Dome-loaded back pressure regulator with a multi-orifice design capable of ultra-low pressure and ultra-low flow adjustment. Maximum CV range of 1,000,000:1.
The Equilibar dome-loaded back pressure regulator features a multi-orifice design that minimizes the impact of flow fluctuations on the set pressure from the upstream side, allowing for stable control. It is controlled solely by a flexible diaphragm, eliminating the friction issues that can reduce accuracy in spring-loaded back pressure valves, and it also has a fast response time. By connecting the pilot port to a vacuum pump, it can be used as a vacuum regulator. 【Features】 ■ Fully opens with less than 1% overpressure in most applications ■ Usable with gas-liquid mixed fluids, slurries, and highly corrosive fluids ■ High-precision control of vacuum and vacuum-positive pressure ■ Simple structure allows for easy parts replacement and assembly ■ Adjustable from a minimum of below 0.1 kPa to a maximum of about 70 MPa *For more details, please contact us or download the PDF for further information.
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basic information
【Specifications】 - Wide Cv range: Min: 1E-11 / Max: 320 - Maximum flow range: 1,000,000:1 - Maximum operating temperature: 450℃ (Research Series) - Pressure operating range: -100 kPa to 70 MPa - Body materials: Special alloys and polymer materials such as 316 S/S, aluminum, Hastelloy, titanium, zirconium, PTFE, PVDF, etc. - Diaphragm materials: PTFE, Polyimide, PEEK, SS316, FKM (Viton), Buna Nitrile, etc. - Connection types: NPT, HPLC, BSPP, tri-clamp, high-pressure fittings, tube fittings, VCR/VCO, sanitary clamp, flange, etc. / Sizes: 1/16” – 4”
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Applications/Examples of results
【Examples of Use】 ■ For Research - Catalyst research / reaction furnace pressure control: Usable with mixtures of gases and liquids, eliminating the need for high-pressure separators. - Oil core analysis: Accurately controls flow rates at micro and nano levels. - Supercritical CO2 control: Designed to counter freezing and clogging, unlike conventional regulators. - Membrane separation: Maintains differential pressure tightly with a frictionless structure. ■ For Industry - Fuel cells / fuel cell evaluation devices: Usable with high-temperature and humid exhaust gases. - Fuel pump testing: Maintains set pressure even when pump flow rates change. - Vibration absorption: The air pilot can also be used as an absorption device to limit vibrations and pressure spikes. - Tank filling equipment: Operates accurately even at very low set pressures. - Pump discharge pressure control: Stably controls pump discharge pressure.
Detailed information
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FD Series Sanitary Back Pressure Regulator
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Electric Air Regulator Can control positive pressure, vacuum, and vacuum-positive pressure.
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Cross-sectional view Multiple orifices and a simple design
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Set pressure fluctuation graph The fluctuation of the set pressure due to the increase in flow rate is small.
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Company information
Our company was established in 1943 and has consistently operated as a specialized trading company for various industrial machinery, industrial measuring instruments, and analytical equipment for over 60 years, both domestically and in import/export. During this time, we have continuously dispatched technical staff overseas and invited numerous specialized technicians from abroad to acquire technology. Based on our accumulated wealth of experience and know-how, we ensure thorough operation, maintenance, and after-sales service of our equipment, while also introducing new technologies, earning high evaluations and trust from our clients. In recent years, with the development of industrial measuring instruments, we have strengthened our system engineering division and achieved steady results. Our company is committed to preparing a framework that can respond to the increasingly complex economic environment and diverse technological innovations, striving to meet your needs. We sincerely ask for your continued support and encouragement.