Double Block & Bleed (DBB) Ball Valve

Let's start with the parameters that everyone cares about the most-we don't play tricks, just list them clearly: the nominal diameter ranges from DN15 to DN200, covering both small-diameter pipelines and medium-flow scenarios; the nominal pressure can withstand 1.6-6.4MPa, and it can stably handle common medium and high-pressure working conditions such as chemical industry and water treatment; the applicable temperature is more flexible, ranging from -40℃ to 180℃. Whether it's low-temperature transportation or normal-temperature operation, media (water, oil, gas, weakly corrosive liquids) can pass smoothly without frequent valve replacement.

Next, let's talk about its core highlight-the "double-ball" design. Ordinary ball valves only have one sealing ball, which is prone to leakage once worn. However, this model has two sealing balls cooperating with each other. Combined with the flexible sealing technology homologous to the floating ball valve, the leakage rate is directly reduced to Class VI of the GB/T 13927-2008 standard, basically achieving "no dripping or leakage". Moreover, its valve seat is made of wear-resistant PTFE material, and the number of opening and closing times can reach more than 100,000 times, which is more than twice as durable as ordinary valves. There's no need for frequent disassembly and maintenance, saving a lot of operation and maintenance effort.

In actual use, you'll find it extremely "versatile": in chemical workshops, it prevents corrosion and leakage when transporting acid-base solutions; in water treatment plants, it adjusts water flow with fast opening and closing (0.8-2 seconds per time) and accurate control, no need for workers to keep an eye on it; in heating systems, it adjusts water temperature and won't get stuck in low-temperature environments; even in the food processing industry, when transporting fruit juice and sauces, its sanitary-grade material can meet the requirements without contaminating the medium.

In terms of after-sales service, Zhengmao Valve has always been reliable-one-year warranty. From installation and commissioning to daily use, whether you want to ask about operating skills or encounter minor faults, just make a call or send a message, and there will be a dedicated person to respond 24 hours a day. You won't be left waiting "for a long time with no one in charge". If you want to know the latest quotation and specific technical details of this double-ball ball valve, or want to find out if our company has a new upgraded version of floating ball valve or industry solutions recently, just follow our official WeChat public account or official website. New updates and consultations will be posted in a timely manner, ensuring you get first-hand information and choose a worry-free good valve.