Overview
The ProStar PRS301223 is a high-purity, dual-stage pressure regulator designed for critical gas flow control in industrial and laboratory applications. Built for specialty gases and high-purity operations, this regulator combines robust construction with precision metering to ensure stable outlet pressure regardless of inlet pressure fluctuations. The Platinum-series design makes it ideal for welding, metalworking, gas system charging, and other demanding applications requiring consistent pressure regulation.
Key Features
- Dual-gauge design displays both inlet and outlet pressure simultaneously for real-time monitoring
- High-pressure inlet capacity up to 4000 PSI accommodates high-demand gas supply systems
- Controlled outlet pressure of 100 PSI ensures stable downstream performance
- Two-stage regulator design minimizes pressure fluctuations and maintains consistent flow
- Brass body construction withstands demanding industrial environments
- Suitable for non-corrosive and high-purity gas applications including specialty gases
Technical Specifications
| Specification | Value |
| Part Number | PRS301223 |
| Brand | ProStar (Praxair/Linde) |
| Maximum Inlet Pressure | 4000 PSI |
| Maximum Outlet Pressure | 100 PSI |
| Regulator Type | Dual-Stage, Dual-Gauge |
| Body Material | Brass |
| Gauge Type | Glycerin-filled (standard) |
| Gas Compatibility | Non-corrosive, high-purity gases |
| Mounting | Front Panel |
| Number of Stages | Two |
Typical Applications
- Welding & Metal Fabrication: Precise gas delivery control for TIG, MIG, and oxy-fuel welding
- Gas System Charging: Laboratory and industrial gas system initialization and maintenance
- Specialty Gas Supply: High-purity nitrogen, argon, helium, and other non-corrosive gases
- Equipment Supply: Carrier gas delivery for analytical instruments and chromatography systems
- Industrial Manufacturing: Controlled gas flow for CNC, plasma cutting, and precision metalworking
Compatibility & Replacements
Compatible With
- Praxair and Linde gas cylinder systems
- High-pressure gas delivery lines (4000 PSI rated)
- Laboratory gas control panels and manifolds
- Industrial welding and metalworking equipment
- Specialty gas applications requiring stable pressure metering
Replaces / Drop-In Replacement For
- ProStar PRS301223 variants with alternate gauge ranges
- Older dual-gauge regulators requiring upgrade to 4000 PSI inlet capacity
- Verify compatibility with your specific inlet connection (CGA number) before ordering
Works With
- Standard CGA gas cylinder connections
- Front-panel mounted regulator systems
- High-purity gas delivery infrastructures
- Manual pressure adjustment and metering systems
- Industrial gas supply networks rated 4000 PSI and below






















