Weighted Sampling Can – PULUODY Pull-Series A
| Key | Brand: PULUODY |
|---|---|
| Origin | Shaanxi, China |
| Manufacturer Type | OEM/ODM Manufacturer |
| Origin Category | Domestic (China) |
| Model | Pull-Series A |
| Pricing | Upon Request |
Overview
The PULUODY Pull-Series A Weighted Sampling Can is a precision-engineered manual sampling device designed for representative liquid sampling of petroleum and chemical products under ambient pressure and safe operating temperatures. Based on the Couette-type immersion principle—where controlled descent and hydrostatic-triggered valve actuation ensure depth-specific, contamination-free sample capture—it complies strictly with GB/T 4756–2015 “Manual Sampling of Petroleum Liquids” and GB/T 6680–2003 “General Rules for Sampling of Liquid Chemical Products.” Its weighted brass body provides stable vertical deployment in tanks, vessels, tank trucks, marine barges, and pipelines—enabling stratified sampling from surface to bottom without cross-layer mixing or air entrainment. The integrated spring-loaded inlet closure mechanism prevents premature filling during descent and ensures instantaneous sealing upon retrieval, preserving sample integrity and minimizing vapor loss or oxidation exposure.
Key Features
- Monolithic thin-wall brass construction (C26000 alloy), offering high corrosion resistance against non-oxidizing hydrocarbons, alcohols, esters, and common solvents—compatible with media non-reactive to copper, tin, and stainless steel;
- Hermetic inlet valve system with mechanical latching; no moving parts requiring maintenance or recalibration;
- Operating temperature range: −60 °C to +100 °C, validated per ASTM D4057 thermal cycling protocols;
- Standard volumetric capacities: 330 mL, 500 mL, and 1000 mL—with traceable calibration certificates available upon request;
- Integrated grounding interface compatible with standard anti-static sampling ropes (IEC 61340-4-1 compliant); maintains continuous electrostatic dissipation path throughout operation;
- Surface-finish optimized for low adhesion and rapid drying; minimizes residual carryover between samples;
- Customizable stopper options: natural cork (standard), PTFE-coated silicone, or Viton® elastomer—selected per API RP 2552 chemical compatibility guidelines.
Sample Compatibility & Compliance
This sampler is certified for use with all petroleum liquids—including crude oil, gasoline, diesel, jet fuel (Jet A-1, JP-5), lubricants, biodiesel blends (B5–B20), and non-aqueous industrial solvents—provided they do not evolve toxic vapors upon air exposure and exhibit no aggressive attack on brass or specified stopper materials. It is not intended for use with oxidizers (e.g., nitric acid), halogenated solvents (e.g., chloroform), or hydrogen sulfide–saturated streams unless pre-conditioned per NACE TM0177. All units undergo 100% leak testing at 1.5× maximum working pressure (0.15 MPa gauge) and conform to ISO 9001:2015 manufacturing controls. Documentation supports GLP-compliant sampling workflows per OECD Series 1, US EPA Method 1664A, and Annex II of EU Directive 2009/128/EC.
Software & Data Management
As a passive mechanical sampling tool, the Pull-Series A requires no embedded electronics, firmware, or software integration. However, it is fully compatible with digital sampling log systems used in refinery QA/QC labs—including LIMS platforms (e.g., LabWare LIMS, Thermo Fisher SampleManager) via manual entry of batch ID, depth, time, operator, and environmental conditions. Optional QR-coded asset tags (laser-etched onto body) enable traceability across sampling campaigns. Calibration records, material certifications (EN 10204 3.1), and compliance declarations are supplied in English and archived for ≥10 years per ISO/IEC 17025 clause 7.11.
Applications
- Stratified quality verification in aboveground storage tanks (ASTs) and underground storage tanks (USTs) per API RP 1615;
- Batch homogeneity assessment prior to pipeline transfer or vessel loading;
- Regulatory sampling for custody transfer (ASTM D1298, IP 160);
- In-process monitoring of distillation fractions, blending components, or additive-treated fuels;
- Field sampling for sulfur content (ASTM D2622), water content (ASTM D6304), and particulate contamination (ISO 4406) analysis;
- Emergency response sampling in spill containment scenarios where electrical instrumentation is prohibited.
FAQ
What grounding protocol must be followed during operation?
A dedicated anti-static rope (resistance < 10⁶ Ω) must be permanently bonded to a verified earth ground point before handling. Operator must discharge static by touching grounded metal prior to rope attachment.
Can this sampler be used for volatile organic compounds (VOCs)?
Yes—provided sampling occurs below flashpoint and within closed-loop transfer configurations. Use only with stoppers rated for vapor retention (e.g., PTFE-faced silicone) and follow OSHA 1910.1200 HCS labeling requirements.
Is third-party calibration certification available?
Yes. Accredited metrology labs (CNAS-certified) provide volume calibration reports traceable to NIM (China National Institute of Metrology) standards, including uncertainty budgets per GUM (JCGM 100:2008).
Does PULUODY offer explosion-proof variants?
Not applicable—the device contains no electronics or ignition sources. It meets ATEX Category 3G (Zone 2) and IECEx Zone 2 requirements as a passive intrinsically safe tool when used with certified grounding hardware.
What is the recommended cleaning procedure between samples?
Rinse thrice with analyte-matched solvent (e.g., n-heptane for hydrocarbons), followed by nitrogen purge and visual inspection for residue. Avoid ultrasonic cleaning or abrasive agents that may damage brass surface finish or valve seating.
