These Polycarbonate Threaded Sight Glass Tubes are also called Sight Glass Nipples. They have Male NPT Threads one either ends and therefore screw in-line into Female NPT Threads. They are used to enable a constant view of what is flowing in a system at all times. They are designed to be impact resistant and can withstand prolonged exposure to ultraviolet (UV) rays. Widely used in the chemical & Petroleum industries as well as in Agriculture, Material Handling and in Construction.

• Description:
• ● 8" Long Threaded Polycarbonate Sight Glass Tube.
• ● Male NPT Threads on either end.

• Uses: 
• ● To view the flow in-line at all times.
• ● Widely used in standard Fuel and Dry bulk applications.
• ● Often installed between industrial hose and other equipment like a pump or a truck.
• ● Useful to see whats flowing through Sludge waste lines, separators and storage tank drain lines.
• ● Recommended for use on Drain lines. (Not on Flow Lines)

• Advantages:
• ● Constant access to view your in-line flow.
• ● Impact/Shatter-Resistant.
• ● Ultraviolet (UV) ray Resistant.
• ● Comes with Blue Thread protector caps.

• Operation:
• ● Functions as a simple Sight Glass alowing the constant view of the in-line flow.

• Installation:
• ● Male NPT Threads will install easily into any Female NPT threads of the same size.

• Safety Warnings:
• ● Do not use pipe wrench on the sight glass- always tighten the metal connecting pieces instead.
• ● Do not tighten or loosen under pressure.
• ● Do not use on Flow lines, only on drain lines.

• Material:
• ● Polycarbonate

Specifications: