
4019889 Comparison
| photo | price | summary | rating |
|---|---|---|---|
![]() | $41.00 | Condition is New – Open box, POSI-FLATE 4019889 SWITCH NSNP, FREE SHIPPING | 99.8% |
| photo | price | summary | rating |
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![]() | $24.95 | Top Pick! Condition is New, New No Box Posi-Flate 4019889 Pressure Switch M3-6, FREE SHIPPING | 99.8% |
| photo | price | summary | rating |
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![]() | $39.99 | Top Pick! Condition is Used, Posi-Flate 4019889 Pressure Switch, shipping cost = $19.50 | ![]() |

The Posi-Flate 4019889 pressure switch is a versatile and reliable pneumatic control component designed to automatically turn on or off compressed air tools and equipment based on the achieved pressure level. This switch is engineered to deliver consistent and accurate pressure control, ensuring optimal performance and productivity.
The Posi-Flate 4019889 pressure switch comes with a robust and durable construction, featuring a die-cast aluminum housing, which not only adds to its resilience but also makes it lightweight and easy to install. The switch's compact size, measuring 3.4 inches long, 1.8 inches wide, and 1.2 inches high, makes it suitable for various applications where space is a concern.
The Posi-Flate 4019889 pressure switch operates by utilizing a diaphragm that reacts to changes in air pressure. When the desired pressure is reached, the diaphragm moves, actuating a contact inside the switch, which then completes the electrical circuit. This results in the tool or equipment receiving compressed air. Conversely, when the pressure drops below the set point, the contact opens, cutting off the compressed air supply.
This pressure switch boasts an adjustable pressure range of 5 to 150 psi (0.3 to 10.3 bar), providing the flexibility to cater to a wide variety of applications. The switch's operating temperature range is between -40 F to 185 F (-40 C to 85 C), ensuring it can function effectively in various environmental conditions.
The Posi-Flate 4019889 pressure switch is equipped with a clear, easy-to-read dial pressure gauge, allowing users to quickly and accurately monitor the current pressure level. The switch also features a built-in pressure relief valve that protects the equipment against overpressure situations, ensuring safety and preventing damage.
The Posi-Flate 4019889 pressure switch includes mounting hardware, making the installation process straightforward and hassle-free. It is also compatible with various wiring configurations, including normally open, normally closed, and changeover.
In summary, the Posi-Flate 4019889 pressure switch is an essential pneumatic control component that delivers precise and reliable pressure control for various tools and equipment. Its robust construction, adjustable pressure range, easy-to-read gauge, and compatibility with various wiring configurations make it a versatile and indispensable addition to any workshop or industrial setting.
The Posi-Flate 4019889 pressure switch is a pneumatic device used to control the inflation or deflation of tires or other applications where pressure needs to be regulated. Here are some potential pros and cons of buying this pressure switch.
Pros:1. Durable Construction: The Posi-Flate 4019889 pressure switch is made of heavy-duty materials, including brass body and stainless steel components, ensuring long-lasting performance.
2. Versatile Application: This pressure switch can be used in various applications, including tire inflation, air compressors, and other industrial processes, making it a versatile investment.
3. Easy Installation: The Posi-Flate 4019889 pressure switch comes with clear instructions and simple wiring requirements, making it easy to install and use.
4. Adjustable Pressure Setting: The pressure switch allows users to adjust the inflation or deflation pressure to meet their specific requirements, ensuring accurate and efficient operation.
5. Safety Feature: The Posi-Flate 4019889 pressure switch includes a safety feature that shuts off the air supply when the desired pressure is reached, preventing over-inflation and potential damage to tires or equipment.
Cons:1. Expensive: The Posi-Flate 4019889 pressure switch is more expensive than some other pressure switches on the market.
2. Requires Specific Wiring: The pressure switch requires specific wiring arrangements to function correctly, which may require additional time and effort during installation.
3. May Need Adjustments: Depending on the specific application, the pressure switch may require frequent adjustments to maintain the desired pressure level, which can be time-consuming.
Conclusion:The Posi-Flate 4019889 pressure switch is a high-quality, durable, and versatile device that can be used in various applications. While it may be more expensive than some other options, its long-lasting performance, adjustable pressure setting, and safety feature make it a worthwhile investment for those who require precise and efficient pressure control.
Recommendation:If you need a reliable and versatile pressure switch for your industrial or automotive applications, the Posi-Flate 4019889 pressure switch is a solid choice. Its heavy-duty construction, adjustable pressure setting, and safety feature make it a worthwhile investment, despite its higher cost compared to some other options. However, be sure to carefully review the wiring requirements and consider the potential need for frequent adjustments before making the purchase.
Details:
Posi-flate 4019889 pressure switch. Ryan MRI sells factory new and pre-owned surplus products develops channels to purchase such product.
specifications indusswitch:
- brand: Posi-flate
- mpn: 4019889
- type: Null
- item height: 8.27
- item length: 7.09
- item width: 6.30
seller indusswitch:
- rating: 99.6%
- # reviews: 363
- city: dover,
offer indusswitch:
- best offers: true
- availability: in stock
- options: ship-to-home
- started: january 7, 2026
- sold #: 10
- prices: $24.95–$41.00
- item condition:
- New – Open box
- New
- Used
- in stock #: 3
general indusswitch:
- category: Business & Industrial > Electrical Equipment Supplies > Pressure Switches
returns indusswitch:
- paid by: buyer
- time: 30 days
- policy: returns accepted
- method: money back
payments indusswitch:
- wallet: paypal
- credit card: mastercard
- other
shipping indusswitch:
- transit: 2-5 days
- service: fedex express saver, fedex standard overnight
- type: fixed
- carrier: fedex
- class: expedited, one-day
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