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Artigo n.º:
402234
McDonnell & Miller FS4-3 General Purpose Liquid Flow Switch
Artigo n.º:
402234
MZN 16150
Detalhes do Preço
Excluding Shipping & Custom charges ( Shipping and custom charges will be calculated on checkout )
*All items will import from EUA
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Importado da loja USA
Qtd.:
Restam apenas 17 artigos em stock.
Encomende já e receba por volta de Quarta-feira, Agosto 05
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Os nossos principais Parceiros Logísticos
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 EUA store (110-120). Recommended power converters COMPRAR AGORA.
O que se Destaca
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.
Detalhes do produto
- 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 Mode | OFF-NONE-ON |
| Current Rating | 50 A |
| Operating Voltage | 120 volts |
| Contact Type | Normally Open |
| Connector Type | Plug In |
| Switch Type | Kill Switch |
| Terminal | Through Hole |
| Circuit Type | 2-way |
| Mounting Type | Wall Mount |
| Actuator Type | Paddle |
| Number of Positions | 2 |
| Lower Temperature Rating | 100 °F |
| Upper Temperature Rating | 100 °F |
| Control Method | Touch |
| Connectivity Protocol | X-10 |
| Wattage | 851 watts |
| Control Type | On/Off |
| Compatible Devices | Signal lights, alarms, motors, automatic burners, metering devices, and other electrically operated equipment |
| Color | black |
| Item Dimensions | 10 x 10 x 10 inches (25.4 x 25.4 x 25.4 cm) |
| Unit Count | 1 Count |
| Number of Items | 1 |
| Material Type | Plastic |
| Contact Material | Brass |
| International Protection Rating | IP52 |
| Specification Met | Energy Rating |
| Brand Name | Mcdonnell & Miller |
| Model | 114400 |
| Manufacturer | McDonnell & Miller |
| UPC | 751875000274 |
| Included Components | Item |
| Part Number | FS4-3 |
| Brand | Mcdonnell-AND-Miller |
| Material | Plastic |
| Item dimensions L x W x H | 10 x 10 x 10 inches (25.4 x 25.4 x 25.4 cm) |
| Package Weight | 2.16 Pound |
What's in the box
Item
Quem Deverá Comprar?
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HVAC Systems
Ideal for HVAC professionals needing reliable flow detection to optimize system performance and prevent equipment damage.
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Industrial Applications
Well-suited for various industrial processes where liquid flow monitoring is crucial for operational efficiency and safety.
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Water Treatment
Effective for water treatment facilities requiring precise flow measurement to ensure proper chemical dosing and system integrity.
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High Viscosity Fluids
Not suitable for fluids with high viscosity that could impede the functionality of the flow switch.
DESCRIÇÃO DO PRODUTO
Tem alguma Dúvida? Converse connosco
Perguntas e Respostas dos Clientes
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Pergunta:
What is the McDonnell & Miller FS4-3 General Purpose Liquid Flow Switch used for?
Resposta: 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. -
Pergunta:
What types of liquids can the McDonnell & Miller FS4-3 accommodate?
Resposta: 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. -
Pergunta:
How does the McDonnell & Miller FS4-3 work?
Resposta: 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. -
Pergunta:
Can the FS4-3 be used in outdoor applications?
Resposta: 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. -
Pergunta:
What is the fitting size for the FS4-3 Liquid Flow Switch?
Resposta: 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. -
Pergunta:
Is the FS4-3 adjustable for different flow rates?
Resposta: 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. -
Pergunta:
What safety features does the FS4-3 provide?
Resposta: 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. -
Pergunta:
How do I install the McDonnell & Miller FS4-3?
Resposta: 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. -
Pergunta:
Where can I buy the McDonnell & Miller FS4-3 General Purpose Liquid Flow Switch?
Resposta: 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.
Avaliações e Classificações dos Clientes
37 classificações de clientes
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5 Estrela
83%
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4 Estrela
11%
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3 Estrela
0%
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2 Estrela
0%
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1 Estrela
6%
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Prós
- Highly efficient
- Good value for money
- Easy to install
- Works great when installed correctly
Contras
- Sensitive, and can trip if not installed at the correct distance from the bottom of the water flow.
CONFIANÇA NA PLATAFORMA E SEGURANÇA DO COMPRADOR
MA
Mohammad
Comprador verificado
“Excellent quality and original too,when ubuy send original things I will appreciate that ,I very satisfied thank you”
23 July 2026 · via Trustpilot
CK
Chitra
Comprador verificado
“The order and delivery progress was communicated very well. Package arrived within the estimated time. Products arrived as expected in good condition.”
22-Jul-26 · via Trustpilot
K
kund
Comprador verificado
“Good supply of products. Safe payment methods, and shipment worldwide! Genuine products.”
23-Jul-26 · via Trustpilot
OO
Onesi
Comprador verificado
“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
SJ
SAO JOHN
Comprador verificado
“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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MZN 16150
Encomende já e receba por volta de Quarta-feira, Agosto 05
Este artigo não está restrito no meu país. (Clique no link acima se este artigo não estiver restrito no seu país, para que a nossa equipa o analise e permita.)
Qtd.:
Restam apenas 17 artigos em stock.
Transação segura
Em conformidade com a norma PCI DSS e com certificação ISO 27001:2022, com pagamentos encriptados e proteção total do comprador em todas as encomendas.
Os nossos principais Parceiros Logísticos
Entrega internacional mais rápida
Recursos e benefícios
- 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 Assurance
Experience worry-free shopping with 100% original products, PCI DSS-compliant payment security, ISO 27001-certified data protection, the fastest cross-border delivery, free returns *, and secure packaging on every order.