Tech Master GPS421 5 Port Single Stage Piston Cylinder Inert Gas Regulator Panel Mounted 0-20 Bar
- Single stage piston cylinder inert gas regulator, 5 port panel mounted configuration
- Delivery pressure range 0-20 bar, maximum inlet pressure 300 bar
- Suitable for technical grade gases up to 4.5 purity (99.995%)
- Brass barstock body with FKM seal, 10 micron 316L stainless steel filter
- Inlet and outlet connections 1/4″ NPT female, base and side entry options

Intended for primary pressure gas control of non-corrosive or toxic, technical grade gases up to grade 4.5 purity (99.995%), on applications where slight pressure variation from decreasing cylinder pressure is acceptable.
Single Stage Piston Cylinder Regulator, FKM Seal.
4.5 Purity Single Stage Brass Barstock Piston Cylinder Regulators.
Features & Benefits
- Tech Master Single Stage Inert Gas Regulator
- Designed for Panel Mounting
- Five port configuration
- Front and rear panel mounting capabilities
- Encapsulated seat design
- Low wetted surface area
- Full range of inlet and outlet fittings
- Base and side entry
* Subject to cylinder connection. ** Cylinder connection not included.
Please note: If you require a test certificate with your regulator, it must be ordered at the same time. Our certification product can be found here: Gas Arc Regulator Test Certificate
Data Sheet can be found in Documents Section
Part Number: 3960018504
| Inlet | 300 Bar 1/4″ NPT Female |
| Outlet | 0-20 Bar 1/4″ NPT Female |
| Port Size | 1/4″ NPT Female |
| Maximum Inlet Pressure | 300 bar (4350 PSI)* |
| Delivery Pressure Range | 0-20 bar (300 PSI) |
| Flow Coefficient (Cv) | 0.088 |
| Gauges | 50mm (2″) Diameter |
| Weight | 1.5 kg (3.3 lb)** |
| Temperature Range | -20°C to +60°C (-4°F to +140°F) |
| Configuration | 5 Port Single Stage Piston Cylinder |
| Body | Brass Barstock |
| Bonnet | Brass Barstock |
| Piston | Brass |
| Seal | FKM |
| Seat | Nylon |
| Filter | 10 Micron 316L Stainless Steel |
| Brand | Gas Arc |
| Entry Point | Base Entry, Side Entry |
| Inlet Connection | 1/4” NPT |
| Outlet Connection | 1/4" NPT |
| Inlet Pressure | 300 bar |
| Outlet Pressure | 20 bar |
| Purity Grade | Grade 4.5 |
| Stages | Single Stage |
| Gas Type | Inert |
Download Datasheet
Download PDFA carriage charge is applied to orders, for standard 1-2 day shipments to mainland destinations within the United Kingdom. Other destinations and premium services are available but subject to additional freight charges.
Tech Master GPS421 5 Port Single Stage Piston Cylinder Inert Gas Regulator Panel Mounted 0-20 Bar Get in touch
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