Suttner ST-5 Flow Switch – Vertical Mount, 8 GPM, 3650 PSI

Model: 200 005 500
Category: Heating & Combustion → Control Components → Flow Switches
Type: Vertical Mount Flow Switch (Suttner OEM)

The Suttner ST-5 Flow Switch – Vertical Mount is a high-performance, normally open inline control component designed for accurate flow detection in pressure washer and industrial systems. Built for reliability, this switch uses a free-floating magnet and sealed reed switch to detect water flow and trigger electrical continuity when flow is present.

Key Features & Benefits

• Genuine Suttner ST-5 OEM flow switch
• Normally open design for flow-activated operation
• Vertical mount configuration for proper function
• Free-floating magnet with reed switch activation
• Sealed reed switch in nitrogen-filled glass capsule for corrosion resistance
• Eliminates need for restrictive vacuum switches
• Reduces potential leak points in system
• Enhances pump longevity and system reliability

Technical Specifications

Product Name: Flow Switch (Vertical Mount)
Model / Part Number: 200 005 500
Flow Range: 1.0 – 8.0 GPM
Pressure Range: 75 – 3600 PSI (Max rated up to ~3650 PSI)
Max Temperature: N/A
Mounting Orientation: Vertical Only
Switch Type: Reed Switch (Normally Open)
Magnet Type: Free Floating
Lead Length: 47 inches
Inlet Connection: 3/8" FPT
Outlet Connection: 3/8" FPT
Weight: 16 oz
Brand: Suttner
Condition: New

Wiring Instructions

• Lead #1: Line / Power
• Lead #2: Load
• Yellow/Green: Ground

Adjustment Note:
Depending on system flow, the magnet position may vary. If the switch does not close at lower flow rates, loosen the adjustment screw and reposition the reed switch to ensure proper activation.

Typical Applications

• Pressure washer flow-activated burner systems
• Industrial and commercial cleaning equipment
• Flow-based control systems
• Applications replacing vacuum switches

Performance Benefits

• Activates system only when water flow is present
• Eliminates vacuum switch failures (no diaphragm)
• Reduces leaks and improves system integrity
• Sealed reed switch resists corrosion and chemicals
• Improves pump lifespan by avoiding flow restriction
• Reliable and consistent operation in demanding environments