Jihepu YX-18LD Portable Stainless Steel Steam Sterilizer

Overview

The Jihepu YX-18LD Portable Stainless Steel Steam Sterilizer is a gravity-displacement, saturated steam-based sterilization system engineered for reliable thermal deactivation of microorganisms—including bacterial spores—on heat-stable laboratory and clinical materials. It operates on the fundamental principle that sustained exposure to pressurized saturated steam at ≥121 °C (typically 126 °C at 0.14–0.16 MPa) achieves microbial lethality through protein denaturation and nucleic acid hydrolysis. Designed for benchtop or mobile deployment, this unit complies with core sterilization process requirements outlined in ISO 17665-1 (Sterilization of health care products — Moist heat — Part 1: Requirements for development, validation and routine control), and supports GLP-compliant documentation when integrated with external logging systems. Its compact footprint and self-contained operation make it suitable for decentralized sterilization workflows in resource-constrained environments, including field laboratories, rural clinics, and educational institutions.

Key Features

• Full 304 stainless steel construction throughout chamber, lid, and outer casing—resistant to corrosion from repeated steam exposure, cleaning agents, and mild acidic/alkaline residues.
• Integrated dual-scale analog gauge displaying both pressure (0–0.25 MPa) and corresponding saturation temperature (0–140 °C), enabling real-time correlation between pressure and thermal conditions without digital dependency.
• Spring-loaded safety valve certified to activate automatically at ≤0.16 MPa, supplemented by a manual pressure-release valve for controlled venting during cooldown.
• Immersed stainless steel heating element ensures uniform thermal distribution and rapid steam generation; no exposed coils or ceramic housings susceptible to mechanical damage.
• Gravity-displacement chamber design facilitates efficient air removal prior to sterilization cycle initiation—critical for achieving sterility assurance levels (SAL) of 10⁻⁶ on wrapped and unwrapped loads.
• Compact external dimensions (410 × 410 × 520 mm) and net weight (16 kg) support portability across lab zones or transport to remote sites without dedicated trolleys or lifting equipment.

Sample Compatibility & Compliance

The YX-18LD accommodates standard laboratory payloads up to 18 L volume, including wrapped surgical instruments, glassware (e.g., flasks, Petri dishes), autoclavable plastic containers, textile dressings, and liquid media (with appropriate venting protocols). It is not intended for sterilizing heat-labile polymers, oils, powders, or sealed liquids without validated load configurations. While not FDA-cleared as a medical device, its operational parameters align with CDC-recommended steam sterilization cycles (e.g., 126 °C for 15–20 min for wrapped items) and meet minimum performance criteria referenced in ASTM E535 (Standard Specification for Steam Sterilizers). Users are responsible for validating cycle efficacy per ISO 11134 and maintaining records per local GLP/GMP or healthcare accreditation requirements.

Software & Data Management

This model operates via manual cycle control—no embedded microprocessor, touchscreen, or data logging capability. Cycle timing, temperature hold, and venting are managed externally using a wall-mounted timer or stopwatch. For audit-ready traceability, users may pair the unit with standalone temperature/pressure data loggers (e.g., compliant with FDA 21 CFR Part 11 when validated) placed inside the chamber or load. All mechanical controls—including valve actuation and gauge readings—are fully accessible for visual inspection and third-party calibration verification. Maintenance logs, safety valve testing records, and periodic leak checks should be retained per institutional biosafety policy.

Applications

• Routine sterilization of reusable glassware, metal instruments, and cotton gauze in teaching labs and small research facilities.
• Preparation of sterile culture media and buffers in microbiology and cell culture workflows where Class B or N-type sterilizers are not required.
• Decontamination of biohazardous waste (e.g., agar plates, pipette tips) prior to disposal in non-regulated settings.
• Supporting field operations in high-altitude locations where boiling point depression necessitates pressurized steam to achieve ≥121 °C sterilization temperatures.
• Supplemental water purification in industrial or remote settings—though not certified for potable water treatment, its ability to generate sustained 126 °C steam enables pathogen inactivation in source water when used with appropriate filtration pre-treatment.

FAQ

Does this sterilizer support programmable cycles or automatic phase transitions?
No. The YX-18LD relies on manual operation: users must monitor pressure/temperature visually, initiate venting manually, and time sterilization holds externally.
Can I sterilize liquids in bottles or flasks using this unit?
Yes—with strict adherence to liquid-cycle protocols: containers must remain uncapped or loosely covered, loaded upright, and cooled gradually post-cycle to prevent boil-over or container fracture.
Is third-party calibration of the pressure/temperature gauge required?
Yes. Per ISO 13485 and general lab quality standards, analog gauges should be verified annually against NIST-traceable references or at defined intervals based on usage frequency.
What maintenance is recommended for long-term reliability?
Daily removal of condensate from the chamber base; monthly inspection of gasket integrity and valve seating; annual safety valve functional test per manufacturer guidelines.
Does the unit include validation documentation or IQ/OQ templates?
No. Installation Qualification (IQ) and Operational Qualification (OQ) documents must be developed internally or by a qualified service provider in accordance with ISO 13485 or ISO 9001 frameworks.