OPTA™ FLOWMOTION01 Ultra Low Pressure Skid
OPTA-PERIPH FSRU/FLNG Ultra-Low Pressure Boosting Skid - The only small-scale cryogenic boosting pump system for ultra-low pressure LNG sampling, fully compliant with all LNG-related standards.
Overview
The equipment is an integrated skid-mounted design, with seven core modules working together to achieve compliant ultra-low pressure LNG sampling, adapted to the harsh conditions of FSRU/FLNG near-atmospheric pressure sampling.
The only compliant low-pressure sampling product
Minimum working pressure: 0.04 barg
Typical working pressure: 0.15 barg
The only small-scale cryogenic boosting pump
Strictly compliant with ISO 8943, EN 12838, GII Book etc.
IECEx and ATEX explosion-proof certification
Equipment certified by international type testing and explosion-proof certification
Core Components
Cryogenic Boosting Module
Equipped with proprietary cryogenic boosting pump, the core component of the cryogenic ultra-low pressure boosting skid, pressurizing ultra-low pressure saturated LNG to above 2.5 barg to ensure the medium remains in a supercooled liquid state.
Patented Vacuum Insulated Sampling Probe
High vacuum insulation structure with built-in proprietary booster, blocking heat input to prevent LNG phase change, achieving LNG supercritical state.
Vaporization Temperature Control Module
Flash vaporization of supercritical LNG, standard 500W dedicated vaporizer, power design gas flow meets 1500L/h, with precise temperature control components, stably controlling vaporization outlet temperature.
Fast Loop
Ultra-low temperature fast loop, achieving high throughput, high flow rate subcooled LNG pressurization.
Sealed Sampling Module
Equipped with stainless steel sealed sampler, with self-locking quick connectors, achieving sealed sample collection, eliminating leakage and component loss.
Auxiliary Monitoring Module
Includes discharge buffer, 0-10bar pressure monitoring instruments, temperature indicators, and safety components such as safety valves and check valves, real-time control of sampling parameters.
Explosion-Proof Control Module
Explosion-proof electrical control box, junction boxes and other complete explosion-proof electrical components, adapted to flammable and explosive hazardous conditions, ensuring on-site operation safety.
Core Process Advantages
Ultra-Low Pressure Condition Adaptability
Designed specifically for LNG subcooled near-atmospheric pressure scenarios, minimum working pressure 0.04 barg, typical working pressure 0.15 barg, breaking through conventional sampling equipment pressure limitations, with the process method of pressurizing first then sampling, accuracy and compliance far exceed similar products.
Full Process No Fractionation Distortion
No partial evaporation, no re-liquefaction process throughout the sampling process, fundamentally preventing premature vaporization of light hydrocarbon components, ensuring the sample is completely consistent with the original medium composition.
Adequate Redundancy for Pressurization Standards
Stably pressurizing ultra-low pressure LNG to above 2.5 barg, balancing compliance and operating condition redundancy.
Core Compliance Technology and Corresponding Standards
Addressing industry pain points of ultra-low pressure LNG sampling, this equipment meets the core requirements of various international authoritative standards through proprietary patent technology and precise design, completely solving the problem of low-pressure sampling component distortion. The equipment is certified by international type testing and explosion-proof certification, making it a dedicated compliant solution for FSRU/FLNG ultra-low pressure LNG sampling scenarios.
ISO 8943:2025 (Core International Standard for LNG Sampling)
Using cryogenic boosting pump to pressurize near-saturated LNG at phase change critical point, making it return to subcooled liquid state, while matching patented vacuum insulated sampling probe to block heat input, preventing LNG phase change, ensuring sampling point LNG is always in the subcooled liquid state as required by the standard. The sampling probe is close to the custody transfer point and vaporizer, shortening transmission path and reducing heat input, avoiding state changes during sample transmission, with no partial evaporation or re-liquefaction process throughout, strictly meeting the standard's core requirement of 'prohibiting pre-vaporization fractionation and maintaining sample representativeness'.
GII LNG Custody Transfer Handbook
Through cryogenic boosting pump, stably pressurizing ultra-low pressure LNG (minimum 0.04 barg, typical 0.15 barg) to above 2.5 barg, meeting the standard requirement of 'sampling point pressure > 2 barg'. The vaporizer precisely controls outlet temperature ≥ 20°C (actual application often sets 50°C), and power design gas flow meets 1500L/h, fully matching the standard requirements for electric heating vaporizer flow and temperature control, ensuring fairness in custody transfer.
EN 12838 (LNG Two-Phase Envelope Standard)
Through dual pressurization of built-in booster in sampling probe + cryogenic boosting pump, elevating LNG from saturated state to full liquid phase supercritical state, completely leaving the two-phase envelope, avoiding sample component distortion caused by gas-liquid mixed state, fully meeting standard requirements.
Hazardous Condition Explosion-Proof Design Standards
The equipment is equipped with explosion-proof control module, and the equipment is certified by international explosion-proof certification, fully complying with equipment use requirements for flammable and explosive hazardous conditions, ensuring on-site operation safety.