Horizontal Pressure Vessel – 232 PSIG Design Pressure

This horizontal pressure vessel, built by Vanpipe Ltd. in 1983 under serial number A237/82, complies with ASME Section VIII, Division 1 construction code for unfired pressure vessels. Designed to operate at 232 PSIG (approximately 15.99 bar) and a temperature of 131°F (55°C), it is suitable for moderate pressure applications involving gases or process fluids. The vessel underwent a hydrostatic test at 348 PSIG (24 bar), conforming to the ASME requirement of 150% of design pressure. Longitudinal weld seams were 100% radiographed, ensuring high integrity, while 10% radiography was performed on the circumferential seams. No post-weld heat treatment (stress relief) was applied. While the material of construction and internal corrosion allowance are not specified, typical practice indicates carbon steel or stainless steel with a standard 3 mm allowance. Heads are presumed elliptical or hemispherical in line with standard vessel design. Support is typically provided via saddle mounts for horizontal orientation.

Specifications:

– Equipment Type: Horizontal Pressure Vessel / Tank
– Manufacturer: Vanpipe Ltd.
– Serial Number: A237/82
– Date of Manufacture: 1983
– Orientation: Horizontal
– Code of Construction: ASME Section VIII, Division 1
– Inspector’s Reference No.: L.R. MCH. 300151
– Design Pressure: 232 PSIG (≈ 15.99 bar)
– Hydrostatic Test Pressure: 348 PSIG (≈ 24 bar)
– Design Temperature: 131°F (≈ 55°C)
– Radiography:
 • 100% on Longitudinal Seams
 • 10% on Circumferential Seams
– Weld Type: Butt-welded (presumed)
– Stress Relief: Not Applied (NIL)
– Heads: Elliptical or hemispherical (not specified)
– Code Compliance: ASME Section VIII, Division 1
– Materials: Not specified (typically carbon steel or stainless steel)
– Joint Efficiency: E = 1.0 (assumed for full RT longitudinal seams)
– Corrosion Allowance: Not specified (typically 1/8" or 3 mm)
– Supports: Not specified (typically saddle-mounted for horizontal design)
– Design Application: Storage of compressed gases or process fluids under moderate pressure
– Temperature Class: Ambient to moderately elevated conditions
– Pressure Envelope Testing: Hydrostatic test at 150% of design pressure

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