Cole-Parmer Datasheets for Flow Switches

Flow switches are devices that monitor flow and send a trip signal to other devices, like a pump, for protection. These switches can be used for the measurement of gases, liquids, and steam.
Flow Switches: Learn more

Product Name Notes
Flow Switch 3/4" NPT on 1" Pipe Tee, 1 GPM On / 0.8 GPM Off, 120 VAC -- GO-32617-66
Flow Switch 3/4" NPT on 1" Pipe Tee, 1 GPM On / 0.8 GPM Off, 240 VAC -- GO-32617-68
• Designed for pump control in various applications and pipe sizes<emdash>comes standard with multiple drag disks for expanded flow ranges • Can be used in isolated stand alone systems or...
Flow Switch for 1" to 3" Pipe, 5 to 330 GPM (19 to 1249 LPM) -- GO-32617-62
Flow Switch for 3 1/2" to 10" Pipe, 36 to 3600 GPM (136 to 13,627 LPM) -- GO-32617-64
• Designed for pump control in various applications and pipe sizes<emdash>comes standard with multiple drag disks for expanded flow ranges • Superior long term performance • Continuous adjustment while operating...
Flow Switch for 1 1/2" to 2 1/2" Pipe, 15 to 155 GPM (57 to 587 LPM) -- GO-32617-58
Flow Switch for 1" Pipe, 8 to 28 GPM (30 to 106 LPM) -- GO-32617-56
Flow Switch for 3" to 10" Pipe, 50 to 1900 GPM (189 to 7192 LPM) -- GO-32617-60
• Designed for pump control in various applications and pipe sizes<emdash>comes standard with multiple drag disks for expanded flow ranges • Wetted surfaces of Noryl®, 316 Stainless Steel, EPDM Elastomeric...
Flowline Thermal Flow Switch for Gases, Short PVDF Sensor -- GO-32756-02
Flowline Thermal Flow Switch for Liquids, Short PVDF Sensor -- GO-32756-10
FT10-1305 - Flowline Thermal Flow Switch for Liquids, Short PP/Ryton Sensor -- GO-32756-08
FT10-1405 - Flowline Thermal Flow Switch for Liquids, Long PP/Ryton Sensor -- GO-32756-12
FT10-5405 - Flowline Thermal Flow Switch for Liquids, Long PVDF Sensor -- GO-32756-14
GT10-1305 - Flowline Thermal Flow Switch for Gases, Short PP/Ryton Sensor -- GO-32756-00
GT10-1405 - Flowline Thermal Flow Switch for Gases, Long PP/Ryton Sensor -- GO-32756-04
GT10-5405 - Flowline Thermal Flow Switch for Gases, Long PVDF Sensor -- GO-32756-06
• Liquid switches are ideal for pump and process protection; gas switches for filter and process protection. • Sturdy sensor withstands high flow velocities. • Sensor, cable, and junction box...
Compact low-flow switch for gases; SPST normally open, 1 cfm/2.6 cfm -- GO-32778-32
Compact low-flow switch for gases; SPST normally open, 2.5 cfm/5.6 cfm -- GO-32778-34
Compact low-flow switch for gases; SPST normally open, 25 cfh/60 cfh -- GO-32778-30
Compact low-flow switch for gases; SPST normally open, 5 cfm/12 cfm -- GO-32778-36
Compact low-flow switch for liquids; SPST normally open, 0.05 GPM -- GO-32778-31
Compact low-flow switch for liquids; SPST normally open, 0.25 GPM -- GO-32778-33
Compact low-flow switch for liquids; SPST normally open, 0.5 GPM -- GO-32778-35
Compact low-flow switch for liquids; SPST normally open, 1.0 GPM -- GO-32778-37
Liquid flow switch with 90<deg> port; SPDT, 0.1 GPM -- GO-32775-00
Liquid flow switch with 90<deg> port; SPDT, 0.25 GPM -- GO-32775-01
Normally closed switch for liquids; 0.5 GPM -- GO-32776-20
Normally closed switch for liquids; 1.0 GPM -- GO-32776-21
Normally closed switch for liquids; 2.0 GPM -- GO-32776-22
Normally closed switch for liquids; 3.0 GPM -- GO-32776-40
Normally closed switch for liquids; 4.0 GPM -- GO-32776-42
Normally closed switch for liquids; 5.0 GPM -- GO-32776-44
Normally open flow switch for liquids; 0.5 GPM -- GO-32776-00
Normally open flow switch for liquids; 1.0 GPM -- GO-32776-01
Normally open flow switch for liquids; 2.0 GPM -- GO-32776-02
Normally open flow switch for liquids; 3.0 GPM -- GO-32776-03
Normally open flow switch for liquids; 4.0 GPM -- GO-32776-04
Normally open flow switch for liquids; 5.0 GPM -- GO-32776-05
Normally open SPST flow switch; 0.1 GPM (9/16"-18 UNF) -- GO-32774-00
Normally open SPST flow switch; 0.25 GPM -- GO-32774-02
Normally open SPST flow switch; 0.5 GPM (9/16"-18 UNF) -- GO-32774-04
Normally open SPST flow switch; 0.75 GPM -- GO-32774-06
Normally open SPST flow switch; 1.0 GPM (9/16"-18 UNF) -- GO-32774-08
Normally open SPST flow switch; 1.5 GPM (9/16"-18 UNF) -- GO-32774-10
Flow Switch
Adjustable Industrial Flow Switch for Liquids and Gases, 1/2" NPT(F) Connection -- GO-32929-24
Adjustable Industrial Flow Switch for Liquids and Gases, 1/4" NPT(F) Connection -- GO-32929-20
Adjustable Industrial Flow Switch for Liquids and Gases, 3/4" NPT(F) Connection -- GO-32929-26
Adjustable Industrial Flow Switch for Liquids and Gases, 3/8" NPT(F) Connection -- GO-32929-22
Industrial Flow Switches are normally closed (NC) but can be wired for normally open (NO). Typical applications include lubrication, process, fire control, and cooling systems; heat pumps; hydraulic lifts; and...
