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Flow Switches

We offer highly reliable flow switches that have been engineered to specifically monitor the presence or absence of liquid, gas, or air flow in a system. Our liquid flow switches are available in vane-operated, piston, and mechanically actuated designs. We have the instruments to protect pumps, motors and equipment from the effects of low or no flow conditions. Our compact flow switch models come in piston designs to deliver proven performance in air and pure water applications. Vane flow switches are available at Transcat with field adjustability, providing count-on protection against flow variation or the stoppage of fluids, gases and flowing solids. You’ll also find brass flow switches designed to manage high inline pressure. Our switch selection includes explosion-proof products from Dwyer Instruments that have proven their worth in pipelines.

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  1. Dwyer AFS-251 Flow switch, gases, 18 AWG, 24"
    Dwyer Instruments AFS-251 Flw swtch, gases, 18 AWG, 24" polymeri, brss pstn brss hsng
    Order #: AFS-251
    Mfg #: AFS-251
    Availability: Ships in 3-4 weeks
    $1,877.70
    Flw swtch, gases, 18 AWG, 24" polymeri, brss pstn brss hsng Learn More
  2. Dwyer AFS-232 Flow switch, gases, 1/2" NPT conduit
    Dwyer Instruments AFS-232 Adjustable Flow Switch for Gases,1/2"NPT Conduit Conn.
    Order #: AFS-232
    Mfg #: AFS-232
    Availability: Ships in 3-4 weeks
    $1,291.35
    Adjustable Flow Switch for Gases,1/2"NPT Conduit Conn. Learn More
  3. Dwyer Instruments TDS222
    Dwyer Instruments TDS222 Thermal Dispersion Flow Switch PVDF wetted parts, 4.5" length
    Order #: TDS222
    Mfg #: TDS222
    Availability: Please contact Transcat Customer Service for availability.
    Thermal Dispersion Flow Switch PVDF wetted parts, 4.5" length Learn More
  4. Dwyer Instruments TDS212
    Dwyer Instruments TDS212 Thermal Dispersion Flow Switch PVDF wetted parts, 3.0" length
    Order #: TDS212
    Mfg #: TDS212
    Availability: Please contact Transcat Customer Service for availability.
    Thermal Dispersion Flow Switch PVDF wetted parts, 3.0" length Learn More
  5. Dwyer Instruments TDS122
    Dwyer Instruments TDS122 Thermal Dispersion Flow Switch PP/PPS wetted parts 4.5" length
    Order #: TDS122
    Mfg #: TDS122
    Availability: Ships in 3-4 weeks
    $541.90
    Thermal Dispersion Flow Switch PP/PPS wetted parts 4.5" length Learn More
  6. Dwyer Instruments TDS112
    Dwyer Instruments TDS112 Thermal Dispersion Flow Switch PP/PPS wetted parts 3.0" length
    Order #: TDS112
    Mfg #: TDS112
    Availability: Ships in 3-4 weeks
    $516.70
    Thermal Dispersion Flow Switch PP/PPS wetted parts 3.0" length Learn More
  7. Dwyer Instruments GVS-113
    Dwyer Instruments GVS-113 Series GVS Globe Valve Switch Actuation set pt 2.0-8.0 GPM
    Order #: GVS-113
    Mfg #: GVS-113
    Availability: Ships in 3-4 weeks
    $622.15
    Series GVS Globe Valve Switch Actuation set pt 2.0-8.0 GPM Learn More
  8. Dwyer Instruments P2-15
    Dwyer Instruments P2-15 Series P2 Flow Switch Actuation set point .42 CFM
    Order #: P2-15
    Mfg #: P2-15
    Availability: Ships in 3-4 weeks
    $177.65
    Series P2 Flow Switch Actuation set point .42 CFM Learn More
  9. Dwyer Instruments P2-11
    Dwyer Instruments P2-11 Series P2 Flow Switch Actuation set point .05 GPM
    Order #: P2-11
    Mfg #: P2-11
    Availability: Ships in 3-4 weeks
    $177.65
    Series P2 Flow Switch Actuation set point .05 GPM Learn More
  10. Dwyer Instruments V8-WP
    Dwyer Instruments V8-WP Flotect Vane Operated Flow SW with weatherproof enclosure
    Order #: V8-WP
    Mfg #: V8-WP
    Availability: Please contact Transcat Customer Service for availability.
    Flotect Vane Operated Flow SW with weatherproof enclosure Learn More
  11. Dwyer Instruments V6EPS-S-S-6-S
    Dwyer Instruments V6EPS-S-S-6-S Flotect Mini-Size Flow Switch SST upper and lower body
    Order #: V6EPS-S-S-6-S
    Mfg #: V6EPS-S-S-6-S
    Availability: Please contact Transcat Customer Service for availability.
    Flotect Mini-Size Flow Switch SST upper and lower body Learn More
  12. Dwyer Instruments V6EPS-S-S-5-S
    Dwyer Instruments V6EPS-S-S-5-S Flotect Mini-Size Flow Switch SST upper and lower body
    Order #: V6EPS-S-S-5-S
    Mfg #: V6EPS-S-S-5-S
