Q646F pneumatic spool valves
The main features1
the valve stem adopts A182F (1 cr13) integral forging processing and modulation, hardness of HB220 ~ 250.Stem through key spline or the parties connected to the handle, strong commonality, easy tear open outfit.Stem with blow-out proof design.2, valve filling knitting, flexible graphite sealing ring or ptfe seals, lubrication situation of the stem in a reliable seal.3, according to the needs, the ball valve can be designed as antistatic structure, in the sphere and valve stem, valve stem and valve body between the conductive spring, avoid electrostatic spark to ignite flammable material, ensure the security of the system.4, sealing deputy various forms.According to the different condition can choose soft seal and hard seal, such as fire seat structure;6 the following for floating ball form, dn200 for fixed ball form below.5, pneumatic four-way valve seat in the auxiliary seal structure can be set up, in the seat and the valve stem parts add fat injection valve, an emergency can be temporarily seal, and can according to need to lengthen the valve stem with suitable buried laying venues.
