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Vacuum Pump, Rotary Varactor Roots Vacuum Pump,ZJP Series Rotary Varactor Roots Vacuum Pump

Model / Specifications:Vacuum Pump, Rotary Varactor Roots Vacuum Pump,ZJP Series Rotary Varactor Roots Vacuum Pump

Details: 18. ZJP Series Rotary Varactor Roots Vacuum PumpChinacoal07Vacuum Pump, Rotary Varactor Roots Vacuum Pump,ZJP Series Rotary Varactor Roots Vacuum ...

china coal group

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China (Mainland)China (Mainland)

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Zhuhai Shengfeng Motor-Vehicle Investigate Equipment Co., Ltd.

Trademark:Sunfocus

Model NO.:Model 8101

Standard:ISO

Payment Terms:T/T

Details:

Zhuhai Shengfeng Motor-Vehicle Investigate Equipment Co., Ltd.

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China (Mainland)China (Mainland)

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Vacuum Pump

Export Markets:North America, South America, Eastern Europe, Southeast Asia, Africa, Oceania, Mid East, Eastern Asia, Western Europe

Productivity:10000

Details:

Wenzhou Xinfa Nonwoven Equipment Co., Ltd.

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ChinaChina

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Sv Rotary Vacuum Pump

Payment Terms:L/C, T/T

Export Markets:Global

Price Valid Time:From Sep 19, 2011 To Sep 19, 2012

Trade Terms:FOB

Details: Sv Rotary Vacuum Pump, Find Details about Rotary Vacuum Pump,Vacuum Pump from Sv Rotary Vacuum Pump - Taizhou Evp Vacuum Equipment Co., Ltd.

Taizhou Evp Vacuum Equipment Co., Ltd.

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China (Mainland)China (Mainland)

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Liquid Ring Vacuum Pump (2BV SERIES)

Production Capacity:800sets/Year

Payment Terms:L/C, T/T

Export Markets:Global

Model NO.:2BV SERIES

Details: Liquid Ring Vacuum Pump (2BV SERIES), Find Details about Water Ring Vacuum Pump,Vacuum Pump from Liquid Ring Vacuum Pump (2BV SERIES) - Qingdao Zh...

Qingdao Zhongni Machinery Co., Ltd.

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China (Mainland)China (Mainland)

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Water Ring Vacuum Pump (2BV2 061)

Export Markets:Eastern Europe, Southeast Asia, Africa, Oceania, Mid East, Eastern Asia

Exhauster Method:Kinetic Vacuum Pump

Structure:Puming Gas and Vapor

Details: Water Ring Vacuum Pump (2BV2 061), Find Details about Liquid Ring Vacuum Pump,Vacuum Pump for Water from Water Ring Vacuum Pump (2BV2 061) - Hangz...

Hangzhou Feiyao Vacuum Pump

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China (Mainland)China (Mainland)

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Vacuum Pumps (Piston-Type) -3

Model NO.:H series

Standard:ISO 9000

Details:

Qingdao Yihailian IMP. & EXP. Trading Company Ltd.

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China (Mainland)China (Mainland)

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Vacuum Pump

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Shanghai Yulong Vacuum Pump Co.,Ltd.

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China (Mainland)China (Mainland)

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Water Circulating Multi-Purpose Vacuum Pump

Packing:Carton

Power Supply:220V/50Hz

Capacity of Water Storage Tank:15 (L)

Export Markets:North America, South America, Eastern Europe, Southeast Asia, Africa, Oceania, Mid East, Eastern Asia, Western Europe

Details:

Zhengzhou Greatwall Scientific Industrial and Trade Co., Ltd

Business Type:

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China (Mainland)China (Mainland)

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Water Wreath Type Vacuum Pump (SK)

Trademark:yonjou

Model NO.:SK

Details:

Yongjia Yongqiu Pump & Valve Machinery Manufacturing Co., Ltd.

