The Xin'anjiang series water jet vacuum pumps and atmospheric jet pumps are patented products independently developed by our company, manufactured through one-time molding with reinforced polypropylene plastic. The venturi tubes of the steam jet pumps are lined with graphite. These pumps can extract corrosive gases at temperatures up to 150°C. When used in series with steam jet pumps, a higher vacuum level can be achieved. They feature strong corrosion resistance, high mechanical strength, smooth surfaces, simple structure, compact size, and few vulnerable parts. Among similar products currently available, they stand out for their long service life, large exhaust volume, and high vacuum level, making them ideal replacements for SZ-type water ring pumps and W-type reciprocating vacuum pumps. The Xin'anjiang series water jet vacuum pumps and atmospheric jet pumps are patented products independently developed by our company, manufactured through one-time molding with reinforced polypropylene plastic. The venturi tubes of the steam jet pumps are lined with graphite. These pumps can extract corrosive gases at temperatures up to 150°C. When used in series with steam jet pumps, a higher vacuum level can be achieved. The water tank adopts internationally advanced technology—PPH winding process, with the entire tank body formed in one piece without welds, preventing leakage. It boasts strong corrosion resistance, high mechanical strength, smooth surfaces, simple structure, compact size, and few vulnerable parts. Among similar products currently available, it stands out for its long service life, large exhaust volume, and high vacuum level, making it an ideal replacement for SZ-type water ring pumps and W-type reciprocating vacuum pumps. Model significance: JW — PPH－80－500 — A JW—— J (unit code) W (horizontal) L (vertical) PPH—— Material code (PPH imported polypropylene) 80—— Inner diameter of the intake port (80mm) 500—— Maximum pumping capacity (500m3/h) A—— Improved type