VIGOUR VSV2 Series Proportional Relief Valve – Product Overview
The VIGOUR VSV Series offers a comprehensive range of high-performance relief valves designed for both liquid and gas services. Engineered for precision and durability, these valves are ideal for applications requiring reliable overpressure protection across various industrial sectors.
Key Product Features
- Suitable for liquid or gas service
- Set pressure range: 0.7 to 400 bar
- End connection sizes: 1/4", 1/2", and 6 mm to 12 mm
- Color-coded springs for easy identification of pressure ranges
- Constructed from SS 316L for excellent corrosion resistance and mechanical strength
Technical Data – Pressure-Temperature Ratings
The VSV series is divided into three sub-series based on inlet and outlet pressure capabilities. The table below summarizes the pressure-temperature ratings for each series with common seal materials.
| Series | Inlet Pressure | Outlet Pressure | Set Pressure Range | Seal Materials | Temperature Range |
|---|---|---|---|---|---|
| VSV 2 | 6000 psig (413 bar) | 1500 psig (103 bar) | 50 to 6000 psig (3.4–413 bar) | FKM, NBR, EPDM | -40 °C to 150 °C |
| VSV 2A | 6000 psig (413 bar) | 2500 psig (172 bar) | 50 to 1500 psig (3.4–103 bar) | FKM, NBR, EPDM | -40 °C to 150 °C |
| VSV 2B & 2C | 300 psig (20.6 bar) | Same as inlet | Up to 225 psig (15.5 bar) | FKM, NBR, EPDM | -40 °C to 150 °C |
Maximum Set Pressure vs. Temperature Matrix (psig)
| Temperature (°C) | VSV 2 (FKM) | VSV 2 (NBR) | VSV 2 (EPDM) | VSV 2A (FKM) | VSV 2A (NBR) | VSV 2A (EPDM) | VSV 2B/2C |
|---|---|---|---|---|---|---|---|
| -40 | 5580 | 5580 | 5580 | 1500 | 1500 | 1500 | 200 |
| 25 | 5580 | 5580 | 5580 | 1500 | 1500 | 1500 | 200 |
| 70 | 5160 | 5160 | 5160 | 1500 | 1500 | 1500 | 200 |
| 150 | 4910 | 4910 | 4910 | 1500 | 1500 | 1500 | 200 |
Note: Pressure ratings are shown in psig. All values are subject to material and temperature limitations.
Testing and Performance Validation
Every VIGOUR relief valve is individually tested to ensure precise set pressure and reliable resealing performance. The table below outlines the test parameters and minimum resealing percentages for low-pressure series.
| Series | Test Set Pressure (psig) | Min. Resealing Pressure (% of set) |
|---|---|---|
| VSV 2B | 10–20 | 50% |
| VSV 2B | 175–225 | 91% |
| VSV 2C | 100–200 | 50% |
| VSV 2C | 850–1000 | 84% |
These tests confirm that each valve meets stringent performance standards, ensuring system safety and operational integrity.
Dimensional Overview – Low-Pressure Valves (VSV 2B & VSV 2C)
The low-pressure series is designed for service up to 20 bar. Valves are available with factory-set pressures and feature a single spring covering the full set pressure range.
VSV 2B Series – 0.19 in (4.8 mm) Orifice (Set Pressure: 10–225 psig)
| End Connections | Size | Ordering Number | L (mm) | M (mm) | A (mm) | B (mm) | C (mm) |
|---|---|---|---|---|---|---|---|
| Tube Fittings | 1/4 in | VSV2B-S-*-04-04 | 68.6 | 36.6 | 40.6 | 10.9 | 105 |
| Tube Fittings | 6 mm | VSV2B-S-*-6M-6M | 68.6 | 30.2 | 40.6 | 10.9 | 98.8 |
| Tube Fittings | 8 mm | VSV2B-S-*-8M-8M | 68.6 | 30.2 | 29.7 | 10.9 | 98.8 |
| Male NPT / Tube Fitting | 1/4 in | VSV2B-S-*-F4-04 | 68.6 | 30.2 | 29.7 | 10.9 | 98.8 |
| Male NPT / Female NPT | 1/4 in | VSV2B-S-*-M4-F4 | 68.6 | 30.2 | 29.7 | 10.9 | 98.8 |
VSV 2C Series – 0.25 in (6.4 mm) Orifice (Set Pressure: 10–225 psig)
| End Connections | Size | Ordering Number | L (mm) | M (mm) | A (mm) | B (mm) | C (mm) |
|---|---|---|---|---|---|---|---|
| Tube Fittings | 1/2 in | VSV2C-S-*-08-08 | 104 | 46.5 | 12.7 | 150 | - |
| Tube Fittings | 12 mm | VSV2C-S-*-12M-12M | 104 | 36.3 | 46.5 | 150 | - |
| Male NPT / Tube Fitting | 1/2 in | VSV2C-S-*-M8-08 | 104 | 36.3 | 46.5 | 140 | - |
| Male NPT / Female NPT | 1/2 in | VSV2C-S-*-M8-F8 | 104 | 36.3 | 36.3 | 140 | - |
Note: Dimensions shown are with tube fitting nuts finger-tight. Replace "*" with set pressure code when ordering.
High-Pressure Valves (VSV 2 Series)
Designed for service up to 6000 psig (400 bar), the VSV 2 series uses multiple springs to cover a wide range of set pressures. These valves are ideal for high-demand applications requiring precision and reliability.
VSV 2 Series – 0.14 in (3.6 mm) Orifice (Set Pressure: 50–6000 psig)
| End Connections | Size | Ordering Number | L (mm) | M (mm) | A (mm) | B (mm) | C (mm) |
|---|---|---|---|---|---|---|---|
| Tube Fittings | 1/4 in | VSV2-S-*-04-04 | 68.6 | 36.6 | 40.6 | 10.9 | 105 |
| Tube Fittings | 6 mm | VSV2-S-*-6M-6M | 68.6 | 30.2 | 40.6 | 10.9 | 105 |
| Tube Fittings | 8 mm | VSV2-S-*-8M-8M | 68.6 | 30.2 | 29.7 | 10.9 | 105 |
| Male NPT / Tube Fitting | 1/4 in | VSV2-S-*-M4-04 | 104 | 46.5 | 12.7 | 150 | - |
| Male NPT / Female NPT | 1/4 in | VSV2-S-*-M4-F4 | 104 | 36.3 | 12.7 | 150 | - |
| Male NPT / Female NPT | 1/2 in | VSV2-S-*-M8-F8 | 104 | 36.3 | 12.7 | 150 | - |
Note: Replace "*" with the appropriate set pressure code when ordering.
Conclusion
The VIGOUR VSV Series relief valves combine robust construction, precision engineering, and flexible configuration options to meet the demands of modern industrial systems. Whether for low-pressure or high-pressure applications, these valves deliver consistent performance and long-term reliability.
For customized set pressures or special material requirements, please contact our technical sales team.
