In order to test the quality of construction products, to prevent run, run, drip, leakage caused by a variety of accidents, before construction, we will pressure test the valve, especially the high-pressure valve, have higher requirements. In this case, then the valve pressure test when there are any standard principles? Here is a small collection of some of the principles of pressure test valve standard, as follows: (1) Under normal circumstances, the valve does not make strength test, but the...
Magnetic flip level gauge fake liquid level analysis of the reasons: Magnetic flap level gauge can be directly used to observe a variety of containers of liquid level height. It is suitable for oil, chemical industry level instructions, the liquid level gauge structure is simple, intuitive observation, clear, non-blocking, no leakage, easy installation, easy maintenance. The upper and lower flanges of the glass plate are connected with the container to form a communication device. The actual...
Automatic pressure control liquid-controlled slow-closing butterfly valve is currently used for turbine inlet of the key control equipment, has a good seal, adjust the performance and create a unique three-eccentric structure of the basic structure of the hydraulic butterfly valve, auto insurance Pressure liquid control slow closing butterfly valve by the field application, the operating system is running well, in addition to the butterfly valve has the advantages of three eccentric structure...
Gas emergency shut-off valve of the main applications are what Gas emergency shut-off valve is installed in the gas tank / pipe outlet emergency can quickly cut off the valve, the use of solenoid valve to control the closure of the valve, is one of the more ideal safety valve. Gas emergency shut-off valve is normally open type pulse triggered solenoid valve. Gas emergency shut-off valve has the advantages of simple structure, responsiveness, reliable operation, self-locking accident and manual...
On the evening of October 19, the 44th World Skill Contest closed in Abu Dhabi, UAE, came with good news. The Chinese delegation won 15 gold medals, 7 silver medals and 8 bronze medals. The delegation won the best result since entering the competition. Among them, Guangdong won 5 gold medals, 4 silver medals and 6 bronze medals. The number of gold medals increased by 3 pieces over the previous session, accounting for 1/3 of the national total; the total number of medals accounted for half of...
Valve body wall in high pressure and corrosive media occasions, the valve body wall, diaphragm valve diaphragm often subject to media impact and corrosion, we must focus on inspection of pressure corrosion resistance; spool valve spool is the movable part of the valve One of the more serious erosion by the media, the valve should be carefully checked when the various parts of the valve is corrosive, wear and tear, especially in the case of high pressure differential valve core wear due to...
Pump common suction pump one, the pump is not suction Second, the motor speed is not enough Three, the pump vibration or noise Strong pump common faults First, the pump does not absorb the oil causes: 1, the suction pipe blocked or leak 2, the inhalation height exceeds Allow suction vacuum height 3, the motor reverses 4, the medium viscosity is too large 2, the flow rate down reason: 1, suction pipe blockage or leakage 2, screw and pump sleeve wear 3, safety valve spring is too loose or valve...
v-type ball valve Features: The v-type ball valve is an advanced control valve with a right-angle swivel structure.V-type ball valve does not require long-term repair, long service life, to provide you with a truly high efficiency to control the process conditions of a valve. V-type ball valve with excellent adjustment characteristics, v-type pneumatic valve with approximately equal percentage flow characteristics and up to 300: 1 adjustable ratio, so V-ball valve in a wide range of sub-range...
At present, the valve has become one of the fastest growing industries in China's equipment manufacturing industry. The types of valves are constantly increasing, and the requirements of various industries for valve quality and technology are also getting higher and higher. However, like most of the machinery industry, China's valve industry is also facing the bottleneck of the late start, the bottom of the poor development. Enterprises in the procurement, most of them are more inclined to...
(A), the valve used on the water supply pipeline, the general principle of choice according to the following: 1, the diameter is not more than 50mm, it is advisable to use a stop valve, pipe diameter greater than 50mm gate valve, butterfly valve. 2, need to adjust the flow, water pressure should be used when the control valve, globe valve. 3, requiring a small flow resistance parts (such as the pump suction pipe), should adopt the gate valve. 4, the flow should be two-way flow of pipe sections...
Anti-corrosion magnetic flap level gauge for low temperature to high temperature, vacuum to high pressure and other environments, petroleum, chemical and other industrial sectors ideal level measurement products. Configuration, the lower limit switch output, remote alarm can be achieved, limit control, configuration transmitter, remote level can achieve the instructions, detection and control. Anti-corrosion magnetic flap level gauge Features: 1, the high temperature, high pressure, high...
Four-way valve flow caused by the lack of possible causes: Air conditioner system leaks, resulting in the system refrigerant circulation is not enough. 2. When the weather is cold, the evaporator evaporation basin is not enough. 3. Four-way valve and the system to match the poor, that the selected four-way valve in the middle of large flow capacity and system capacity. 4. General system design for a certain period of time after the compressor down to four-way valve before commuting, when high...
Description of content The utility model is a novel valve actuator connecting device belonging to the technical field of valve actuator connecting device. Background of the Invention Actuators use liquid, gas, electricity or other energy sources and convert them into drive action through motors, cylinders or other devices. The basic actuator is used to drive the valve to the fully open or fully closed position. Actuating and control valve actuators enable precise positioning of the valve to any...
J45Fs DC Fluorine Plastic Globe Valves, designed to control highly corrosive media with a variety of fluoroplastics on the surface of the body cavity for different operating temperatures and fluid lines. High strength, good corrosion resistance. Straight through lined with fluorine valve manufacturing and standards Design and manufacture: GB12235 Structure length: GB12221 (1 series) Flange connection size: GB4216 JB78 Straight-through fluorine valve material: Body, bonnet: HT200, ZG230-450,...
Drainage pumps used in buildings include submersible sewage pumps, submersible drainage pumps, vertical sewage pumps and horizontal sewage pumps. As the general site of the building is smaller, the displacement is not large, the drainage pump can give priority to the submersible sewage pump and submerged drainage pump, which submerged sewage pump is generally used in important places; vertical sewage pump and horizontal sewage pump required to set the interval The basis of the earthquake,...
Any choice of valve is the need to pay attention to detail, with the gradual expansion of the scope of application of the control valve, this type of valve can play the role of performance and has gradually been known. Then the type of valve in the choice of what can not be ignored details? On the selection of electronic control valve first thing to consider is how wear resistance. If the media contains more abrasive or abrasive particles, then it will make it worn, in which case you need to...
A single variety of complex chemical consumer equipment, tower is one of the most common type of processing and installation. Tower is the place of consumption processing is the storage of materials into and out of the container, so the level of material in the tower to stop testing. Depending on the consumption process, towers up to a few tens of meters tall with a very large gap are within one meter and the tower exterior usually passes through a number of different spaces in the tray and...
1, Love wash method: welding slag, rust, slag and other piping in the throttle, guide parts, under the valve cover to balance the hole caused by blockage or stuck so that the valve surface, the guide surface of the resulting injury and scratches . In this case, you must uninstall the cleaning, remove the slag material, such as the sealing surface is also damaged should be ground; at the same time the bottom plug open to flush away from the balance hole into the valve cap slag material, and the...
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