Tank Sight Glass type 232 | Noris

Type 232 Noris Sight Glass with Male Thread

The Noris Bauform 232 is a threaded sight glass with a male G / BSP connection, designed for direct installation into threaded ports on tanks, pipelines, or vessels. It is used for local visual inspection of flow, liquid or gas presence, color, foaming, and medium clarity in process applications.

Operating Conditions

• Operating pressure: up to 40 bar
• Operating temperature: 150 °C or 280 °C (depending on glass type)
• Connection: male G / BSP thread
• Suitable media: liquids and gases
• Installation: threaded socket, depending on vessel or piping configuration

Materials and Glass Options

Body available in carbon steel or stainless steel. Glass options include borosilicate (DIN 7080) or soda-lime (DIN 8902). Selection is based on pressure, temperature, chemical compatibility, and process visibility requirements.

Selection Criteria

Specification requires the following parameters:

• Thread diameter
• Operating pressure
• Operating temperature
• Body material
• Glass type
• Process media compatibility

Typical Applications

Type 232 is used where flanged or welded bases are not available, but a threaded connection exists. Common in auxiliary vessels, small tanks, liquid lines, gas lines, and custom small-batch fabrications.

Comparison with Flanged or Welded Types

The main difference is the connection method. Type 232 uses a male G / BSP thread, while other sight glass types require a flange, weld-neck, or direct welding to the vessel shell. This affects mechanical loading, sealing integrity, and ease of replacement.

FAQ

Is this a continuous level measurement device?
No. It is a visual inspection component only.

Does it require an actuator?
No. There is no actuation mechanism.

What is checked during maintenance?
Glass cleanliness, cracks, sealing condition, bolt tightness, and signs of leakage at the thread.