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48 Series

Limit Switches for Hazardous Locations
Aluminum & Stainless

Overview  |  Brochure  |  Video (Coming Soon)  |  Data Sheets  |  IOM Manuals  |  3D CAD Files  |  Case Studies

48 Series
Hazardous Locations
Limit Switch

Aluminum & Stainless

  • Compact Design & Quick Set Cams
  • 3D Models Available for All Designs and Sizes
  • Easy Wiring Through PCB Terminal, 10pt.
  • Single and Dual-Coil Solenoid Valve Options
  • High Visibility Open/Close Beacon
  • 3-Way T-Port & L-Port Beacon Options
  • Includes 30x80x30 NAMUR Mounting Bracket
  • Other Mounting Brackets Available

Certifications 

  • CE
  • ATEX II 3 D
  • ATEX II 2 G Ex d IIC T6 Gb
  • ATEX II 2 D Ex t IIIC T*
  • SIL-2 Rating
  • Class I, Division 1, Groups C and D; Class II, Division 1,
    Groups E, F and G; Class III; Temp Code T4A
  • Class I, Division 2, Groups A, B, C and D; Class II, Division 1,
    Groups E, F and G; Class III; Temperature Code T4A
  • Ex d IIB T5 Gb; Ex tb IIIC T108°C Db
  • Ex nA IIC T5 Gc; Ex tb IIIC T108°C Db
  • Class I Zone 1, AExd IIB T5 Gb;
  • Class II, Zone 21 AEx tb IIIC T108°C Db
  • Class I, Zone 2 AEx nA IIC T5Gc;
  • Class II, Zone 21, AEx tb IIIC T108°C Db

Technical Videos

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YouTube Video UExSelBPX28zNmI1SC1vQ2ZzaUxURjBHRnk0Qm44Q0hHNS4wOTA3OTZBNzVEMTUzOTMy

Convert Max-Air Rack & Pinion Actuator from Fail Close to Fail Open or from Fail Open to Fail Close

Max-Air Technology August 31, 2023 2:15 am

This tutorial covers the basics of adjusting the open & close travel stops on MT Series actuators. For more information, visit www.maxairtech.com/

This tutorial covers the basics of adjusting the open & close travel stops on MT Series actuators.

For more information, visit www.maxairtech.com/

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YouTube Video UExSelBPX28zNmI1SC1vQ2ZzaUxURjBHRnk0Qm44Q0hHNS4yODlGNEE0NkRGMEEzMEQy

MT Series – Travel Stop Adjustment Tutorial

Max-Air Technology November 3, 2022 6:42 pm

This tutorial covers the basics of setting the supply pressure on a standard air filter regulator. For more information, visit www.maxairtech.com/

This tutorial covers the basics of setting the supply pressure on a standard air filter regulator.

For more information, visit www.maxairtech.com/

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YouTube Video UExSelBPX28zNmI1SC1vQ2ZzaUxURjBHRnk0Qm44Q0hHNS41MjE1MkI0OTQ2QzJGNzNG

Air Controls – Air Filter Regulators Tutorial

Max-Air Technology November 3, 2022 6:42 pm

Recently, we had the opportunity to photograph one of our LockMesh® Coated Actuators after 2 years of service. This unit comes from a prominent salt mining and processing company. They have had great success using our LockMesh® Coated Actuators. With several hundred units installed, they have specified our coated actuators for all future projects. This is a significant cost savings for them when compared to the alternatives of stainless steel actuators or replacing standard aluminum actuators every few months. More info on our LockMesh® Coating: https://www.maxairtech.com/literature/04-FeatureFocus/00-Max-Air_FeatureFocus_LockMesh.PDF Max-Air is proud to offer our advanced coating system, LockMesh®. This hybrid coating system combines the rugged toughness of a stainless steel base coating with the corrosion resistance of PTFE. Corrosive environment applications such as marine areas, caustic wash down, submerged service, and direct chemical exposure require equipment with enhanced corrosion resistance. Frequently the common options are plating, painting, or a change to stainless steel construction. All of these can be effective in some applications; however, they do have limitations and in some cases carry a significant weight and/or cost impact. LockMesh® has been shown to provide a cost effective compromise. It provides the chemical resistance of PTFE along with the durability enhancement of a stainless steel base layer.

Recently, we had the opportunity to photograph one of our LockMesh® Coated Actuators after 2 years of service. This unit comes from a prominent salt mining and processing company. They have had great success using our LockMesh® Coated Actuators. With several hundred units installed, they have specified our coated actuators for all future projects. This is a significant cost savings for them when compared to the alternatives of stainless steel actuators or replacing standard aluminum actuators every few months.

More info on our LockMesh® Coating:
https://www.maxairtech.com/literature/04-FeatureFocus/00-Max-Air_FeatureFocus_LockMesh.PDF

Max-Air is proud to offer our advanced coating system, LockMesh®.
This hybrid coating system combines the rugged toughness of a stainless
steel base coating with the corrosion resistance of PTFE.

Corrosive environment applications such as marine areas, caustic
wash down, submerged service, and direct chemical exposure require
equipment with enhanced corrosion resistance. Frequently the common
options are plating, painting, or a change to stainless steel construction.
All of these can be effective in some applications; however, they do have
limitations and in some cases carry a significant weight and/or cost
impact.

