Cast steel gate Industrial Valves with the valve stem, along a straight line called lifting lever gate ( Also called rising stem gate valves) 。 Usually in lifting lever on the trapezoidal thread, through the valve at the top of the nut and guide groove on the valve body, the rotation movement into linear motion, which is the operating torque thrust into operation. Convex part of the valve castings and casting body should not differ too much, it is best to take the same height, the same distance on the surface of the close several convex sets, best into convex part of the whole. The carbon content in cast steel valve directly determines the strength and plasticity, cast steel valve design and cost for cast steel valve provides a large market. Carbon content of steel directly determines the strength of steel and plastic. With the increase of carbon cast steel hardness is higher and higher, the shape is also more and more strong. Carbon steel castings in valve production heat treatment is in order to eliminate the residual stress of the casting to produce, refine the grain, improve mechanical properties and machinability. In carbon steel casting foundry generally selected after annealing, normalizing, normalizing + tempering process. Ram crack ( Or at the bottom of the deformation) Mainly appear in Z944 / Z964 parallel plate structure in the products, at the bottom of the ram directly impacts such as gate valves at the bottom of the valve body, much due to improper denso debugging of electric valve, close the trip without limits or limit failure easily happened. Cast steel valve since the sealing structure and the top of automatic gate seal principle are two different things, since the sealing structure refers to the connection position of central gate valves and valve cover structure for the sealing structure, different from the low pressure medium pressure force in central gate Industrial Valves sealing flange connection. Cast steel valve is introduced: 1, the cast steel valves in the process of transportation and storage not to dismantle the valve protection cover or packaging, to prevent the valve connecting the damage, and to avoid impurities such as dirt into the body cavity. 2, cast steel valve should be stored in dry room and is generally not allowed in open air, in order to prevent the valve damage and corrosion. 3, cast steel valve, at the time of shipment, the open-close part is usually in an open position. 4, cast steel valve factory have been conducted according to the standards and order contracts and debugging, the user use after dismantle packaging. Cast steel valve castings lumen should try to be without or with less casting cores, when using core, should be convenient for the support, fixed and exhaust sanding, should have enough technology hole when necessary. For casting internal and external profile and strengthening rib structure, should be in the draw direction Angle is equipped with a certain structure. Common stem and easy accumulation of welding slag, stones, sediment and other sundry, unfavorable to seal and flow, and part of the manufacturer of the elastic base seat of the sealing Industrial Valves adopts flat type cut-through design, whole basin is not easy to pile up sundry, ensure reliable sealing, can make clear fluid.
Shenzhen Mech Valve Trading Co., Ltd. is considered as one of the leading supplier of water gate valve products in China.
If you are ready to stop the problem of os gate valve and go back to normal, contact us at Mech Valve. Shenzhen Mech Valve Trading Co., Ltd. is ready to help you out.
It's not enough to have an idea as flanged gate valve in a gigantic market. The key to what gets concerned is how you connect this hungry market to the idea that satisfies it.
Shenzhen Mech Valve Trading Co., Ltd. always think about our customer first. To determine what the consumers would want out of their relationship on social, and work from there.