The outer body is a stainless steel metal compensator lined with PTFE. It can withstand various concentrations of acids, alkalis, and salts, and also has the advantages of stainless steel compensator pressure, not afraid of collisions, and so on. The market can provide: DN25-1600mm; Continuous fatigue life: 5000 times; Pressure rating: PN0.6, 1.0, 1.6MPa; Operating temperature: ≤ 180 ℃.