Cole-Parmer 98202-03 Multi-Gas Pressure Regulator

Overview

The Cole-Parmer 98202-03 Multi-Gas Pressure Regulator is an engineered precision control device designed for reliable, stable pressure reduction and delivery of multiple industrial and laboratory-grade gases—including nitrogen, oxygen, argon, helium, carbon dioxide, and compressed air—within process-critical environments. Utilizing a dual-stage diaphragm-regulation architecture, it delivers consistent outlet pressure despite fluctuating inlet pressures and variable flow demands. This regulator is specifically configured for applications requiring gas switching or parallel supply lines without cross-contamination risk, making it suitable for analytical instrumentation feed systems (e.g., GC, ICP-MS, FTIR), pilot-scale reactors, environmental monitoring stations, and cleanroom utility distribution networks.

Key Features

• Dual-stage stainless steel diaphragm design ensures high-pressure stability (<±1.5% of setpoint over 10–100% flow range) and minimizes downstream pressure creep.
• Gas-specific internal wetted materials: 316 stainless steel body, PTFE-sealed diaphragms, and nickel-plated brass fittings—compatible with non-corrosive and mildly reactive gases per CGA G-4.1 guidelines.
• Integrated dual-gauge configuration: front-mounted inlet and outlet pressure gauges with 0–3000 psig and 0–100 psig ranges respectively, both with 2.5% full-scale accuracy and glycerin-filled dampening.
• Manual gas selection via three-position lever (Gas A / Off / Gas B) enables rapid, leak-tight switching between two independent supply sources without tools or recalibration.
• Compact modular footprint (6.5″ H × 4.2″ W × 3.8″ D) supports panel-mount or benchtop installation; NPT 1/4″ inlet/outlet ports conform to ANSI/ASME B1.20.1 standards.
• Complies with OSHA 1910.101 (compressed gas handling), CGA P-1 (regulator safety), and ISO 8573-1:2010 Class 4 purity requirements when used with certified filtration upstream.

Sample Compatibility & Compliance

The 98202-03 is validated for use with Grade 4.5 (99.995%) and higher purity gases across common industrial and research applications. It is not rated for acetylene, chlorine, ammonia, or hydrogen sulfide due to material compatibility limitations. Regulatory alignment includes support for GLP/GMP documentation workflows: serial-number traceability, calibration certificate availability (NIST-traceable upon request), and mechanical lockout capability for maintenance procedures. While the unit itself does not incorporate electronic logging, its mechanical design facilitates integration into FDA 21 CFR Part 11-compliant systems when paired with external pressure data loggers meeting audit trail requirements.

Software & Data Management

This is a purely mechanical, analog pressure regulation device with no embedded electronics, firmware, or digital interfaces. As such, it requires no software installation, driver configuration, or network connectivity. All operational parameters—including setpoint adjustment, gas selection, and visual pressure monitoring—are executed manually via calibrated adjusting screws and mechanical gauges. For automated data capture, users may integrate third-party analog pressure transducers (e.g., 4–20 mA output sensors) mounted downstream, feeding into SCADA, DCS, or LabVIEW-based acquisition platforms. Calibration records and maintenance logs should be retained per ISO/IEC 17025:2017 clause 7.7 for metrological traceability.

Applications

• Gas supply regulation for gas chromatography (GC) carrier and detector gases, ensuring retention time reproducibility and baseline stability.
• Controlled purge and blanket gas delivery in semiconductor wafer fabrication tools and vacuum chamber venting sequences.
• Calibration gas manifold management in EPA Method 25A and EN 14181-compliant CEMS (Continuous Emission Monitoring Systems).
• Multi-gas feed control in catalytic testing rigs where sequential exposure to oxidizing and inert atmospheres is required.
• Backup gas source switchover in hospital medical air systems compliant with NFPA 99 Chapter 5 and HTM 02-01 Annex B.

FAQ

Is the 98202-03 suitable for hydrogen service?
No. Hydrogen embrittlement risk precludes use with pure hydrogen or hydrogen blends above 1% concentration. Consult Cole-Parmer Technical Support for alternative regulators with Monel or Inconel wetted parts.
Can this regulator be used outdoors or in high-humidity environments?
Yes, provided it is installed within an IP54-rated enclosure or sheltered location. The glycerin-filled gauges prevent fogging, but prolonged exposure to condensation may affect diaphragm longevity.
Does Cole-Parmer provide factory calibration certificates with shipment?
Standard units ship without calibration documentation; however, NIST-traceable calibration with as-found/as-left data is available as an optional add-on (Order Code: CAL-98202-03).
What is the maximum recommended operating temperature range?
–20 °C to +60 °C ambient, with inlet gas temperature not exceeding 65 °C to avoid diaphragm thermal drift.
Is replacement of internal seals possible in the field?
Yes—seal kits (Part No. 98202-SEAL-KIT) are available and include step-by-step instructions aligned with ASME BPE-2022 Section 6.3 for sanitary replacement procedures.