The INSIZE 1179-300 Digital RTJ Ring Groove Caliper is a specialized precision measuring instrument designed for measuring RTJ (Ring Type Joint) ring grooves in flanges. It can measure both the inside diameter and outside diameter of RTJ ring grooves, making it suitable for flange inspection, oil & gas equipment, pressure vessels, pipelines, machining, and quality control. The instrument is designed for 23° RTJ ring grooves and provides 0.01 mm / 0.0005" resolution.
Key Features
- Specialized RTJ Ring Groove Measurement
The 1179-300 is specifically designed to measure Ring Type Joint grooves in flanges, providing a more suitable solution than conventional calipers for these specialized groove dimensions. - Inside & Outside Diameter Measurement
It can measure the inside diameter from 10–300 mm (0.4–12") and the outside diameter from 25–300 mm (1–12"), providing versatility for flange inspection. - High-Resolution Digital Display
The caliper provides 0.01 mm / 0.0005" resolution, allowing precise and convenient digital measurement readings. - Designed for 23° RTJ Grooves
The measuring system is designed for 23° RTJ ring grooves. The instrument is identified as Type A, with dimensions configured specifically for this application. - Stainless Steel & Data Output
The caliper is constructed from stainless steel and features ON/OFF, zero, mm/inch and data-preset functions. It uses a CR2032 battery and supports optional data-output accessories.
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