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Our premium double-ended LPG LNG Seamless sample cylinders are engineered for high-pressure gas and fluid sampling in demanding oil & gas, petrochemical, and offshore environments. Available in 150ml to 1-gallon (3785ml) capacities, these cylinders feature seamless construction, military-grade pressure ratings, and superior corrosion resistance for reliable performance in harsh conditions.
Certification: DOT Certification
Military-Grade Pressure Rating - 1800psi, 3000psi, or 5000 PSIG (344 bar) working pressure, ideal for HPHT (High-Pressure High-Temperature) applications.
Zero-Leak Seamless Design - Cold-drawn tubing ensures uniform wall thickness, eliminating weld failure risks for maximum safety.
Corrosion-Resistant Materials - Standard 316L stainless steel, with optional 904L (chloride resistance), Alloy 625 (Inconel®), Hastelloy®, Monel®, or super duplex steel (UNS S31803/S32750/S32760) for extreme environments.
NACE MR0175 Compliance - Certified for sour service (HS-rich) and chloride stress corrosion cracking (SCC) resistance, making them perfect for offshore and acidic conditions.
Double-Ended Configuration - 1/4" or 1/2" FNPT Female BSPP BSPT ports with needle valve plug protection for secure transport and easy integration into manifold sampling systems.
Quick-Connect & Bubble-Tight Sealing - Pre-installed needle valves and NPT threads ensure leak-free operation.
Specialized Coatings - Vulcanization, Sulfur Passivation, or PTFE coating for enhanced HS and sulfur resistance (API compliant).
Precision-Machined Interior - Smooth internal finish minimizes contamination, ensuring accurate and representative samples.
Customizable Options - Available in 150ml, 300ml, 500ml, 1000ml, 1500ml, 2000ml, and 1-gallon 1Gal 3785ml sizes with automated sampling integration upon request.
| Stainless Steel 316 | Excellent general corrosion resistance, good mechanical strength, and weldability. SS316L (low carbon) offers superior resistance to sensitization (carbide precipitation) in welded applications. |
6 Moly (6% Molybdenum Super Austenitic, UNS S31254, N08367) |
Enhanced pitting/crevice corrosion resistance (PREN >40), high chloride tolerance, and acid resistance surpassing standard stainless steels. |
| Duplex Steel (UNS S31803 / S32205) | Excellent chloride and stress corrosion cracking resistance. |
| Super Duplex Steel (UNS S32750 / S32760) | Enhanced strength and pitting resistance for harsh offshore/chemical environments. |
| Inconel ® 625 (UNS N06625) | Resists oxidation and acidic corrosion. |
| Hastelloy ® C276 (UNS N10276) | Ideal for sulfuric, hydrochloric, and other aggressive acids. |
| Monel ® 400 (UNS N04400) | Superior performance in seawater and hydraulic flow acid. |
Oil & Gas: Wellhead sampling, produced fluids, sour gas (H2S/CO2).(HPHT, sour gas, offshore)
Chemical Processing: Acid, alkali, and solvent sampling.
Refinery & Petrochemical Process Monitoring
Environmental & Emissions Testing
Geothermal & Industrial Gas Analysis
Power Plants: Boiler water, steam, and condensate analysis.
Pharmaceutical & Food: High-purity fluid transfer.
Offshore/Marine: Seawater sampling, splash zones, and high-salinity brines.
Chemical/Petrochemical: Concentrated chlorides, sulfuric/phosphoric acids, and bleach (hypochlorite) solutions.
Pollution Control: Flue gas desulfurization (FGD) scrubber systems.
Pulp & Paper: Aggressive bleaching liquors and acidic digesters.
Alternative to Duplex: When higher ductility or avoidance of sigma phase (from heat exposure) is required.
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