
FSJ-1 Comparison
| photo | price | summary | rating |
|---|---|---|---|
![]() | $250.00 | Condition is New – Open box, NEW Mcdonnell & Miller FSJ-1 Flow Switch 115/230V 1/2 100PSI FAST SHIPPING, FREE SHIPPING | 100.0% |

The McDonnell Miller FSJ-1 Flow Switch is an essential device for monitoring and controlling fluid flow in various industrial applications. This flow switch, specifically designed for use with 115/230V power supplies and a working pressure of up to 100 psi, is manufactured by McDonnell Miller, a trusted name in the industry known for its high-performance flow measurement solutions.
The FSJ-1 Flow Switch is a reliable and accurate device that uses a magnetic probe to detect the presence or absence of flowing fluid. When fluid flows across the probe, the magnetic field is disrupted, triggering an electrical signal that activates an output relay. This signal can be used to actuate alarms, valves, or other equipment, allowing for automatic response to flow conditions.
The flow switch is designed with a rugged, corrosion-resistant housing, making it suitable for use in harsh industrial environments. Its compact size and lightweight design make it easy to install and integrate into a wide range of applications. The unit features a clear, easy-to-read LED indicator that shows the status of the flow switch, with a green light indicating normal flow and a red light indicating no flow.
The McDonnell Miller FSJ-1 Flow Switch is a versatile and reliable solution for monitoring and controlling fluid flow in a variety of industries, including water and wastewater treatment, oil and gas production, and chemical processing. Its robust design, accurate sensing capabilities, and ease of installation make it an essential tool for maintaining efficient and safe operations in industrial applications.
Pros and Cons of Buying McDonnell Miller FSJ-1 Flow Switch (115/230V, 1/2, 100psi)
1. **Reliability and Durability:** McDonnell Miller is a reputable brand known for manufacturing high-quality flow switches. The FSJ-1 model is designed to handle a pressure range of up to 100psi, making it suitable for various industrial applications. It is built with durable materials and is resistant to corrosion, ensuring long-lasting performance.
2. **Versatility:** The McDonnell Miller FSJ-1 flow switch is available in both 115V and 230V power options, catering to different voltage requirements. It is also available in various sizes and configurations to fit various flow conditions and applications.
3. **Easy Installation:** The flow switch features a simple design and straightforward installation process. It comes with clear instructions and mounting hardware, making it easy to install and set up.
4. **Adjustable Flow Rate:** The McDonnell Miller FSJ-1 flow switch comes with an adjustable flow rate feature, allowing users to fine-tune the switch to meet their specific application requirements.
5. **Accurate and Reliable Switching:** The flow switch is designed to provide accurate and reliable switching, ensuring that users are notified when their process conditions reach a certain threshold.
6. **Cost-effective:** Compared to other flow switch brands, the McDonnell Miller FSJ-1 flow switch is relatively affordable, making it a cost-effective solution for various industrial applications.
7. **Limited Customization:** The McDonnell Miller FSJ-1 flow switch comes with limited customization options, and users may need to purchase additional accessories or modifications to meet specific application requirements.
8. **Requires Regular Maintenance:** Like any industrial equipment, the McDonnell Miller FSJ-1 flow switch requires regular maintenance to ensure optimal performance. This may include cleaning, lubrication, and calibration.
9. **Limited Warranty:** The McDonnell Miller FSJ-1 flow switch comes with a limited warranty, which may not cover all potential issues or damages. Users should carefully review the warranty terms to understand what is covered and what is not.
Conclusion:The McDonnell Miller FSJ-1 flow switch offers several advantages, including reliability, durability, versatility, easy installation, adjustable flow rate, accuracy, and cost-effectiveness. However, it also has some limitations, such as limited customization, the need for regular maintenance, and a limited warranty.
Recommendation:Based on the pros and cons, the McDonnell Miller FSJ-1 flow switch is a recommended option for users who require a reliable, durable, and cost-effective flow switch for various industrial applications. It offers accurate and reliable switching and is available in different voltage options and sizes to cater to various flow conditions and applications. However, users should be aware of the need for regular maintenance and the limited customization options when considering this product.
Details:
New Mcdonnell Miller FSJ-1 flow switch 115/230v 1/2 100psi fast shipping new unused factory parts crib surplus stock.
specifications indusswitch:
- brand: Mcdonnell Miller
- mpn: Fsj-1
- part type: Flow Switch
- fuse type: Switch
offer indusswitch:
- availability: in stock
- sold #: 16
- best offers: true
- in stock #: 1
- options: ship-to-home
- price: $250.00
- item condition: New – Open box
- started: may 24, 2025
general indusswitch:
- category: Business & Industrial > Electrical Equipment Supplies > Pressure Switches
returns indusswitch:
- method: money back
- policy: returns accepted
- paid by: buyer
- time: 30 days
shipping indusswitch:
- class: expedited
- carrier: usps
- service: usps priority mail
- type: calculated
- transit: 5-10 days
seller indusswitch:
- city: midland, michigan
- # reviews: 5559
- rating: 100.0%
payments indusswitch:
- credit card: diners-club
- wallet: apple-pay
- other
