Welch Chemstar

Welch ChemStar 1400N 0.9 cfm 0.1 Micron Belt Drive 2-Stage Pump ***Note: This item has a possible 1-2 week lead time depending on stock availability.***  Product Details Low rotation speed for longer service life Vital parts corrosion resistant Large oil reservoir dilutes contaminants ChemStar belt-driven Vacuum Pump is designed to tolerate harsh chemical contamination. Vital pump parts are corrosion resistant. The large oil reservoir with PTFE surfaces dilutes contamination and the low pump rotational speed lessens friction to reduce operating temperature and chemical effects. PTFE surfaces, fluorcarbon gaskets and seals, Nitrogen purge to cool and degas oil. ChemStar system comes with Gold Oil, a synthetic lubricant designed to minimize effects of chemical contaminants.   Specifications Model Number 1400N Application Vacuum Manifolds, (Schlenk Lines), High boiling point evaporations (to 195 deg. C), General laboratory. HCl, O3, H2SO4*HBr, HOAC, SOx*Br2, F3CCO2H, H2S*Cl2, CH2O, HNO3*SF6, CF4 Fragments and other gases; Type Belt-Drive Vacuum Pump, chemical resistant Free Air Displacement cfm (l/min.) @60Hz 0.9(25) Ultimate Pressure 1 x10-4(0.00013) Pump RPM 580 Oil Capacity 0.62(0.59) Motor Horsepower (watts) 1/3(250) Adjustable Vac. / Gas Ballast Yes Tubing Needed 7/16(11) ISO Exhaust / Intake Flange NW 16 Overall Dimensions LxWxH in. (cm) 17.8x9x12.6 (45.2x22.9x32) Ship Weight 71(32.3) Shipping Carton Dimensions LxWxH in. (cm) 20.5x13.8x14.5 (52.1x35.1x36.8)

Read more less

Welch ChemStar 5.3 cfm PTFE Oil-Free Deep Vacuum Diaphragm Pump   With the new ChemStar Dry, you get the advantages of two combined technologies: Roots blower and diaphragm vacuum pump. The result is an oil-free, software- driven vacuum system, ready to work on your tough chemical applications – clean, fast, and thorough. ChemStar Dry pumps quickly down (9 m³/h) to the working range for most evaporative operations (2.0 to 0.1 mbar) with an ultimate pressure of 10-2 mbar. The innovative electronically controlled vapour load optimises the pumping speed control. You can even pump corrosive vapours, since all wetted parts of the system are coated with PTFE and other proprietary coatings so they are chemical resistant. The integrated self-cleaning function also contributes to the system’s long lifetime and enables repeatable results. Take advantage of its state-of-the-art technology for optimal operating conditions and results. ChemStar Dry is suitable for all applications where high gas flow and deep vacuum are needed. Advantages: Oil-Free: no oil back-streaming, no oil maintenance/disposal, cleaner work place, cleaner samples, less maintenance Plug and Play: patented software control, auto speed control from atm to 0.07 mbar, self-cleaning function, protection from surges Low vacuum mostly without cold trap: no dry ice or trap apparatus needed, less maintenance, lower cost of ownership, extra bench space Chemical Resistant: pumps corrosive vapour/gases, TFE and proprietary coatings   SKU 2070B-01 Max. pumping speed at 50 Hz in m³/h (l/min) 8.4 (140) Max pumping speed at 60 Hz in m³/h (l/min) 10.1 (168) Ultimate pressure in mbar (Torr) without gas ballast 7x10-2 Wired for 230V, 50/60Hz Intake connection DN 25 KF Exhaust connection DN 25 KF Sound level (dB) 57 Dimensions (W/D/H) in mm 460/220/470 Weight kg (lbs) 23 (50.7)

Read more less