'pump housing'

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

We have been counted amongst the most trusted names in this domain, engaged in providing supreme quality range of Diffusion Pump Oil. This Diffusion Pump Oil is known for its high purity and effectiveness. Our product range is made by using supreme quality raw material.

Max Flow Rate 500-50000 Litres per Product Description Our organization specializes in providing high quality Diffusion Pumps. These pumps use a high throughput speed that provide fastest cycle time, saving precious time which results in more profits for the buyers. These pumps have heavy metal body to give durability. These pumps are developed from quality grade components provided by trustworthy vendors to offer you the best of the products. These pumps are responsive and leakage proof. These pumps are proficient in working with cost efficient nature . Features : Heavy duty Corrosion free body Optimum functionality

Banking on the ability and knowledge of skilled team of workers, we are engaged in providing a quality rich quality of Vacuum Oils to meet various requirements of our clientele. These products are accessible in market in dissimilar packaging options. In addition to this, we assure optimum quality and properly checked and safely delivered at reasonable prices. Features & Benefits of Rotary Vacuum Pump Oil : Thermal Stability Provides excellent lubrication to the pump Low vapor pressure High viscosity index Excellent Vacuum Level Suitable for rotary/mechanical vacuum pumps of all makes and models around the world.

Turbo Packages Turbo Vacuum provides economical solutions for simple-to-purchase, small, complete turbo pump systems, ready to use. These packages include turbo pump, integrated controller, power supply, air cooling kit, and connection cables. Features • Economical solutions • Reliable • Ready to use & simple • Dual voltage 90-240v • Units Provided as Complete Package TG60F TG 60 Technical Specifications Inlet Flange: KF40, ISO 63, CF 63 Pumping Speed, L/S (N): 60 Pumping Speed, L/S (He)): 55 Pumping Speed, L/S (H): 22 Ultimate Pressure (mbar): 10-9 Startup Time (min): 1.5 Rotational Speed (rpm): 80,000 Orientation: Any Backing Pressure (mbar): 6 Outlet Flange: NW 16 Weight (lb): 10 Controller: TC66 Complete System Price: $3,975.00 Ordering Information TG60FKAB-OEM TG60FRAB-OEM TG60FCAB-OEM TG240F TG 240 Technical Specifications Inlet Flange: ISO 100, CF 100 Pumping Speed, L/S (N): 240 Pumping Speed, L/S (He)): 160 Pumping Speed, L/S (H): N/A Ultimate Pressure (mbar): 10-10 Startup Time (min): 5 Rotational Speed (rpm): 48,000 Orientation: Any Backing Pressure (mbar): 6 Outlet Flange: NW 25 Weight (lb): 18 Controller: TC245 Complete System Price: $7,600.00 Ordering Information TG240FRAB-OEM TG240FCAB-OEM TV90I TV90i Technical Specifications Inlet Flange: ISO 63, CF 63 Pumping Speed, L/S (N): 90 Pumping Speed, L/S (He)): 90 Pumping Speed, L/S (H): 78 Ultimate Pressure (mbar): 10-10 Startup Time (min): 1.5 Rotational Speed (rpm): 72,000 Orientation: Any Backing Pressure (mbar): 14 Outlet Flange: NW 16 Weight (lb): 7 Controller: Integrated Complete System Price: $4,850.00 Ordering Information TV90I-SYS-ISO TV90I-SYS-CF TV250I TV250i Technical Specifications Inlet Flange: ISO 100, CF 100 Pumping Speed, L/S (N): 225 Pumping Speed, L/S (He)): 250 Pumping Speed, L/S (H): 210 Ultimate Pressure (mbar): 10-10 Startup Time (min): 2 Rotational Speed (rpm): 72,000 Orientation: Any Backing Pressure (mbar): 14 Outlet Flange: NW 16 Weight (lb): 13 Controller: Integrated Comp

Turbomolecular pump system Technical Data More Information Article Number 101351 Pumping speed N2 - Nitrogen in l/s 67 Ultimate pressure in mbar (Torr) 5x10-7 Wired for 230V, 50/60Hz Intake connection DN 63 ISO-K Exhaust connection DN 16 KF Dimensions (W/D/H) in mm 480/500/700 Weight kg (lbs) 20 (44)

