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Mcdonnell & Miller Series AF3 Air Flow Switches
Mcdonnell & MillerFlow Switches

Mcdonnell & Miller Series AF3 Air Flow Switches

Note: listed by manufacturer as obsolete/discontinued.

SKU 3G-OTH-02750

Merek
Mcdonnell & Miller
Item
Series AF3 Air Flow Switches
Kategori
Flow Switches
Tersedia untuk Dipesan
Stok tersedia & bea cukai ditangani
  • 6–10 business days door-to-door; Bea Cukai clearance typically 3–5 business days.
  • Invoicing in IDR or USD. Bank transfer and corporate PO accepted.
  • Dikirim ke: Jakarta, Surabaya, Bandung, Medan, Batam
Harga dagang sesuai penawaran — balasan dalam 24 jam
Jumlah
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Pengiriman ke Seluruh Dunia
Pengiriman udara & laut
Lembar Data Atas Permintaan
Spesifikasi teknis
Penawaran 1 Hari
Balasan dalam 24 jam

Local availability & support — Indonesia

Phone
+65 8878 8355

Dokumen Teknis

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Ajukan pertanyaan

Mcdonnell & Miller Produk
3G Electric (S) Pte. Ltd. — Singapore

Deskripsi Produk

Note: listed by manufacturer as obsolete/discontinued.

Supplied to Indonesia — compatible with 50 Hz installations. DHL Express delivery to Jakarta, Surabaya, Bandung, customs and duties handled door-to-door.

Pertanyaan yang Sering Diajukan

What is the McDonnell & Miller AF3 flow switch used for?

The McDonnell & Miller AF3 is a general-purpose low-velocity flow switch designed for applications where an economical switch is needed. It is commonly used in HVAC, water treatment, and industrial piping systems to detect flow or no-flow conditions in ducts or pipes of 8 inches (203 mm) minimum size.

What are the specifications of the McDonnell & Miller AF3 flow switch?

The AF3 flow switch features a paddle that fits a minimum duct size of 8 inches (203 mm). It is designed for low-velocity applications and includes two electrical connections. Note that the manufacturer lists this model as obsolete or discontinued, so availability may be limited.

Where to buy the McDonnell & Miller AF3 flow switch in Singapore?

You can source the McDonnell & Miller AF3 flow switch through 3G Electric in Singapore. We handle logistics, customs clearance, and delivery to your facility. Contact us for current pricing and lead time, as this model is listed as discontinued by the manufacturer.

How to install the McDonnell & Miller AF3 flow switch?

Install the AF3 flow switch in a horizontal pipe section with the paddle oriented correctly for flow direction. Ensure the minimum duct size of 8 inches (203 mm) is met. Follow standard wiring practices for the two electrical connections and verify proper operation after installation. Consult the manufacturer's manual for specific torque and clearance requirements.

Digunakan dalam

Aplikasi umum untuk Mcdonnell & Miller
Steam boiler low-water cutoff — McDonnell & Miller inline flow switches (e.g., FS-1) for automatic burner shutdown
Cooling water flow monitoring — McDonnell & Miller insertion-style switches (e.g., FS4-3D) in large-diameter pipes
Hazardous-area process lines — McDonnell & Miller FS7-4E with NEMA 7/9 enclosure for Class I, Div 1 locations
HVAC chilled water systems — McDonnell & Miller FS6-1 inline switch for pump flow verification
Industrial wastewater treatment — McDonnell & Miller FS4-3S stainless steel switch for corrosive fluid flow detection
Boiler feedwater control — McDonnell & Miller FS8-WJ with BSP connections for international installations

Mcdonnell & Miller Produk

3G Electric memasok Mcdonnell & Miller flow switches. Kami menyediakan produk asli dengan ketersediaan tersedia di gudang untuk SKU umum, dokumentasi teknis, dukungan commissioning, dan layanan garansi — di seluruh dunia.

