防腐塑料外殼 Anticorrosive plastic casing 全PTFE隔膜 PTFE diaphragm 按IP55防護等級設計 Protection class: IP55 多種材質(zhì)的泵頭可選:PP,PVC,PTFE,SS316 Pump head: PP, PVC, FTFE, SS316 雙球單向閥 Suction and delivery valves: with two balls each one 頻率調(diào)節(jié):10-99% Manual control the stroke frequency from 10-99%, LED display the normal frequency (at running or stop). 手動調(diào)節(jié)、面板顯示。 Stand power supply: 220vac, 50Hz single phase