● Pressure：0~3.0 MPa

● Temperature：-40~260℃

● Speed：≤25m/s

√ Applied in inflammable, explosive, toxic, granular impurities or high viscosity medium

√ Prevent medium directly leaking into the atmospheric

√ Compact designs, resistance for pump cavity evacuation

● Multiple springs, rotary

● Dent drive

√ Refining & petrochemical

√ Coal chemical

√ Chemical

√ General industry

● Process side:API682 PLAN 01, 11, 21, 32,

● Between seals:API682 PLAN 53A, 53B, 53C, 54