Parsol – D1
Premium quality diffusion vacuum pump oil
Optimized Pump Fluids for High-Performance Diffusion Pumps
Selecting the ideal fluid for oil diffusion pumps requires a precise balance of critical properties. An effective pump fluid must demonstrate low vapor pressure at room temperature while maintaining exceptional resistance to thermal decomposition and oxidation. High surface tension is essential to minimize oil creep, and the fluid must be chemically inert with a high flash point. Furthermore, it should enable high pumping speeds across broad pressure ranges while remaining cost-effective.
Since no single fluid can excel in all these parameters simultaneously, the key to optimal performance lies in carefully matching the pump fluid to your specific operating pressure and application requirements. At Parsol Vacuum, we provide specialized fluid solutions engineered to meet these diverse operational demands.

Exceptional stability under varying operating conditions
Extended service life and reduced maintenance requirements
Reliable performance across diverse applications

Characteristics:
Our Parsol D1 diffusion pump oil is precision-engineered from carefully selected high-quality base materials, undergoing stringent distillation processes to ensure closely toleranced fractions and exceptional purity.
As our standard diffusion pump fluid for high vacuum applications, Parsol D1 delivers reliable performance with excellent thermal stability, making it the ideal choice for maintaining optimal vacuum levels in demanding industrial and research environments.
Application:
- Vacuum melting and casting
- Fiber optics production
- Vacuum annealing furnaces
- Surface science studies
- Molecular distillation
- Optical lens coating
- Semiconductor & Electronics Manufacturing


Supported Vacuum pumps:
All Diffusion Pumps from various brands