PEECO Flow Switches
Flow Switch Options & Accessories
Customize your PEECO switch for any application
PEECO Flow Actuated Electrical Switches are not standard shelf items — they are specifically designed to accommodate your application. The following options allow customization for virtually any flow sensing requirement. Contact Northeast Controls Inc. to discuss which options are appropriate for your application.
Available Options
Air Operated Option
PEECO flow switches can be supplied with an air operated actuator in place of the standard micro-switch. The air operated option provides a pneumatic output signal proportional to flow conditions, suitable for use with pneumatic control systems. Available on both Explosion Proof and Non-Explosion Proof models.
- →Pneumatic output signal
- →Compatible with explosion proof and non-explosion proof models
- →Suitable for pneumatic control systems
- →Available in all standard connection styles
Dash Pot Option
The Dash Pot option provides time delay on the make or break of the switch contact. This prevents nuisance tripping due to momentary flow fluctuations, pulsations, or turbulence. The dash pot is a hydraulic time delay device that can be adjusted in the field.
- →Hydraulic time delay — field adjustable
- →Prevents nuisance tripping from pulsations
- →Available on make or break contact
- →Compatible with all standard PEECO models
Direct Reading Option
The Direct Reading option provides a visual indication of flow directly at the switch. A mechanical indicator shows whether flow is present or absent, allowing operators to verify flow conditions without electrical instrumentation. Available on Non-Explosion Proof models.
- →Visual flow indication at the switch
- →No electrical power required for indication
- →Available on Non-Explosion Proof models
- →Useful for local verification of flow status
High Temperature / Heat Dissipation Option
For applications where process temperatures exceed 300°F, PEECO offers a finned body extension that dissipates heat before it reaches the micro-switch. This allows PEECO switches to operate in process temperatures up to 2000°F. The extension length is calculated based on process temperature and ambient conditions.
- →Process temperatures to 2000°F
- →Finned body extension dissipates heat
- →Extension length calculated per application
- →Available on all PEECO models
Low Flow Option
The Low Flow option allows PEECO switches to detect very low flow rates that would not actuate a standard paddle. Special low-flow paddles and sensitivity adjustments allow detection of flows as low as a fraction of a foot per second. Also available as a Low-Low Flow option for extremely sensitive applications.
- →Detects very low flow velocities
- →Special low-flow paddle design
- →Field adjustable sensitivity
- →Low-Low Flow option available for critical applications
Multiple Action Option
Multiple Action switches provide two or more switch contacts actuated by a single flow sensing element. This allows a single PEECO switch to simultaneously control multiple circuits — for example, activating an alarm at one flow rate and shutting down a pump at a different flow rate.
- →Two or more switch contacts per unit
- →Single flow element actuates multiple circuits
- →Independent adjustment of each switch point
- →Available on all standard PEECO models
Turbulent Flow / Perforated Paddle Option
In applications with high turbulence, cavitation, or pulsating flow, a standard solid paddle may chatter or give erratic readings. The Perforated Paddle option reduces the effect of turbulence by allowing flow to pass through the paddle, providing stable actuation even in difficult flow conditions.
- →Perforated paddle reduces turbulence effects
- →Stable actuation in pulsating flow
- →Reduces chatter and erratic switching
- →Available on all standard PEECO models
Sanitary / Tri-Clamp Option
PEECO flow switches are available with Tri-Clamp (Tri-Clover) sanitary connections for use in food, beverage, pharmaceutical, and biotech applications. All wetted parts are polished to sanitary standards. Available in both Explosion Proof and Non-Explosion Proof configurations.
- →Tri-Clamp / Tri-Clover connections
- →Sanitary polished wetted surfaces
- →Available in explosion proof and non-explosion proof
- →Meets sanitary requirements for food, beverage, pharma
Stem Dampener Option
The Stem Dampener provides mechanical damping of the paddle stem to prevent chatter and erratic switching in turbulent or pulsating flow conditions. Unlike the Dash Pot (which provides time delay), the Stem Dampener provides continuous mechanical damping proportional to the rate of stem movement.
- →Mechanical damping of paddle stem
- →Prevents chatter in turbulent flow
- →Continuous damping — not time delay
- →Field adjustable damping level
Teflon® Option
For corrosive or high-purity applications, PEECO switches are available with Teflon® (PTFE) coated or all-Teflon wetted parts. The Teflon option provides excellent chemical resistance to virtually all process fluids. Available in partial Teflon (paddle and stem only) or all-Teflon configurations.
- →Teflon® (PTFE) wetted parts
- →Excellent chemical resistance
- →Partial Teflon (paddle/stem) or all-Teflon
- →Available on explosion proof and non-explosion proof models
Time Delay Option
The Time Delay option provides an electronic time delay on the output of the PEECO switch. Unlike the mechanical Dash Pot, the electronic Time Delay option provides precise, repeatable time delays that can be set to specific values. Available as delay-on-make, delay-on-break, or both.
- →Electronic time delay — precise and repeatable
- →Delay-on-make, delay-on-break, or both
- →Adjustable delay time
- →Prevents nuisance alarms from momentary flow changes
Pig Detectors
PEECO Pig Detectors are specialized flow switches designed to detect the passage of pipeline pigs (cleaning and inspection tools) through a pipeline. The detector senses the mechanical displacement caused by the pig passing the sensing element, providing a reliable signal for pig tracking and pipeline management systems.
- →Detects passage of pipeline pigs
- →Mechanical displacement sensing
- →Reliable signal for pig tracking systems
- →Available in screwed and flanged connections
PEECO Flow Switch Models
Contact PEECO Sales — Northeast Controls Inc.
1+201-419-6111 · [email protected]
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