Pass-Thru’s

LFI Stainless Steel “Smart” Pass Thrus are designed to protect product when being passed through. Constructed of heavy gauge stainless steel to cGMP standards, these robust and “Smart” Pass Thrus are available in standard and custom sizes. The LFI “Smart” Pass Thru with smart auto door, utilizes an infared adjustable sensor with wave technogy. This is incorporated into the controller and automatically locks out the opposite door. All LFI Pass Thrus with Auto Door adhere to ANSI A.156.10 Standards.



Standard Stainless Steel Pass-Thru


LFI’s Stainless Steel Pass-Thru is constructed of 304 or 316L 16GA stainless steel, all joints are welded to assure an air tight atmosphere. All doors are constructed of stainless steel frame containing a recessed or surface gasket to avoid slipping when the doors are opened or closed. Continuously welded stainless steel lift off hinges are utilized. LFI’s exclusive Posi-lok Interlock allows only one door on each side to be open at a time; mechanical or electrical interlocks available. View panels or Plexiglas, lexan or safety glass can be incorporated into the doors.

Options: Purging Gas Ports, Lights, Sliding Doors, Electropolishing, Mounting Brackets, Removable Shelves, Stainless Steel T-Handles, Coved Corner Construction, Leg Supports, Sloped Tops, Finish Trim Angle, Stainless Steel Mounting Angle, Occupancy Indicator Lights, HEPA filtered systems.

Available in standard & custom configurations. Lifetime warranty against manufacturing defects. Two year parts warranty. All units are fully factory tested and certified at our facility and include a comprehensive manual for your IQ,OQ SOP in electronic format.





Smart Pass Thru


Laminar Flow Inc. has been in the business of providing high quality solutions for the Clean Room and Pharmaceutical process industry for over 47 years.

LFI Stainless Steel “Smart” Pass Thrus are designed to protect product when being passed through. Constructed of heavy gauge stainless steel to cGMP standards, these robust and “Smart” Pass Thrus are available in standard and custom sizes.

The LFI “Smart” Pass Thrus enable a host of controls:

  • Magnetically interlocking doors and lighting and fan initiation only when doors are opened, then lock when closed for a pre-determined set time
  • Available recirculating or once through
  • Automatic wave technology doors
  • Sensors and indicators quickly identify the stage in which the pass thru is operating
  • Laminated safety glass in tubular framed doors ensure a complete seal
  • LFI’s unique latch system enables both latches to simultaneously open on one actuator for ease of operator use, while ensuring even pressure on the door to complete the seal
  • Motors and HEPA lters are accessible from within the pass thru and all controls via an access panel on either or both sides of the pass thru

Smart Pass Thru with Auto Door


Laminar Flow Inc. has been in the business of providing high quality solutions for the Clean Room and Pharmaceutical process industry for over 47 years.

LFI Stainless Steel “Smart” Pass Thrus are designed to protect product when being passed through. Constructed of heavy gauge stainless steel to cGMP standards, these robust and “Smart” Pass Thrus are available in standard and custom sizes.

The LFI “Smart” Pass Thru with smart auto door, utilizes an infared adjustable sensor with wave technology. This is incorporated into the controller and automatically locks out the opposite door. All LFI Pass Thrus with Auto Door adhere to ANSI A.156.10 Standards.

The LFI “Smart” Pass Thrus enable a host of controls:

  • Automatic microprocessor programmable opener, adhering to ANSI A156.10
  • Magnetically interlocking doors and lighting and fan initiation only when doors are opened, then lock when closed for a pre-determined set time
  • Available recirculating or once through
  • Automatic Infrared Wave Technology Doors
  • Sensors and indicators quickly identify the stage in which the pass thru is operating
  • Laminated safety glass in tubular framed doors ensure a complete seal
  • LFI’s unique latch system enables both latches to simultaneously open on one actuator for ease of operator use, while ensuring even pressure on the door to complete the seal
  • Motors and HEPA filters are accessible from within the pass thru and all controls via an access panel on either or both sides of the pass thru


Walk Through Pass Thru


This unique pass thru is designed for applications where both personnel and equipment must be passed from a contaminated area into a clean room area simultaneously. Each customized unit is available in type 304 #4 stainless steel or 16 gauge cold rolled steel painted. The unit features all welded, or knock down construction. A choice of clear or amber plexiglass is available, this enables full visibility of personnel inside the pass thru.


HEPA Filtered Stainless Steel Pass-Thru


LFI’s Stainless Steel HEPA Filtered Pass-Thru is constructed of 304 or 316L 16GA stainless steel, all joints are welded to assure an air tight atmosphere. All doors are constructed of stainless steel frame containing a recessed or surface gasket to avoid slipping when the doors are opened or closed. Continuously welded stainless steel lift off hinges are utilized. LFI’s exclusive Posi-lok Interlock allows only one door on each side to be open at a time; mechanical or electrical interlocks available. View panels or Plexiglas, lexan or safety glass can be incorporated into the doors. Standard or custom sizes available.

HEPA or ULPA filtered air, to 99.99% at 0.3 microns or 99.9995% at 0.12 microns. The supply air can run continuously or when a door is opened, supplying a positive air pressure atmosphere. Variable Speed Control with Minihelic gauge to monitor system pressure and controls all mounted in blower section. All controls UL approved or listed.

Options: Purging Gas Ports, Lights, Sliding Doors, Electropolishing, Mounting Brackets, Removable Shelves, Stainless Steel T-Handles, Coved Corner Construction, Leg Supports, Sloped Tops, Finish Trim Angle, Stainless Steel Mounting Angle, Occupancy Indicator Lights, HEPA filtered systems.

