Back Pressure Regulators

The Equilibar Back Pressure Regulator is our core technology. It features a flexible diaphragm as its only moving part to provide frictionless, stable operation. The Equilibar’s dome- loaded, multiple orifice design offers instantaneous control and exceptional precision for the most complex applications.

Back Pressure Regulators, Equilibar

4″ Cv range 1E-08 to 0.41

Laboratory and gas analysis systems

Back Pressure Regulators, Equilibar

General Service GS Series 1/4″ – 1″ Cv range 1E-03 to 8.5

Gases liquids and mixed phases

Back Pressure Regulators, Equilibar

Industrial Service BD Series 1 1/2″ – 4″ Cv range 1E-02 to 160

Applications requiring larger sizes and higher flow

Back Pressure Regulators, Equilibar

Sanitary Service FD Series 1/2″ – 3″ Cv range 1E-06 to 36

BioPharma and sanitary applications

Sanitary Valves

Equilibar® FD sanitary valves are designed with special features for biopharmaceutical and other sanitary applications.

Equilibar, Sanitary Valves

Equilibar FD sanitary back pressure regulators and control valves for multi-use biopharma processing

Sanitary Steam Traps

Equilibar, Sanitary Valves

Equilibar dome-loaded valve with electronic pilot setpoint regulator for smooth automated control of pressure or flow

Equilibar, Sanitary Valves

Equilibar FDO4 1/2″ sanitary valve for Cv 1E-6 to 1.0

Sanitary Steam Traps

Equilibar, Sanitary Valves

Equilibar FDO6 sanitary valve for Cv range of 1E-5 to 4.0

Equilibar, Sanitary Valves

Equilibar FDO8 sanitary valve for a Cv range of 1E-5 to 8.0

Equilibar, Sanitary Valves

Equilibar FDO12 Sanitary valve for a Cv range of 1E-4 to 12

Equilibar, Sanitary Valves

Equilibar FDO16 Sanitary valve for Cv range of 1E-4 to 19

Equilibar, Sanitary Valves

Equilibar FDO8 sanitary valve for a Cv range of 1E-5 to 8.0

Single-Use Products

The Equilibar® dome loaded multi-orifice valve technology is now available in a single use valve. The patent pending Equilibar® SD series single use valves are manufactured using USP Class VI polymers and stainless steel. The disposable valve body made of polymer is inserted into a stainless-steel support housing with wing nut closure for quick and easy assembly. The Equilibar single use valve for bioprocessing systems is a revolutionary design in single use pressure control.

Equilibar, Single-Use Products

SDO1 Single Use Valve 1/8” barb hose fitting

Horizontal Bucket Traps

Equilibar, Single-Use Products

SDO2 Single Use Valve 1/4” barb hose fitting

Horizontal Bucket Traps

Equilibar, Single-Use Products

SDO3 Single Use Valve 3/8” barb hose fitting

Equilibar, Single-Use Products

SDO4 Single Use Valve 1/2” barb hose fitting

Equilibar, Single-Use Products

SDO6 Single Use Valve 3/4” barb hose fitting

Equilibar, Single-Use Products

SDO8 Single Use Valve 1” barb hose fitting

Flow Control Valves

Precision control across an ultra-wide range of flow rates for gases, liquids and mixed-phase fluids.

The Equilibar® advanced flow control valve works in a control loop with an electronic controller and a flow meter. For demanding flow control applications where the supply pressure is largely stable, Equilibar customers have discovered significant benefits including wide Cv range capability, chemical compatibility and multiphase fluid handling.

Equilibar, Flow Control Valves

Traditional rising stem valve

Equilibar, Flow Control Valves

Advanced Flow Control valve

Equilibar, Flow Control Valves

FDO sanitary valve with electronic pilot

Vacuum Regulators

The Equilibar® vacuum regulator (EVR) uses multiple orifices sealed by a flexible diaphragm instead of a single large valve seat. The EVR is dome-loaded by a pneumatic pilot regulator setting the vacuum setpoint. As flow requirements change, the diaphragm moves a few millimetres to open and close over some or all of the orifices, providing instantaneous and frictionless control. The pneumatic pilot setpoint pressure may be set with a manual or electronic vacuum pilot regulator.

EVR is available in sizes from 1/4″ to 4″ ports.

Equilibar, Vacuum Regulators

1/2″ EVR-GDS4 with Manual Pilot Setpoint Adjuster

Equilibar, Vacuum Regulators

Equilibar 4″ EVR-BD32 vacuum regulator with PVC body and manual pilot setpoint control

Equilibar, Vacuum Regulators

Anodized Aluminum EVR-GSD8 with integrated QPV electronic pilot regulator

Equilibar, Vacuum Regulators

Electronic Vacuum Regulating Valve

Pressure Reducing Regulators

Pressure Reducing Regulators for Air and inert gases

Pressure Reducing Regulators (PRR) are the most common type of pressure regulator. They reduce an unregulated inlet pressure down to a desired regulated outlet pressure.
The manual PRRs listed below are recommended as pilot pressure regulators for Equilibar back pressure regulators. All PRRs listed are designed for use with air or inert gas* and have a small but significant weep to the atmosphere.

