McDonnell & Miller FS4-3 General Purpose Liquid Flow Switch
McDonnell & Miller FS4-3 General Purpose Liquid Flow Switch
McDonnell & Miller FS4-3 General Purpose Liquid Flow Switch
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McDonnell & Miller FS4-3 General Purpose Liquid Flow Switch
McDonnell & Miller FS4-3 General Purpose Liquid Flow Switch
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
商品＃: 402234

McDonnell & Miller FS4-3 General Purpose Liquid Flow Switch

商品＃: 402234

JPY 40190

価格の詳細

Excluding Shipping & Custom charges ( Shipping and custom charges will be calculated on checkout )

*All items will import from アメリカ

在庫あり
アメリカ USA ストアからの輸入品

数量：

在庫は残り17点のみです。
今すぐ注文すると 頃に届きます 水曜日, 8月 05
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最高の物流パートナー
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  • dhl
Used for starting or stopping electrically operated equipment. Sealed Monel Bellow. Four stainless steel paddles included: 1, 2, 3 & 6.
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この商品の利点

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

製品詳細

Get the McDonnell & Miller FS4-3 General Purpose Liquid Flow Switch at Ubuy 日本. Perfect for electrically operated equipment. Shop now!
  • For starting or stopping electrically operated equipment such as signal lights, alarms, motors, automatic burners, metering devices and others
  • 1" NPT
  • Minimum/maximum temperature: 32 degrees F/300 degrees F
  • Sensitivity adjusting screw makes flow adjustment easy
  • Four stainless steel paddles included: 1", 2", 3" & 6" (25, 50, 80, & 150mm)
Operation ModeOFF-NONE-ON
Current Rating50 A
Operating Voltage120 volts
Contact TypeNormally Open
Connector TypePlug In
Switch TypeKill Switch
TerminalThrough Hole
Circuit Type2-way
Mounting TypeWall Mount
Actuator TypePaddle
Number of Positions2
Lower Temperature Rating100 °F
Upper Temperature Rating100 °F
Control MethodTouch
Connectivity ProtocolX-10
Wattage851 watts
Control TypeOn/Off
Compatible DevicesSignal lights, alarms, motors, automatic burners, metering devices, and other electrically operated equipment
Colorblack
Item Dimensions10 x 10 x 10 inches (25.4 x 25.4 x 25.4 cm)
Unit Count1 Count
Number of Items1
Material TypePlastic
Contact MaterialBrass
International Protection RatingIP52
Specification MetEnergy Rating
Brand NameMcdonnell & Miller
Model114400
ManufacturerMcDonnell & Miller
UPC751875000274
Included ComponentsItem
Part NumberFS4-3
BrandMcdonnell-AND-Miller
MaterialPlastic
Item dimensions L x W x H10 x 10 x 10 inches (25.4 x 25.4 x 25.4 cm)
Package Weight2.16 Pound

同梱内容

Item

どんな人にお勧めですか？

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.

製品説明書

何か質問はありますか？ チャットでお問い合わせください

お客様からの質問と回答

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

    回答: 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.
  • 質問: What types of liquids can the McDonnell & Miller FS4-3 accommodate?

    回答: 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.
  • 質問: How does the McDonnell & Miller FS4-3 work?

    回答: 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.
  • 質問: Can the FS4-3 be used in outdoor applications?

    回答: 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.
  • 質問: What is the fitting size for the FS4-3 Liquid Flow Switch?

    回答: 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.
  • 質問: Is the FS4-3 adjustable for different flow rates?

    回答: 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.
  • 質問: What safety features does the FS4-3 provide?

    回答: 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.
  • 質問: How do I install the McDonnell & Miller FS4-3?

    回答: 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.
  • 質問: Where can I buy the McDonnell & Miller FS4-3 General Purpose Liquid Flow Switch?

    回答: 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.

お客様のレビュー＆評価

4.6
37 カスタマー評価
  • 5 星
    83%
  • 4 星
    11%
  • 3 星
    0%
  • 2 星
    0%
  • 1 星
    6%

この商品のレビュー

お考えをお聞かせください

長所

  • Highly efficient
  • Good value for money
  • Easy to install
  • Works great when installed correctly

短所

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

プラットフォームの信頼性とお客様の安心

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4.3/5 9200 + reviews
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MA
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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SAO JOHN
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“Ubuy is a great online platform to buy stuff. Reliable, fast delivery time and great value for money. I've been using Ubuy online shopping platform for three years now and will continue to do so.”

23 July 2026 · via Trustpilot
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JPY 40190

今すぐ注文すると 頃に届きます 水曜日, 8月 05

数量：

在庫は残り17点のみです。
安全な取引安全な取引

PCI DSS準拠・ISO 27001:2022認証取得。すべてのご注文に暗号化決済と充実したバイヤープロテクションが適用されます。

最高の物流パートナー
  • fedex
  • dhl
最速の国際配送

特徴と利点

  • 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.

Ubuyの安心保証

100％正規品、PCI DSS準拠の決済セキュリティ、ISO 27001認証のデータ保護、最速の国際配送、無料返品※、安全な梱包をすべてのご注文でお届けします。