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FS5-3/4 Mcdonnell & Miller 3/4 in NPT SPDT Snap Liquid Flow Switch

SKU: FS5-3/4

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  • Connection Size: 3/4 FNPT
  • Voltage: 120/240VAC
  • Max. Pressure: 150 psi
  • For Pipe Size: 3/4 in
  • Wetted Materials: Brass, BUNA, EPDM
  • Max. Pressure (PSI): 150 psi

Specifications

Part Number FS5-3/4
Brand Mcdonnell & Miller
Connection Size 3/4 FNPT
Switch Type SPDT
Voltage 120/240VAC
Max. Pressure 150 psi
Max. Flow GPM 15 gpm
Overall Length 3.2 in
For Pipe Size 3/4 in
Overall Height 5.1 in
Item Liquid Flow Switch
Wetted Materials Brass, BUNA, EPDM
Max. Pressure (PSI) 150 psi
Min. Flow Rate (GPM) 1.5 gpm
Type General Purpose
Min. Fluid Temp. (F) 32 Degrees F
Application Alarms, Automatic Burners and Metering Devices, Motors, Signal Lights
Min. Ambient Temp. (F) 32 Degrees
Switch Enclosure NEMA 1
Float Switch Contact Form SPDT
Max. Fluid Temp. (F) 250 Degrees F
Flow Rate - Minimum 1.5 gpm
Set Point Configuration Adjustable
Media Temperature - Maximum 250 Degrees F
Housing Material Brass
Flow Rate - Maximum 1.5 gpm
Wetted Material Brass, Buna-N, EPDM
Ambient Temperature - Maximum 250 Degrees F
Ambient Temperature - Minimum 32 Degrees F
Contact Rating (AC) 22.2 A @ 240V (Locked Rotor), 3.7 A @ 240V (Full Load), 44.4 A @ 120V (Locked Rotor), 7.4 A @ 120V (Full Load)
Media Temperature - Minimum 32 Degrees F
Connection Type NPT

Description

The McDonnell & Miller FS5-3/4 is a liquid flow switch. This SPDT snap-action switch detects the presence or absence of liquid flow in a pipe, activating or deactivating electrical circuits at a set flow rate. It is rated for 120/240VAC, a maximum pressure of 150 psi, and a maximum flow of 15 gpm, with wetted materials of brass, BUNA, and EPDM.

Shipping This item ships to USA

Processing Time:

All orders at Pro Replacement Parts are processed and shipped within 1-2 business days. For orders placed before 12 PM EST, we offer same-day shipping whenever possible. We aim to ensure that your order reaches you as quickly as possible.

Delivery Timeframe:

Most orders are delivered within 3–5 business days via UPS Ground. This is an estimated delivery timeframe, not a guarantee. Timing can vary by product availability, destination, holidays, weather, and carrier delays. Freight shipments may take longer.

Expedited Shipping:

UPS 2nd Day Air is available for eligible orders at checkout. Rates and estimated delivery dates are calculated at checkout. Two-business-day transit begins after shipment; processing time still applies.

Shipping Methods:

  • Items exceeding 50” in width or 70 lbs in weight are shipped via Freight Carrier. You will be contacted by the carrier to schedule a delivery time.
  • Items under 50” in width and 70 lbs in weight will be shipped via UPS or FedEx as a small package service.

Freight Shipments:

Freight shipments are delivered curbside in residential areas. You may need assistance to move the package indoors, or you can unbox the shipment and carry each piece inside individually. While some drivers may help move a shipment into a garage or carport, this is not guaranteed. For Inside Delivery requests, please contact us at the time of your order (additional fees apply). Email: support@proreplacementparts.com

Inspection and Damage:

Upon delivery, please inspect the carton and contents for any damage. If you find any damage, document it on the driver's delivery receipt and contact us immediately at support@proreplacementparts.com no later than 24 hours from the delivery time. We cannot accept responsibility for damage that is not noted on the driver's delivery receipt at the time of delivery.

Order Cancellations:

All order cancellations must be requested within 24 hours of placing the order. After this period, our standard return policy will take effect.

Thank you for choosing Pro Replacement Parts. We are dedicated to providing you with the best service and ensuring your orders are delivered in a timely and efficient manner. If you have any questions or need further assistance, please don't hesitate to contact us.

Wide Selection of Brands: At our store, you'll find an extensive range of electric motors from top brands in the industry. We carefully select our inventory to ensure that you have access to the best and most reliable products on the market. Whether you need a motor for an industrial machine, a household appliance, or a specialized project, we have something for everyone.

Customer-Centric Service: We believe in putting our customers first. Our team is committed to providing you with personalized service and support throughout your buying journey. From helping you choose the right motor for your needs to answering any queries you have after purchase, we're here to assist you every step of the way.

Competitive Pricing: We strive to offer our high-quality electric motors at competitive prices. Our goal is to provide you with the best value, ensuring that you get a top-performing motor without breaking the bank. Plus, our regular deals and promotions mean that you can save even more when you shop with us.

Reliable Shipping and Handling: While we don't offer same-day shipping, we understand the importance of timely delivery. That's why we work with reliable shipping partners to ensure that your order is processed, shipped, and delivered efficiently. You can trust us to get your electric motor to you in excellent condition and within a reasonable timeframe.

Knowledgeable Support: Our team is knowledgeable about the wide range of electric motors we offer. We can provide you with detailed information and specifications for each product, helping you make an informed decision. If you have any questions or need advice, our experts are just a call or email away.

Your purchase is covered by the Manufacturer’s Limited Warranty.

