USA Diaphragm vacuum pumps    linear diaphragm    linear piston    rocking piston    micro / mini pumps    laboratory systems    sampling pumps     Europe     Asia Pacific     America          Canada     USA     KNF Neuberger, Inc. - www.knf.com - Two Black Forest Road, Trenton, NJ 08691-1810, USA email: knfusa@knf.com, Tel. +1 (609) 890 8600 KNF Neuberger, Inc., based in the Trenton, NJ area since 1977, designs and manufactures standard and custom-tailored air, gas and liquid diaphragm pumps for the USA, Canada and Mexico markets. The company's broad range of products support a wide variety of applications,either as a vital part of an OEM (original equipment manufacturer) instrument, or as a stand-alone laboratory appliance. KNF is a pioneer in the use of PTFE materials for pumps that handle aggressive gases or liquids, and holds over 300 patents; clearly the world leader in diaphragm pump innovation. Products:   Diaphragm pumps Laboratory pumps, vacuum systems: consisting of a KNF Pump, Stand and Programmable Pump Controller. Air Dimensions Inc. - www.airdimensions.com - 1371 West Newport Center Drive, Suite 101, Deerfield Beach, FL 33442, USA email: info@airdimensions.com, Toll free USA (800) 650-3267, Tel. +1 (954) 428-7333 Air Dimensions Inc. founded in 1971 on the principal of providing our customers with the highest quality pumps in the industry along with superior customer service. ADI's Dia-Vac® vacuum pumps have a proven track record of long life under the most adverse operating conditions. Today you will find our Dia-Vac® pumps within the utility, refinery, chemical processing, pharmaceutical, pulp and paper, mining, medical, automotive, government, environmental and emission monitoring industries to name a few. products:   Diaphragm pumps ADI's complete line of Dia-Vac® diaphragm vacuum pumps offers 100% oil-free, contamination free and leak free sampling. With the Dia-Vac® pumps, no oil, graphite or other potentially contaminating lubricants will come in contact with the gaseous stream. The reliable Dia-Vac® pumps are exceptionally quiet at all pressures and in most applications they can be operated for extended periods with no need for maintenance. Dia-Vac® Pumps: Micro (0-13 LPM) - Mini (0-21 LPM) - Standard (0-150 LPM) - Explosion Proof (0-150 LPM) - Heated Head (0-150 LPM) - High Vacuum (1 torr, 29.9"HG) - Air Driven (0-150 LPM) - DC Operated (0-30 LPM) - Double Diaphragm (0-150 LPM) - Specialty Dynaflo, Inc. - www.dynaflopumps.com - 127A N Mill St, Birdsboro, PA 19508, USA email, Tel. 877-244-4330 products:   oil-less, diaphragm vacuum pumps Dynaflo's oil-less, diaphragm vacuum pumps and compressors are ideal for applications requiring high efficiency and the ability to handle potentially aggressive or sensitive gases. Dynaflo's designs are ideal for applications including: Industrial:   Hazardous gas monitoring systems, Portable vacuum pumps and compressors Biomedical:   Aspirators, Blood Pressure Monitoring, Ventilators, Portable emergency medical devices, Air mattresses, Intra Aortic balloon pumps Air Quality / Health Care:   Air sampling pumps, Portable air quality measurement devices WELCH RIETSCHLE THOMAS - 7301 North Central, Skokie, IL 60077, USA email, Tel. Gardner Denver Welch Vacuum Technology, Inc, formerly Welch Rietschle Thomas, is a wholly-owned subsidiary of Gardner Denver, a leading global manufacturer of compressors, vacuum pumps, and related products. This change became effective July, 2005. Within Gardner Denver. Headquartered in Skokie, Illinois, Welch has provided quality vacuum pumps for laboratory, industrial and educational applications for over a century. Today, Welch is a leading manufacturer of vacuum pump products for chemical and biological laboratories, high vacuum manufacturing, and air conditioning/refrigeration. products:   Diaphragm pumps DryFast Ultra 2-Torr chemical-duty diaphragm vacuum pumps, models 2021 and 2031, are oil-less, 2-stage pumps designed to strip solvents. With respective pumping capacities of 22 and 32 L/min, models 2021 and 2031 are rated for pressure to 29.8 in. Hg and generate flow and vacuum level needed to handle high boiling point solvents (less than 160°C). They utilize corrosion-resistant PTFE on all wetted surfaces and do not require cold traps to operate.     Keywords     www.vacuum-guide.com