Install valve, want to remember these points well

2 meters of) , such, shut valve to save interest quite. Handwheel of be born valve wants face to go up, do not tilt, lest hold take one's leave,twist. Machine relying on a wall relies on the valve of equipment, also want put apart to operate personnel to stand leeway. Want to avoid to respect day of operation, especially soda acid, poisonous medium, otherwise very insecure. Gate is not installed (namely handwheel is down) , can make medium leaves existence a powerful person for a long time to build a space otherwise, corrode lever of a powerful person easily, and ask what to abstain from for certain technology. Filling pole inconvenience changes in the meantime. A powerful person of bright lever brake, do not install in underground, corrode lever of appearing a powerful person as a result of moisture otherwise. Litre fall type check valve, should make sure segment or section of its a powerful person is vertical when installation, so that rise,fall agile. Come back the check valve that open type, standard of its bearing pin should assure when installation, so that come back,open agile. Pressure-relief valve wants erect installation to be on horizontal conduit, each direction do not tilt. (2) construction of construction work installation must take care, avoid by all means bumps the valve that brittleness material makes. Before installation, answer to make valve one inspection, check norms model, appraisal has nondestructive bad, especially to lever of a powerful person. Turn a few times even, look askew, because carry a process in, hit pole of crooked a powerful person the most easily. Even inside purge valve sundry. When the condole since valve, cord is not fastened on handwheel or lever of a powerful person, lest damage these components, should fasten on flange. To pipeline of valve place connective, must sweep clean. Usable compress air to blow deoxygenate to convert scrap, sludge broken bits of arenaceous, solder and other and sundry. These are sundry, not only the sealing surface of easy abrade valve, among them big grain is sundry () of the broken bits that be like solder, still can block small valve up dead, make its invalidation. When installing snail mouth valve, should will sealed filling (line hemp adds aluminous oil or get together raw material of 4 fluorine ethylene takes) , the bag is on pipe whorl, do not do valve in, lest memory of a powerful person is accumulated, influence medium is current. When installing flange valve, should notice symmetrical and even ground close bolt. Valve flange and pipe flange must parallel, clearance is reasonable, lest valve has generated great pressure, even craze. Not tall to brittleness material and intensity valve, want to notice especially. Need the valve that solders with pipe, should first spot welding, will shut an a standard-sized sheet again, next solder is dead. (3) safeguard has some of valve to still must have exterior protection, this is protected namely protect blandly cold. Add even sometimes inside heat-insulation layer mix hot vapour cop. What kind of valve should heat preservation or protect cold, want to ask according to production and be decided. Principle ground says, the medium inside every a powerful person drops temperature overmuch, meeting influence produces bad valve of efficiency or aspic, need heat preservation, mix even hot; Every valve is bare, adverse to production or when causing the undesirable appearance such as frost, protect with respect to need cold. Insulation material has asbestine, cotton of mineral wool, glass, pearlite, diatomite, vermiculite; Protect cold material to have cork, pearlite, bubble, plastic etc. (4) bypass and appearance some valve, besides necessary protective establishment, have bypass and appearance even. Installed bypass. Facilitating drain valve is overhauled. Other valve, also have those who install bypass. Whether to install bypass, want to treat valve condition, importance is decided with the requirement on production. (5) filling changes inventory valve, some filling are bad already to make, some nots agree with with use medium, this changes filling with respect to need. The valve factory that make cannot consider to use an unit 1000 10 thousand kinds different medium, root of backfill general all-around always is inside filling case, but when using, must let filling suit at medium photograph. Changing when filling, want circuit circuit ground to be pressed. Every juncture with 45 degrees advisable, circle and circle receive 180 degrees. Filling height should consider gland to continue the leeway of impaction, uptodate should let gland bottom control filling chamber again proper deepness, this deepness can be the 10-20% of filling room total depth commonly. To the valve with high demand, juncture angle is 30 degrees. Juncture is stagger between circle and circle 120 degrees. Except afore-mentioned filling, still but according to particular case, introduce link of balata O form (natural balata is able to bear or endure 60 Celsius are the following weak base, fourth fine balata is able to bear or endure 80 Celsius are the following oily brilliant, fluorine balata is able to bear or endure a variety of 150 Celsius are the following corroding medium) fold type 3 times to get together 4 fluorine ethylene is encircled (be able to bear or endure 200 Celsius are the following strong corrode medium) nylon bowl shape is encircled (be able to bear or endure 120 Celsius are ammonia, alkaline) wait for figuration filling. In common asbestine dish outside the root, the bag gets together one layer 4 fluorine ethylene lays makings ribbon, can improve sealed result, the electrochemistry that reduces staff of a powerful person is corroded. When impaction condiment, should turn at the same time lever of a powerful person, in order to maintain all around even, prevent too dead, screw gland wants to exert oneself to do sth. even, cannot tilt. CNC Milling