Design Features
 Tandem, multiple-spring, balance structure
 Primary seal on side of the medium and secondary sealing on side of the atmosphere are gas film seal, non-contact operation, low power consumption, long service life.
 Primary seal face inner diameter slotted sealing structure, which has excellent ability of controlling solid particles, secondary sealing outside diameter slotted end-seal structure.
 Between primary and secondary sealing access to clean nitrogen or instrument winds as jam gas, guarantees that process medium from pollution.
 Auxiliary system structure is simple.
 Realize sealed media zero leakage, zero emission, free from pollution to the environment.
 Container type structure, and the overall installation accurate, convenient, knocked-down work is convenient.
Operation Parameters
 Pressure from 0 MPa to2.5 MPa
 Line-speed: not more than 25 m/s
 Temperature from-40℃to 327℃
System Configuration
 API 682 Plan 74 applies to allow a few jam gases into the media side.
Application Condition
 Butadiene device, food processing device, aromatic device, methanol device, acrylonitrile device, chloride methane devices, etc.
 All kinds of normal centrifugal pump, high-speed pump, submerged pump, etc.
 Containing solid particles media, etc.