Often associated with the regulating valve repair work has a lot to do. Regulator of fault is varied, and the emergence of a certain fault may have different reasons. A, the main actuator fault components of different types of regulator and different parts have some key components, these components are also easy to the failed component. 1 a and diaphragm, pneumatic, hydraulic actuators for diaphragm actuator, the diaphragm is the most important components, under the normal operation of the air supply system, if the actuator is not action, it should be thought that if diaphragm rupture, if not installed. When the surface of the metal contact surfaces have sharp corners, burrs will make diaphragm when defects such as broken, and the diaphragm leakage can be absolute. In addition, the diaphragm use time is too long, material aging will also affect to use. B, pneumatic, hydraulic actuator piston is the driving force, so the damage of the piston, wear is absolutely not allowed. C, gas ( Liquid) This is the way of input pressure to the actuator, so often should check whether the firm seal. D, the push rod to check all the push rod bending, deformation, fall off. Push rod connected with the valve stem is strong, the position to adjust, so as to ensure enough stroke and close the valve. E, spring to check spring without fracture. Manufacturing, processing and improper heat treatment can make spring break. Some spring under large load, also may rupture. 2, electric actuators, a motor to check whether can turn, whether easy to overheat, whether there is enough torque and bonding force. B, the servo amplifier to check whether there is output, whether can adjust. C, retarding mechanism, each manufacturer's different retarding mechanism. So to check its transmission parts - Shaft, gear, worm gear, such as whether the damage, if excessive wear. D, torque controller according to the specific structure check its failure reason. Second, the valve of the main failure element a, the body often should check valve body wall corrosion and wear, especially for corrosive medium and high pressure difference, such as cavitation bad process under the condition of valve, must ensure that the compression strength and corrosion resistance, abrasion resistance performance. B, rise to adjust because the valve core and valve core, the effect of cutting fluid, is active intercepting element, therefore the medium erosion, corrosion, particle collision is the most important, under the condition of high pressure difference, cavitation is more easy to damage, so want to check it whether the parts damage, wear, corrosion, whether to repair or replacement. C, seat seat joint surface is the key to ensure the valve closed, its corrosion by grinding the situation is more serious. And as a result of the medium permeability, a fixed seat surface often from corrosion and loose thread, especially want to check this part. D check Industrial Valves stem and Industrial Valves core, valve stem, push rod connected with and without looseness, if produce excessive deformation, cracks and corrosion. E, packing check whether ptfe or other packing aging, lack of oil, metamorphism, whether the packing pressure. F, gasket and o-ring these quick-wear part can't crack damage and aging
There are many issues that affect cast iron valve, which has led to the need of getting specialists trained in certain areas so as to handle all issues that may arise as well as wedge gate valve products that can solve resilient seal gate valve problems.
Shenzhen Mech Valve Trading Co., Ltd.’s goal is to provide the customer with an enjoyable, honest service by satisfying individual customers practical transportation needs with a quality product.
High-quality products are huge boosts when it comes to marketing ideas; allowing potential manufacturers to place themselves in the shoes of a satisfied customer brings them one step closer to understanding the idea of flanged gate valve.
Although there are various available in the market (such as os & y valve fire protection, resilient valve, and os&y gate valve), recent study results have made this cast iron gate valve flow control valve a preferred resilient wedge gate valve choice of the people.