JASCO SCF-VCH-BP TAB22A-4/PURF2-LF W/ 2L81-000001-14 2L81-05

Product Details

SCF-VCH-BP TAB22A-4/PURF2-LF W/2L81-000001-14 2L81-050039-41 396uW, 4022.454.71615 5517D-C19 6 Product Description

The JASCO SCF-VCH-BP TAB22A-4/PURF2-LF is a precision-engineered Valve Change Unit designed for seamless integration within supercritical fluid chromatography (SFC) and high-performance fluid control architectures. As a system-matched component, it serves a critical role in the fluid switching and flow path management layer of analytical and process control systems. Its design ensures compatibility with JASCO's broader SFC platform, enabling engineers and system integrators to maintain signal integrity, flow consistency, and long-term operational reliability across multi-module deployments.

In modern industrial and analytical control environments, the valve change unit is not a standalone device — it is a functional node within a layered automation architecture. The SCF-VCH-BP TAB22A-4/PURF2-LF is engineered to operate in concert with upstream pressure regulation, downstream detection, and lateral communication modules, ensuring that every switching event is synchronized with the broader system state. This contextual integration capability is what distinguishes JASCO's SFC valve components from generic alternatives.

The SCF-VCH-BP TAB22A-4/PURF2-LF is designed to function as part of JASCO's integrated SFC automation platform. In a complete system deployment, this valve change unit interfaces directly with the JASCO PU-2080-CO2 CO2 delivery pump and the JASCO PU-2080-SF modifier pump, ensuring precise binary fluid composition at each switching event. The unit's TAB22A-4 valve body coordinates with the JASCO BP-2080-SF back pressure regulator to maintain stable system pressure during column switching, preventing pressure transients that could compromise separation quality or detector baseline stability.

At the detection layer, the valve change unit works in sequence with the JASCO UV-2075 UV/Vis detector and the JASCO CD-2095 circular dichroism detector, where precise timing of valve actuation is essential for accurate peak attribution and fraction collection. The PURF2-LF purge/flush module integrated into this unit enables rapid solvent changeover between analytical runs, reducing system downtime and maintaining column integrity across extended batch sequences.

For preparative and semi-preparative SFC applications, the SCF-VCH-BP TAB22A-4/PURF2-LF is commonly deployed alongside the JASCO FC-2058-SF fraction collector, where valve switching logic must be tightly synchronized with detector trigger signals. The sub-assemblies 2L81-000001-14 and 2L81-050039-41 provide the mechanical and fluidic interface between the valve body and the system manifold, ensuring leak-free connections rated for SFC operating pressures. Additional system components such as the JASCO LC-NetII/ADC system controller and the JASCO ChromNAV chromatography data system provide the supervisory control layer, enabling automated method execution, valve sequence programming, and real-time system diagnostics.

In multi-column or column-switching SFC configurations, the SCF-VCH-BP TAB22A-4/PURF2-LF can be paired with additional JASCO SCF-VCH series valve modules to create redundant or parallel flow paths, supporting continuous operation in high-throughput screening environments. This modular expandability is a core design principle of the JASCO SFC platform, allowing system architects to scale capacity without redesigning the base control architecture.

The JASCO SCF-VCH-BP TAB22A-4/PURF2-LF finds application across a broad range of industries where supercritical fluid technology and precision fluid control are critical to process integrity:

Pharmaceutical Manufacturing & QC: In pharmaceutical production and quality control laboratories, SFC systems equipped with this valve change unit are used for chiral separation, impurity profiling, and API purification. The 12-Month Warranty and global supply availability ensure that production schedules are not disrupted by component lead times.

Natural Products & Food Safety: Extraction and analysis of natural compounds — including cannabinoids, lipids, and fat-soluble vitamins — rely on SFC architectures where valve switching precision directly impacts yield and purity. The SCF-VCH-BP TAB22A-4/PURF2-LF supports these workflows with reliable, repeatable switching performance.

Petrochemical & Energy Sector: In petrochemical process laboratories, SFC is increasingly used for hydrocarbon group-type analysis and wax characterization. The valve change unit's compatibility with high-pressure SFC conditions makes it suitable for these demanding analytical environments.

Environmental Monitoring: Water treatment and environmental testing facilities use SFC for trace contaminant analysis. The modular design of the SCF-VCH-BP TAB22A-4/PURF2-LF allows it to be integrated into automated sampling and analysis platforms, supporting continuous monitoring workflows.

Academic & Research Institutions: Universities and research institutes deploying JASCO SFC platforms for method development benefit from the contextual integration capability of this valve unit, which allows rapid reconfiguration of flow paths without system downtime.

Q1: Is the SCF-VCH-BP TAB22A-4/PURF2-LF compatible with existing JASCO SFC systems, and what are the key integration requirements? A: Yes. The SCF-VCH-BP TAB22A-4/PURF2-LF is designed as a system-matched component for JASCO's SFC platform. Integration requires connection to the JASCO SFC control bus via the included sub-assemblies (2L81-000001-14 and 2L81-050039-41), and compatibility with the JASCO LC-NetII/ADC or equivalent system controller. No additional interface modules are required for standard single-column configurations. For multi-column or column-switching setups, consult the JASCO SFC system architecture guide for valve sequencing parameters.

Q2: What maintenance schedule is recommended for long-term reliability, and how does the 12-Month Warranty apply to wear components? A: JASCO recommends periodic inspection of valve rotor seals and purge line connections at intervals defined by the system's operating pressure and solvent exposure profile. The 12-Month Warranty covers manufacturing defects in the valve body, sub-assemblies, and PURF2-LF module under normal operating conditions. Wear components subject to routine replacement (rotor seals, ferrules) are covered for defects present at time of delivery. Preventive maintenance kits are available to support long-term operational continuity.

Q3: What is the inventory availability and lead time for the SCF-VCH-BP TAB22A-4/PURF2-LF, and can it be sourced as part of a system-level order? A: This unit is maintained in stock for global distribution, with shipping tested and verified prior to dispatch. It can be sourced as a standalone replacement component or as part of a complete JASCO SFC system order. For system-level procurement, the valve change unit can be bundled with compatible pumps, detectors, back pressure regulators, and fraction collectors to ensure full architectural compatibility. Contact our team for lead time confirmation and system-level quotation support.