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ALTEK MODEL 334A LOOP CALIBRATOR
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Model:Â ALTEK MODEL 334A
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Brand:Â ALTEK Industries, Inc.
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Category:Â Milliamp Loop Calibrator / Process Loop Calibrator
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Type: 4–20 mA / 0–24 mA Milliamp Loop Calibrator
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Display: 3.5–4 digit LCD (0.4" high digits), readable in direct sunlight
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Drive Capability: Up to 1200 Ω at 20.0 mA with fresh batteries
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Compliance Voltage: Nominal 24–27 V DC depending on mode and load
- Country of Origin: United States
MAN B&W S50MC-C S50MC L50MC Piston Crown
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Engine Series:Â Two-stroke, low-speed marine diesel engines (MC/MC-C types) with crosshead design for propulsion in large vessels.
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Bore Size:Â 500 mm nominal bore, optimized for high combustion efficiency and power output.
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Stroke Length:Â Approximately 2,000 mm (S50MC/S50MC-C), with L50MC variant offering longer stroke for improved efficiency.
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Cylinder Configurations:Â Inline 6S50MC-C to 12S50MC-C; adaptable to S50MC and L50MC for various power ratings up to 12,000 kW.
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Power Output:Â 7,500-8,500 kW per engine (depending on cylinder count and rpm: 127-140 rpm).
MAN B&W L28/32H Piston Crown Skirt
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Engine series: MAN B&W L28/32H four-stroke, medium-speed GenSet diesel engine for marine propulsion and auxiliary power.​
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Bore size: 280 mm nominal (optimized for precise piston fit and combustion efficiency).​
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Stroke length: 320 mm, supporting speeds up to 720/750 rpm and piston speeds of ~10 m/s.​
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Cylinder configurations: Inline 5L28/32H to 9L28/32H variants for GenSet applications.​
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Power output: Up to 220 kW per cylinder (max total 1,980 kW for 9-cylinder model).​
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Material & construction: High-strength aluminum alloy or coated skirt with crown interface for thermal expansion control.​
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Part number reference: OEM codes like 51306-xx series (exact PN varies by piston mark/version; e.g., Mahle/KS equivalents for 5L-9L28/32H).
