McDonnell & Miller FS4-3 General Purpose Liquid Flow Switch
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McDonnell & Miller FS4-3 General Purpose Liquid Flow Switch
Used for starting or stopping electrically operated equipment. Sealed Monel Bellow. Four stainless steel paddles included: 1, 2, 3 & 6.
McDonnell & Miller FS4-3 General Purpose Liquid Flow Switch
Artikelnr.: 402234

McDonnell & Miller FS4-3 General Purpose Liquid Flow Switch

Artikelnr.: 402234

€ 221

Price Details

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*All items will import from USA

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Bestellen Sie jetzt und erhalten Sie es am Dienstag, August 11
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Used for starting or stopping electrically operated equipment. Sealed Monel Bellow. Four stainless steel paddles included: 1, 2, 3 & 6.
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Note: Step Down Voltage Transformer required for using electronics products of USA store (110-120). Recommended power converters Jetzt kaufen.

Besondere Merkmale

Reliable Performance
Ensures consistent operation by accurately detecting liquid flow rates, preventing potential system failures and maintaining efficient process control across various applications.
Vielseitige Kompatibilität
Designed to work seamlessly with multiple liquids, making it suitable for diverse industrial applications while reducing the need for various switches.
Haltbare Konstruktion
Built with high-quality materials that withstand tough environments, providing long-lasting durability and reducing maintenance costs over time.

Produktdetails

Get the McDonnell & Miller FS4-3 General Purpose Liquid Flow Switch at Ubuy Germany. Perfect for electrically operated equipment. Shop now!
Paketgewicht2.16 Pound

Für wen ist das Produkt geeignet?

Suitable For
  • HVAC Systems

    Ideal for HVAC professionals needing reliable flow detection to optimize system performance and prevent equipment damage.

  • Industrial Applications

    Well-suited for various industrial processes where liquid flow monitoring is crucial for operational efficiency and safety.

  • Water Treatment

    Effective for water treatment facilities requiring precise flow measurement to ensure proper chemical dosing and system integrity.

Not Suitable For
  • High Viscosity Fluids

    Not suitable for fluids with high viscosity that could impede the functionality of the flow switch.

PRODUKTBESCHREIBUNG

McDonnell & Miller FS4-3 General Purpose Liquid Flow Switch

Haben Sie eine Frage? Mit uns chatten

Kunden Fragen und Antworten

  • Frage: What is the McDonnell & Miller FS4-3 General Purpose Liquid Flow Switch used for?

    Antworten: The McDonnell & Miller FS4-3 Liquid Flow Switch is designed for monitoring liquid flow in a variety of applications. It triggers alarms or controls equipment when the flow rate drops below a predetermined threshold, making it vital for systems that require precise liquid management. Industries such as HVAC, water treatment, and boiler systems frequently utilize this device to ensure proper functionality and prevent damage caused by inadequate flow.
  • Frage: What types of liquids can the McDonnell & Miller FS4-3 accommodate?

    Antworten: The FS4-3 is suitable for use with water and various other non-corrosive liquids. Using it in applications with fluids that match its compatibility specifications is essential to ensure safe and effective operation. It is commonly used in cooling towers, boilers, and industrial processes where monitoring of liquid flow is critical.
  • Frage: How does the McDonnell & Miller FS4-3 work?

    Antworten: The FS4-3 operates using a paddle that detects liquid flow within a pipeline. When the flow rate is adequate, the paddle remains in a designated position, keeping the electrical contacts closed. If the flow diminishes below a set level, the paddle moves, opening the contacts and triggering alarms or control actions. This simple yet effective mechanism provides real-time monitoring and enhances operational safety.
  • Frage: Can the FS4-3 be used in outdoor applications?

    Antworten: Yes, the McDonnell & Miller FS4-3 can be installed outdoors if it is properly housed in a weatherproof enclosure. This ensures protection from environmental elements, prolonging its lifespan and maintaining its reliability. Common applications include outdoor cooling systems and irrigation setups, where monitoring flow is crucial for system efficiency.
  • Frage: What is the fitting size for the FS4-3 Liquid Flow Switch?

    Antworten: The FS4-3 features a standard 3/4-inch NPT (National Pipe Thread) fitting size. This compatibility allows for easy integration into existing pipework systems without the need for specialized adapters. Its universal fitting makes it ideal for various industrial and commercial applications requiring straightforward installation.
  • Frage: Is the FS4-3 adjustable for different flow rates?

