Products
Vacuum Pumps
Belt Driven PumpsDuoSeal 1374DuoSeal 1376 DuoSeal 1376B-46DuoSeal 1380DuoSeal 1397 DuoSeal 1397B-46DuoSeal 1399DuoSeal 1400DuoSeal 1402DuoSeal 1402B-46 DuoSeal 1405DuoSeal 1400W-01DuoSeal 1402W-01DuoSeal 1405W-01ChemStar 1400N-90ChemStar 1402N-90ChemStar 1376NChemStar 1400NChemStar 1402NCapture CRRBelt Kit 1397ABelt Kit 1399ABelt Kit 1400ABelt Kit 1405AMajor Repair Kit 1373K-06Major Repair Kit 1376K-06Major Repair Kit 1376K-10Major Repair Kit 1380K-04Major Repair Kit 1397K-08Major Repair Kit 1399K-04Major Repair Kit 1400K-04Major Repair Kit 1400K-10Major Repair Kit 1402K-06Major Repair Kit 1402K-10Major Repair Kit 1402K-47Minor Repair Kit 1373K-05Minor Repair Kit 1376K-05Minor Repair Kit 1376K-09Minor Repair Kit 1376K-46Minor Repair Kit 1397K-07Minor Repair Kit 1380K-03Minor Repair Kit 1399K-03Minor Repair Kit 1400K-03Minor Repair Kit 1400K-09Minor Repair Kit 1402K-05Minor Repair Kit 1402K-09Minor Repair Kit 1402K-46Seal Kit 1401EDuoSeal Oil
Vacuum Gauges and Controllers
Vacuum Pump Oils
Applications
Mass Spectrometry
Botanicals Processing
HVAC Pumps
Rotary Evaporator
Vacuum Concentrator
Vacuum Manifold
Freeze Dryer
Vacuum Oven
Vacuum Filtration
Vacuum Distillation
Aspiration (Cell Culture)
Glove Box
Gel Dryer
Vacuum Measurement & Control
Pick & Place
Vacuum Workhholding
Degassing / Dessicator
Vacuum Leak Detection: Methods, Tools & Tips
Service
Maintenance Kits
FAQ
About Us
News
Careers
History
Our Values
Downloads
Knowledge Base
Discover & Learn
Install & Setup
Operate & Maintain
Back to the product list

Two-Stage Rotary Vane Pumps CRVPro 8 CHEM

  • Consumes up to 36% less oil than comparable pumps
  • Runs 10°C cooler than comparable pumps. Slows corrosion
  • Holds up to harsh chemical used in proteomics and combinatorial chemistry
  • System includes continuous acid neutralization and oil filtration
  • Internal surface protection
  • Available in 220V 50Hz (3082-80)
  • Max Pumping Speed 5.6 cfm (158 L/min)
  • Ultimate Pressure 2x10-3 mbar (1.5x10-3 Torr)

The Welch CRVpro8 Chem is effective for freeze drying or concentration of samples using a lyophilizer, including harsh chemicals such as TFA, acetonitrile, HBr, and others. These chemicals quickly attack the pump oil of unprotected pumps. CRVpro8 Chem is engineered to better combat the impact of such chemistries

WELCH Vacuum takes pride in offering rotary vane pumps that stand out in terms of performance, reliability, and versatility. Our rotary vane vacuum pumps come with an array of distinct advantages that make them the preferred choice for a wide range of applications:

  • Reliable Performance and Low Maintenance: Our rotary vane pumps are engineered to deliver consistent and reliable vacuum performance. With sturdy construction and smooth operation, they require minimal maintenance, ensuring continuous and trouble-free operation.
  • Comprehensive Range of Accessories: WELCH provides a comprehensive range of accessories, allowing you to customize your rotary vane pump to suit specific applications. These accessories enhance the pump's versatility, making it adaptable to various vacuum processes.
  • Tailored Pump Packages for Selected Applications: We offer specialized pump packages designed for specific applications, streamlining your vacuum processes. These packages come equipped with professional accessories, optimizing the pump's performance for the targeted application.
  • Flexible Motor Options: Our rotary vane pumps are available with one-phase or three-phase motors, allowing you to choose the most suitable power supply for your operational requirements.
  • Option for PFPE Oil Operation: Selected models of our rotary vane pumps are designed for operation with PFPE (perfluoropolyether) oil. PFPE oil is known for its exceptional chemical resistance, making it ideal for applications involving harsh and corrosive substances.

Always use Welch Premium or Welch Gold Oil.

Looking for  reliable Rotary Vane Vacuum Technology for OEMs? Check our knowledge base page for more information.