Equilibar is proud to offer the most precise back pressure regulators available in the industry. Our unique technology offers up to 5X the precision of standard regulators, across widely varying flow rates and pressures.
Choose from our wide selection of available sizes, materials, and styles. Contact our engineers for more information or to request a customized design for your special application.
| Type | Photo | Std. Pressure Range | Size Range | Notes |
Instrument Back Pressure RegulatorsBrochure Instrument Series page |
 Instrument Series Brochure |
0.02 to 5000 psig | 1/8" and 1/4" | Low and Ultra Low Flow For gas, mixed-phase, and certain liquid applications Cv from 1x10-7 to 0.6 |
New: ZF Zero Flow SeriesZF Series Cutsheet |
 ZF Series Cutsheet |
30 to 1500 psig | 1/8" and HPLC fittngs | Ultra Low Flow For gas, mixed-phase, and certain liquid applications From Zero (0) Flow to approximately 1 liter/min (gas) |
| Type | Photo | Std. Pressure Range | Size Range | Notes |
Gas & Mixed Phase ServiceGS Series Brochure |
0.02 to 1000 psig also vacuum |
1/4" to 1" | Rugged bar stock construction. Compact configuration Gases and mixed phase fluids (certain liquid applications) |
|
Liquid applicationsNL Brochure |
0.02 to 1000 psig | 1/4" to 1" | Rugged bar stock construction. Designed for liquids Same performance as GS Includes feature to inhibit water hammer |
| Type | Photo | Std. Pressure Range | Size Range | Notes |
Larger sizesNL Brochure |
0.02 to 200 psig | 1" to 4" | Gas applications Welded external elbows Weight saving design Same great performance Gas & Mixed phase fluids (certain liquid applications) |
| Type | Photo | Std. Pressure Range | Size Range | Notes |
EB1FD4Brochure FD Hygienic Series page |
 FD Hygienic Series Brochure |
0 - 100 psig
(0-7 bar) |
1/2" tri-clamp
|
Comes with inner tube diameter
0.25" (6mm) 0.4" (10mm) |
EB4FD8Brochure FD Hygienic Series page |
 FD Hygienic Series Brochure |
0 - 100 psig
(0-7 bar) |
1" tri-clamp inlet
|
Angle configuration (outlet on bottom)
Option: Two inlets for straight flow-through |
Equilibar has a wide variety of body styles available for unique applications. Our specialty is demanding applications, and we frequenty customize our regulators to fit your needs.
| Type | Photo | Std. Pressure Range | Size Range | Notes |
Quick Open Back |
0.02 to 100 psig | 1/8" to 1" |
Flow through body option |
|
Vacuum RegulatorsVacuum Overview |
0-30 inHg | 1/4" through 4" | For vacuum range Uses NL and NLB bodies Manual or computer automation |