    Availability: Ships in 3-4 weeks
    $1,000.10
    Flotect Mini-Size Flow Switch SST upper and lower body Learn More
  13. Dwyer Instruments V6EPS-S-S-4-S
    Dwyer Instruments V6EPS-S-S-4-S Flotect Mini-Size Flow Switch SST upper and lower body
    Order #: V6EPS-S-S-4-S
    Mfg #: V6EPS-S-S-4-S
    Availability: Ships in 3-4 weeks
    $880.05
    Flotect Mini-Size Flow Switch SST upper and lower body Learn More
  14. Dwyer Instruments V6EPS-S-S-3-S
    Dwyer Instruments V6EPS-S-S-3-S Flotect Mini-Size Flow Switch SST upper and lower body
    Order #: V6EPS-S-S-3-S
    Mfg #: V6EPS-S-S-3-S
    Availability: Ships in 3-4 weeks
    $665.20
    Flotect Mini-Size Flow Switch SST upper and lower body Learn More
  15. Dwyer Instruments V6EPS-S-S-2-S
    Dwyer Instruments V6EPS-S-S-2-S Flotect Mini-Size Flow Switch SST upper and lower body
    Order #: V6EPS-S-S-2-S
    Mfg #: V6EPS-S-S-2-S
    Availability: Please contact Transcat Customer Service for availability.
    Flotect Mini-Size Flow Switch SST upper and lower body Learn More
  16. Dwyer Instruments V6EPS-S-S-1-S
    Dwyer Instruments V6EPS-S-S-1-S Flotect Mini-Size Flow Switch SST upper and lower body
    Order #: V6EPS-S-S-1-S
    Mfg #: V6EPS-S-S-1-S
    Availability: Please contact Transcat Customer Service for availability.
    Flotect Mini-Size Flow Switch SST upper and lower body Learn More
  17. Dwyer Instruments V6EPS-S-D-6-S
    Dwyer Instruments V6EPS-S-D-6-S Flotect Mini-Size Flow Switch SST upper and lower body
    Order #: V6EPS-S-D-6-S
    Mfg #: V6EPS-S-D-6-S
    Availability: Please contact Transcat Customer Service for availability.
    Flotect Mini-Size Flow Switch SST upper and lower body Learn More
  18. Dwyer Instruments V6EPS-S-D-5-S
    Dwyer Instruments V6EPS-S-D-5-S Flotect Mini-Size Flow Switch SST upper and lower body
    Order #: V6EPS-S-D-5-S
    Mfg #: V6EPS-S-D-5-S
    Availability: Please contact Transcat Customer Service for availability.
    Flotect Mini-Size Flow Switch SST upper and lower body Learn More
  19. Dwyer Instruments V6EPS-S-D-3-S
    Dwyer Instruments V6EPS-S-D-3-S Flotect Mini-Size Flow Switch SST upper and lower body
    Order #: V6EPS-S-D-3-S
    Mfg #: V6EPS-S-D-3-S
    Availability: Please contact Transcat Customer Service for availability.
    Flotect Mini-Size Flow Switch SST upper and lower body Learn More
  20. Dwyer Instruments V6EPS-S-D-2-S
    Dwyer Instruments V6EPS-S-D-2-S Flotect Mini-Size Flow Switch SST upper and lower body
    Order #: V6EPS-S-D-2-S
    Mfg #: V6EPS-S-D-2-S
    Availability: Please contact Transcat Customer Service for availability.
    Flotect Mini-Size Flow Switch SST upper and lower body Learn More
  21. Dwyer V6EPB-B-S-6-MI
    Dwyer Instruments V6EPB-B-S-6-MI Flotect Mini-Size Flow Switch Brass upper and lower body
    Order #: V6EPB-B-S-6-MI
    Mfg #: V6EPB-B-S-6-MI
    Availability: Please contact Transcat Customer Service for availability.
    Flotect Mini-Size Flow Switch Brass upper and lower body Learn More
  22. Dwyer Instruments V6EPB-B-S-6-B
    Dwyer Instruments V6EPB-B-S-6-B Flotect Mini-Size Flow Switch Brass upper and lower body
    Order #: V6EPB-B-S-6-B
    Mfg #: V6EPB-B-S-6-B
    Availability: Please contact Transcat Customer Service for availability.
    Flotect Mini-Size Flow Switch Brass upper and lower body Learn More
  23. Dwyer Instruments V6EPB-B-S-5-MI
    Dwyer Instruments V6EPB-B-S-5-MI Flotect Mini-Size Flow Switch Brass upper and lower body
    Order #: V6EPB-B-S-5-MI
    Mfg #: V6EPB-B-S-5-MI
    Availability: Please contact Transcat Customer Service for availability.
    Flotect Mini-Size Flow Switch Brass upper and lower body Learn More
  24. Dwyer Instruments V6EPB-B-S-4-MI
    Dwyer Instruments V6EPB-B-S-4-MI Flotect Mini-Size Flow Switch Brass upper and lower body
    Order #: V6EPB-B-S-4-MI
    Mfg #: V6EPB-B-S-4-MI
    Availability: Ships in 3-4 weeks
    $464.95
    Flotect Mini-Size Flow Switch Brass upper and lower body Learn More
  25. Dwyer Instruments V6EPB-B-S-3-MI
    Dwyer Instruments V6EPB-B-S-3-MI Flotect Mini-Size Flow Switch Brass upper and lower body
    Order #: V6EPB-B-S-3-MI
    Mfg #: V6EPB-B-S-3-MI
    Availability: Ships in 3-4 weeks
    $410.95
    Flotect Mini-Size Flow Switch Brass upper and lower body Learn More
Showing 1-25 of 49
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Don’t forget about these!

