Quick Pressure Vacuum Tube

Wilmad’s Quick Pressure Valve Sample Tubes are specially designed to simplify the work of NMR studies for catalysis, gas-liquid phase reactions, air sensitive samples and elevated temperature studies using low boiling point solvents.
• Easy to operate – one turn to open, one to close
• Larger opening for convenient sample addition
• Lightweight, concentric design for better performance
• Offered with Wilmad Precision Tubes – thin, medium and heavy wall
• Choice of Viton® or Kalrez® O-ring for different applications
• Adapters available for both 1/16” and 1/8” tubing

Quick Pressure Valve (QPV) Tubes (Parts for Basic Tubing Connection Included)

Catalog
No.		MHz
Rating		O.D.LengthWall ThicknessConcentricity/
Camber		Recommended
Max Pressure
528-QPV-75005mm7”0.38mm25 / 13 µm100 psi
528-QPV-85005mm8”0.38mm25 / 13 µm100 psi
524-QPV-73005mm7”0.77mm76 / 51 µm150 psi
524-QPV-83005mm8”0.77mm76 / 51 µm150 psi
522-QPV-73005mm7”1.40mm51 / 51 µm200 psi
522-QPV-83005mm8”1.40mm51 / 51 µm200 psi
507-QPV-73005mm7”0.38mm51 / 25 µm100 psi
507-QPV-83005mm8”0.38mm51 / 25 µm100 psi

Spare Parts and Special O-Rings

Catalog No.Description
QPV-VValve plug assembly with nut and
ferrule
QPV-VOSSet of 10 each Viton® O-Rings -Viton® Sealing O-Ring and Viton®
cap retaining ring, pack
QPV-KOSKalrez® sealing O-Ring and Viton®
cap retaining ring, chemically
resistant and highly inert

Ferrules, Nuts, Tubing and Unions for QPV Sample Tube

Catalog No.Description
QVP-F14Ferrule, 1/16", ETFE, Blue
QVP-N14Nut, 1/16", 1/4-28, Delrin, Red
QVP-T16Tubing, PTFE, 1/16" O.D. X 3’
QVP-U14Union, Delrin, 1/4-28 for 1/8" tubing
QPV-FFerrule, 1/16" x 10-32
QPV-NNut, 1/16" 10-32 x 1/16"
OF-60Vacuum Connector
BP-1821-018Nut 1/4-28 for 1/8" tubing
BP-1822-018Ferrule 1/4-28 for 1/8" tubing
BP-1823-018Tubing 1/8" x 10’