Harrington, Inc.
Sightglass HSG Extension - 6" NH Male x 6" NH Female Swivel
Heavy-duty aluminum sight glass extension with 6" NH male x 6" NH female swivel connection, designed to extend large-diameter hose connections while providing visual flow confirmation. Available with rocker lug or long handle configurations for secure, easy coupling.
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Features
- Integrated Sight Glass Window: Allows visual confirmation of water flow and debris
- 6" NH Male x Female Swivel: Provides flexible positioning and easy alignment during setup
- Swivel Female Connection: Reduces hose kinking and simplifies installation
- Rocker Lug or Long Handle Options: Choose engagement style based on department preference and operational needs
- Durable Aluminum Construction: Lightweight yet rugged for field durability
- Corrosion-Resistant Finish: Designed to withstand harsh firefighting environments
- Large Diameter Flow Path: Maintains efficient, unrestricted water flow
What is it?
The Harrington HSG Sight Glass Extension is a large-diameter hose accessory that combines a hose extension and inspection window into one device. It connects between hose sections or equipment, allowing operators to visually confirm water movement, clarity, and debris presence during operations.
How is it used?
- Connect the 6" NH male end to a hose, pump, or discharge outlet
- Attach the 6" NH female swivel end to the downstream hose or appliance
- Observe water flow through the integrated sight glass during operation
- Use lug or handle configuration to tighten and secure connections
This enables quick troubleshooting and confirmation of water supply in critical situations.
Who uses it?
- Fire departments (municipal and industrial)
- Water supply and tanker operations
- Pump operators and engineers
- Emergency response teams handling large-diameter hose
- Training and maintenance personnel
Maintenance Information
- Inspect sight glass for cracks, clouding, or damage before and after use
- Check gaskets and swivel connection for wear
- Clean window surface to maintain visibility
- Ensure threads and lugs are free of debris
- Store in a clean, dry environment
- Replace seals or unit if compromised
What is it used with?
- Large diameter fire hoses (LDH)
- Fire pumps and apparatus discharges
- Hydrants and water supply systems
- Manifolds, valves, and gated wyes
- Relay pumping and long hose lays
Material
- Aluminum body
- Transparent sight glass insert
- Product Type: Sight Glass Extension
- Brand: Harrington Inc.
- Connection Type: NH (NST) Male x NH Female Swivel
- Inlet Size: 6.0"
- Outlet Size: 6.0"
- Inlet Connection: Male Thread
- Outlet Connection: Female Swivel Thread
- Handle Options: Rocker Lug or Long Handle
- Flow Path: Full-flow large diameter
- Finish: Corrosion-resistant
- Model Series: HSG