Precision Pressure Control
Unique Back Pressure Regulators
The Equilibar® back pressure regulator is a new technology which offers dramatically more precision and stability across widely varying flow rates. These regulators can control pressure from 0.02 psig, using a delicate diaphragm, up to 5000 psig using a stainless steel diaphragm.
Unlike typical spring-type back pressure regulators, the Equilibar BPR
typically controls inlet pressure to within a 1-2% window. It achieves this
precision by its dome-loaded design. Instead of a spring, the Equilibar
uses pressure from an air (or other fluid) source to communicate the desired
set-point. For example, to control your process back-pressure at 50 psig,
simply apply a 50 psig air signal to the dome (or reference port) of the
Read more about how Equilibar's patented back pressure control technology works.
Ultra Low Pressure Control
The Equilibar back pressure regulator is unique in its ability to control at very low pressures. Because there is no friction or sliding seals, the device has zero dead-band, zero hysteresis, and sensitivity to 0.001 psig (0.007 kPa). Many clients use these regulators down to 0.02 psig (0.14 kPag, 0.5 inWC). Popular applications include laboratory testing and extrusion pressure control. Learn more about Equilibar's low pressure solutions.
Ultra Low Flow Control
The Equilibar back pressure regulator has the widest flow rate window available. Flow rate turn-down ratios of 1000:1 to 10,000:1 are typical, depending on configuration. Many gas analysis systems have benefited from stable control down to 1 ml/min gas flow rate (Cv down to 1E-8). Learn more about low flow solutions from Equilibar.
The Equilibar back pressure regulator can also be used in the vacuum range to provide "http://www.equilibar.com/vacuum-regulators/"> Equilibar Vacuum Pressure Regulators are available in sizes from 1/4" through 2.5" and can control through the range of 0-30 inHg. These devices can be used in industrial vacuum distribution systems to allow different machines to have different vacuum pressures while avoiding pressure variations.
High Pressure Control
The new Equilibar® Research Back Pressure Regulator Series controls back pressure up to 5000 psig by using a 316stainless steel diaphragm. Test results show that the same impressive precision and wide flow rate range is available in this higher range. The EB1HP1 has a flow coefficient (Cv) of 0.1, but can control down to 1E-8 or below, depending on pressure range.
Larger Back Pressure Valves
The Equilibar back pressure regulator is available in sizes up to 3" in pipe size. Sometimes call back pressure valves, these larger units provide the same unique performance as the smaller back pressure regulators.
Two-Phase Flow Solutions
Equilibar's unique design make it an excellent choice as a regulator for two-phaseflow applications. Such mixed phase streams are common in laboratory applications such as catalyst research reactors and super-critical carbon dioxide research. See how our back pressure regulator works to understand how our multiple orifices and direct sealing diaphragm perform in multi-phase flow.
Unfortunately, there are many different terms which all describe the same type of fluid control. Equliibar back pressure regulators can alternatively be called:
Learn more about Equilibar and its precision back pressure regulators.