The Best in New Delhi

Dinesh High Vacuum Engineering Ultra Oil 20 (DUO 20) is a heavy-duty, highly refined hydrotreated hydrocarbon lubricant engineered specifically for large-scale, multi-stage rotary vane and mechanical booster vacuum pumps. Designed to function as a direct, 100% drop-in equivalent to Edwards Ultragrade 20, DUO 20 provides the enhanced kinematic viscosity and robust thermal tracking required to protect high-throughput vacuum machinery operating under sustained thermal loads. Standard vacuum oils often shear or volatilize when pumps run hot for extended periods. DUO 20 mitigates this risk by utilizing a advanced hydro-cracked base oil infrastructure. By completely purging reactive aromatics, sulfur compounds, and unstable molecules, DUO 20 achieves a remarkably high viscosity index. Combined with our proprietary oxidation inhibitors, this fluid maintains its lubrication films at peak operational temperatures, reliably sealing clearances to maximize constant volumetric displacement and prevent internal backstreaming. 🛡️Key Features & Technical Benefits -- Exact Edwards Ultragrade 20 Technical Alternative : Formulated to mirror the chemical makeup and performance thresholds of Ultragrade 20, eliminating the need for expensive system flushing during switchovers. -- Elevated Viscosity Index (60-68 cSt @ 40°C) : Provides robust hydrodynamic lubrication films inside larger mechanical pumps, ensuring tight rotor-to-stator clearances are perfectly sealed even under harsh continuous-duty applications. -- Exceptional Low Volatility (1x10^-7mbar at 20°C ) : High molecular weight limits oil vaporization into the process stream, protecting system purity and ensuring deep ultimate vacuum acquisition. ✅Core Applications & Equipment Compatibility DUO 20 vacuum oil is optimized for large industrial, chemical, and metallurgical vacuum environments where massive gas volumes are processed continuously. 1) Target Pump Models : -- Edwards Industrial Pumps: E1M40, E1M80, E2M40, E2M80, E2M175, E2M275 series rotary vane lines. -- Mechanical Boosters: Backing oil compatibility for Edwards EH series (EH250, EH500, EH1200, EH2600) and mechanical blower backup systems. -- Cross-Brand Large Machinery: Suitable for heavy industrial pumps from Leybold (Trivac D40B/D65B), Bush, and Kinneys requiring an ISO VG 68 equivalent high-vacuum fluid. 2) Common Industrial Settings : -- Vacuum Distillation, Freeze Drying, & Large Scale Dehydration Systems -- Vacuum Furnaces, Laser Sintering, & Plasma Metallurgy -- Transformer Oil Purification & Degassing Systems -- Large Analytical Mass Spectrometer Backing Systems -- Space Simulation Chambers & High-Volume Component Testing

Dinesh High Vacuum Engineering Ultra Oil 19 (DUO 19) is a premium-grade, hydrotreated hydrocarbon vacuum pump oil engineered for small-to-medium two-stage rotary vane vacuum pumps. Specially formulated to serve as a direct, high-performance equivalent to Edwards Ultragrade 19, DUO 19 delivers identical viscosity profiles, exceptional thermal stability, and low backstreaming under demanding industrial and laboratory environments. Unlike standard solvent-refined lubricants, DUO 19 undergoes a rigorous hydrotreating process. This severe molecular refining completely eliminates sulfur, nitrogen, oxygen, and aromatic ring structures, leaving a virtually transparent, chemically inert base stock. When combined with our advanced anti-oxidant, anti-wear, and rust-inhibiting additive package, DUO 19 enables your vacuum infrastructure to run cooler, pull deeper ultimate vacuums, and extend oil drain intervals by resisting chemical degradation. 🛡️Key Features & Technical Benefits -- 100% Drop-In Edwards Ultragrade 19 Equivalent :- Seamlessly mix or switch during routine maintenance without flushing risks or seal compatibility issues. -- Ultra-Low Vapor Pressure :- Minimizes backstreaming and oil degradation, allowing your vacuum pumps to reach their maximum engineered ultimate vacuum levels. -- Optimized Cold-Start Lubrication :- Perfectly balanced viscosity profile reduces startup torque requirements, protecting internal mechanical components from dry friction wear during initial cold starts. ✅Core Applications & Equipment Compatibility DUO 19 vacuum pump oil is precision-formulated for high-vacuum installations across analytical research, semiconductor manufacturing, and industrial operations. 1.) Compatible Pump : Models : Edwards Rotary Vane Pumps :- RV3, RV5, RV8, RV12, E2M18, E2M28 series. Cross-Brand Compatibility :- Alcatel-Adixen C1 series, Pfeiffer DUO Line, Busch R5 series (less than 40m^3/hr), Leybold Trivac, and Rietschle V Series. 2.) Industry Applications: - Mass Spectrometry & Electron Microscopy (SEM/TEM) - Thin-Film Vacuum Sputtering & Optical Coating Systems - Helium Leak Detection Operations - Vacuum Metallurgy & Heat Treatment Furnaces - UHV (Ultra-High Vacuum) System Backing Lines

PERFORMANCE YOU CAN TRUST ON The DHVE series is the ultimate range of best oil sealed rotary vane pumps- The result of more than 35 years’ experience and a clean sheet design programmer, these rugged vacuum pumps offer an excellent ultimate vacuum with good pumping speeds as well as superior vapor handling capabilities and quiet operation. The firm offers Rotary vane vacuum pumps are designed with decade of experience for excellent performance and modest maintenance. They are widely used for Laboratory distillation, Screen Printing, Bottle Filling Pharmaceuticals, Food beverages industries with proven performance. These pumps are available in various models such as V-Belt Driven, Direct Driven and Flange type. Specialist in compact design is its success for application in Offset Printing, Cartooning, Powder filling, Labelling, Packaging Industries. Versatile vacuum pumps with unique features successfully proved on Semi / High speed automatic Capsule filling machines / Filtration / transferring / Holding / Conveying & Packaging machines. Applications- You can be assured DHVE has the application expertise and the pumps or integrated system solution to meet your needs. Mass spectrometry- • GCMS, LCMS, ICPMS, MALDI, RGA, surface science, leak detectors High energy physics- • Beam lines, accelerators, mobile pump carts, turbomolecular pump backing, laser evacuation Research and development- • Chamber evacuation, coating systems, turbomolecular pump backing Industrial- • Glove boxes, coating systems, freeze drying, gas bottle filling/emptying, refrigeration system manufacture, degassing/curing (oil, epoxy resin) Chemical- • Gel dryers, glove boxes, rotary evaporators, centrifuges, distillation/extraction/filtration