| 摘要 |
FIELD: measurement technology. SUBSTANCE: invention is related to portion metering of liquid media. Metering tank incorporates measuring vessel, air valve made of two parts connected with adjusting rod mounted for relative movement in height, slack ring membrane, separate air ducts in each part of body of air valve and pusher in lower part of air valve mounted for movement in height relative to body of air valve. EFFECT: enhanced operational reliability. |
