Customers who do not know much about suction trucks and sewer trucks may be confused when buying. The suction truck is a tank-type vehicle that is equipped with a vacuum pump and then draws the feces into the tank by using the vacuum in the tank, and discharges the tank body with air pressure or gravity. Sewage suction trucks are tank-type vehicles equipped with vacuum pumps, storage tanks, and other equipment that are suitable for use in sewers, water suction pits, sewers, and other filth. There are several types of suction trucks, such as suction-draining vehicles, self-discharging suction vehicles, and agricultural suction vehicles . Its main structure is composed of the following equipment: vacuum pumps, tanks, four-way valves, water and gas separators, booms, return tanks, power take-offs, oil and gas separators, locking devices, and more. Sewage suction trucks and suction trucks have the same common features: The suction trucks and the sewage suction trucks are vehicles used by sanitation for cleaning. The most important key components are also used vacuum pumps. The vehicles are used by colleagues. Vacuum pump to produce pressure difference to carry out the work of suction and suction. And all of them are able to use the cleanliness work of the sewer cleaning sludge and excrement. Then the difference is that the two vehicles are very different in structure, which directly leads to great differences in their prices and uses. The structure of the suction truck is relatively simple. The elliptical tank used is sealed by the rear head and discharged by the pressure generated by the vacuum pump. The sewer truck uses a circular tank and the rear is open, and then uses a hydraulic cylinder to lift the tank to discharge the sewage. The difference between the suction truck and the sewage suction truck in terms of the structure mentioned above is different. The difference in the use of the two vehicles is as follows: 1, because it is affected by the shape and structure of different tanks, the suction suction and vacuum degree of suction trucks are larger than that of suction trucks. 2. The pressure of the vacuum pump used by suction trucks is worse than that of the sewage. In the restriction of the location of the sewage outlets, it is not possible to discharge larger stones, and it is not possible to use large-scale dredging. jobs. 3. The sewage suction truck adopts a hydraulic open top drainage structure, and the pollutant discharge effect and the efficiency of the sewage discharge are all relatively good. 4, for the domestic differences in the region is also has a different use of habits, the user in the south more suction trucks, while the northern users are more used in the suction truck. Then, from the aspect of performance, the sewage suction truck is higher than the suction truck, and the sewage suction truck is more convenient to use, and the chance of failure is lower. However, due to the differences in the use of originals and structures, the cost of the sewage suction trucks is also higher than that of the West Windmills. Therefore, it is possible to purchase according to their own use. (Text / Sun Ni)
Slab gate valves are usually used for the oil & gas pipe-lines.
Slab Gate Valve are manufactured with a full bore, slab gate, rising stem OS&Y and floating seats. Slab gate is a simple solid gate design, featuring metal-to-metal seal between gate and seats, to apply for the most severe service condition, including corrosive and abrasive fluid environments. A floating seat is designed to match the slab gate. A belleville spring and O-ring between each seat and body ensure a tight seal against the slab gate. The floating slab gate uses the natural force of line pressure to obtain a dynamically tight downstream seal in high-pressure differential applications. Low-pressure sealing is accomplished with an o-ring that energizes the seat and minimizes corrosion and debris build up. Common trims are available.
Double block and bleed capability and automatic relief of excess body pressure are standard feature of this seat design.
The smooth, continuous bore minimizes turbulence within the valve and when in the open position it produces a pressure drop equivalent to a portion of pipe of same length and diameter. The seat faces are outside the flow stream and therefore protected from the erosive action of the flow. Pigs and scrapers can be run through the valve without damage. Slab Gate Valve Slab Gate Valve, Through Conduit Gate Valve, Cast Steel Gate Valve Supplier, Flat Gate Valve, Flanged Gate Valve Manufacturer Wenzhou Kolink Valve Co., Ltd. , https://www.kolinkvalves.com
Through Conduit Slab Gate Valve design minimizes and eases the maintenance allowing for the service operations to be done without the removal of the valve from the line.