High-pressure flow sight glass type 520A Class 300/1500 lbs

Product catalog summary

Overview: The high-pressure sight glasses of type 520A are designed for monitoring the level and flow in pipelines. They are installed between flanges according to ASME B 16.5 standards and are suitable for both individual devices and complete systems.

Specifications:

Materials: Body made of 1.4571 stainless steel, borosilicate glass DIN 7080, and gaskets made of graphite/stainless steel.
Temperature Resistance: Up to 280°C with borosilicate glass, and up to 300°C with mica protection disc.
Pressure Range: From 50 barg to 250 barg.
Class: Ranges from 300 lbs to 1500 lbs.

Installation Notes: Gaskets must match sealing surfaces, and screw materials should be equal or superior to flange materials. Lubrication of screw threads and heads is recommended.

Product Code Explanation: The product code is structured to indicate the type, nominal pipe size (NPS), class, body material, glass type, gasket material, and variant. For example, the code 11-520A-8-3-1-4-7-000 represents a standard version with specific attributes.

Optional Accessories: Include round mica discs for temperatures up to 320°C, grid impact protection windows, metal fused safety sight glass for safety applications, and LED lights for Ex and non-Ex areas.

Applications: Suitable for both liquid and gaseous media, with nominal sizes ranging from 1" to 8". Custom designs are available upon request.

Catalog excerpts

High-pressure flow sight glass type 520A Class 300/1500 lbs-1

High-pressure flow sight glass type 520A Class 300/1500 lbs Intermediate flange design for flanges according to ASME B 16.5 mi With flange connections according to DIN EN 1759-1 suitable for counter flanges according to ASME B 16.5 USAGE High-pressure sight glasses of type 520A are used to observe the level and flow in pipelines. They enable reliable monitoring of the function and performance of individual devices as well as complete systems. The high-pressure sight glasses of type 520A are designed for installation between flanges according to ASME B 16.5. Gaskets must always be used that match the sealing surfaces. The screw material should be equal or superior compared to the flange material. If possible, both the screw thread and the screw head should be coated with a suitable lubricant. 10112025 - Subject to technical changes and errors!

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High-pressure flow sight glass type 520A Class 300/1500 lbs-2

Example for Explaining the Code Composition Unless otherwise specified, the highlighted factory standard will be delivered. The product code 11-520A-8-3-1-4-7-000 corresponds to the standard version: ACI type 520A NPS 4“ Borosilicate glass DIN 7080 with mica Gasket Graphite / stainless steel 10112025 - Subject to technical changes and errors!

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High-pressure flow sight glass type 520A Class 300/1500 lbs-3

High-pressure flow sight glass type 520A Class 300/1500 lbs Intermediate flange design for flanges according to ASME B 16.5 QUICK OVERVIEW custom designs possible 10112025 - Subject to technical changes and errors!

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High-pressure flow sight glass type 520A Class 300/1500 lbs-4

High-pressure flow sight glass type 520A Class 300/1500 lbsIntermediate flange design for flanges according to ASME B 16.5 Type OPTIONAL ACCESSORIES Round mica discs > up to 320 °C with Borosilicate glass > for safety applications For aggressive media, steam or operating pressures > 160 bar are mica discs used for protection of the glasses. d Konigskamp 19 • 52428 Julich • Germany 10112025 - Subject to technical changes and errors!

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