Gas Arc Tech Master GPL421 Inert Gas Line Regulator Single Stage Piston 4 Port 300 bar Inlet 0-20 bar
- 4 port single stage piston line regulator for inert gases up to grade 4.5 purity
- Maximum inlet pressure 300 bar, delivery pressure range 0-20 bar
- Inlet G3/8 BSP R/H brass male, outlet 1/4 NPT female connections
- FKM seal, brass body and piston, 10 micron stainless steel filter
- Operating temperature range -20°C to +60°C, weighs 1.4 kg

Designed for secondary pressure gas control of non-corrosive or toxic, technical grade gases up to grade 4.5 purity (99.995%), on gas distribution systems.
Single Stage Piston Line Regulator, FKM Seal.
Features & Benefits
- Four port configuration
- Front & rear panel mounting capabilities
- Encapsulated seat design
- Low wetted surface area
- Full range of inlet and outlet fittings
- Side entry
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
| Regulator Type | 4 Port Single Stage Piston Line Regulator |
| Maximum Inlet Pressure | 300 bar (4350 PSI) |
| Delivery Pressure Range | 0-20 bar (0-300 PSI) |
| Flow Coefficient (Cv) | 0.1 |
| Temperature Range | -20°C to +60°C (-4°F to +140°F) |
| Inlet Connection | G3/8 BSP R/H Brass Male |
| Outlet Connection | 1/4 NPT Female |
| Gauge Port Size | 1/4″ NPT Female |
| Gauge Diameter | 50mm (2″) |
| Body | Brass Barstock |
| Bonnet | Brass Barstock |
| Piston | Brass |
| Seal | FKM (Fluoroelastomer) |
| Seat | Polyamide (Nylon®) |
| Filter | 10 Micron 316L Stainless Steel |
| Weight | 1.4 kg (3.1 lb) |
| Brand | Gas Arc |
| Entry Point | Side Entry |
| Outlet Connection | G3/8" BSP |
| Inlet Pressure | 300 bar |
| Outlet Pressure | 20 bar |
| Purity Grade | Grade 4.5 |
| Stages | Single Stage |
| Gas Type | Inert |
A 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.
Gas Arc Tech Master GPL421 Inert Gas Line Regulator Single Stage Piston 4 Port 300 bar Inlet 0-20 bar Get in touch
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