Adjustable Mini Low-Flow Switch for Liquids and Gases, Brass -- GO-32929-00
Adjustable Mini Low-Flow Switch for Liquids and Gases, PTFE -- GO-32929-02
Mini Low-Flow Switches are configured to open the SPST contact when flow goes beyond the set point or stops. Typical applications include gas/liquid sampling; chemical injection; pollution control monitoring; atmospheric...
Adjustable Standard Low-Flow Switch for Liquids and Gases, 3.0/500 cc/min, Brass -- GO-32929-10
Adjustable Standard Low-Flow Switch for Liquids and Gases, 3.0/500 cc/min, PTFE -- GO-32929-12
Adjustable Standard Low-Flow Switch for Liquids and Gases, 5.0/950 cc/min, Brass -- GO-32929-14
Adjustable Standard Low-Flow Switch for Liquids and Gases, 5.0/950 cc/min, PTFE -- GO-32929-16
Standard Low-Flow Switches are normally closed (NC) but can be wired for normally open (NO). Typical applications include chemical process and vapor deposition systems; industrial gas lines; pollution control monitoring;
Brass liquid flow switch for high inline pressures; 0.25 GPM -- GO-32774-30
Brass liquid flow switch for high inline pressures; 0.5 GPM -- GO-32774-32
Brass liquid flow switch for high inline pressures; 1.0 GPM -- GO-32774-34
Brass liquid flow switch for high inline pressures; 1.5 GPM -- GO-32774-36
Brass liquid flow switch for high inline pressures; 2.0 GPM -- GO-32774-38
Stainless steel liquid flow switch for high inline pressures; 0.25 GPM -- GO-32774-40
Stainless steel liquid flow switch for high inline pressures; 0.5 GPM -- GO-32774-42
Stainless steel liquid flow switch for high inline pressures; 1.0 GPM -- GO-32774-44
Stainless steel liquid flow switch for high inline pressures; 1.5 GPM -- GO-32774-46
Stainless steel liquid flow switch for high inline pressures; 2.0 GPM -- GO-32774-48
The one-piece magnetic PPS composite piston makes these normally open switches ideal for high pressure applications. Switches withstand up to 1500 psi at 70<deg>F (21<deg>C)! Use a 100 <mu>m filter...
UL-approved Liquid Flow Switch for High Inline Pressures; 0.10 GPM -- GO-32778-06
UL-approved Liquid Flow Switch for High Inline Pressures; 0.25 GPM -- GO-32778-08
UL-approved Liquid Flow Switch for High Inline Pressures; 0.50 GPM -- GO-32778-10
UL-approved Liquid Flow Switch for High Inline Pressures; 0.75 GPM -- GO-32778-12
UL-approved Liquid Flow Switch for High Inline Pressures; 1.00 GPM -- GO-32778-14
UL-approved Liquid Flow Switch for High Inline Pressures; 1.50 GPM -- GO-32778-16
These high-pressure SPDT switches withstand pressures up to 1000 psi at 225<deg>F (107<deg>C)! They provide reliable and consistent performance; repeatability is <tol>1%. Switches are UL-listed for use in Class I,...
Liquid flow switch for threaded plastic piping; 0.25 GPM -- GO-32774-60
Liquid flow switch for threaded plastic piping; 0.5 GPM -- GO-32774-62
Liquid flow switch for threaded plastic piping; 1.0 GPM -- GO-32774-64
Liquid flow switch for threaded plastic piping; 2.0 GPM -- GO-32774-66
Liquid flow switch for threaded plastic piping; 2.5 GPM -- GO-32774-68
Liquid flow switch for threaded plastic piping; 5.0 GPM -- GO-32774-70
These normally open switches have 3/4" NPT(F) ports for a quick connection to threaded plastic piping. Polypropylene and stainless steel wetted parts offer excellent chemical resistance. The materials are also...
Clear PVC liquid flow switch; 0.5 GPM, 1/2" NPT -- GO-32777-00
Cole-Parmer Clear PVC Liquid Flow Switch, 0.5 GPM, 3/4" IPS -- GO-32777-02
Cole-Parmer Clear PVC Liquid Flow Switch, 2.0 GPM, 1" IPS -- GO-32777-03
Cole-Parmer Gray PVC Liquid Flow Switch, 0.5 GPM, 3/4" IPS -- GO-32777-22
Cole-Parmer Gray PVC Liquid Flow Switch, 2 GPM, 1" IPS -- GO-32777-24
Gray PVC liquid flow switch; 0.5 GPM, 1/2" NPT -- GO-32777-20
Use these normally open switches with plastic pipes without threads. Switches are available in gray or clear PVC housing. Use clear switches where visual flow confirmation is needed. Use a...
AC Switch for spring-loaded in-line flowmeters, 0.5 A max, 115 VAC -- GO-03231-80
DC Switch for spring-loaded in-line flowmeters, 1 A max, 10 to 30 VDC -- GO-03231-85
Variable Area Flowmeter