




Dwyer Instruments SFI-400SS-4 | Sight flow indicator | 4" body | 6.250" (159 mm) length | 9.000" (229 mm) flange dia. | 5.000" (127 mm) viewing dia. | 25 lb (11.0 kg)
A model of sight flow indicator, the SFI-400SS-4 is made of high-quality materials and has undergone safety testing to ensure long-lasting, dependable service at a reasonable cost. The 400 Series features cast iron or 316 SS bodies, tube-style viewing, and threaded or ANSI flanged process connections. The glass tube structure of the 400 allows for easy flow viewing from any angle.

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- Specifications
- Features
- Downloads
Connection | Threaded or flanged |
Diameter | Flange: 9.000" (229 mm) |
Diameter | Viewing: 5.000" (127 mm) |
Length | 6.250" (159 mm) |
Manufacturer | Dwyer Instruments |
Material | Wetted: Tube: Borosilicate Body: cast iron or 316 SS Gasket: PTFE |
Maximum Operating Pressure | 50 psig (3.45 bar) |
Maximum operating temperature | 200°F (93°C) |
Size | Body: 4" |
Type | Sight Flow Indicator |
Weight | 25 lb (11.0 kg) |
- Manufactured using high-quality materials, ensuring durability and reliability in various industrial applications.
- Undergo rigorous safety testing to ensure compliance with safety standards, guaranteeing safe operation.
- Designed for extended service life, providing dependable performance over time, reducing the need for frequent replacements.
- Available with either threaded or ANSI flanged process connections, providing flexibility for installation in different piping systems.
- Featuring tube-style viewing, allowing operators to observe fluid flow easily from any angle, facilitating efficient monitoring of processes.
- Offered with bodies made of either cast iron or 316 stainless steel, providing options to suit different application requirements and environmental conditions.
- Constructed with glass tubes, providing a clear view of fluid flow, enhancing visibility and facilitating quick and accurate monitoring.
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