LockMesh® has been shown to provide a cost effective compromise.
It provides the chemical resistance of PTFE along with the durability
enhancement of a stainless steel base layer.

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YouTube Video UExSelBPX28zNmI1SC1vQ2ZzaUxURjBHRnk0Qm44Q0hHNS4wMTcyMDhGQUE4NTIzM0Y5

LockMesh Coating for Rack & Pinion Actuators | Exclusively from Max-Air Technology

Max-Air Technology July 30, 2021 7:20 pm

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Data Sheets

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IOM Manuals

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3D CAD Models

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Check out these Case Studies!

Custom Forged Sesto Trunnion Ball Valves w/ Air Controls, Explosion Proof Termination, & Pneumatic Actuators Case StudiesHD SeriesLimit SwitchesMT SeriesSesto ForgedSolenoid Valves
July 28, 2025

Custom Forged Sesto Trunnion Ball Valves w/ Air Controls, Explosion Proof Termination, & Pneumatic Actuators

Even more Pneumatically Automated Explosion Proof Forged Trunnion Valves are shipping today! This order is a great example of the transition point between affordability of a Rack & Pinion and Scotch Yoke. At some point in the consideration of a higher torque actuator, the decision…
Max-Air Technology
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3-PC 2000 WOG Ball Valves w/ Extended Butt Weld End Connections Automated w/ Pneumatic & Electric Actuators Case StudiesLimit SwitchesM32 SeriesMA SeriesMT SeriesSolenoid Valves
July 28, 2025

3-PC 2000 WOG Ball Valves w/ Extended Butt Weld End Connections Automated w/ Pneumatic & Electric Actuators

This is a fantastic example of our Extended Butt Weld End Connections available on our Sesto M32 Series 2000 WOG Ball Valves! These are being automated by our Max-Air Rack & Pinion and MA Series Max-Electric Actuators.
Max-Air Technology
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Pneumatically Operated Resilient Seated Butterfly Valve w/ Open/Close Feedback & Declutchable Gear Override 050/051 SeriesCase StudiesGOW SeriesLimit SwitchesMT SeriesSolenoid Valves
October 23, 2024

Pneumatically Operated Resilient Seated Butterfly Valve w/ Open/Close Feedback & Declutchable Gear Override

These Delta T Resilient Butterfly Valves in Ductile Iron Wafer Body w/ Stainless Steel Disc & EPDM Seat are being operated by our MT Series Rack & Pinion Actuators. Each assembly has a GOW Series Declutchable Gear Operator for Manual Override. The Solenoid diverts air,…
Max-Air Technology
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30″ Delta T Class 150 High Performance Butterfly Valve w/ Spring Return Scotch Yoke Actuator, Limit Switch, Solenoid, Termination, & Tubing 800 SeriesCase StudiesHD SeriesLimit Switches
October 23, 2024

30″ Delta T Class 150 High Performance Butterfly Valve w/ Spring Return Scotch Yoke Actuator, Limit Switch, Solenoid, Termination, & Tubing

This Delta T 851 Series, High Performance, Stainless Steel, Class 150, Butterfly Valves is being automated by our HD Series, Scotch Yoke Actuator and includes limit switch, solenoid valve, and termination. There was also another 18" Valve in the same configuration that shipped with this…
Max-Air Technology
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Sesto Class 150 Flange Multiport Ball Valve w/ 3-Way Indicator Limit Switch, Solenoid Valve, & Termination Case StudiesLimit SwitchesMM1F SeriesMT SeriesSolenoid Valves
October 21, 2024

Sesto Class 150 Flange Multiport Ball Valve w/ 3-Way Indicator Limit Switch, Solenoid Valve, & Termination

These Pneumatically Automated Sesto 3-Way Valves include Limit Switch w/ L-Port Beacon, Termination, Solenoid Valve w/ Speed Control Mufflers, and our Patented Dual Travel Stop MT Rack & Pinion Actuator. Each product in this assembly is 100% provided by Max-Air! We have a full line…
Max-Air Technology
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Max-Air MT Series Aluminum Rack & Pinion Actuator w/ Gear Operator & Explosion Proof Limit Switch/Termination Case StudiesGOW SeriesLimit SwitchesMT SeriesSolenoid Valves
October 16, 2024

Max-Air MT Series Aluminum Rack & Pinion Actuator w/ Gear Operator & Explosion Proof Limit Switch/Termination

Below you will see an MT Series Rack and Pinion Actuator w/ Explosion Proof Solenoid, Limit Switch Box, and Termination. Our GOW Series Declutchable Override features an easy declutch mechanism, integrated block and bleed capability, and lockout/tagout holes.
Max-Air Technology
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2″ Carbon Steel 2000 WOG Sesto Ball Valves w/ Max-Air Explosion Proof Solenoid, Limit Switch Box, & Termination Case StudiesLimit SwitchesM32 SeriesMT SeriesSolenoid Valves
October 7, 2024

2″ Carbon Steel 2000 WOG Sesto Ball Valves w/ Max-Air Explosion Proof Solenoid, Limit Switch Box, & Termination

These 2" 2000 WOG (Class 800) 3-Pc Ball Valves in Carbon Steel are going out as Explosion Proof Packages! The Termination from Solenoid to Limit Switch includes Seal-Off Fitting w/ Seal Off Compound. Have a hazardous location application? Reach out to our team of experts…
Max-Air Technology
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