  1. Teenage Mutant Ninja Turtles - Original Sketch Turtles 40th Anniversary 5" Action Figure 4-Pack

    Teenage Mutant Ninja Turtles - Original Sketch Turtles 40th Anniversary 5" Action Figure 4-Pack

    Long ago in Dover, New Hampshire, two upstart comic artists passed the time making each other laugh. Kevin Eastman sketched an unlikely combination of "Ninja" and "Turtle." Peter Laird answered back with his own version. Before long, a new sketch emerged of all 4 teenage brothers, ready for action. And the rest, as they say, is history!

    Features:

    • ORIGINAL DESIGNS: This item includes a highlight detailed figure of the original sketch of all four Turtles as seen in the first ever group sketch by Kevin Eastman!
    • ATTACHABLE BASE: Each figure comes with a special base to stand on, that can attach to the base of the other three Turtles to recreate the scene from the sketch!
    • ACCESSORIES: Each Collector Figure comes with his signature weapon, as seen in the sketch.
    • COMIC BOOK: Set includes an art card of the original sketch to display with the figure, and an exclusive comic book!
    • COLLECT THEM ALL: Collect all the TMNT Original Sketch Collector Figures and accessories from Playmates Toys, your headquarters for Teenage Mutant Ninja Turtles toys!

    Proudly brought to you by Popcultcha, Australia's largest online retailer for all things Teenage Mutant Ninja Turtles! Click here to check out our full range!

