Back pressure regulators for problem solvers & innovators
The Research Series is the largest and most diverse product line of the Equilibar product family. Primarily intended for use in R&D and experimental processes, but equally successful amongst process engineers for any other smaller-size applications.
The Research Series offers thoroughly robust, versatile, and mature pressure regulators, available in many variations:
This page introduces you to the Research Series in general, but we have so much information and expertise about these powerful process control instruments that each of the Research-product lines also has its own page, for an even more detailed and complete overview.
Research Series back pressure regulators for research, laboratory use & analysis applications
The Equilibar Research Series back pressure regulators are renowned for their outstanding performance with excellent rangeability, stability & precision. Additionally, these control valves are truly “multipurpose tools”, since they can be operated across a wide range of flow rates. Thanks to this wide flow range (visualized in the image gallery) an Equilibar valve can replace multiple valves with a single unit.
Innovative instruments for innovators
Moreover, many units in the Research Series have such a large flow range, that there is a significant overlap in the Cv range of the different models. These broad flow ranges benefit researchers and (process) engineers who do not want to limit operating conditions before starting their experiment! Research Series regulators help their users to push the boundaries of their application, as most innovators aim to do.
Excellent performance also for uncertain process conditions
Conditions under which a future (experimental) process will operate are often unknown at the moment of valve selection and engineering. The optimal process conditions often are precisely the parameters that will be investigated after the application is built. Research Series back pressure regulators are a powerful tool also when process conditions are so uncertain. What makes the back pressure regulators in the Equilibar Research Series so versatile?
Many options available to vary in design specifications
Large turndown ratio in pressure range
Large turndown ratio in flow range
Capable of handling large variations in media density & viscosity
Research Series control valves allow users to try all possible variations in flow rate, pressure range, and media density and viscosity.
Research Series regulators cover many applications
These back pressure regulators are suitable for a wide variety of processes and applications. Due to their unique, patented multi-orifice design, Equilibar back pressure regulators are particularly suitable for gas, liquid, and mixed-phase applications where precision and consistency are of critical importance. The innovative dome-loaded, diaphragm-sealed technology provides an extremely wide flow range and superior two-phase flow performance. Because of the wide variety of material options, the chemical compatibility of these regulators is also excellent: We can adapt each unit to match and accommodate your process requirements.
Example applications that regularly use models from the Research Series include catalyst research, reactor pressure, or reservoir core analysis.
Equilibar® Research Series | Laboratory scale control valves
Summarized specifications of Equilibar Research Series
R&D, experimental or research-size processes, (gas) analysis applications
Capable of handling variety of process media, in gas, liquid & two-phase-flows
(*) These are custom models – contact PCS for specifications and more info
MAOT (in °C)
≤ 40°C for polymer bodies
≤ 150°C for metal bodies + PTFE diaphragm + Viton® O-rings
≤ to 200°C for metal bodies + metal diaphragm + Viton® O-rings
≤ 300°C for metal bodies + metal diaphragm + Kalrez® O-rings
≤ 450°C – High Temperature models, see High Temperature Series
*Diaphragm thickness will be selected by our engineers based on your process parameters
O-rings
available materials
(Other materials upon request)
Alloys:
Kalrez® (FFKM)
Polymers:
Viton® (FKM)
PTFE
EPDM
Buna-N
Certificates
(optionally available)
Body & cap material certificate 3.1.B
NACE-certificate
Diaphragm/O-ring material certificate (FDA and/or USP Class VI)
Surface finish certificate
Thread lubricant certificate (FDA)
Certificate of conformance 2.1
Assembly & Test certificate (leak and/or equilibrium flow testing)
TSA certificate
Design certificate (MAWP according to ASME B31.3)
CRN certificate
Notified-Body-declaration “simple apparatus” ATEX Directive 2014/34/EU available upon request
Product options
Can be supplied with mounting brackets
Oxygen cleaning