For return/refund information, please visit our Returns & Refunds page.

Description

  • Connection Size: 3/4 FNPT
  • Voltage: 120/240VAC
  • Max. Pressure: 150 psi
  • For Pipe Size: 3/4 in
  • Wetted Materials: Brass, BUNA, EPDM
  • Max. Pressure (PSI): 150 psi

Specifications

Part Number FS5-3/4
Brand Mcdonnell & Miller
Connection Size 3/4 FNPT
Switch Type SPDT
Voltage 120/240VAC
Max. Pressure 150 psi
Max. Flow GPM 15 gpm
Overall Length 3.2 in
For Pipe Size 3/4 in
Overall Height 5.1 in
Item Liquid Flow Switch
Wetted Materials Brass, BUNA, EPDM
Max. Pressure (PSI) 150 psi
Min. Flow Rate (GPM) 1.5 gpm
Type General Purpose
Min. Fluid Temp. (F) 32 Degrees F
Application Alarms, Automatic Burners and Metering Devices, Motors, Signal Lights
Min. Ambient Temp. (F) 32 Degrees
Switch Enclosure NEMA 1
Float Switch Contact Form SPDT
Max. Fluid Temp. (F) 250 Degrees F
Flow Rate - Minimum 1.5 gpm
Set Point Configuration Adjustable
Media Temperature - Maximum 250 Degrees F
Housing Material Brass
Flow Rate - Maximum 1.5 gpm
Wetted Material Brass, Buna-N, EPDM
Ambient Temperature - Maximum 250 Degrees F
Ambient Temperature - Minimum 32 Degrees F
Contact Rating (AC) 22.2 A @ 240V (Locked Rotor), 3.7 A @ 240V (Full Load), 44.4 A @ 120V (Locked Rotor), 7.4 A @ 120V (Full Load)
Media Temperature - Minimum 32 Degrees F
Connection Type NPT

Description

The McDonnell & Miller FS5-3/4 is a liquid flow switch. This SPDT snap-action switch detects the presence or absence of liquid flow in a pipe, activating or deactivating electrical circuits at a set flow rate. It is rated for 120/240VAC, a maximum pressure of 150 psi, and a maximum flow of 15 gpm, with wetted materials of brass, BUNA, and EPDM.

Shipping

Shipping This item ships to USA

Processing Time:

All orders at Pro Replacement Parts are processed and shipped within 1-2 business days. For orders placed before 12 PM EST, we offer same-day shipping whenever possible. We aim to ensure that your order reaches you as quickly as possible.

Delivery Timeframe:

Most orders are delivered within 3–5 business days via UPS Ground. This is an estimated delivery timeframe, not a guarantee. Timing can vary by product availability, destination, holidays, weather, and carrier delays. Freight shipments may take longer.

Expedited Shipping:

UPS 2nd Day Air is available for eligible orders at checkout. Rates and estimated delivery dates are calculated at checkout. Two-business-day transit begins after shipment; processing time still applies.

Shipping Methods:

  • Items exceeding 50” in width or 70 lbs in weight are shipped via Freight Carrier. You will be contacted by the carrier to schedule a delivery time.
  • Items under 50” in width and 70 lbs in weight will be shipped via UPS or FedEx as a small package service.

Freight Shipments:

Freight shipments are delivered curbside in residential areas. You may need assistance to move the package indoors, or you can unbox the shipment and carry each piece inside individually. While some drivers may help move a shipment into a garage or carport, this is not guaranteed. For Inside Delivery requests, please contact us at the time of your order (additional fees apply). Email: support@proreplacementparts.com

Inspection and Damage:

Upon delivery, please inspect the carton and contents for any damage. If you find any damage, document it on the driver's delivery receipt and contact us immediately at support@proreplacementparts.com no later than 24 hours from the delivery time. We cannot accept responsibility for damage that is not noted on the driver's delivery receipt at the time of delivery.

Order Cancellations:

All order cancellations must be requested within 24 hours of placing the order. After this period, our standard return policy will take effect.

Thank you for choosing Pro Replacement Parts. We are dedicated to providing you with the best service and ensuring your orders are delivered in a timely and efficient manner. If you have any questions or need further assistance, please don't hesitate to contact us.

Why Buy From Us?

Wide Selection of Brands: At our store, you'll find an extensive range of electric motors from top brands in the industry. We carefully select our inventory to ensure that you have access to the best and most reliable products on the market. Whether you need a motor for an industrial machine, a household appliance, or a specialized project, we have something for everyone.

Customer-Centric Service: We believe in putting our customers first. Our team is committed to providing you with personalized service and support throughout your buying journey. From helping you choose the right motor for your needs to answering any queries you have after purchase, we're here to assist you every step of the way.

Competitive Pricing: We strive to offer our high-quality electric motors at competitive prices. Our goal is to provide you with the best value, ensuring that you get a top-performing motor without breaking the bank. Plus, our regular deals and promotions mean that you can save even more when you shop with us.

Reliable Shipping and Handling: While we don't offer same-day shipping, we understand the importance of timely delivery. That's why we work with reliable shipping partners to ensure that your order is processed, shipped, and delivered efficiently. You can trust us to get your electric motor to you in excellent condition and within a reasonable timeframe.

Knowledgeable Support: Our team is knowledgeable about the wide range of electric motors we offer. We can provide you with detailed information and specifications for each product, helping you make an informed decision. If you have any questions or need advice, our experts are just a call or email away.

Warranty/Returns

Your purchase is covered by the Manufacturer’s Limited Warranty.

For return/refund information, please visit our Returns & Refunds page.

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