Available in standard & custom configurations. Lifetime warranty against manufacturing defects. Two year parts warranty. All units are fully factory tested and certified at our facility and include a comprehensive manual for your IQ,OQ SOP in electronic format.


Personnel Pass-Thru


LFI’s Stainless Steel Personnel Pass-Thru is designed for applications where both personnel and equipment must be passed from a contaminated area into a clean room area simultaneously. Constructed of 304 or 316L 16GA stainless steel, all joints are welded to assure an air tight atmosphere. All doors are constructed of stainless steel frame containing a recessed or surface gasket to avoid slipping when the doors are opened or closed. Continuously welded stainless steel lift off hinges are utilized. LFI’s exclusive Posi-lok Interlock allows only one door on each side to be open at a time; mechanical or electrical interlocks available. View panels or Plexiglas, lexan or safety glass can be incorporated into the doors.

Options: Purging Gas Ports, Lights, Sliding Doors, Electropolishing, Removable Shelves, Stainless Steel T-Handles, Coved Corner Construction, Sloped Tops, Finish Trim Angle, Occupancy Indicator Lights, HEPA filtered systems.

Available in standard & custom configurations. Lifetime warranty against manufacturing defects. Two year parts warranty. All units are fully factory tested and certified at our facility and include a comprehensive manual for your IQ,OQ SOP in electronic format.


Floor Mounted Pass-Thru


LFI’s Stainless Steel Floor Mounted or Cart Pass-Thru is constructed of 304 or 316L 16GA stainless steel, all joints are welded to assure an air tight atmosphere. All doors are constructed of stainless steel frame containing a recessed or surface gasket to avoid slipping when the doors are opened or closed. Continuously welded stainless steel lift off hinges are utilized. LFI’s exclusive Posi-lok Interlock allows only one door on each side to be open at a time; mechanical or electrical interlocks available. View panels or Plexiglas, lexan or safety glass can be incorporated into the doors.

Options: Purging Gas Ports, Lights, Sliding Doors, Electropolishing, Stainless Steel T-Handles, Coved Corner Construction, Sloped Tops, Finish Trim Angle, Occupancy Indicator Lights, HEPA filtered systems.

Available in standard & custom configurations. Lifetime warranty against manufacturing defects. Two year parts warranty. All units are fully factory tested and certified at our facility and include a comprehensive manual for your IQ,OQ SOP in electronic format.


Carousel Pass-Thru


LFI’s Stainless Steel Carousel Pass-Thru is constructed of 304 or 316L 16GA stainless steel, all joints are welded to assure an air tight atmosphere. All doors are constructed of stainless steel frame containing a recessed or surface gasket to avoid slipping when the doors are opened or closed. Continuously welded stainless steel lift off hinges are utilized. LFI’s exclusive Posi-lok Interlock allows only one door on each side to be open at a time; mechanical or electrical interlocks available. View panels or Plexiglas, lexan or safety glass can be incorporated into the doors.

Options: Purging Gas Ports, Lights, Sliding Doors, Electropolishing, Stainless Steel T-Handles, Coved Corner Construction, Sloped Tops, Finish Trim Angle, Occupancy Indicator Lights, HEPA filtered systems.

Available in standard & custom configurations. Lifetime warranty against manufacturing defects. Two year parts warranty. All units are fully factory tested and certified at our facility and include a comprehensive manual for your IQ,OQ SOP in electronic format.


Roll Up Pass Thru


LFI’s Stainless Steel Roll Up Pass-Thru are built to customers specific size. Constructed of 304 or 316L 16GA stainless steel, all joints are welded. Each door features a safety stop, with electronic eye verification at the entrance. Push button for open and close operation on both sides. Ramps to facilitate loading are standard. Solid stainless steel roll up doors, or fabric doors with windows are also available.

Options: Purging Gas Ports, Lights, Sliding Doors, Electropolishing, Removable Shelves, Stainless Steel T-Handles, Coved Corner Construction, Sloped Tops, Finish Trim Angle, Occupancy Indicator Lights, HEPA filtered systems.

Available in standard & custom configurations. Lifetime warranty against manufacturing defects. Two year parts warranty. All units are fully factory tested and certified at our facility and include a comprehensive manual for your IQ,OQ SOP in electronic format.


VHP Compatible Stainless Steel Pass-Thru


LFI’s VHP Compatible Pass-Thru is constructed of 304 or 316L 16GA stainless steel, all joints are welded to assure an air tight atmosphere. All doors are constructed of stainless steel frame containing a recessed or surface gasket to avoid slipping when the doors are opened or closed. Continuously welded stainless steel lift off hinges are utilized. LFI’s exclusive Posi-lok Interlock allows only one door on each side to be open at a time; mechanical or electrical interlocks available. View panels or Plexiglas, lexan or safety glass can be incorporated into the doors. Standard or custom sizes available.

HEPA or ULPA filtered air, to 99.99% at 0.3 microns or 99.9995% at 0.12 microns. The supply air can run continuously or when a door is opened, supplying a positive air pressure atmosphere. Variable Speed Control with Minihelic gauge to monitor system pressure and controls all mounted in blower section. All controls UL approved or listed.

Options: Purging Gas Ports, Lights, Sliding Doors, Electropolishing, Mounting Brackets, Removable Shelves, Stainless Steel T-Handles, Coved Corner Construction, Leg Supports, Sloped Tops, Finish Trim Angle, Stainless Steel Mounting Angle, Occupancy Indicator Lights, HEPA filtered systems.

Available in standard & custom configurations. Lifetime warranty against manufacturing defects. Two year parts warranty. All units are fully factory tested and certified at our facility and include a comprehensive manual for your IQ,OQ SOP in electronic format.


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