used, good condition, little used Pfeiffer brand Type Piccolo Bijdui7trq Motor 2.95 kW Cutting height approx. 150 mm Cutting width approx. 500 mm Blade diameter approx. 500 mm Roll table length on the right approx. 2900 mm Left roller table length approx. 2400 mm with scale with stop flap 3 pieces Space requirements approx. 700 mm x 600 mm x 1800 mm + 3000 mm x 600 mm x 900 mm + 2400 mm x 600. .pfeiffer-vacuum.com · Effective 2011-09-30 Page 2 of
Pfeiffer DuoLine 1.6 - 11. The new series of high performance two-stage rotary vane pumps with pumping speeds of 1.25 to 11 m 3 /h. The pumps are equipped with a single-phase motor plus an integrated safety and gas ballast valve. The availability of various motor voltages expands the field of applications With gas ballast Without gas ballast: 1.5 mbar 0.2 mbar: Rated power at 50 Hz 60 Hz: 5.5 kW 5.5 kW: Rated speed at 50 Hz 60 Hz: 1,500 rpm 1,800 rpm: Pumping speed at 50 Hz 60 Hz: 200 m 3 /h 240 m 3 /h: Water vapor tolerance at 50 Hz 60 Hz: 40 mbar 40 mbar: Water vapor capacity at 50 Hz 60 Hz: 4,000 g/h 4,600 g/h: Noise level without gas ballast. Alcatel Adixen Rotary Vane Vacuum Pump 2010SD 6.8 cfm REBUILT w/ 1 Year Warranty $ 1,600.00 Add to cart Welch Vacuum Pump 1405B-01 1405 3.2 cfm REBUILT w/ 1 Year Warrant
.5 CFM, 115 VAC and more from our comprehensive selection of Magnetically coupled rotary vane COVID-19 Update: To support you, Cole-Parmer is open for business and shipping product daily At regular temperatures, water vapors will begin to desorb from the surface of the vacuum chamber once the pressure has reached about 30 Torr. Water vapor pressure at this temperature is at 18 Torr so pressures below this marking will allow the greatest amounts of water to be evolved. The combinations of water vapor and gas will enter the vacuum pump near the inlet side and will then be sent into the high-pressure side through the pumping action.
In the end, a gas ballast valve is a very simple device that can be utilized to drive off condensables when operated properly. The Pfeiffer ACP series of dry lobe (or multi-stage roots) pumps offer many distinct advantages over other displacement pumps including: Dry multi-stage Roots technology, SD versions, ACP pumps with a pumping speed of max. 15, 28, and 40 m 3 /h; No particle contamination, thanks to frictionless design: no wearing parts in the pumped gases pat Page 18 Operation Fig. 11: Standard version 42 of gas ballast valve Gas ballast valve with If the pumping process requires the use of flushing gas, a supply hose can be connected at the gas ballast valve. flushing gas connec- tion (option) Fig OPERATING INSTRUCTIONS EN Translation of the original instructions DUO 125, DUO 125 M Safety instructions The safety instructions in Pfeiffer Vacuum operating instructions are the result of risk - Sight glass and gas ballast valve must be visible and readily accessible
Pfeiffer Adixen Alcatel 2021C2 Pascal Rotary Vane Vacuum Pump - REBUILT. Rebuilt with one year warranty. Pfeiffer Adixen Alcatel 2021C2 Pascal rotary vane vacuum pumps. These have dual voltage: 115-230V motors and have a manual gas ballast Gas ballast prevents condensation of vapors inside the pump by diluting the pumped gas with the air being drawn in through the ballast valve. Once the air is drawn in and mixes with the pumped gas, the water vapor being carried in the pumped gas makes up a smaller percentage of the gas, which now includes the ballast gas (air) as well The integrated two-stage gas ballast and safety valve ensure process-specific and safe operation. The proven quality of Pfeiffer Vacuum components guarantees the long lifetime. Easy maintenance of the pumps enables short service times and the efficient motor helps to reduce electricity costs Rebuilt with one year warranty. Pfeiffer Adixen Alcatel 2021i Instrument (analytical series) Pascal rotary vane vacuum pumps. These have dual voltage: 115-230V motors and the optional internal oil pump. This pump is necessary when the ballast is used for extended periods but is not advisable for pumps running with particulate in the oil Pfeiffer Vacuum Launches New Pump Range 07 April 2020 Pfeiffer Vacuum's new HiScroll models from the new range of scroll pumps are oil-free, hermetically sealed vacuum pumps with high nominal pumping speeds of 6 to 20 m³/h, with a compact design and quiet, low-vibration operation
the agreement of Pfeiffer Vacuum. • When pumping gases which could form explosive or ignitable mixtures, take suitable precautions: - If necessary, connect inert gas for ventilation or gas ballast supply. 2.3 Improper use The following are classed as improper use: Use for purposes which deviate from those described above, in particular IN STOCK - Please call for price and availability 855-466-6822. Out of Stock - Please Call for Availability - 855-466-6822 Pfeiffer PAC20 380v Roots Type Booster Blower Vacuum Pump Rebuilt, Refurbishe
