Sampling Cylinders: Technical Overview
Sampling cylinders (also called sample bombs or sample bottles) are pressure-rated stainless steel containers used to collect, transport, and store representative samples of process fluids from refineries, chemical plants, and natural gas facilities. They are the critical interface between the closed loop sampling panel and the laboratory — preserving the sample's composition, pressure, and temperature from extraction through analysis.
Wanan manufactures two primary cylinder types: standard sampling cylinders with double-end needle valves for stable liquids and gases, and constant-pressure (piston) cylinders with an internal spring-loaded piston for volatile liquids where maintaining process pressure is essential to prevent light-end vaporization. Both types are manufactured from 316L stainless steel with full material traceability.
Основные технические характеристики
| Параметр | Standard Cylinder | Piston (Constant-Pressure) |
|---|---|---|
| Объем | 150 mL - 4 L | 300 mL - 1 L |
| Design Pressure | 10 - 30 MPa (1,500 - 4,500 PSI) | 10 - 20 MPa |
| Материал | 316L SS seamless tube | 316L SS + PTFE piston seal |
| Valve Type | Double-end needle valve | Double-end needle valve + vent |
| Сертификация | ASME, DOT, TPED, GB 5099 | ASME, DOT, TPED |
| Hydrostatic Test | 1.5x design pressure | 1.5x design pressure |
Приложения
- Refinery Sampling: Crude oil, naphtha, gasoline, diesel, LPG, jet fuel
- Petrochemical: Ethylene, propylene, aromatics, solvents, intermediates
- Natural Gas: Natural gas liquids, condensate, pressurized gas samples
- Lab Analysis: GC/MS sampling, RVP testing, distillation, sulfur analysis