    As low as $119.99
  2. Teenage Mutant Ninja Turtles (2012) - Turtles Basic 4" Action Figure 6-Pack

    Teenage Mutant Ninja Turtles (2012) - Turtles Basic 4" Action Figure 6-Pack

    To commemorate the highly successful Nickelodeon launch of the Teenage Mutant Ninja Turtles in 2012, this highly collectible Shellraiser bundle pack has been released.

    The set includes the four basic figure action figures of Teenage Mutant Ninja Turtles, Master Sensei Splinter and the evil Shredder based on how they appeared in the 2012 TV series.

    All six figures come packed out in their 2012 blister card packages with original artwork. The six blister carded figures come shipped in the Turtles group vehicle, Shellraiser illustrated closed box.

    • Each figure stands between 4.25" and 5.5" tall
    • Fully articulated and poseable
    • Characters come with their iconic weapon accessories
    • Authentically decorated as they appeared in the hit TV series!
    • Includes Leonardo, Donatello, Michelangelo, Raphael, Splinter and Shredder

    Proudly brought to you by Popcultcha, Australia's largest and most comprehensive TMNT online store. Click here to see the full range of our TMNT merchandise.

    As low as $99.99
  3. Teenage Mutant Ninja Turtles (2003) - Raphael Classic 4" Action Figure

    Teenage Mutant Ninja Turtles (2003) - Raphael Classic 4" Action Figure

    Step back into 2003 with these Classic TMNT Action Figures from Playmates!

    Prone to swift bursts of anger and gradual cooldowns, Raphael is a Sai master who, unfortunately, hasn't quite mastered keeping his own temper in check. To manage his emotions, he diligently engages in meditation sessions or channels his intensity into a series of powerful strikes against a heavy punching bag.

    The detailed 4" figure appears just as Raphael did in 2003 and comes in retro packaging with classic graphics. Also included are Raphael's signature twin sai, two ninja throwing stars, and a pulley line rider.

    Collect all four turtles and expand your TMNT headquarters!

    Another awesome TMNT collectible, proudly brought to you by Popcultcha! Check out our full Teenage Mutant Ninja Turtles collection here.

    As low as $24.99
  4. Teenage Mutant Ninja Turtles: Mutant Mayhem - Leonardo 4" Scale Action Figure

    Teenage Mutant Ninja Turtles: Mutant Mayhem - Leonardo 4" Scale Action Figure

    Get ready for the Mutant Mayhem figures and accessories, based on the new CG animated Teenage Mutant Ninja Turtles movie! Leonardo is the Turtles’ leader in blue, and now he’s a wannabe student in high school!

    As Leo and his brothers start to leave the nest—er, the sewer—he’s set on transforming them into a crime-fighting team that he can lead to victory. With some help from their rat-dad Splinter, the Teenage Mutant Ninja Turtles will be undefeetable! (Foot pun intended). Leonardo figure is 4.5” tall and designed to match his movie character. Set includes his signature katana and comes in a unique Mutant Mayhem package!

    • AUTHENTIC: Leonardo stands 4.5" tall and is authentically detailed with individual sculpting and decoration to match his movie character.
    • HIGHLY POSEABLE: Leonardo has 12 points of articulation for great, action-packed battle poses!
    • ACCESSORIES: Leo comes ready for battle with his iconic twin katana, a separate weapons rack with different accessories, and a baby turtle!
    • MOVIE PACKAGING: Set comes in a highly decorated blister card package with bright, bold details that include TMNT Mutant Mayhem movie branding.
    • COLLECT THEM ALL: Collect all the TMNT Mutant Mayhem action figures and accessories from Playmates Toys, your Teenage Mutant Ninja Turtles Toy Headquarters!

    Another great Teenage Mutant Ninja Turtles collectable from Popcultcha, Australia's largest and most comprehensive TMNT on-line store. For more of our great Ninja Turtles products please click here.