Dry Vacuum Pump has integrated gas-ballast valve. - Oct 07, 2004 - Pfeiffer Vacuum, Inc - Sight glass and gas ballast valve must be visible and readily accessible. - Voltage and frequency information given on the motor rating plate must be visible. 5.2 Connecting the vacuum side Remove locking cap from the vacuum flange; - pay attention to the cone strainer and the respective O-ring in the intake port You can usually find indications for the maximum water vapor a pump can handle in the vacuum pump specification sheets. This is usually measured in grams (or ounces) of water per hour. If there is a chance that the pump will be experiencing higher levels of water than the specified limitations, a condenser might be a good solution. Moreover, the effects of the gas ballast on the ultimate pressure are lower, as the ballast gas is only admitted in the second stage Pump oil, which is also called as operating fluid, has multiple.
Gas ballast valve is to prevent the steam condensation in order to avoid the effective method to oil pollution.This method is to room temperature dry air hole bullishness of town into the compression chamber of pump and is pumped gas mixture.When the mixed gas compression to the exhaust pressure, due to the aeration effect makes the steam. OPERATING INSTRUCTIONS EN Translation of the original instructions Safety instructions The safety instructions in Pfeiffer Vacuum operating instructions are the result of risk - Sight glass and gas ballast valve must be visible and readily accessible
Pfeiffer Adixen Alcatel 2021SD Pascal rotary vane vacuum pumps. These have dual voltage: 115-230V motors and have a manual gas ballast. Fill out our request for quote form. Questions? Please call our toll free number at 866-332-0500 or send an email to our sales team! Specifications SD, I, C Consult Pfeiffer Vacuum's entire Rotary vane pumps - DuoLine catalogue on DirectIndustry. Operating fluid filling Rotation speed at 50 Hz Rotation speed at 60 Hz Emission sound pressure level without gas ballast at 50 Hz Ultimate pressure with gas ballast Ultimate pressure without gas ballast Weight Cooling method. standard Leak rate safety. Safety instructions The safety instructions in Pfeiffer Vacuum operating instructions are the result of risk evaluations and hazard analyses and are oriented on international certification stan-dards as specified by UL, CSA, ANSI Z-535, SEMI S1, ISO 3864 and DIN 4844. - Sight glass and gas ballast valve must be visible and readily accessible Integrated gas ballast valve extends the field of applications; Product. MVP 015-4, Diaphragm pump, 120 V, 60 Hz (PK T05 064) MVP 015-4, Diaphragm pump, 230 V, 50 Hz (PK T05 065) MVP 015-2 , Diaphragm pump, 100-236 V, 50/60 Hz (PK T05 100) MVP 015-2 DC, Diaphragm pump, 24 V DC (PK T05 150) MVP 015-4 DC, Diaphragm pump, 24 V DC (PK T05 160
These pumps have integrated gas ballast and safety valves and various motor voltages available which allow them to be used anywhere in the world. View the catalog Go to the Pfeiffer Vacuum website for more informatio Alcatel/Adixen ACP-15 Dry Pump Rebuilt, New, Refurbished, Used, Repai
Ultimate total pressure with gas ballast* (mbar) - 2 x 10-2 2 x 10-2 2 x 10-2 1 x 10-2 1 x 10-2 1 x 10-2 1 x 10-2 N/A No gas ballast port Water vapor tolerance (mbar) - 15 15 20 30 30 30 30 N/A No gas ballast port Water vapor capacity (g/h) - 60 100 160 350 550 350 550 N/A No gas ballast por Gas ballast valve Power connection Prohibition of an action or activity in connection with a source of danger, the disregarding of which may result in serious ac-cidents. Warning of a displayed source of danger in connection with operation of the unit or equipment. Command to perform an action or task associated with Pfeiffer Adixen Alcatel 2005SD Pascal Rotary Vane Vacuum Pump - REBUILT Oil seal rotary vane pumps are used in all vacuum technology applications. They can be used on their own to achieve a maximum vacuum of 0.75 Torr (10 -3 mbar), or in pumping assemblies, e.g. at the exhaust of a diffusion pump or turbomolecular pump .5 Cleaning the gas ballast valve 40.5.1 Gas ballast valve - standard version 40.5.2 Gas ballast valve - corrosive gas version 41.5.3 Adjusting the gas ballast valve silencer 42.6 Changing operating fluid type 43.7 Checking the oil level in the oiler (C version pumps only) 43 8 Decommissioning 45 8.1 Shutting down for longer.