Business Type:

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China (Mainland)China (Mainland)

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Water Cycle Vacuum Pump (AL-S)

Trademark:AoLi

Model NO.:AL-S

Standard:Vacuum pump

Details:

Shanghai Aoli Pump & Valve Mgf Co., Ltd

Business Type:

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China (Mainland)China (Mainland)

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Manual Vacuum Pump

Model NO.:none

Details:

Jinhua Baishida Automobile Articles Co., Ltd.

Business Type:

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China (Mainland)China (Mainland)

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Yuhuan Langxun Brass Industry Co., Ltd.

Flow Rate:Variable Pump

Minimum Order:10 Pieces

Productivity:Vacuum Pump Lx-0.5A

Price Valid Time:From Feb 15,2012 To Dec 31,2013

Details:

Yuhuan Langxun Brass Industry Co., Ltd.

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China (Mainland)China (Mainland)

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Pumps (AP13)

Trademark:new grand

Model NO.:AP13-56007-4025

Origin:China

Shipment Terms:by sea / by air / by express

Details:

New Grand Technology Company Limited

Business Type:

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China(Hong Kong)China(Hong Kong)

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Water Ring Vacuum Pump Compressors (CBF)

Minimum Order:1

Productivity:4000PCS/Year

Trademark:PUCKA

Export Markets:North America, South America, Eastern Europe, Southeast Asia, Africa, Oceania, Mid East, Eastern Asia, Western Europe

Details:

Shandong Precedence Machinery Equipment Co., Ltd

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China (Mainland)China (Mainland)

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Dry Scroll Vacuum Pumps

Unit Price:Negotiable

Export Markets:North America, South America, Eastern Europe, Southeast Asia, Africa, Oceania, Mid East, Eastern Asia, Western Europe

Price Valid Time:From Nov 16,2011 To Sep 14,2012

Shipment Terms:FOB

Details:

Chuanbei Vacuum Technology (Beijing) Co., Ltd.

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China (Mainland)China (Mainland)

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Diaphragm Vacuum Pump

Productivity:30L/Min

Price Valid Time:From Aug 05,2011 To Dec 31,2011

Export Markets:North America, South America, Eastern Europe, Southeast Asia, Africa, Oceania, Mid East, Eastern Asia, Western Europe

HS Code:8414100090

Details:

Tianjin Navigator Lab Instrument Co., Ltd

Business Type:

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China (Mainland)China (Mainland)

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NKVW Vacuum Pump Set

Price Valid Time:From Feb 21,2012 To Feb 28,2014

Minimum Order:1 Sets

Productivity:200

Origin:China

Details:

Chongqing Nakin Electromechanical Co., Ltd.

Business Type:Manufacturers

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China (Mainland)China (Mainland)

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Vacuum Pump

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Jiangxi Hepu Instruments & Equipments Co., Ltd.

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China (Mainland)China (Mainland)

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Vacuum Pump (VP-1A/VP-1S)

Trademark:RTM

Export Markets:North America, South America, Eastern Europe, Southeast Asia, Africa, Oceania, Mid East, Eastern Asia, Western Europe

Model NO.:VP-1A/VP-1S

HS Code:84141000

Details:

Ningbo Refrigeration Tool Manufacturing Co., Ltd.

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China (Mainland)China (Mainland)

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Liquid Ring Vacuum Pump (2BE3)

Minimum Order:1 Pieces

Origin:China

Price Valid Time:From Aug 18,2011 To Aug 18,2012

Exhauster Method:Entrapment Vacuum Pump

Details:

Taizhou Ranri Import & Export Co., Ltd.

Business Type:

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ChinaChina

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Wine Vacuum Pump(WS-4300)

Trademark:lovin

Origin:China

Model NO.:WS-4300

Minimum Order:1000

Details:

Wine Accessory & Corkscrew Co., Ltd.