    As low as $19.99
  5. Teenage Mutant Ninja Turtles: Mutant Mayhem - Raphael 4" Scale Action Figure

    Teenage Mutant Ninja Turtles: Mutant Mayhem - Raphael 4" Scale Action Figure

    Get ready for the Mutant Mayhem figures and accessories, based on the new CG animated Teenage Mutant Ninja Turtles movie! Raphael has a big attitude and big dreams, which are (in no particular order) to punch someone so hard they throw up and to be a mixed martial arts fighter.

    Together, he and his brothers leave their sewer for the city above, fighting crime and learning that there is no "i" in team (even if Raph insists that there is technically a "me" in it). Raphael figure is 4.65” tall and designed to match his movie character. Set includes his iconic twin sais and comes in a unique Mutant Mayhem package!

    • AUTHENTIC: Raphael stands 4.60" tall and is highly detailed with individual sculpting and decoration to match his movie character.
    • HIGHLY POSEABLE: Raphael has 12 points of articulation for great, action-packed battle poses!
    • ACCESSORIES: Raph comes ready for battle with his iconic twin sai and a separate weapons rack loaded with different accessories and a baby turtle!
    • MOVIE PACKAGING: Set comes in a highly decorated blister card package with bright, bold details that include TMNT Mutant Mayhem movie branding..
    • COLLECT THEM ALL: Collect all the TMNT Mutant Mayhem action figures and accessories from Playmates Toys, your Teenage Mutant Ninja Turtles Toy Headquarters!

    Another great Teenage Mutant Ninja Turtles collectable from Popcultcha, Australia's largest and most comprehensive TMNT on-line store. For more of our great Ninja Turtles products please click here.

    As low as $19.99
  6. Teenage Mutant Ninja Turtles (2003) - Leonardo Classic 4" Action Figure

    Teenage Mutant Ninja Turtles (2003) - Leonardo Classic 4" Action Figure

    Step back into 2003 with these Classic TMNT Action Figures from Playmates!

    In the realm of mutated turtles, none rival Leonardo's dedication to study and training. His sense of responsibility naturally places him as the team's informal leader, though the other Turtles might dispute that.

    The detailed 4" figure appears just as Leo did in 2003 and comes in retro packaging with classic graphics. Also included are Leo's signature katana swords, two ninja throwing stars, and a suction cup to scale walls.

    Collect all four turtles and expand your TMNT headquarters!

    Another awesome TMNT collectible, proudly brought to you by Popcultcha! Check out our full Teenage Mutant Ninja Turtles collection here.

    As low as $24.99
  7. Teenage Mutant Ninja Turtles: Mutant Mayhem - Donatello 4" Scale Action Figure

    Teenage Mutant Ninja Turtles: Mutant Mayhem - Donatello 4" Scale Action Figure

    Give a shout out to this 5.5” Ninja Shouts Donatello figure and he’s gonna shout right back—in his authentic movie voice! Donatello is the brains of the Turtles team, making sure they're always outfitted with the latest machines. He may not be the leader of the group, but that doesn't mean he can't be an idol!

    Now that he's left the sewer, it's time for Donatello to fight for his dream—game-developer by day, K-Pop star by night—alongside his brothers, his biggest (and maybe only) fans. Pull back Donnie’s arm or leg to hear eight phrases or four sound effects! Keep holding on and he’ll stretch out or repeat what he’s saying! What a brainiac!

    • AUTHENTIC: Donnie stands 5.5” tall and comes authentically decorated and detailed just as he appears in the hit movie
    • SHOUT OUT: Pull back on his spring-loaded right arm or left leg to make him shout—spoken by the same talent who voices Donnie in the movie
    • HOLD ON: When you pull back Donnie's arm or leg and hold it, the word he’s saying is stretched and a syllable is repeated until you let go—then the word and phrase is completed and followed by a battle sound effect
    • LOTS TO SAY: Donnie figure includes nine phrases and five sound effects
    • COLLECT THEM ALL: Collect all the TMNT Mutant Mayhem action figures and accessories from Playmates Toys, your Teenage Mutant Ninja Turtles Toy Headquarters

    Another great Teenage Mutant Ninja Turtles collectable from Popcultcha, Australia's largest and most comprehensive TMNT on-line store. For more of our great Ninja Turtles products please click here.

