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In recent years, domestic chemical and pharmaceutical companies have sought to reduce safety distances and the amount of land required, and as a result they are upgrading their systems by using underground tanks to store chemical substances, with the substances being transported from these tanks to workshops or areas on the surface. The traditional method for transportation involves using negative pressure suction devices, but this approach suffers from problems such as air resistance and cavitation, which reduce efficiency and cause environmental pollution; in cases where the substance has a low density, it may not even be possible to pump it up. The explosion-proof chemical submersible pumps developed by Tianjin Jiamaa Submersible Pump Co., Ltd., known as the \"Green Label\" series, meet the requirements for use in zero-zone environments and are commonly used in underground tanks. Their positive pressure propulsion mechanism helps to overcome issues such as air resistance and cavitation. The green-label \"chemical submersible pump\" uses positive pressure to deliver nearly a hundred types of chemical fluids; it has obtained an Exds II BT4 Ga explosion-proof certification, overcoming the traditional negative pressure suction process and resolving various technical issues such as air resistance and cavitation. It meets the requirements for use in zero zones and complies with standards such as GB3836.1-2010*. 1. It can transport more than 170 types of lightweight, flammable, and explosive materials. Thanks to the vacuum inside it, its casing features a special explosion-proof design, enabling it to reach an equipment protection level (EPL) of Ga; such equipment can be used in Zone 0 environments (note: this refers not only to the Gb level specified in explosion-proof standards). 2. The submersible pump is integrated with the motor, resulting in a small size and easy mobility, which helps to save space in the tank area and reduce land costs; it also reduces the required fire safety distances, thereby enhancing safety. 3. The material is pushed forward under positive pressure, with no air resistance; the rapid flow of liquid on the inner and outer surfaces of the stator helps to dissipate heat from the motor, allowing it to operate at low temperatures without any heat generation during operation. An internal temperature protector is built in, which shuts down the motor automatically when the current exceeds normal levels in case of faults, ensuring safety and reliability in flammable and explosive environments. 4. Due to its short axis of several hundred millimeters, it requires no maintenance, saves energy and electricity, operates smoothly with almost no wear and tear, has an extremely long service life, results in very low usage costs, is hassle-free, and improves efficiency. The maintenance-free, explosion-proof chemical submersible pump – a green-labeled stainless steel explosion-proof pump – comes with a 3-year warranty and requires no maintenance throughout its lifetime. Manager Yang Hulian can provide more details regarding its specifications. Based on the principles of submersible pumps, research and development technologies have once again been improved. In 2006, the \"explosion-proof chemical submersible pump\" was developed and tested in Tianjin; it enables delivery by positive pressure in zero-zone environments and can transport nearly a hundred types of chemical substances, representing an innovative technology in the fields of chemistry and pharmaceuticals. In response to customer demands, a \"super-high flow rate\" submersible pump was developed, capable of transporting 500 cubic meters of fluid per hour, thus filling a gap in the industry and achieving excellent results. Through years of relentless effort, a total of 8 series have been developed: the standard version for gas stations, the high-head series, the variable-frequency series, the high-flow series, the chemical industry series, the tank truck loading arm series, the adaptive series, and the super-high flow rate series. All of these series have obtained Ga-level explosion-proof certification. Thanks to their ingenious design and advanced technology, they have secured a prominent position in the international petrochemical industry, attracting many experts and professionals from home and abroad who come to visit and seek cooperation. During a field interview conducted by the CCTV program \"Great Nation’s Artisanship\" in 2021, Chief Engineer Qian Zenglin repeatedly emphasized that \"enterprise innovation is like sailing against the current; if one does not move forward, they will fall back. ”Thanks to continuous technological advancements, green-card submersible pumps have managed to establish a strong position in the industry, creating a brand that belongs to us Chinese – let’s cheer for China together.