Pfeiffer Vacuum pumps can be equipped with a series of adapted accessories. The in-stallation, operation and maintenance of connected devices are described in detail in - Sight glass and gas ballast valve must be visible and readily accessible. - Voltage and frequency information given on the motor rating plate must be visible Pfeiffer HiPace 1800 Turbo Pump Pricing and lead time confirmed with inquiry. Type of Product: Turbo Pump; Manufacturer: Pfeiffer; Condition: New; Price: ASK; Inlet: ISO200; Exhaust: KF40; Pumping speed: 1,450 l/s (N2); Compression ratio: > 1 x 10^8 (N2); Ultimate pressure: < 7.5 x 10-8 Torr (without gas ballast); Weight: 75 lbs *Additional Configurations Available Upon Reques A gas ballast valve (an option with V-VGA) prevents condensation of water vapour in the inside of the pump when low amounts of steam are sucked in when the pump is [...] at operating temperature. gd-elmorietschle.co The gas will also be compressed to the point where exhaust valves are activated and may attempt to flow back up the gas ballast line and escape. Here it will be prevented from leaving the system through the activation of the non-return check valve. These are typically simple mechanisms with a spring-loaded valve that opens to allow passage but then closes to prevent gas from escaping. 9 Pumping speeds 10,000 Pumping speed with gas ballast [m³/h] 1,000 100 10 1 Pressure [mbar] 10-2 10-1 101 100 102 103 50 Hz WU 232 WU 412 WU 942 WU 1902 WU 3302 WU 5002 60 Hz Combination of OktaLine™ Roots pump and HenaLine™ rotary vane pump Okta 250 Okta 500 Okta 1000 Okta 2000 Okta 4000 Okta 6000 Hena 60 WU 232 WU 392 WU 752 Hena 100 WU.
We support all major manufacturers including Pfeiffer Vacuum, Alcatel / Adixen, Edwards Vacuum, Varian, Oerlikon / Leybod Vacuum, Vacuubrand, and Agilent Technologies.Soon the volume of dry gases and vapors will be reduced by the mechanisms which are increasing pressure on the exhaust. This mixture is combined with the partial pressures of both gas and vapor constituents that make up the sum pressure of the entire chamber. Once the gas ballast has opened air will be introduced to the chamber and restore normal atmospheric pressures. Pfeiffer Adixen ACP 28 Compact Dry Vacuum Pump With Manual Gas Ballast, V6SATSFKMF Pfeiffer ACP 28 Compact Dry Vacuum Pump (w/Manual Gas Ballast) - Features: The multi-stage technology of the ACP series meets the requirements of applications where clean and dry vacuum is needed Magnetic coupling yes. PFEIFFER VACUUM PUMP MOD# DUO-030A FLOW RATE: 30 CODE: VAC-234. SPECS BELOW FOR REFERENCE. RELIANCE DUTY MASTER AC PUMP MOTOR 3/4HP 115/230VAC 50HZ. # E77R1870M 2875RPM. RELIANCE DUTY MASTER AC PUMP MOTOR 3/4HP 220VAC 50HZ Page 42 Malfunctions Symptom Cause Remedy Bad vacuum Gas ballast Check if the gas ballast is open. Warning: if the application re- quires it, the gas ballast must remain open at the expense of the limit pressure! If the purge is used: check the purge connection between pump Purge (G and CV versions) and installation
nally connected in series. Gas coming from the inlet enters the compression space of the first piston (stage I). After compression, the now higher pressure gas enters the compression space of the second piston (stage II). Once the gas reaches a pressure slightly above atmosphere it leave the pump via a one way valve PFEIFFER VACUUM PUMP MOD# DUO-030A FLOW RATE: 30 CODE: VAC-234. MOTOR DEFECTIVE. & broken valve hole.see pictures. SEE SPECS. BELOW FOR REFERENCE. Helpful Links. Rotation speed at 60 Hz 1800 min-1 When the gas ballast valve is opened it will prevent the vacuum pump from fully achieving the vacuum. Once the cycle has neared its end and a lower pressure is needed, the gas ballast can then be closed once all of the water has been pumped from the system.A proper non-return check valve is another important component of all gas ballast valves and is located between the exterior and the intake into the stator volume. It is important to the process that air enters the pump, but we don’t want vapor mixtures and exhaust gasses to leak out through the gas ballast valve. This is prevented by the non-return check valve closing the ballast line once the point in the process where pressure exceeds atmospheric pressure has been reached and exhaust valves opened.
