Multi Spring Mechanical Seals

Clear opening 450x450mm for city construction composite manhole cover have widely application for gas station, road builders, fuel station construction companies, water authorities, city utilities, telecommunications and design and civil engineering companies requiring a light weight and operational access solutions. In China ,  PetroChina , SINOPEC and other gas stations are our loyal clients for many years. In abroad,  UK, USA, Australia , Kenya , Uganda, Singapore, Malaysia and other countries are using our covers always.

Clear opening 900mm (35")with inspection hole FRP manhole cover are specially for Petrol Stations. The covers are suitable for installation within Heavy Goods Vehicle trafficked areas such as the tanker delivery area. In China ,  PetroChina,SINOPEC and other fueling station are our loyal clients for many years. In abroad,  UK, USA, Australia , Kenya , Uganda, Singapore, Malaysia and other countries are using our frp manhole cover always.

Balance Breakaways, also known as safety cut-off valve, means that in case of emergency, the valve will close quickly to avoid accidents. According to different use positions, Balance Breakaways can be divided into Emergency Shut-off Vale & Vapor Recovery Breakaway.

Fuel Tank Sump is a kind of protective container, which is installed at the mouth of buried oil storage tank, providing a clean space for equipment, valves and joints, ensuring its internal equipment is not corroded by groundwater, and ensuring the normal operation of the oil tank and its auxiliary equipment. At the same time, ensure the fuel will not leak into the soil during equipment failure and maintenance, and protect the soil of the oil station from pollution. When the equipment, valves and joints in the tank mouth need to be inspected, repaired and maintained, the use space of Tank Sump allows maintenance personnel to enter its interior, and can scrub and ventilate the tank mouth. Regular inspection of liquid level meter, submersible pump, oil unloading overflow valve and leak detector on Pipework System, liquid level calibration at oil measuring hole, and maintenance of joints and valves of oil transportation, oil unloading, breathing pipelines and various oil vapor recovery pipelines can be easily completed in this space.

Oil vapor recovery system refers to the process of loading and unloading fuel or refueling vehicles, which collects volatile oil vapor, Through the methods of assimilation, adsorption or condensation etc, to reduces the pollution of oil vapor , or makes oil vapor change from gaseous state to liquid state and then to gasoline again, so as to achieve the purpose of recycling. When the dispenser is operated to refuel, volatile oil vapor will overflow from the automobile fuel tank, and this kind of vapor will also be produced by the fuel flow.Vacuum Fuel Pump will work at this time to extract the vapor and inject it into the pipeline which connected with the oil tank for further treatment.

Dispenser Sump is a kind of protective container, which is installed under the dispenser to provide a clean space for the valves and joints at the bottom of the dispenser, to ensure that its internal equipment is not corroded by groundwater, and to ensure the normal operation of the dispenser and its auxiliary equipment. When the internal equipment, valves and joints of the dispenser need to be inspected, repaired and maintained, the use space of the Dispenser Sump allows maintenance personnel to easily operate, and can scrub and ventilate the bottom of the dispenser to avoid excessive oil vapor concentration. When the gauges, filters, emergency cut-off valve, triangular flange and high-pressure bellows above the space are regularly inspected and repaired, the fuel will not leak into the soil, thus protecting the soil of the oil station from pollution. Dispenser Sump is made of high-strength engineering plastics /SMC composite materials, and its excellent material properties make the products available in all oil stations around the world.

MC company focuses on designing and developing all kinds of refueling Nozzles:Vapor Recovery Nozzle，Automatic Nozzle，Automatic AdBlue Nozzle，Nozzle With Mete，Manual Nozzle,etc.Meet various needs of customers. Pressure Casting technology improves the compactness of Nozzle body material, makes the appearance more beautiful and the inner wall smoother, which effectively reduces the resistance of liquid flowing in the nozzle body. 100% Factory inspection & test to ensure products quality. The main material of the sealing device used in the product is Silicone-Fluorine compound rubber, which has excellent low-temperature elasticity, high-temperature tensile retention rate and low swelling rate of hydrocarbon mixture in liquid immersion.

Aluminum alloy manhole cover for fuel tank truck d460/560/580