Flow Switches

We stock flow switches designed to detect the presence or absence of flow in hydronic systems and provide reliable on/off control for pumps, boilers, and other equipment.

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MM FS4-3 Image

MM FS4-3

General Purpose Flow Switch 1In NPT SPDT Nema 1 # 114400

  • 1 Size (In)
MM FS8-W Image

MM FS8-W

General Purpose Flow Switch 1In NPT SPDT Nema 4X # 120601

  • 1 Size (In)
JC F261KAH-V01C Image

JC F261KAH-V01C

Flow Switch SPDT Type 3R Nema Encl 1in Npt Conn w/1", 2", 3", & 6" Paddles

  • 1 Size (In)
JC F261MAH-V01C Image

JC F261MAH-V01C

Flow Switch SPDT Type 4 NEMA Encl 1in Npt Conn w/1", 2", 3", & 6" Paddles

  • 1 Size (In)
MM FS5-3/4 Image

MM FS5-3/4

Flow Switch 3/4 In line # 114760

  • 3/4 Size (In)
MM FS5-1 Image

MM FS5-1

Flow Switch 1 In line # 114780

  • 1 Size (In)
MM FS4-3RP-T Image

MM FS4-3RP-T

Flow Switch SPDT Nema 1 Reinforced Paddles, 20 Sec.Time Delay # 114639

  • 1 Size (In)
MM FS1 Image

MM FS1

Flow Switch 1/2 In Line High Sensitivity # 113200

  • 1/2 Size (In)
MM FS7-4 Image

MM FS7-4

Industrial Flow Switch 1 1/4 In NPT SPDT Nema 1 # 119700

  • 1 1/4 Size (In)
MM FS4-3D Image

MM FS4-3D

General Purpose Flow Switch 1In NPT (2) SPDT Nema 1 # 114500

  • 1 Size (In)
MM FS7-4W Image

MM FS7-4W

Industrial Flow Switch 1 1/4 In NPT SPDT Nema 4 # 120201

  • 1 1/4 Size (In)
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