VICV series IGS Check valve: Precision-Engineered for Ultra-Clean Gas Systems
The IGS VICV Series check valves represent a significant advancement in fluid control technology, specifically engineered to meet the rigorous demands of high-purity and critical application environments.
Combining robust metal sealing technology with superior materials science, these valves set a new benchmark for reliability and performance in industries such as semiconductor manufacturing, biopharmaceuticals, and analytical instrumentation.
- Modular design with a compact footprint, ideal for high-density equipment layouts and enabling quick installation and maintenance;
- Utilizes metal seals (e.g., C-Seal) and high-performance elastomeric sealing materials to ensure exceptional sealing integrity;
- Straight-through flow path design eliminates dead legs or unswept areas, ensuring residue-free and contamination-free media passage;
- Constructed from SS316L remelted material to minimize particle generation and adhesion, meeting the requirements of ultra-high purity environments such as semiconductor applications;
- Can be directly mounted beneath IGS diaphragm valves or similar components to prevent backflow, requiring no additional lateral installation space.
Advanced Sealing and Material Integrity
At the core of the VICV Series' exceptional performance is its patented C-Seal technology. This design ensures a consistent, leak-tight closure that surpasses conventional elastomeric seals. The valve's wetted surfaces feature an advanced EP finish, achieving a surface roughness of maximum 5μin. Ra. This ultra-smooth finish minimizes particle entrapment and enhances the cleanability of the system.
Constructed from 316L VIM-VAR (Vacuum Induction Melting - Vacuum Arc Remelting) stainless steel, the body material offers superior corrosion resistance and an impeccably clean metallurgical structure, crucial for processes where contamination control is paramount. Every unit undergoes 100% helium leak testing, guaranteeing internal and external leak rates as low as 1x10⁻⁹ mbar·l/s.
Optimized Performance Metrics
The VICV Series is designed for versatility within demanding parameters, with a maximum working pressure of 150 psig and a standard temperature range of -10°C to 80°C. A defining feature is its exceptionally low cracking pressure of just 0.33 psig, which ensures the valve responds instantly to forward flow while preventing backflow with near-zero delay.
This sensitivity is vital for protecting downstream components in precision fluid systems. Furthermore, the flow capacity (Cv=0.2) is optimized to provide efficient system purging and media transport with minimal pressure drop.
| Parameter | Value / Range |
|---|---|
| Max. Working Pressure | 150 psig |
| Max. Working Temp | 14°F ~ 176°F (-10°C ~ 80°C) |
| Surface Finish | Max. 5 µin. Ra |
| Cracking Pressure | 0.33 psig |
| Materials (Body) | See ordering info |
| Leak Rate (Internal) | 1 × 10⁻⁹ mbar·l/s He |
| Leak Rate (External) | 1 × 10⁻⁹ mbar·l/s He |
| Flow Capacity | Cv = 0.2 |
Engineering for Next-Generation Systems
Looking beyond standard specifications, the VICV Series is an ideal choice for system designers aiming to future-proof their installations. The all-metal fluid path and hermetic sealing capability eliminate concerns regarding outgassing and permeation commonly associated with polymer seals, making these valves suitable for ultra-high purity (UHP) gas systems and aggressive chemical delivery.
The compact form factor, detailed in the dimensional diagrams, allows for dense system integration, saving valuable space in complex gas panels and analytical equipment.
By choosing the IGS VICV Series, engineers and procurement specialists invest in a component that ensures operational safety, process integrity, and long-term reliability. It is not merely a check valve; it is a critical enhancement for any system where purity, precision, and performance are non-negotiable.
