features of the united states standard flange ball valve -凯发彩票

features of the united states standard flange ball valve structure:
1. manual floating ball valve switch instructions
the ball, stem, and handle are the moving parts of the valve. it is an assembly unit. the stem head adopts the flat square structure.
the valve can be easily discerned from the position of the handle to be in or off position.
when the handle or stem flat side is parallel to the line axis, the valve is in the open position;
when the handle or stem flat side is perpendicular to the line axis, the valve is in a closed position.



2, american standard flange ball valve to prevent wrong operation valve, ball valve mounted in the design of the company with a lock hole positioning can meet the technological requirements of users, can lock the valve in the valve fully open or close position.



3. the beauty standard flange ball valve stem is out of structure
when the medium is through the valve the pressure of the body cavity may be rolled out.
to prevent this from happening, set up a convex structure at the bottom of the stem.
so even if a fire, packing, or other causes of thrust bearing was burning packing damage, such as the body within the medium pressure will make the valve stem and convex body tight contact, prevent medium large leak from the damaged packing area.



4. beauty standard flange ball valve antistatic device
when operating the valve, friction between the ball and the non-metallic seat of polytetrafluoroethylene produces electrostatic charge and accumulates in the sphere.
in order to prevent the generation of electrostatic spark, the valve shall be equipped with antistatic device and the generated electrostatic export (please contact the company's salesman, 0577-8588 8060/61/61/62/63 8588 8220/21).



5. beauty standard flange ball valve fireproof structure
rui tong valve factory production of american standard flange ball valve seat adopts unique structure, when a fire, nonmetal sealing surface material burned, metal ring using spring of elastic drive with sphere seating, so as to stop the fire spreading and medium outflows.
(fireproof structural design conforms to api 607, jb/t6899 and bs755)



6. the flange of the united states standard flange ball valve has no leakage structure
body is cushion for leaning on and left the connection parts of the body sealing, to prevent caused by factors such as fire, high temperature or vibration seal leak, the design for the body and the left body, metal to metal contact form check flange, ensure no leakage.



7. automatic pressure relief structure of the us standard flange ball valve
when medium entrapped in the valve lumen due to factors such as pipeline system pressure or medium temperature change, resulting in lumen abnormal pressure rises, the midplane medium can rely on itself thrust to push the seat and automatic relief, so as to ensure the safety of the valve.