VIGOUR Back Pressure Regulators>> Precision Control You Can Rely On
Accurate back pressure regulation is a critical requirement in both industrial processes and laboratory systems, directly influencing operational safety, process stability, and overall efficiency.
The VIGOUR VSR Series Back Pressure Regulators are engineered to provide precise pressure control, long-term reliability, and flexible system integration. Offered in two core models-VSR-51 and VSR-52-the series accommodates a broad range of pressure requirements while maintaining consistent performance and mechanical integrity.
The VSR-51 and VSR-52 regulators combine a compact footprint with a cost-efficient design, delivering dependable performance without sacrificing control accuracy.
Both models feature bubble-tight shutoff, ensuring zero leakage across the reseating pressure range-an essential characteristic for applications involving high-purity, toxic, or hazardous gases. Each regulator is factory-tested for oxygen service, underscoring its suitability for safety-critical and contamination-sensitive environments.
The VSR-51 is rated for back pressures up to 17 bar and is widely used in analytical instrumentation, gas sampling systems, pilot plants, and research laboratories.
Its diaphragm-sensed construction enables stable and precise pressure regulation while minimizing internal dead volume, reducing contamination risk, and ensuring compatibility with both corrosive and non-corrosive media.
Designed for more demanding operating conditions, the VSR-52 extends the pressure range to 50 bar. The piston-sensed design enhances mechanical robustness and pressure stability, making it well suited for hydraulic and pneumatic systems, calibration equipment, and high-pressure sampling applications.
A variety of material and sealing options-including stainless steel or brass bodies and Viton® or Kalrez® seals-allow the regulator to be configured to meet specific chemical, temperature, and environmental requirements.
Key Technical Data at a Glance
| Feature | VSR-51 | VSR-52 |
|---|---|---|
| Maximum Back Pressure | 17 bar | 50 bar |
| Flow Coefficient (Cv) | 0.08 | 0.1 |
| Sensing Mechanism | Diaphragm-sensed | Piston-sensed |
| Valve Seat Material | PCTFE (standard) / Vespel® (optional) | PCTFE (standard) / Vespel® (optional) |
| Body / Seal Options | Hastelloy® / SS 316L | Stainless steel or brass; Viton® / Kalrez® |
| Inlet / Outlet | 1/4" NPT (F) | 1/4" NPT (F) |
| Operating Temperature | -30°C to +74°C | -30°C to +74°C |
| Leak Rate | Bubble-tight | Bubble-tight |
| Approx. Weight | ~1 kg | ~1 kg |
Versatility in Modern Applications
Beyond conventional pressure control applications, the VSR Series is designed to support advanced and evolving industrial systems. Panel-mount configurations and optional gauge ports facilitate seamless integration into automated and digitally controlled systems, aligning with Industry 4.0 architectures.
Their proven compatibility with aggressive media and ultra-high-purity gases makes them particularly suitable for renewable energy development, semiconductor manufacturing, and biotechnology, where precision, cleanliness, and reliability are non-negotiable.
Engineering for Long-Term Performance
VIGOUR places strong emphasis on durability, adaptability, and lifecycle efficiency. The use of corrosion-resistant materials such as Hastelloy® and SS 316L significantly extends service life while minimizing maintenance requirements.
Despite their compact and lightweight construction, both regulators maintain reliable flow performance, ensuring consistent operation even in space-constrained installations.
Conclusion
Whether stabilizing pressure in laboratory-scale experiments or safeguarding industrial processes under demanding conditions, the VSR-51 and VSR-52 Back Pressure Regulators deliver precise, reliable, and adaptable pressure control.
Through continuous innovation in fluid control technology, VIGOUR provides solutions that enhance system performance, operational safety, and long-term reliability across a wide range of global applications.