Pfeiffer Duo 2.5 PKD41062C Rotary Vane Vacuum Pump - Agilent G3170-80025 Pfeiffer Duo 2.5 PKD41062C Rotary Vane Vacuum Pump 100-150/110-130V 50/60Hz Agilent G3170-80025 Emission sound. Ultimate pressure with gas ballast 3.0 hPa Ultimate pressure without gas ballast 2.5 hPa Weight 4.3 kg Cooling method, standard Air Leak rate 1 · 10-2 Pa m3/s Pumping speed 1.8 m3/h Switch No Protection category IP 40 Current consumption 4.5 A Ambient temperature 12-40 °C Supply: Voltage 24 V DC Order number MVP 030 PK T01 190 Accessories.
4.1.6 Gas ballast. Means through which air or another non-condensing gas is admitted into a vacuum pump are referred to as gas ballast. If the pump is displacing vapor that would condense in the pump at the corresponding temperatures without gas ballast, the gas ballast enables the outlet valve to open before the vapor condenses, and the vapor is discharged together with the ballast gas Pfeiffer ACP 28 Compact Multi-stage Roots Type Booster Blower Vacuum Pump Rebuilt, Refurbished. Item Number: PFEIFFER-ACP-28 High flow gas ballast ports and drainable silencers allow the ACP to pump high amounts of condensable vapors (up to 1,000 g/h of pure water vapor).. Most HyVac Products, Inc. vacuum pumps are shipped and contain a feature known as the gas ballast valve. This is viewed as a black adjustable knob on top of the pump. Often in vacuum work, the user will get water vapor, solvent vapor or other bad contaminants as part of the gas stream being evacuated from the vacuum chamber A & J Vacuum Services provides repair service for all types of High Vacuum equipment. We perform Turbomolecular Pump repair, Turbo Pump Repair, Dry Pump repair, Vacuum Pump repair, Mass Spectrometer repair, Rotary Vane Pump repair, Vacuum Booster repair, and Leak detector repair. Our highly trained technicians have years of experience and guarantee the highest quality service. Type of Product: Scroll PumpManufacturer: PfeifferCondition: NewPrice: ASKInlet: KF25Exhaust: KF25Pumping speed: 10.65 CFMUltimate pressure: 5.25 x 10-3 Torr (without gas ballast)Weight: 50 lbs*Additional Configurations Available Upon Request Technical SheetManual Videos Coming Soon. Coming Soon
(oiler) - Option: Special gas ballast valve for inert gas inlet (N 2 ) to The UNO 250 A is a single stage and the DUO 250 A is a two prevent atmospheric air entering the system. stage rotary vane pump. Page 5: Installation 3. Installation 3.1. Preparations For Installation 3.3 Safety instructions The safety instructions in Pfeiffer Vacuum operating instructions are the result of risk evaluations and hazard analyses and are oriented on international certification stan- dards as specified by UL, CSA, ANSI Z-535, SEMI S1, ISO 3864 and DIN 4844
Provac Logo SHOP BY BRAND SHOP BY TYPE PUMP REPAIR a 831-462-8900 8:30am–5pm PST Mon–FriWhen vacuum pumps have a faulty gas ballast valve that has no stopping point, a variety of issues can arise. As the valve is released, it could eventually pop right off allowing the full measure of air to enter the pump. Operating with a fully-opened gas ballast increases the flow rate, while limits the ability to achieve the maximum ultimate vacuum. Emission sound pressure level w/o gas ballast ≤ 45 dB(A) Flange (in) G 1/8 + hose wave DN 6: Flange (out) Pfeiffer MVP 030-3DC Dry Diaphragm Vacuum Pump - REBUILT Part # PK T01 191 MVP 030-3DC 24 V Part # PK T01 150 MVP 020-3DC 24 Pfeiffer MVP 015 Dry Diaphragm Vacuum Pump - NEW Part # PK T05 064 MVP 015-4 120 V, 60 Hz Part # PK T05 065 MVP 015-4 230 V, 50 Hz Part # PK T05 068 MVP 015-4 DC, G 1/8 Part # PK T05 100 MVP 015-2 100-115/208-236 V, 50/60 H
Properly using a gas ballast valve as found on a mechanical oil sealed vacuum pump has been considered by some to be an arcane art and practiced blindly much of the time. Actually, gas ballasting is a very simple operation and when properly applied can keep vacuum pumps in optimal conditions even when used in wet processes that can potentially contaminate the oil with condensation. Abstract: A gas ballast system for a multi-stage positive displacement pump in which a first stage includes at least one positive displacement pump stage, is equipped with an inlet valve and an outlet valve, and is connected with the following stage by an intermediate vacuum chamber, with the gas ballast system including a first conduit for.
