves and allows you to quickly and easy generate pressure and vacuum and switch between the two easily, ideal for pushing and pulling through microfluidic cartridges.
This conventionally machined manifold integrates our Smart Pump Module with two LHD Series solenoid valves and allows you to quickly and easy generate pressure and vacuum and switch between the two easily, ideal for pushing and pulling through microfluidic cartridges.
This PEEK manifold allows reagent switching or dispensing via our 7mm, 2-way LFN Series solenoid valves .
This PEEK manifold allows reagent switching or dispensing via our 7mm, 2-way LFN Series solenoid valves .
Available in PEEK, PMMA and PEI, our variable volume precision dispense pumps are customizable and can incorporate valves.
Available in PEEK, PMMA and PEI, our variable volume precision dispense pumps are customizable and can incorporate valves.
This compact conventionally machined manifold is populated with four 2-way LHL Series Latching solenoid valves .
This compact conventionally machined manifold is populated with four 2-way LHL Series Latching solenoid valves .

Multi-layer Bonded

Multi-layer manifolds are ideal for applications with many valves, when the fluidic schematic is more complex, when integrated flow cells are required, or when the output pattern requires tighter spacing than other components allow (e.g., valve center-to-center spacing). These bonded manifolds stack multiple layers of plates containing different machined passages. The different plates are then bonded together either by epoxy, diffusion, or solvent weld.

Twenty of our pneumatic LHD Series solenoid valves are integrated onto a multilayer bonded manifold, enabling a compact design that meets the tightly spaced output pattern of the consumable.
Twenty of our pneumatic LHD Series solenoid valves are integrated onto a multilayer bonded manifold, enabling a compact design that meets the tightly spaced output pattern of the consumable.
Twenty of our pneumatic LHD Series solenoid valves are integrated onto a multilayer bonded manifold, enabling a compact design that meets the tightly spaced output pattern of the consumable.
Twenty of our pneumatic LHD Series solenoid valves are integrated onto a multilayer bonded manifold, enabling a compact design that meets the tightly spaced output pattern of the consumable.
A bonded manifold enables this tightly spaced dispensing output pattern, with integrated LFV Series solenoid valves and nozzles.
A bonded manifold enables this tightly spaced dispensing output pattern, with integrated LFV Series solenoid valves and nozzles.

Ant Farm Bonded

The Ant Farm Technique involves machining a series of intricate flow paths or channels into a face of the manifold. After the machining operation, a plate is bonded over the flow passages to complete the circuit. In complex applications, the channels can be milled into more than one face of the manifold block. This manifold machining technique further reduces the overall manifold size compared to the other technologies. It also enables a modular design where modules of valve manifolds can be mounted onto a base plate via O-ring seals.

This manifold design capitalizes on the use of our Ant Farm Technique, integrating multiple styles of HDI® Platform valves (plug-in and face mount) in order to accommodate specific space constraints and flow schematic requirements of a system. The intricate flow paths that complete the internal circuit are showcased in the image on the right, where the bond plate has been partially cut away.
This manifold design capitalizes on the use of our Ant Farm Technique, integrating multiple styles of HDI® Platform valves (plug-in and face mount) in order to accommodate specific space constraints and flow schematic requirements of a system. The intricate flow paths that complete the internal circuit are showcased in the image on the right, where the bond plate has been partially cut away.
This manifold design exemplifies a higher degree of capability using our Ant Farm Technique, together with several HDI Platform solenoid valves and other critical components (pressure transducer and regulator).
This manifold design exemplifies a higher degree of capability using our Ant Farm Technique, together with several HDI Platform solenoid valves and other critical components (pressure transducer and regulator).
This complex manifold design takes a modular approach, while also employing our Ant Farm Technique. Four valve modules are mounted onto a distribution plate and O-rings with integrated screens are used to ensure a proper seal between the different manifold modules.
This complex manifold design takes a modular approach, while also employing our Ant Farm Technique. Four valve modules are mounted onto a distribution plate and O-rings with integrated screens are used to ensure a proper seal between the different manifold modules.

Injection Molded

Plastic injection molded manifolds can significantly reduce unit cost, reduce size and weight, and they enable unique geometries because they are not beholden to the straight drilled passage limitations of conventionally machined and bonded manifolds. The upfront costs associated with mold design and tooling typically make this option most appropriate for applications with high annual rates of production.

Our 3-way LHD Series solenoid valve with a cutaway view of a VHS Series dispensing valve mounted with a custom sleeve (red) for direct injection into a flow stream.
Our 3-way LHD Series solenoid valve with a cutaway view of a VHS Series dispensing valve mounted with a custom sleeve (red) for direct injection into a flow stream.
An ultra-light weight, compact solution for fluidically mounting fourteen 3-way LHL Series valves. Electrically, flexible connectors enable the unique mounting angle, and the single ganged connector enables a simple, single connection to a PCB.
An ultra-light weight, compact solution for fluidically mounting fourteen 3-way LHL Series valves. Electrically, flexible connectors enable the unique mounting angle, and the single ganged connector enables a simple, single connection to a PCB.

3D PRINTED MANIFOLDS

3D printed manifolds can aid in the prototyping phase by allowing you to quickly test various manifold design iterations. As an emerging technology, 3D printing is not yet a practical solution for long-term, robust, leak-proof, chemically inert, production-grade assemblies. However, as the technology continues to evolve, long-term options in a variety of materials – even metals – may become viable manifold solutions. 3D printing and Design For Manufacturability (DFM) considerations during the prototype phase ensure an easy transition to a production solution which uses the manifold technology best suited to your project.

MANIFOLD MATERIALS

Available manifold materials for each manufacturing technique. Other materials may also be available upon request.

Material Chemical Resistance Conventionally Machined Multi-Layer Bonded  Ant Farm Bonded Injection Molded 3D Printed
Various Resins

Low

X
Stainless Steel

Low

X
Aluminum Low X X
PC Low X X
ABS Low X X
PBT Low X X
PVDF Moderate X X
PMMA (acrylic) Moderate X X
PSU Moderate X
PEI Moderate X X
PEEK High X X

ASSEMBLY & TEST

Each manifold assembly is carefully built, tested, and sealed to ensure performance and cleanliness.

  • All pumps and valves are 100% tested individually before installation
  • Subcomponents are installed in a dedicated assembly cell
  • Inlet/outlet ports can include barbs, hypo tubes, or threaded fittings
  • Screens may be added ports (when space allows) to prevent contamination
  • Final assemblies are 100% tested to meet application-specific requirements, typically for leakage and flow, or other custom requirements that challenge various flow paths.
  • Ports are sealed after inspection to maintain cleanliness during transit
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