Versatile, robust & multi-purpose pressure regulators
The GS Series product line offers a wide range of dome loaded control valves for installations requiring reliable and high precision control of gas, liquid or mixed-phase flow.
- Reliable pressure regulator for frictionless back pressure control
- Accuracy within 1-2% even across wide, varying flow ranges
- Available in 4 models & 5 line sizes; line sizes range from ¼” up to 1”, covering all common line sizes in pilot plants & small-scale production plants
- Unique multiple orifice technology in compact design
- Rangeability up to 1:10.000 – often even more – always surpassing the 1:40 that is standard for traditional control valves!
- Capable of handling gas, liquid or mixed-phase with 1 single valve
- Robust & low-maintenance with only 1 moving part
General Service back pressure regulators for pilot-plant-scale applications
The GS Series comes in 4 different models and 5 different sizes:
- The GS(D) units for lower pressures up to 51 bar (750 PSIG);
- The GSDM units for medium pressures up to 68 bar (1.000 PSIG); and
- The GSDH units for higher pressures up to 145 bar (2100 PSIG);
All models are availabe in 5 line pipe sizes, ranging from 1/8″ to 1″ for optimal scaling and integration into the customer application at hand.
Tailored to your needs
Because of the many available material options, these control valves can be made chemically resistant to even aggressive process media and they can easily be tailored to any other application requirements of the customer. For example: We offer GS units with PGL (PTFE glass reinforced) diaphragms & Viton o-rings for process conditions up to 175°C, as well as GS units equipped with metallic or polyimide diaphragms and Kalrez o-rings for process conditions up to 300°C!
Further customization
If the many standard options do not meet your application needs, customized units can be engineered specifically for your process requirements. An example of this is the special GSDH2 back pressure regulator that was designed to handle a pressure of 250 bar gauge at a maximum of 300°C, with a required Cv of 1.7. Read the related blog in the Expertise area on this website: Special GSDH2 Back Pressure Regulator.
Scalability of Equilibar back pressure technology
This GS Series product line is positioned between the multiple models of the Research Series on the one hand – the control valves in the Research Series offer a Cv-range between 0 to 0.6 – and the larger units in the BD Series, offering up to 4” piping with a capacity Cv of 160.
