The units in the Low Flow Series have also been known as “standard multi-orifice back pressure regulators”. A mouth ful, but also somewhat misleading, as there is nothing “standard” about these this subtype of the Equilibar Research Series. If anything, we consider these pressure valves as “The Standard” for research applications.
Unique performance & broad flow range
Yes, these pressure regulators are in fact commonly sold and broadly applied. The units in the Low Flow Series are based on Equilibar’s unique, patented multi-orifice technology and have an extremely wide flow range and superior (two-phase) flow performance. Because of their broad specifications, the LF units serve almost every research application you can think of!
The Low Flow regulators (or: standard multi-orifice regulators) in the Equilibar® Research series are most popular because they serve almost every research application. For instance, they can achieve stable pressure control in ultra low flow applications from subatmospheric pressure up to 690 bar (10.000 psi).
The low flow series covers no less than 10 different models: LF0/1/2 going up to 69 bar (1.000 psi), H3P0/1/2 going up to 206 bar (3.000 psi), H6P0/1/2 going up to 412 bar (6000 psi) and H10P going up to 689 bar (10.000 psi).
All these units have 4 inlet orifices, like most other Equilibar back pressure regulators. The outlet contains 2 orifices, making it more suitable for two-phase flow. These back pressure regulators can control stable pressure over a Cv range of 1:100.000 in open loop control. Temperature range (subject to material selection) is between -20°C and 650°C.
Equilibar® Low Flow Series | Large flow range, all purpose research regulator
Main specifications of Low Flow Series summarized
For complete overview, please see the product brochure, installation & maintenance guide and drawings via the tabs on the left side of this table.
≤ 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
PGL (PTFE Glass Laminated), Stainless Steel SS316/316L, Hastelloy C276,
Virgin PTFE, FKM, Polyimide, Buna‐N, PEEK, EPDM
*Diaphragm thickness will be selected by our engineers based on your process parameters
O-ring materials
Viton® (FKM), Kalrez® (FFKM), PTFE, EPDM, Buna‐N
Options
Can be supplied including mounting brackets
Oxygen cleaning
