Audo Look6.0 downloadMake an example, hypothesis carries the water jar of the lid, water is entered from crock bottom, pour out of from crock mouth, crock lid is shut with respect to what be equivalent to a powerful person. If use a hand to mention up,the crock is built, be equivalent to the working principle of shut-off valve. If use a hand to on the side removed crock of lid, be equivalent to the working principle of brake a powerful person.
Main standard:
1, design a standard: GB/T 12235
2, join standard:
1) carries BW to solder: Press GB/T 12224
2) flange carries RF: Press JB79; GB/T 9113; HG20592
3, valve examines with the experiment:
GB/T 13927;JB/T 9092
Use the following structure:
Bright lever raises posture
Bolt joins a powerful person is built; Internal pressure tightens lid of type a powerful person oneself
On integral type sealed
Introduce in detail:
Of shut-off valve open shut it is valve of cylindroid a powerful person, sealing surface shows plane or cone, the central line of fluid of edge of valve of a powerful person makes linear motion. The athletic form of lever of a powerful person, have litre fall lever type (lever of a powerful person rises fall, handwheel does not rise fall) , also have litre fall rotate lever type (handwheel and lever of a powerful person rotate together litre fall, nut is set on body of a powerful person) . Shut-off valve is applied to only a standard-sized sheet and close completely, when having something made to order, allow to adjust with reduce expenditure.
When shut-off valve open, the open height of valve of a powerful person, the 25% ～ that are nominal diameter 30% when, discharge already was achieved the biggest, state valve already amounted to position of a standard-sized sheet. So the position of a standard-sized sheet of shut-off valve, answer to be decided by the journey of valve of a powerful person.
-- news source: Always fine county limited company of Zheng Xu valve