For over 50 years, our partner GO Regulator has been a leading designer and manufacturer of standard and custom single/two stage pressure regulators, back pressure regulators and heated vaporising pressure regulators for the Analytical Instrumentation, Petrochemical, Oil & Gas and Specialty Gas markets.

Today, GO continues to offer a versatile line of time proven products designed to fulfil a wide range of typical and bespoke gas and liquid application requirements. In several series, a standard 316L body material is used to facilitate a variety of threaded/welded connections, with optional materials of Brass, Monel®, Hastelloy® C-276, or Titanium construction being offered.

In addition, a variety of seat materials, orifice sizes and pressure control ranges allow the end user to utilise our models for a broad spectrum of capabilities. The “customer focused” philosophy, supported by experienced people enables GO Regulator to persevere in providing viable product solutions to the challenging applications of today at competitive prices.

 

Core Pressure Regulator Models

Virtually all requirements involved for many applications can be fulfilled with approximately fifty GO fluid control product models and associated optional features. Below we are highlighting some of the key/core models for most tasks and for our complete range of GO products please click here.

 

GO PR1/PR2 Pressure Regulators

PR1/PR2 Series
Standard Pressure Reducing Regulators

GO PR7/PR7LF/PR7ULF Pressure Regulators

PR7/PR7LF/PR7ULF Series
High and Low Flow
Pressure Regulators

GO PR50/PR57/PR59 Pressure Regulators

PR50/PR57/PR59 Series
Ultra High Pressure
Regulators

GO CYL2/CYL20 Pressure Regulators

CYL2/CYL20 Series
Two/Dual Stage Cylinder Pressure Regulators

GO BP3 Pressure Regulators

BP3 Series
Standard Back Pressure
Regulators

GO BP8/BP8LF Pressure Regulators

BP8/BP8LF Series
High and Flow Back Pressure Regulators

GO BP60/BP66 Pressure Regulators

BP60/BP66 Series
Ultra High Back
Pressure Regulators

GO SPR/SBPR Pressure Regulators

SPR/SBPR Series
Subatmospheric Pressure
Regulators

GO CPR1/CBP3/MR1 Pressure Regulators

CPR1/CBP3/MR1 Series
Compact and Miniature Pressure Regulators

GO HPR2/CV/DHR Pressure Regulators

HPR2/CV/DHR Series
Electrically and Steam Heated Pressure Regulators

GO PR9 Pressure Regulators

PR9 Series
High Temperature
Pressure Regulators

GO COM2B Pressure Regulators

COM2B Series
Crossover/Autochange
Over Manifolds

 

Types & Variations

There are lots of different types of regulators that can be used for different tasks in a variation of applications. Some of the most common that we are working with include:

 

For a full breakdown of these different principles of operation can work for you, including detailed explanations of how they work, please visit our blog post by clicking here.

 

Our Features & Benefits

All of our GO regulators offer end users with a unique set of features and benefits. Taking our time-tested and most popular PR1 series, we can provide the following unique advantages over market-leading competitors:

Features & Benefits of Pressure Regulators

For more information on the different advantages to end users and for detailed breakdowns of what models are best for gas/liquid use in various applications, please visit our blog post by clicking here.

 

Comparison of our Models

For a summary overview of how some of our core pressure reducing and back pressure models compare on technical specifications, please see the below quick reference chart:

Model Description

Max. Inlet
Pressure

Control Pressures Seat/Actuator
Materials
Flow Coefficients (Cv) Port Types Type/Applications
PR1/PR2

Standard Pressure Reducing
Regulator

3,600 PSIG up to 6,000 PSIG 0 – 10 PSIG
up to 0 – 750 PSIG
Tefzel, CF PTFE, Polyimide, PCTFE, High Density PTFE or PEEK 0.06, 0.20, 0.025 or 0.50 ¼” FNPT, 3/8” FNPT or Tube Stubs Diaphragm Actuated for Gas and Liquid Control
PR7

High Flow Pressure
Reducing Regulator

300 PSIG up to 3,600 PSIG 0 – 1 PSIG up to 0 – 500 PSIG Viton, PTFE, Kalrez or PEEK 1.10 ¼” FNPT, 3/8” FNPT, ½” FNPT or Tri-Clover Diaphragm Actuated for Gas and Liquid Control
PR7LF

High Sensitivity Pressure
Reducing Regulator

300 PSIG up to 3,600 PSIG 0 – 6 PSIG up to 0 – 250 PSIG Tefzel, Viton, PCTFE, High Density PTFE or Kalrez 0.06, 0.20, 0.025 or 0.50 ¼” FNPT, 3/8” FNPT, ½” FNPT or Tri-Clover Diaphragm Actuated for Gas and Liquid Control
MR1

Ultra Miniature Pressure
Reducing Regulator

3,600 PSIG up to 6,000 PSIG 0 – 10 PSIG up to 0 – 500 PSIG Tefzel, PCTFE or PEEK 0.06 or 0.025 1/8” FNPT, 1/16” FNPT or Surface Mount Diaphragm Actuated for Gas and Liquid Control
PR50