    Antworten: Yes, the McDonnell & Miller FS4-3 allows for adjustable settings to cater to different flow rates. The adjustment process is straightforward, typically involving a screw mechanism that you can calibrate to meet specific operational needs. This enables users to customize the switch for particular systems, ensuring efficient operation based on varying flow requirements.
  • Frage: What safety features does the FS4-3 provide?

    Antworten: The FS4-3 includes several safety features designed to prevent equipment damage and ensure reliable operation. These features include automatic shut-off control for essential systems and alarm outputs that alert operators when flow levels are insufficient. This makes it a valuable component in safeguarding sensitive equipment like pumps and boilers from potential failures.
  • Frage: How do I install the McDonnell & Miller FS4-3?

    Antworten: Installation of the FS4-3 involves connecting it into the pipeline at the desired location. It is crucial to follow manufacturer instructions, ensuring that the flow switch is oriented correctly according to the flow direction. Tools required include basic plumbing tools for cutting and sealing. Proper installation minimizes leaks and maintains the efficiency of the liquid monitoring system.
  • Frage: Where can I buy the McDonnell & Miller FS4-3 General Purpose Liquid Flow Switch?

    Antworten: You can purchase the McDonnell & Miller FS4-3 General Purpose Liquid Flow Switch from Ubuy. Ubuy provides a convenient platform to explore, select, and acquire the FS4-3, ensuring a seamless shopping experience. With product information and details readily available, you can make informed decisions for your liquid flow monitoring needs.

Mcdonnell&Miller Flow Switches Editorial Review

The 3/4" Water Flow Switch is an essential component that has become popular among commercial water heaters and boilers. The switch is quite sensitive, so it should be installed at a distance of 1/2" to 1" from the bottom of the water flow. When installed correctly, it works great and saves time. The product is highly efficient, with a 120VAC switch rating of 7.4 Full Load Amps and 240VAC is 3.7 Full Load Amp. The pricing is competitive, and the switch has a long lifespan of 5-7 years, especially in areas with very hard water.

Kundenbewertungen

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Vorteile

  • Highly efficient
  • Gutes Preis-Leistungs-Verhältnis
  • Einfach zu installieren
  • Works great when installed correctly

Nachteile

  • Sensitive, and can trip if not installed at the correct distance from the bottom of the water flow.

Platform Trust & Buyer Confidence

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Mohammad
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“Excellent quality and original too,when ubuy send original things I will appreciate that ,I very satisfied thank you”

23 July 2026 · via Trustpilot
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“The order and delivery progress was communicated very well. Package arrived within the estimated time. Products arrived as expected in good condition.”

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“Good supply of products. Safe payment methods, and shipment worldwide! Genuine products.”

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“Was my first time buying a product from Ubuy, but I found it so helpful. This is reliable. Gonna place a new order!”

22 July 2026 · via Trustpilot
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23 July 2026 · via Trustpilot
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Wichtige Information

  • Einschränkungen: Für international versandte Produkte beachten Sie bitte, dass jegliche Herstellergarantie nicht gültig sein könnte; Herstellerservice-Optionen nicht verfügbar sein könnten; Produkthandbücher, Gebrauchsanleitungen und Sicherheitshinweise nicht in der Sprache des Ziellandes verfasst sein könnten; die Produkte (und Begleitmaterialien) könnten nicht im Einklang mit den Standards, Spezifizierungen und Etikettierungsvorgaben des Ziellandes entworfen sein; und die Produkte könnten nicht der Voltzahl und anderen elektrischen Standards des Ziellandes entsprechen (weshalb, falls zutreffend, die Verwendung eines Adapters oder Umwandlers erforderlich sein könnte). Der Empfänger ist dafür verantwortlich sicherzustellen, dass das Produkt legal in das Zielland importiert werden kann. Bei der Bestellung von Ubuy oder seinen Partnern ist der Empfänger der eingetragene Importeur und muss sich an alle Gesetze und Regulierungen des Ziellandes halten.
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€ 221

Bestellen Sie jetzt und erhalten Sie es am Dienstag, August 11

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PCI DSS compliant and ISO 27001:2022 certified, with encrypted payments and full buyer protection on every order.

Unsere besten Logistigpartner
  • fedex
  • dhl
Schnellste grenzüberschreitende Lieferung

Merkmale und Vorteile

  • For starting or stopping electrically operated equipment
  • Sealed Monel Bellow
  • Sensitivity adjusting screw makes flow adjustment easy
  • Four stainless steel paddles included: 1, 2, 3 & 6.

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