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China(Hong Kong)China(Hong Kong)

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Liquid Ring Vacuum Pump (SK)

Price Valid Time:From Aug 13,2011 To Jan 01,2012

Minimum Order:1 Sets

Productivity:8000sets/Year

Origin:China

Details:

Zhejiang YonJou Technology Co., Ltd.

Business Type:Manufacturers

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China (Mainland)China (Mainland)

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Vacuum Pump Parts for Pump Maintenance

Export Markets:North America, South America, Eastern Europe, Southeast Asia, Africa, Oceania, Mid East, Eastern Asia, Western Europe

Productivity:1000

HS Code:841410

Details:

Zibo Zhaohan Pump Works Co., Ltd.

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ChinaChina

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China South Investment Group

Business Type:

Free Member

ChinaChina

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VR1000 Central Vapor Recovery Vacuum Pump

Minimum Order:1 Sets

Productivity:60000 Sets/Year

Origin:Wenzhou City, China

Price Valid Time:From Feb 15,2012 To Feb 15,2013

Details:

Zhejiang Galaxy Machinery Manufacture Co., Ltd.

Business Type:Manufacturers

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China (Mainland)China (Mainland)

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2XZ Rotary Vane Vacuum Pump

Origin:Xi′an

Export Markets:North America, South America, Eastern Europe, Southeast Asia, Africa, Oceania, Mid East, Eastern Asia, Western Europe

Productivity:300

Minimum Order:1

Details:

Xi'an HEB Biotechnology Co., Ltd.

Business Type:Manufacturers

Free Member

China (Mainland)China (Mainland)

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Roots Blower

Oil Free:Big Air Flux

Roots Blower:Root Blower

Productivity:2000 Unit/Month

Trademark:BIXUAN

Details:

Shanghai Bixuan Electrical Machinery Equipment Co., Ltd.

Business Type:Manufacturers

Free Member

China (Mainland)China (Mainland)

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MVP432 Vacuum Pump

Exhauster Method:Positive Displacement Pump

Model NO.:MVP Series

Origin:Korea

Structure:Rotary Vaccum Pump

Details:

Vacuum Pump, Micro Vacuum Pump

Model / Specifications:MP-15

Brand Name:Sunshine

Theory:Vacuum Pump

Structure:Single-stage Pump

Usage:Water

Details: Vacuum Pump, Single Stage Vacuum Pump, Micro Vacuum Water Pump, 220V/380V, 50HZ/60HZ Single Stage Clean Water Vacuum Pump.Plastic Magnetic Pump, M...

Zhejiang Sunshine' Pump Manufacturing Co., Ltd

Business Type:Manufacturers

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China (Mainland)China (Mainland)

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Product Summary

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A vacuum pump is a device that removes gas molecules from a sealed volume in order to leave behind a partial vacuum. The vacuum pump was invented in 1650 by Otto von Guericke. Vacuum pumps are combined with chambers and operational procedures into a wide variety of vacuum systems. Sometimes more than one pump will be used (in series or in parallel) in a single application. A partial vacuum, or rough vacuum, can be created using a positive displacement pump that transports a gas load from an inlet port to an outlet (exhaust) port. Because of their mechanical limitations, such pumps can only achieve a low vacuum. To achieve a higher vacuum, other techniques must then be used, typically in series (usually following an initial fast pump down with a positive displacement pump). Some examples might be use of an oil sealed rotary vane pump (the most common positive displacement pump) backing a diffusion pump, or a dry scroll pump backing a turbomolecular pump. There are other combinations depending on the level of vacuum being sought. Achieving high vacuum is difficult because all of the materials exposed to the vacuum must be carefully evaluated for their outgassing and vapor pressure properties. For example, oils, and greases, and rubber, or plastic gaskets used as seals for the vacuum chamber must not boil off when exposed to the vacuum, or the gases they produce would prevent the creation of the desired degree of vacuum. Often, all of the surfaces exposed to the vacuum must be baked at high temperature to drive off adsorbed gases.

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