A High Vacuum Pumping system consists of Rotary Pump, Booster pump and oil diffusion pump is made ready for shipment to reputed client for cryogenic vessel evacuation.The system is tested upto a vacuum level of 5X10(-6) mbar. Another achievement of Alfatechnovac Team

In today's high-stakes manufacturing and processing environments, achieving a truly oil-free, high-efficiency vacuum is non-negotiable. Traditional pumps often introduce the risk of contamination, high maintenance burdens, and poor energy performance. Dinesh High Vacuum Engineering (DHVE) is proud to present its next-generation line of Dry Screw Vacuum Pumps—the definitive solution for applications demanding purity, precision, and the lowest possible cost of ownership. This detailed guide explores the superior technology, advanced features, and material science that make DHVE dry screw pumps the industry's gold standard. ⚙️ Technical Mastery: The Science Behind DHVE Dry Screw Pumps A dry screw pump is a masterpiece of precision engineering. Unlike wet pumps, which rely on lubricating fluids, the DHVE dry screw mechanism achieves its vacuum purely through mechanical action in an oil-free environment. The Core Mechanism: Non-Contact Compression The heart of the pump consists of two parallel, precision-machined helical screw rotors that rotate in perfect synchronization. Axial Gas Transport: As the rotors spin in opposite directions, the threads intermesh without making physical contact. This action traps process gas at the inlet and progressively transports it along the axis of the screws toward the exhaust. Internal Compression (Variable Pitch): DHVE models utilize a variable pitch screw design. This advanced geometry features a decreasing pitch (thread spacing) toward the discharge end. This progressive reduction in volume creates internal compression, which is a crucial feature: It minimizes the pressure difference between the last compression chamber and the exhaust, significantly reducing backflow leakage (or 'slip losses'). This results in higher volumetric efficiency and lower power consumption compared to constant-pitch designs. Gap Sealing: The vacuum is maintained by extremely tight, micron-level clearances between the rotors and the casing, and between the rotors themselves. This non-contact principle eliminates wear, ensures process purity, and is the foundation for the pump’s exceptional reliability. 🛡️ Corrosion & Contaminant Handling: Built for Harsh Environments The dry screw design inherently handles condensable vapors and particulates better than oil-sealed pumps. However, for the aggressive chemical and pharmaceutical sectors, DHVE offers pumps built with specialized material science to ensure longevity and zero failure. Advanced Materials for Chemical Resistance For applications involving highly corrosive gases like concentrated acids, solvents, and chlorides, Dinesh High Vacuum Engineering utilizes premium materials and coatings: Stainless Steel Rotors (316L and Duplex): For mild to moderately corrosive process streams, 316L offers excellent general resistance. For extreme environments, Duplex stainless steel (UNS S32205 / S32750) is utilized, providing superior resistance to pitting, crevice corrosion, and stress cracking, especially against chlorides and organic acids. Anti-Corrosion Coatings: The internal surfaces of the pump casing and rotors are often protected with thick, robust coatings such as Nickel Plating (ENP) or PEEK (Polyether Ether Ketone).14 These barrier layers prevent direct contact between the metal substrate and the aggressive process media. Gas Ballast System: Every DHVE dry screw pump is equipped with a gas ballast port. Introducing a small, controlled amount of inert gas (like Nitrogen) heats the pump and lowers the partial pressure of condensable vapors, ensuring they remain in the gaseous state and are safely expelled, preventing liquid condensation and subsequent corrosion. 🌐 Applications & Industrial Purity The unique combination of oil-free operation, VSD energy efficiency, and chemical resistance makes the DHVE Dry Screw Vacuum Pump the definitive choice across critical industries: Pharmaceuticals & Lyophilization: Guarantees absolute product purity, essential for drug safety and solvent recovery processes like freeze drying. Semiconductor & Electronics: Meets the stringent demands for ultra-clean vacuum required in PVD/CVD coating, etching, and load lock chambers. Chemical Processing: Reliable performance in challenging duties such as vacuum distillation, solvent stripping, and reactor service, backed by our corrosion-resistant material options. Ready to Optimize Your Vacuum Process? The decision to invest in a Dry Screw Vacuum Pump is an investment in process reliability, energy efficiency, and product purity. By choosing Dinesh High Vacuum Engineering (DHVE), you gain access to cutting-edge technology, expert application support, and a pumping solution engineered for decades of low-maintenance operation. ➡️ Contact Dinesh High Vacuum Engineering today to speak with one of our vacuum specialists and receive a quote tailored to your exact industrial requirements!

