800-445-5681 info@wescomfg.com
  • Automatically relieves pressure at 5 PSI.
  • Maximum flow of 220 CFM at 20 PSI.
  • Flame arrestor prevents sparks and flame from igniting drum contents.
  • Fits 2" bung hole in steel and plastic drums.
  • For drums in horizontal (pouring) position. Manual vacuum relief by lifting and rotating valve stem.
  • FM approved.
Unit of Measure


Part Number

N/A 272030


N/A 5 psi

Bung Hole

N/A 2"

Max. Flow at 20 psi

N/A 220 cfm


N/A 1 lb


N/A Wesco is unable to offer specific recommendations for chemical usage. Wesco recommends that if a question arises, the user contact the supplier of chemicals to determine if this product is compatible with those chemicals.


N/A This brass product contains lead. The state of California under Proposition 65 has determined that exposure to lead is known to cause cancer or birth defects or other reproductive harm. Please wash hands after use.