Weld-in-adapter

Summary

Weld-in Adapter, Process Adapter, and Flanges

These adapters and flanges are designed to connect level, pressure, or temperature measuring instruments to vessels or pipes.

Advantages

• Corrosion Resistance: High-quality materials are used for compatibility with aggressive media.
• Hygienic Design: Versions are available without crevices and dead space, complying with international hygiene regulations.
• Versatile Sealing: Weld-in adapters offer a variety of seal options for diverse process applications.

General Information

• Pressure Equipment Directive 2014/68/EU: The adapters covered in this document do not fall under the scope of the Pressure Equipment Directive as they lack a pressure-bearing volume.
• Suitability for Hygienic Processes: Connections listed have EHEDG and 3-A approval. Seals complying with FDA 21 CFR and EU Regulation 10/2004 are suitable for food contact.
• Material Compliance: Metals meet at least the voluntary standard of the Council of Europe - EDQM Guide “metals and alloys used in food contact materials and articles 2013 (1st edition)”. Seals comply with FDA and European food contact regulations.

Weld-in Adapters - Level Overview

A variety of weld-in adapters for level measurement are available, differing in connection type (pipe-mounting, vessel-mounting, flush mounting with flange, adjustable), materials (primarily 316L), and process side roughness. Specific order numbers and compatible measuring instruments are detailed in the document.

• G ¾, d=29 pipe-mounting: Material: 316L (1.4435), Roughness: ≤ 1.5 μm (59.1 μin).
• G ¾, d=50 vessel-mounting: Material: 316L (1.4435), Roughness: ≤ 0.8 μm (31.5 μin).
• G ¾, d=55 with flange for flush mounting: Material: 316L (1.4435), Roughness: ≤ 0.76 μm (29.9 μin).
• G 1, d=53 pipe-mounting: Material: 316L (1.4435), Roughness: ≤ 0.76 μm (29.9 μin).
• G 1, d=60 with flange for flush mounting: Material: 316L (1.4435), Roughness: ≤ 0.76 μm (29.9 μin).
• G1 sensor adjustable: Material: 316L (1.4435), Roughness: ≤ 0.8 μm (31.5 μin).
• RD52 sensor adjustable: Material: 316L (1.4435), Roughness: ≤ 0.8 μm (31.5 μin).
• UNI D85: Material: 316L (1.4435), Roughness: ≤ 0.76 μm (29.9 μin).
• UNI D65: Material: 316L (1.4435), Roughness: ≤ 0.76 μm (29.9 μin).
• M24 D65: Material: 316L (1.4435)/304 (1.4301), Roughness: ≤ 0.76 μm (29.9 μin)/≤ 0.8 μm (31.5 μin).
• DRD DN50 (65 mm (2.6 in)) for flush mounting: Material: 316L (1.4435)/304 (1.4301), Roughness: ≤ 0.76 μm (29.9 μin)/≤ 0.8 μm (31.5 μin).
• G 1¼ with G 1 thread adapter: Material: AISI 316L (1.4404), Roughness: ≤ 0.76 μm (29.9 μin).

Specific versions are designated as "Only for Micropilot."

Weld-in Adapters - Pressure Overview

Similar to level adapters, these are available in various configurations for pressure measurements, primarily in 316L or 304 (1.4301) materials, with specified process side roughness.

• UNI D85: Material: 316L (1.4435), Roughness: ≤ 0.76 μm (29.9 μin).
• UNI D65: Material: 316L (1.4435), Roughness: ≤ 0.76 μm (29.9 μin).
• DRD DN50 (65 mm (2.6 in)) (weld-in flange): Material: 316L (1.4435)/304 (1.4301), Roughness: ≤ 0.76 μm (29.9 μin).
• M24 D65: Material: 316L (1.4435), Roughness: ≤ 0.76 μm (29.9 μin).
• G 1 adjustable: Material: 316L (1.4435), Roughness: ≤ 0.8 μm (31.5 μin).
• G 1, d=53 pipe-mounting: Material: 316L (1.4435), Roughness: ≤ 0.76 μm (29.9 μin).
• G 1, d=60 with flange: Material: 316L (1.4435), Roughness: ≤ 0.76 μm (29.9 μin).
• G 1½ flush mount: Material: 316L (1.4435), Roughness: ≤ 0.8 μm (31.5 μin).
• G 1 flush mount (sealing taper): Material: 316L (1.4404), Roughness: ≤ 0.8 μm (31.5 μin).
• G ½ flush mount: Material: 316L (1.4435), Roughness: ≤ 0.8 μm (31.5 μin).
• G ½ DIN3852: Material: 316L (1.4404), Roughness: ≤ 0.8 μm (31.5 μin).

Compatible measuring instruments include Cerabar, Ceraphant, Deltapilot, and Deltabar series.

Weld-in Adapters - Temperature Overview

Adapters for temperature measurement are also detailed, with specific models and their associated materials and roughness values.

Flanges - Overview

• Flange Standard: DIN EN 1092-1, ASME B16.5, JIS B 2220.
• Pressure Ratings: Available in PN16, PN25, PN40, PN63, PN100 for DIN EN; Class 150, 300, 600, 900, 1500 for ASME; 10 K, 20 K, 63 K for JIS.
• Other Flange Types: Slip-on flange (FAU80), Screw-in flange (FAX50), and universal flanges supporting DIN, ASME, and JIS standards are also available. Threaded connections like G ¾, NPT ¾, G 1, NPT 1, G 1½, NPT 1½, G 2, NPT 2 are also listed.

Mounting and Welding Instructions

Detailed instructions are provided for preparation, welding procedures, and mounting of the adapters and flanges. Information regarding leakage holes/ports and specific considerations for pressure measuring instruments is included.

Pressure-Temperature Dependency

Tables detailing the pressure-temperature limitations for EN, ASME, and JIS flanges are presented.

Seals and Accessories

Various seals (Silicone O-ring, EPDM O-ring, FKM O-ring, PTFE flat seal, Silicone profile gasket, FFKM O-ring) and accessories like welding dummies and blind plugs are available. Seal materials comply with FDA and other relevant regulations. Replacement seals are often sold in packs of 5 or 3, with some individual replacements also available.

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Disclaimer: This extracted summary may omit figures, footnotes, or revisions. Contractual data must match the official OEM PDF revision used for the project.

Official datasheet (PDF)

Lenntech datasheet mirror