    As low as $19.99
  8. Teenage Mutant Ninja Turtles (2003) - Donatello Classic 4" Action Figure

    Teenage Mutant Ninja Turtles (2003) - Donatello Classic 4" Action Figure

    Step back into 2003 with these Classic TMNT Action Figures from Playmates!

    For any fixing needs, Donatello is the go-to Turtle. With an impressive knack for understanding how things operate, he likely developed this skill by dismantling and reassembling objects since his early turtle days in diapers.

    The detailed 4" figure appears just as Donatello did in 2003 and comes in retro packaging with classic graphics. Also included is Donatello's signature bo staff, two ninja throwing stars, and two weapon caps to add to his staff.

    Collect all four turtles and expand your TMNT headquarters!

    Another awesome TMNT collectible, proudly brought to you by Popcultcha! Check out our full Teenage Mutant Ninja Turtles collection here.

    As low as $24.99
  9. Teenage Mutant Ninja Turtles (2003) - Leonardo, Raphael, Donatello & Michelangelo Classic 4" Action Figure 4-Pack

    Teenage Mutant Ninja Turtles (2003) - Leonardo, Raphael, Donatello & Michelangelo Classic 4" Action Figure 4-Pack

    Step back into 2003 with these Classic TMNT Action Figures from Playmates!

    These reissues are from the 2003 line, and this special 4-Pack allows you to collect all four turtles and expand your TMNT headquarters! These detailed 4" figures appear just as they did in 2003 and feature retro packaging with classic graphics.

    In the realm of mutated turtles, none rival Leonardo's dedication to study and training. His sense of responsibility naturally places him as the team's informal leader, though the other Turtles might dispute that.

    The Leonardo 4" action figure includes Leo's signature katana swords, two ninja throwing stars, and a suction cup to scale walls.

    For any fixing needs, Donatello is the go-to Turtle. With an impressive knack for understanding how things operate, he likely developed this skill by dismantling and reassembling objects since his early turtle days in diapers.

    The Donatello 4" action figure includes Donatello's signature bo staff, two ninja throwing stars, and two weapon caps to add to his staff.

    Michelangelo's rapid wit is matched only by his agility with the Nunchaku, making his ninjutsu style a serious force to be reckoned with. When facing the formidable Shredder, his skills are no laughing matter.

    The Michelangelo 4" action figure includes Mikey's signature nunchaku, two ninja-throwing stars, and a climbing box for quick escapes.

    Prone to swift bursts of anger and gradual cooldowns, Raphael is a Sai master who, unfortunately, hasn't quite mastered keeping his own temper in check. To manage his emotions, he diligently engages in meditation sessions or channels his intensity into a series of powerful strikes against a heavy punching bag.

    The Raphael 4" action figure includes his signature twin sai, two ninja throwing stars, and a pulley line rider.

    Make sure you don’t miss out and grab the Teenage Mutant Ninja Turtles (2003) - Leonardo, Raphael, Donatello & Michelangelo Classic 4" Action Figure 4-Pack for your collection today and you will never have to face The Shredder alone!

    Another awesome TMNT collectible, proudly brought to you by Popcultcha! Check out our full Teenage Mutant Ninja Turtles collection here.

    As low as $99.99
  10. Teenage Mutant Ninja Turtles (2003) - Michelangelo Classic 4" Action Figure

    Teenage Mutant Ninja Turtles (2003) - Michelangelo Classic 4" Action Figure

    Step back into 2003 with these Classic TMNT Action Figures from Playmates!

    Michelangelo's rapid wit is matched only by his agility with the Nunchaku, making his ninjutsu style a serious force to be reckoned with. When facing the formidable Shredder, his skills are no laughing matter.

    The detailed 4" figure appears just as Mikey did in 2003 and comes in retro packaging with classic graphics. Also included are Mikey's signature nunchaku, two ninja throwing stars, and a climbing box for quick escapes.

    Collect all four turtles and expand your TMNT headquarters!

    Another awesome TMNT collectible, proudly brought to you by Popcultcha! Check out our full Teenage Mutant Ninja Turtles collection here.

    As low as $24.99