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102-B series 

General purpose - dome loaded

Pressure reducing regulator

General info

102-B Series - General purpose - dome loaded regulator

Presreg Valve's 102-B series is a dome loaded, downstream pressure reducing regulator.  A large diameter piston gives accurate pressure control over a wide range of outlet pressures. 

The simplistic design and rugged construction help give this regulator excellent reliability and performance over a long service life.  Large outlet pressure range of 0 - 420 bar outlet. 

Hydrogen compatibility is offered with the stainless steel 316L material option, and oxygen compatibility is available with the aluminium bronze material option. 

Additional options make this regulator a versatile solution for many applications

Bespoke material and porting configurations can also be supplied.  

Features and benefits

- Versatile, general purpose regulator with multiple material and porting options available 

- Large outlet pressure range of 0 - 420 bar outlet. 

- Large diameter piston gives accurate pressure control over a wide range of outlet pressures

- The balanced main valve will ensure steady outlet pressure, even with a varying inlet pressure. 

- Rugged, reliable and time proven design

- Modular construction allows easy servicing

- External line dome loading

- Spares & service kits available.

Common applications

- 350 bar Hydrogen refuelling infrastructure.

- Used for Oxygen gas service with the aluminium bronze material option


102-B series - spec tab - product spec b

Panel mounting details

Maximum panel thickness:  5.0 mm

102-B series - spec tab - panel.JPG
102-B series - spec tab - panel mount assembly.JPG


Use the tool below to identify the type of spares kit required, then contact the sales office, quoting the names of the spares kits required and the serial number of the regulator.

The sales office will then provide a spares kit part number and price.


102-B Series – Available spares kits - Hover over a option below to highlight the parts supplied in the kit:

The 102-B Series has a modular design, meaning the main valve sub assembly can be replaced without removing the regulator from the line.

ALWAYS refer to operating and maintenance instructions before carrying out any maintenance


Factory servicing is available on request.

Contact sales office with serial number for details and price.


Please contact office if you require any additional information. 

102-B series - spares tab - dome seal spares kit.JPG

Dome seals spares kit

102-B series - spares tab - Main valve spares kit.JPG

Main valve sub assembly

102-B series - spares tab - others.JPG



Click the links below to download documents




Additional document downloads


Click on a link to download a file. 


Please contact office if you require any additional information.  

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102-B series - Datasheet

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102-B series - General assembly drawing

102-B series - Operating & Maintenance instructions

102-B series - List of available spares

102-B series - 3D STP Model

PRESREG Valves product brochure

- Use tool to generate part number

- Contact sales office with part number for a price

Ordering info

Use the tool below to generate a part number. 

Contact the sales office with part number for prices.

We are happy to offer assistance and advice on generating part numbers and advising the right regulator for the right application.  

Contact the sales office for more information.  Contact Us.

The following features are standard on all models:

-  Maximum inlet pressure:  420 bar

-  External line dome loaded

102-B series - Ordering tab - part number generator.jpg
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