適用工況：用于輸送泵入口壓力高于10MPa、不含顆粒的介質。

結構特點：單級或多級，多級套筒式結構。防爆或非防爆都可。內循環(huán)方式，無外接管路。

排氣方式：自動排氣。只要把出入口閥門打開即可實現。

Applicable working conditions: used to transport pump inlet pressure higher than 10 MPa, non-particle medium.

Structural features: single-stage or multi-stage, multi-stage sleeve structure. explosion-proof or non-explosion-proof can be.

Exhaust mode: automatic exhaust. just open the inlet and outlet valve.