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M-55 Series Fixed Set Point Flow Switches

The M-55 low flow, flow switches monitor increasing and decreasing flow. They utilize a single moving part which responds to fluid (liquid or gas) flowing within a system. These switches are suitable for a wide range of applications in industrial, biomedical, and OEM products. The flow monitors operate only when fluid flow is positively established.
Industries: Chemical , Oil & Gas , Industrial
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The M-55 low flow, flow switches monitor increasing and decreasing flow. They utilize a single moving part which responds to fluid (liquid or gas) flowing within a system. These switches are suitable for a wide range of applications in industrial, biomedical, and OEM products. The flow monitors operate only when fluid flow is positively established.

Features:

• For corrosive and non-corrosive gases or liquids
• Senses increasing or decreasing flow
• Very accurate custom flow settings
• Hermetically sealed
• All-PTFE switch available
• Universal mounting available

The M-55 low flow, flow switches monitor increasing and decreasing flow. They utilize a single moving part which responds to fluid (liquid or gas) flowing within a system. These switches are suitable for a wide range of applications in industrial, biomedical, and OEM products. The flow monitors operate only when fluid flow is positively established.

Features:

• For corrosive and non-corrosive gases or liquids
• Senses increasing or decreasing flow
• Very accurate custom flow settings
• Hermetically sealed
• All-PTFE switch available
• Universal mounting available

Housing

Acrylic

Aluminum

316SS

PTFE

Piston*

316SS

316SS

316SS

PTFE

Orifice Plate or Disc

Stainless Steel

PTFE

Spring

Stainless Steel

N/A

Retaining Rings*

Stainless Steel (PH 15-7 MO, AMS 5520, AISI-632) (Passivated)

PTFE

Pressure & Temperature

 

 

 

 

Maximum Operating (psig)

200

1,000

3,000

80

Burst (psig)

400

2,000

5,000

160

Maximum Operating Temperature

77°C (170ºF)

149°C (300ºF)

149°C (300ºF)

104°C (220ºF)

Reed Switch Data

 

 

 

 

(Electrical Ratings)

10 Watts SPST or 3 Watts SPDT (Hermetically Sealed) UL Recognized. File E47258.

Reed Switch

Operating Temperature -40ºC to 125ºC

Switching Voltage

200 VDC (170 VDC for SPDT)

Breakdown Voltage

250 VDC (200 VDC for SPDT)

DC Resistive

10 Watts (3 Watts for SPDT)

AC Resistive

10 VA (3VA for SPDT)

Switching Current

0.5 A (0.25 A for SPDT)

Carrying Current

1.2 A (0.5A for SPDT)

Lead Wires

No 24 to 18 AWG. 18" Length, Polymeric UL Recognized (Belden cable or special shielded cable is available)

Lead Wires Color

SPST: 2 Blue wires;

SPDT: Green - Common, Yellow - Normally Closed, Orange - Normally Open

Flow Calibration

(Higher accuracy units available)

Set Point Accuracy

10% maximum

Set Point Differential (Deadband)

15%

Repeatability

± 2% maximum

 

For additional specification details, please refer to the product data sheet located in the documentation tab of this web page. 

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