Tech Master GPS421 5 Port Single Stage Cylinder Inert Gas Regulator Panel Mounted 0 - 250 Bar

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£472.14 ex VAT
£566.57 inc VAT
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  • Single-stage piston cylinder inert gas regulator with five-port configuration
  • Maximum inlet pressure 300 bar, delivery pressure range 0-250 bar
  • FKM seal with encapsulated seat design and 10 micron 316L stainless steel filter
  • Panel mounted with base and side entry points, 1/4″ NPT female connections
  • Suitable for technical grade gases up to 4.5 purity (99.995%), weighs 1.5 kg
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The Tech Master GPS421 Inert Gas Regulator, is a high-quality single-stage piston cylinder regulator with an FKM seal, designed for controlling non-corrosive or toxic, technical grade gases up to 4.5 purity (99.995%).

This regulator is particularly suitable for applications where slight pressure variation due to decreasing cylinder pressure is acceptable.

Its design facilitates panel mounting, making it ideal for a variety of industrial, laboratory, and research applications.

Key Features

  • Five-Port Configuration: Provides extensive connection flexibility for various system requirements.
  • Panel Mounting Capabilities: Offers easy integration into control panels and systems.
  • Encapsulated Seat Design & Low Wetted Surface Area: Minimizes the risk of gas contamination, essential for maintaining gas purity.
  • Full Range of Inlet and Outlet Fittings: Ensures compatibility with diverse gas types and connections.
  • Base and Side Entry Points: Provides versatility in installation and connection configurations.

Typical Applications

  • Industrial Processes: Suitable for applications requiring precise control of inert gases.
  • Panel-Mounted Systems: Ideal for setups where space-saving and integration into control panels are needed.
  • Laboratories and Technical Workspaces: Appropriate for environments where precise gas flow control is crucial.
Inlet 300 Bar 1/4″ NPT Female
Outlet 0-250 Bar 1/4″ NPT Female
Ports 1/4″ NPT Female
Port Configuration Five port configuration
Maximum Inlet Pressure 300 bar (4350 PSI)*
Delivery Pressure Range 250 bar (3630 PSI)
Flow Coefficient (Cv) 0.088
FKM Seal Yes
Weight 1.5 kg (3.3 lb)**
Gauges 50mm (2″) Diameter
Temperature Range -20°C to +60°C (-4°F to +140°F)
Mounting Type Panel Mounted – Front and rear panel mounting capabilities
Option L
Body Brass Barstock
Bonnet Brass Barstock
Piston Brass
Seal FKM / EPDM
Seat Nylon
Filter 10 Micron 316L Stainless Steel
Seat Design Encapsulated seat design

* 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

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 250 bar
Purity Grade Grade 4.5
Stages Single Stage
Gas Type Inert

Tech Master GPS420 Series - Technical Datasheet

Download PDF

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.

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Tech Master GPS421 5 Port Single Stage Cylinder Inert Gas Regulator Panel Mounted 0 - 250 Bar Tech Master GPS421 5 Port Single Stage Cylinder Inert Gas Regulator Panel Mounted 0 - 250 Bar
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