Maintenance Fig. 24: Cleaning the gas ballast valve Gas ballast filter Gas ballast line Gas ballast valve Removing and cleaning the gas ballast filter 1. Dismantle the gas ballast filter. 2. Clean the gas ballast filter using compressed air. 3. Replace the filter in the event of strong contamination or damage. 4 Find Your Pump. Select one or all and click Search. Manufacturer
Scroll pumps are an excellent alternative to rotary vane pumps where oil free pumping is desirable. The XDS pumps in particular use an innovative bearing shield to isolate the vacuum environment from all forms of lubricant not only making them totally dry, but also protecting the bearing from any process gases. Vapour handling is enabled by an adjustable gas ballast; this allows the range of. Pfeiffer Vacuum scroll pumps from the HiScroll range. Excellent water vapor tolerance thanks to the two stage gas ballast. As a result condensation in the vacuum pump is avoided. With these features, the pumps are ideal for use in many applications in analytics, biomedicine, pharmaceuticals and research and development..
To avoid the added work of hand-operating the gas ballast valve, this task can be handled by a solenoid operated valve that can be connected to the main process control system and controlled automatically. This is convenient because there are stages during the process where this valve should be opened and other times when it should remain closed. There are also some processes that involve hazardous gases. Because both oxygen (O2) and water (H2O) are constituents of the air around us, they can react with some chemicals in a process, for this reason, nitrogen can be used because of its inert qualities. - Single-stage, high-performance rotary vane pump with a pumping speed of 4.8 m³/h at 50 Hz / 5.8 m³/h at 60 Hz - With single-phase motor with C14 connector plug inside the terminal box - Integrated gas ballast and safety valve - For all low and medium vacuum applications - Optional with magnetic coupling - Special feature: Various motor voltages for worldwide employment - Other motor. Consult Pfeiffer Vacuum's entire Single-stage rotary vane pumps - HenaLine catalogue on DirectIndustry. Rotation speed at 60 Hz Emission sound pressure level with gas ballast at 50 Hz Emission sound pressure level without gas ballast at 60 Hz Ultimate pressure with gas ballast Ultimate pressure without gas ballast Gas ballast Weight Cooling. Duo 6 and Duo 6M by Pfeiffer Vacuum feature different properties that are unique for rotary vane pumps. They can be easily integrated into different systems. Duo 6 and Duo 6M are the smallest. Ultimate pressure with gas ballast Ultimate pressure without gas ballast Weight with motor Cooling method, standard Pumping speed, max. Protection category Current consumption Ambient temperature Supply: Voltage Emission sound pressure level without gas ballast Order numbers Diaphragm pump Easy installation System set-up is very easy and cost.