Equilibar, Pressure Reducing Regulators

LPR2: Ultra Low-Pressure Regulator

-Lowest pressure range available in its class -For low-flow or no-flow applications only -Extremely sensitive and stable -For air and inert gases* Model output ranges: 0.3 – 7 inH20 / 0.75 – 17 mbar(g) up to 1 – 28 inH20 / 2.5 – 69.7 mbar(g)

Equilibar, Pressure Reducing Regulators

Model 41: High Flow Low-Pressure Regulator

-High Accuracy -Superior Sensitivity -Light Weight -Compact Size -Many Available Options <b>Model output ranges: 0 – 0.7 psig / 48 mbar(g) up to 0 – 5 psig / 345 mbar(g)

Equilibar, Pressure Reducing Regulators

Model 10: Medium Pressure Regulator

-Wide range of pressures available -Economical -More rugged construction than other regulators in its class <b>Model output ranges:</b> 0 – 2 psig / 0.1 bar(g) up to up to<br> 5 – 400 psig / 0.35 – 27.5 bar(g)

Equilibar, Pressure Reducing Regulators

Series 3000: High-Pressure Gas Regulator

-Low flow for precision laboratory & research applications -Self-venting through bonnet for convenient pressure control -Wide range of pressures, up to 10,000 psig -In stock for quick delivery Model output ranges: 5 – 250 psig / 0.3 – 17 bar(g) up to 100 – 10,000 psig / 6.9 – 689 bar(g)

Electronic Pressure Regulators

Equilibar offers a wide range of precision electronic pressure regulators (EPRs) for controlling air or inert gas for various applications. These are recommended for controlling the pilot reference setpoint pressure for Equilibar dome-loaded back pressure regulators and vacuum regulators. All models shown here are designed for use with air or inert gases in non-hazardous/non-explosive environments. For information about ATEX-rated controllers, please contact us.

For best performance when using these EPRs as a pilot setpoint regulator for an Equilibar BPR, a tubing connection between the outlet of the electronic regulator and the dome of the BPR should have a minimum volume of 2 cubic inches / 35cc.

Control below 1000psig

Control below 1000psig, Electronic Pressure Regulators, Equilibar

Electronic Pressure Controller

New digital pressure control technology with integrated microcontroller. Configured to meet specified range from vacuum to 150 psig / 10 bar(g) – Dual proportional valve control with integrated digital microcontroller – Closed loop control – 4-20mA, 0-10V or 3.3V serial command – Gauge, vacuum, and absolute pressure models – No integral bleed required – IP65 enclosure – CE models available

Control below 1000psig, Electronic Pressure Regulators, Equilibar

Electronic High Pressure Controller

New digital pressure control technology with integrated microcontroller. Configured to meet specified range up to 500 psig /35 bar(g) – Dual proportional valve control with integrated digital microcontroller – Closed loop control – 4-20mA, 0-10V or 3.3V serial command – Gauge, vacuum, and absolute pressure models – No integral bleed required – IP65 enclosure – CE models available

Control below 1000psig, Electronic Pressure Regulators, Equilibar

High Precision Electronic Pressure and Vacuum Controllers

Digital electronic pressure control with microprocessor and keypad control. Series of models to specified range from vacuum to 150, 500, 1000 or 3000 psig / 10, 35, 70 or 200 bar(g) – Dual proportional valve control with digital microprocessor – Closed loop control – Gauge, vacuum, and absolute pressure models – Direct control from keypad – No integral bleed required – Ip40 enclosure – CE models available

Control below 1000psig, Electronic Pressure Regulators, Equilibar

Electronic High Resolution Pressure Control Valve

Standard analog electrnic pressure controller. Easily modified for custom applications. Configured to meet specified range from vacuum to 150 psig / 10 bar(g) – Dual proportional valve control with analog electronic control circuit – Closed loop control – 4-20mA or 0-10V command] – Gauge, vacuum, and absolute pressure models – Bleed orifice for static applications or dynamic applications needing max stability – IP65 enclosure – CE models available

Control below 1000psig, Electronic Pressure Regulators, Equilibar

QBS Electronic Control Valve

Standard analog electronic pressure controller. Easily modified for custom applications. Configured to meet specified range up to 500 psig /35 bar(g) max -Dual valve control with analog electronic control circuit – Closed loop control – 4-20mA or 0-10V command – Gauge, vacuum, and absolute pressure models – IP65 enclosure – CE models available

Control below 1000psig, Electronic Pressure Regulators, Equilibar

GP1 Electropneumatic Regulators

Standard analog electronic pressure controller. Easily modified for custom applications. Configured to meet specified range up to 1000 psig /69 bar(g) max – Dual valve control with analog electronic control circuit – 4-20mA, 0-10V and RS232 digital command options – Gauge, vacuum, and absolute pressure model – No gas consumed at steady state – IP65 enclosure

Control Above 1000 psig

Control Above 1000 psig, Electronic Pressure Regulators, Equilibar

EPR-3000

Precise, convenient control up to 3000 psig / 207 bar(g) – For inert gas – Dual analog valve constructionbr – No gas supply wasted at steady state – Very high resolution with 0.25% accuracy – Digital or analog communications with keypad option – Not intended for hazardous/explosive environments The EPR-3000 can be quickly commanded using the convenient keypad interface. For system automation, the device can be automated through either the 0 – 5 VDC analog interface or by use of a Serial (RS-458) connection. Power supply for the unit (12 – 30 VDC) can be provided through an included power brick, or provided through the DIN connector.

Control above 3000 psig

Control above 3000 psig, Electronic Pressure Regulators, Equilibar

HP ERC

Precision electronic reference pressure control up to 400 bar / 5800 psi This 400 bar electronic pressure controller contains a PID controller with two proportional valves and an external pressure sensor. The HP ERC achieves incredibly stable pressure control without any overshoot. – For inert gas (N2, air) – Achieves a control stability of <0.1% – Minimal dead volume – Zero consumption of pressurised inert gas- Temperature range: -10°C to 70°C – Digital or analog communication options.

Back Pressure Regulators

Sanitary Valves

Single-Use Products

Flow Control Valves

Vacuum Regulators

Pressure Reducing Regulators

Electronic Pressure Regulators

Control below 1000psig

Control Above 1000 psig

Control above 3000 psig

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