Design Features
 Dual-face, multiple-spring, balance type, structure of pressure on sealing inner side, the size of axial and radial are small.
 Static ring structure and the static type design, can adapt to high pressure, high speed conditions.
 Primary seal on side of the medium and secondary on side of the atmosphere are gas film sealing, non-contact operation, low power consumption, long service life.
 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 are convenient.
Operation Parameters
 Pressure from 0 MPa to 4.0 MPa
 Line-speed: not more than 60 m/s
 Temperature from-40℃to 327℃
System Configuration
 API 682 Plan 74 apply to allow a few jam gases into the media side.
Application Condition
 Refinery catalytic unit, coking plant, gas fractionation device, MTBE device, ethylene cracking devices, etc.
 All kinds of high speed pump, etc.
 Propylene, ethylene, liquefied gas, etc.