Pfeiffer DUO 5 Rotary Vane Pump Rebuilt, New, Refurbished, Used, Repair SHOP SIGN UP / LOGIN ABOUT PROVAC DOCUMENTATION SHIPPING BLOG CONTACT PROVAC Provac Shop Vane Pumps Pfeiffer DUO 5M Rotary Vane Pump. Pfeiffer DUO 5M Rotary Vane Pump 3.53 CFM (60Hz) Ultimate pressure: 3 x 10-3 Torr (without gas ballast) Weight: 55 lbs *Additional. The correct use of the Gas Ballast valve on a mechanical oil sealed rotary vacuum pump has always been seen as black science or just plain guesswork. It is a very simple device and when used correctly can keep a vacuum pump working well even though it may be used on a very wet process and the oil becomes contaminated with condensed vapors not be used without the agreement of Pfeiffer Vacuum. Special Models Helium tight model: - Operating Fluid P3 - Leak rate < 1 • 10-5 mbar l/s - Additional radial shaft seal (total of 3) with sealing oil chamber (oiler) - Option: Special gas ballast valve for inert gas inlet (N2) to prevent atmospheric air entering the system
Ultimate total pressure closed gas ballast: 0.0015Torr (0.2Pa) Ultimate total pressure open gas ballast: 0.0075Torr (1Pa) Water vapor capacity: 110/100 g/h: Water vapor pressure: 12/10 mbar: Oil capacity: 0.95 L: Vacuum Pump Oil: 32 Oz high-quality oil is included for immediate use ( click picture below to order spare) Inlet/Exhaust flange. Duo 3 M Pump by Pfeiffer. Integrated gas ballast and safety valve Oil return device is included with the pump For all low and medium vacuum applications Special feature: various motor voltages for wide range of application fields Pfeiffer DUO Major Repair Kit for 1.6 M and 3 M Pump Buy Pfeiffer PK-D63-712 Magnetically couple rotary vane, 14 CFM, 230 VAC and more from our comprehensive selection of Magnetically coupled rotary vane. Dual mode pump with gas ballast allows for vacuum settings for many different applications. View Virtual Catalog - Spanish To avoid condensation in the pump, vapours 4.5. Gas Ballast Valve (For Corrosive Gas should only be pumped off when the pump is Processes) warm and with gas ballast valve open. Note Gas ballast valve 7 is equipped with a dosing unit 7.3 and a pump water vapour compatibility levels under flushing gas connection 7.4
The gas ballast averts this by causing the outlet valve to open before the vapor condenses, and the vapor is discharged together with the ballast. Summary Now that you better understand how vacuum-pump oil is contaminated, next time we will discuss how gas ballasting is performed and address its advantages and limitations ACP 40, Standard, single phase, manual gas ballast Similar Image www.pfeiffer-vacuum.com Page
Gas Ballast valve Assy for Pfeiffer MVP 015-T Diaphragm Pump, PK 050 148-U. Gas Ballast Valve is fitted with the MVP 015-T. The pumping of air or process gases can cause moisture/vapour to condense in the pump. This has an effect on the attainable final pressure and the volume flow rate levels. The rate of expulsion of condensate can be. The Pfeiffer Adixen Pascal 2005 SD Rotary Vane Pump is a versatile dual-stage vacuum pump that is compact and used in many industrial, scientific and research applications. The universal single-phase motor can be disassembled independently from the pump for easy vacuum pump oil changes Integrated gas ballast valve extends the field of applications Compact diaphragm pump with a pumping speed of up to 0.7 m 3 /h For mains voltage: 90-127 V, 50 Hz, respectively 187-265 V, 60 H The pumping of air or process gases can cause moisture/vapour to condense in the pump. This has an effect on the attainable final pressure and the volume flow rate levels. The rate of expulsion of condensate can be increased by admitting gas ballast air and the pump will attain the specified final pressure within a shorter time. This is achieved by setting the sleeve 43 on gas ballas valve to the position "open" (Y)
Integrated gas ballast valve allows few amounts of humidity Ideal for applications where a dry and oil-free vacuum is required Pumping speed MVP 040-2, Diaphragm pump MVP 040-2, Diaphragm pump S [m 3 /h] p [hPa] 10 0.1 1 1 10 100 1000 MVP 040-2 (50 Hz) S [m 3 /h] p [hPa] 10 0.1 1 1 10 100 1000 MVP 040-2 (60 Hz) Dimensions (in mm) 65 125 238 (W. Properly using a gas ballast valve as found on a mechanical oil sealed vacuum pump has been considered by some to be an arcane art and practiced blindly much of the time. Actually, gas ballasting is a very simple operation and when properly applied can keep vacuum pumps in optimal conditions even when used in wet processes that can potentially contaminate the oil with condensation. When vacuum. Pfeiffer Vacuum scroll pumps from the HiScroll range. Excellent water vapor tolerance thanks to the two-stage gas ballast. As a result, condensation in the vacuum pump is avoided. With these features, the pumps are ideal for use in many applications in analytics, biomedicine, pharmaceuticals and research and development This operating manual is for customers of Pfeiffer Vacuum. It describes the func-tioning of the designated product and provides the most important information for • Gas ballast valve with dosable flushing gas connection • Vane material different e t a rk a e•L ≤ 1*10-5 mbar * l/s. 8 Installatio