Anda mungkin juga membutuhkan

Pembakar & Pembakaran →Pompa & Kompresor →Suku Cadang →Semua Produk →

Compatible alternatives & equivalents

Cross-referenced by specification & description
For general purpose applications with medium and high velocity requirements Paddle fits 8 (203mm) minimum duct size, or 6 (152mm) if trimmed Brass
McDonnell & Miller
For general purpose applications with medium and high velocity requirements Paddle fits 8 (203mm) minimum duct size, or 6 (152mm) if trimmed Brass
In-line configuration eliminates need for a pipe tee Sizes available 3 4 NPT 1 NPT Paddles available for low, medium or high flow Two electrical
McDonnell & Miller
In-line configuration eliminates need for a pipe tee Sizes available 3 4 NPT 1 NPT Paddles available for low, medium or high flow Two electrical
Paddle-type flow switch for liquid systems, installed inline in 1-inch pipes with a 1-inch BSP connection. Rated 7.4 A at 120V AC full load. Used to detect liquid flow in piping systems for process control or alarm activation
McDonnell & Miller
Paddle-type flow switch for liquid systems, installed inline in 1-inch pipes with a 1-inch BSP connection. Rated 7.4 A at 120V AC full load. Used to detect liquid flow in piping systems for process control or alarm activation
Paddle-type flow switch for liquids, installed inline in 1-inch pipe systems. Detects flow or no-flow conditions for pump protection, boiler low-water cutoff, and cooling water monitoring. Features 1-inch NPT connection and AC contact rating of 3.7 A at 240V full load
McDonnell & Miller
Paddle-type flow switch for liquids, installed inline in 1-inch pipe systems. Detects flow or no-flow conditions for pump protection, boiler low-water cutoff, and cooling water monitoring. Features 1-inch NPT connection and AC contact rating of 3.7 A at 240V full load
1 NPT Two electrical knock-outs allows connection from either end Sensitivity adjusting screw makes flow adjustment easy Single pole, double throw snap
McDonnell & Miller
1 NPT Two electrical knock-outs allows connection from either end Sensitivity adjusting screw makes flow adjustment easy Single pole, double throw snap
This inline flow switch uses a paddle to detect liquid flow in 1-inch pipe systems. It features a 1-inch NPT connection and an AC contact rating of 22.2 A at 240V (locked rotor). Typical applications include pump protection, boiler low-water cutoff, and cooling water monitoring
McDonnell & Miller
This inline flow switch uses a paddle to detect liquid flow in 1-inch pipe systems. It features a 1-inch NPT connection and an AC contact rating of 22.2 A at 240V (locked rotor). Typical applications include pump protection, boiler low-water cutoff, and cooling water monitoring

Lainnya dari McDonnell & Miller

Lihat semua McDonnell & Miller suku cadang →
In-line configuration eliminates need for a pipe tee Very high flow capacity Actuates at extremely low flow rate Sizes available 3 4 NPT 1
McDonnell & Miller
In-line configuration eliminates need for a pipe tee Very high flow capacity Actuates at extremely low flow rate Sizes available 3 4 NPT 1
In-line configuration eliminates need for a pipe tee Very high flow capacity Actuates at extremely low flow rate Sizes available 3 4 NPT 1
McDonnell & Miller
In-line configuration eliminates need for a pipe tee Very high flow capacity Actuates at extremely low flow rate Sizes available 3 4 NPT 1
1 1 4 NPT Brass with sealed tube construction Single pole, double throw snap switch Magnetic switching mechanism eliminates need for
McDonnell & Miller
1 1 4 NPT Brass with sealed tube construction Single pole, double throw snap switch Magnetic switching mechanism eliminates need for
Sealed Monel bellows Single pole, double throw snap switch Four stainless steel paddles included 1, 2, 3 and 6 (25, 50, 80
McDonnell & Miller
Sealed Monel bellows Single pole, double throw snap switch Four stainless steel paddles included 1, 2, 3 and 6 (25, 50, 80
1 NPT Connection Two electrical knock-outs allows connection from either end Sensitivity adjusting screw makes flow adjustment easy Single pole, double
McDonnell & Miller
1 NPT Connection Two electrical knock-outs allows connection from either end Sensitivity adjusting screw makes flow adjustment easy Single pole, double
For industrial hazardous environment applications requiring a NEMA 7 (Class I, Division I, Group C and D) or NEMA 9 (Class II, Division I, Group E, F, and G)
McDonnell & Miller
For industrial hazardous environment applications requiring a NEMA 7 (Class I, Division I, Group C and D) or NEMA 9 (Class II, Division I, Group E, F, and G)
In-line configuration eliminates need for a pipe tee Sizes available 3 4 NPT 1 NPT Materials of construction Brass, carbon EPDM elastomer
McDonnell & Miller
In-line configuration eliminates need for a pipe tee Sizes available 3 4 NPT 1 NPT Materials of construction Brass, carbon EPDM elastomer
Brass with sealed tube construction Single pole, double throw snap switch Magnetic switching mechanism eliminates need for bellows Sensitivity adjusting
McDonnell & Miller
Brass with sealed tube construction Single pole, double throw snap switch Magnetic switching mechanism eliminates need for bellows Sensitivity adjusting