High Pressure Reducing
Regulator

3,600 PSIG up to 6,000 PSIG 0 – 500 PSIG up to 0 – 2,000 PSIG Tefzel, Polyimide, PCTFE, High Density PTFE or PEEK 0.06, 0.20 or 0.025 ¼” FNPT, 3/8” FNPT or Tube Stubs Diaphragm Actuated for Gas and Liquid Control
PR56/PR57

Ultra High Pressure
Reducing Regulator

10,000 PSIG 0 – 250 PSIG up to 0 – 10,000 PSIG Polyimide or PEEK 0.05 or 0.20 ¼” FNPT, 3/8” FNPT or Tube Stubs Piston Actuated for Gas and Liquid Control
PR59

High Pressure/
Flow Regulator

1,000 PSIG up to 4,000 PSIG 0 – 250 PSIG up to 0 – 4,000 PSIG PCTFE or Teflon 1.20 ½” FNPT or ¾” FNPT Piston Actuated for Gas and Liquid Control
CYL20

Dual Stage Cylinder
Pressure Regulator

3,600 PSIG up to 6,000 PSIG 0 – 10 PSIG up to 0 – 500 PSIG Tefzel, PCTFE, High Density PTFE or PEEK 0.06, 0.20, 0.025 or 0.50 ¼” FNPT, 3/8” FNPT or Tube Stubs Dual Diaphragm Actuated for Gas and Liquid Control
BP3

Standard Back Pressure
Regulator

3,600 PSIG 0 – 250 PSIG up to 0 – 1,000 PSIG Viton, Kalrez, High Density PTFE, Polyimide or PEEK 0.20, 0.04, 0.30, 0.005 and more ¼” FNPT, 3/8” FNPT or Tube Stubs Diaphragm Actuated for Gas and Liquid Control
BP8

High Flow Back Pressure Regulator

500 PSIG 0 – 250 PSIG up to 0 – 500 PSIG Viton, PEEK or Glass-Filled PTFE 1.20, 0.70 or 0.40 ¼” FNPT, 3/8” FNPT, ½” FNPT or Tube Stubs Diaphragm Actuated for Gas and Liquid Control
BP8LF

High Sensitivity Back Pressure Regulator

500 PSIG 0 – 6 PSIG up to 0 – 500 PSIG Viton, High Density PTFE, Polyimide, CF PTFE, Kalrez 0.20, 0.04, 0.30, 0.005 and more ¼” FNPT, 3/8” FNPT or Tube Stubs Diaphragm Actuated for Gas and Liquid Control
BP66

Ultra High Back Pressure Regulator

10,000 PSIG 0 – 2,000 PSIG up to 0 – 10,000 PSIG Polyimide or PEEK 0.04, 0.12 or 0.01 ¼” FNPT, 3/8” FNPT or Tube Stubs Piston Actuated for Gas and Liquid Control

 

*Most commons selections have been listed and standardised options are highlighted in bold. For special options not listed please contact us.  

 

Our regulators are also available with a huge variety of useful optional extras, including:

  • Extra Inlet and Outlet Ports – to meet almost any piping configuration possible.
     
  • Panel Mounting – either from base mounting threads (for mounting brackets or ‘step brackets’) or panel ring(s) underneath the hand wheel for flush mounting into a pre-drilled wall panel.
     
  • Self-Relieving – an integral mechanism which operates as a highly sensitive relief valve to prevent downstream over-pressurisation, as well as venting the downstream to atmosphere as the outlet pressure setting is decreased.
     
  • Diaphragm-Attached-Poppet – a threaded poppet/diaphragm assembly is useful in applications where contamination is present in the media. This tends to cause a build-up of contamination on the regulator seat, causing leakage through from the inlet side to the outlet side (rising outlet pressure. This configuration forces the diaphragm upwards to prevent rising outlet pressure and may also help in applications where positive shut-off is desired.
     
  • Cleaning and Coating – cleaning standards for Oxygen Service and Sulfinert Coating.
     
  • Liquid Service – special liquid service diaphragms and higher micron inlet filter screens (gauze type) to help combat effects of water hammer or particulate filtration.
     
  • Tamper-Proof – optionally replace the standard adjustable hand knob/wheel  for a tamper-proof acorn nut, allowing operators to set to their desired control pressure and lock it off to prevent any undesired adjustments.

 

Flow Sizing

For an itemised list of information on what is needed to correctly size, select and specify a regulator, please reference the below checklist:

1 Pressure Regulated* Pressure Reducing or Back Pressure?
2 Type of Regulation Line or Bottle?
3 Preferred Materials 316L, Brass, Monel®, Hastelloy® or Other?
4 Upstream Pressure (P1)* Eg. in PSIG/BARG (Min/Normal/Max)
5 Downstream Pressure (P2)* Eg. in PSIG/BARG (Min/Normal/Max)
6 Flow Rate (Q)* Eg. in SCFM/LPM (Min/Normal/Max)
7 Temperature (T)* Eg. °C/°F (Min/Normal/Max)
8 Media (M)* Eg. Nitrogen/Air/Argon/Water
9 Line Size/Connection Size Eg. ¼” or ½”
10 Preferred Connection Type Eg. NPT, BSPP, VCR, Tube OD Compression
11 Flow Direction Eg. Left to Right or Right to Left
12 Mounting Base Mounting, Panel Mounting or None?
13 Pressure Indicators? Are Pressure Gauges or Sensors needed?
14 Fittings or Connectors? Are Cylinder Connectors or Adapters needed?
15 Other Accessories? Any Flexible Hoses, Relief Valves, Filters or Other?
16 Application Details Eg. For a Nitrogen Gas Cylinder
17 Special Notes/Requirements ??

