Plant high temperature and high pressure by the pneumatic brake valve pneumatic valve assembly basic requirements

. All the assembly of parts and components ( Including purchased parts and outsourcing parts) Must have a inspection certificate and sign.
. Main dimension and roughness of parts should be rechecked, and optimize the combination.
. The assembly of parts surface and the friction surface can not have influence performance of scratch.
. All the assembly of parts and components ( Including purchased parts and outsourcing parts) Can not have burr, rust, and the processing surface, bruised visual inspection qualified after spectrum inspection, before assembling.
. After assembly fasteners should be tightened, and may not be loose. Fastener assembly, heat-resistant thread grease should be applied for screw.
. In the process of manual pneumatic valve, pneumatic valve rod unsmooth not a phenomenon that feel is smooth.
. After the electric pneumatic valve fittings, travel switch of electric device should be coordinated to be synchronous with the pneumatic valve is fully open and closed position.
as pneumatic valve closing is given priority to with torque protection device. Induction electric change manually, the handwheel rotates hand even.
. After assembly, pneumatic valve closed when the brake, the disc center should be higher than pneumatic seat center, its value single ram for pneumatic valve seat sealing surface width /; Double ram for/of the width of the pneumatic valve seat sealing surface.