For applications that demand the absolute highest standards of vacuum purity, stability, and speed, the Turbomolecular Pump (TMP) is the undisputed technology of choice. Operating in the high vacuum (HV) and ultra-high vacuum (UHV) regimes (down to $10^{-11} mbar), TMPs are the essential workhorses of the semiconductor, research, and analytical science industries. Dinesh High Vacuum Engineering (DHVE) delivers state-of-the-art Turbomolecular Pumps, combining high rotational speeds, advanced bearing technologies, and expert engineering to ensure a hydrocarbon-free environment for your most sensitive processes. I. ⚙️ The Core Principle: Momentum Transfer in Molecular Flow The Turbomolecular Pump functions as a highly specialized, multi-stage momentum transfer pump. It works on the principle that gas molecules, under the conditions of molecular flow, can be given momentum in a preferred direction by repeated collisions with a fast-moving solid surface. How the TMP Achieves UHV Molecular Flow: TMPs are effective only when the system is already at a low enough pressure (typically below $10^{-3} mbar) where the gas is in the molecular flow regime. In this regime, the mean free path of gas molecules is greater than the distance between the pump's internal surfaces. This means molecules collide primarily with the pump surfaces rather than with each other. Rotor and Stator Blades: The pump consists of multiple alternating stages of rapidly rotating rotor blades and stationary stator blades (or discs) that resemble a jet engine turbine. Rotor Action: The rotor blades, spinning at extremely high speeds (often 20,000 to 90,000 RPM), 'hit' gas molecules, imparting a downward momentum towards the pump's exhaust. The resulting velocity of the molecule is the sum of its thermal velocity and the rotor's blade velocity. Stator Action: The fixed stator blades act as baffles, preventing the now-accelerated molecules from moving back toward the inlet while directing them into the next stage of the rotor. Compression: This repetitive collision process, across many stages, successively compresses the gas until it reaches a high enough pressure to be efficiently removed by a backing pump (fore-vacuum pump), typically a dry screw or rotary vane pump. II. 💡 Modern Turbopump Design: Hybrid and Wide-Range Models Modern TMPs often feature a hybrid design to enhance performance across the pump's pressure range: Turbine Stages (Inlet): These stages, with finely pitched blades, are optimized for maximum pumping speed at very low pressure (molecular flow). Molecular Drag Stages (Exhaust): Located near the backing pump, these stages (e.g., Holweck or Siegbahn mechanisms) use rotating drums or discs with helical channels to actively drag gas molecules. They are optimized for higher compression ratios at higher pressures, which dramatically improves the pump's ability to handle the light gases (like Hydrogen and Helium) and allows for a smaller, more economical backing pump. DHVE specializes in Wide-Range TMPs that integrate these drag stages, offering a superior compression ratio, especially for light gases which often leak back through traditional pure turbine designs. IV. 🌍 Essential Applications for DHVE Turbomolecular Pumps The superior ultimate vacuum, clean operation, and high pumping speed make TMPs from Dinesh High Vacuum Engineering indispensable in the following critical fields: Semiconductor Manufacturing: Essential for demanding processes like PVD (Physical Vapor Deposition), CVD (Chemical Vapor Deposition), and ion implantation where even trace hydrocarbon contamination can destroy microchips. Analytical Instruments: Used in Mass Spectrometry (MS), Gas Chromatography-Mass Spectrometry (GC-MS), and Electron Microscopy (SEM/TEM) to create the ultra-clean vacuum required for particle beam generation and precision analysis. Research & Development: Critical for high-energy physics accelerators, space simulation chambers, and surface science experiments that necessitate extreme vacuum conditions (UHV). Coating Industry: Key for achieving high-quality, defect-free optical and thin-film coatings. Partner with Dinesh High Vacuum Engineering For over 30 years, Dinesh High Vacuum Engineering (DHVE) has been a trusted manufacturer in the high-vacuum technology space. Our Turbomolecular Pumps are engineered for demanding industrial uptime, minimal vibration, and unparalleled purity, ensuring reliable performance in your most sensitive vacuum processes. ➡️ Contact Dinesh High Vacuum Engineering today to discuss your specific UHV requirements and find the perfect Turbomolecular Pump solution for your application.