 

*Minimum required information has been marked with an asterisk.

 

For more detailed considerations on how to size and select a pressure regulator, including flow coefficient (Cv) and max. flow rate calculation tools, please click here to download our sizing brochure. Our calculation tools allow you to correctly select the required flow coefficient (Cv) value for your pressure reducing or back pressure units. These software tools will utilise your process data to calculate the Cv so that you can achieve your required flow rate

Some of the most common flow formula abbreviations and definitions include:

  • Cv - Flow coefficient for regulators and valves that expresses flow capabilities of a unit at full open condition. For liquids, this coefficient is defi ned as the flow of water at 60°F in gallons per minute at a pressure drop of one PSIG. For gases, this coefficient is defined as the flow of air at standard conditions in standard cubic feet per minute for each PSIG of inlet pressure.
     
  • SL - Specific gravity of liquids relative to water, both at standard temperature of 60°F. (Specific gravity of water = 1.0 @ 60°F).
     
  • Sg - Specific gravity of a gas relative to air; equals the ratio of the molecular weight of the gas to that of air. (Specific gravity of air = 1.0 @ 60°F).
     
  • P - Line pressure (psia).
     
  • P1 - Inlet pressure expressed in PSIA.
     
  • P2 - Outlet pressure expressed in PSIA.
     
  • DP - Differential pressure (P1 – P2).
  • PSIA - Absolute pressure which is gauge pressure (PSIG) plus 14.7 (atmospheric pressure).
     
  • QL - Liquid flow in gallons per minute (GPM).
     
  • Qg - Gas flow in standard cubic feet per minute (SCFM). (At standard conditions of 60°F and 14.7 psia).
     
  • Q - Volume flow rate in cubic feet per minute (CFM).
     
  • M - Mass flow rate in pounds per minute (lbs/min.).

 

Installations & Applications

Our GO pressure regulators are used in an enormous selection of applications and industries, from industrial to analytical/high-tech to UHP environments. Some of the most regular industries and applications we work with can include:

  • Chemical & Petrochemicals – including research laboratories, coating systems and pilot plants.
     
  • OEM Equipment & Machinery – including pollution control equipment, gas analysers, test stands, oil and gas control skids and gas turbine controls.
     
  • Oil & Gas – including well heads, pipeline transportation, oil and gas exploration, offshore platforms or refining facilities.
     
  • Power Generation – including fossil fuel power generation, nuclear power plants, specialty gas and steam plants.
     
  • Pulp & Paper – including batch or continuous processing, fluid transfer, mixing or plant utilities.
     
  • Calibration Gas – including sample conditioning systems, gas blanketing systems and pressure let down stations.

 

Some common installations for pressure reducing and back pressure regulators are shown below:

Typical Installation Setup for Pressure Regulators

For additional downloads on bottle connector compatibility, physical properties of gases and guides on how to restrict a regulator, please click here to visit our resources centre.

 

Custom & Bespoke Designs

Over the years we have been involved with many specialist and niche applications, providing completely customised and
bespoke solutions tailored specifically to customer requiremenCustom Pressure Regulatorsts.

Most recently, we worked in partnership with one of our customers who is a leader in fusion power research and sustainable nuclear energy solutions, and they approached us with some requirements for customised pressure regulator assemblies according to their specifications.

We delivered our CYL-20 dual-stage high cylinder pressure regulators, fitted with both standard mechanical 232.30 pressure gauges for visual confirmation and IS-3 ATEX Exia intrinsically safe pressure sensors for remote monitoring, suitable cylinder connectors and twin ferrule compression fittings, with interchangeable inlet ports for bottom or side entry possibilities.

We were able to act as a complete solution provider for our customer, to procure, supply, assemble and test all assemblies in-house at our headquarters. We are always happy to work with our customers on meeting bespoke requirements designed around specialist applications and for more case study examples please click here to visit our ‘Resources’ page.

 

Stock Listing

For readily available options, please view our Stock Listing and Enquiry Guide to help with selecting a suitable regulator, which can be downloaded by clicking on the image on the right.

We are constantly optimising our stock profiles to ensure that we have always have units readily available off-the-shelf in a variety of customised configurations. If you require any assistant sizing or selecting a suitable model, please get in touch with our expert team for guidance.

Whether you are looking to control gas or liquids, we have a solution that has got you covered. For any requirements of pressure regulators in the UK, look no further.