Cryogenic Butt-Weld-End Butterfly Valve

If you're concerned about specific parameters, let's be straightforward: the nominal diameter ranges from DN40 to DN1000, capable of handling both precise control for small pipelines and bulk transportation for large pipelines; the pressure rating reaches PN1.6-PN6.4MPa, ensuring reliable pressure resistance at low temperatures; the main body is made of low-temperature dedicated stainless steel, and the sealing surface uses low-temperature resistant PTFE composite material-even in a liquid nitrogen environment of -196℃, there's no risk of seal failure. There are two connection methods: flange and wafer type, fully complying with standards such as GB/T 12238 and API 609. It can be installed directly on-site without additional size modifications, saving a great deal of construction time and costs.

Friends who have used cryogenic valves know that two common issues arise at low temperatures: first, difficult operation, as low temperatures stiffen components; second, poor sealing, as leaks can lead to safety hazards. Our cryogenic butterfly valve is designed to address these problems specifically-the valve stem is treated with low-temperature lubrication, making manual operation easy even at -196℃. If you opt for electric actuation, the response time can reach 0.8 seconds, ensuring flexible operation; the sealing structure adopts a dual anti-leakage design, which not only prevents medium leakage but also blocks external moisture from entering the valve cavity and forming frost, avoiding component freezing. Additionally, there are no dead corners inside the valve body, making cleaning convenient-ideal for scenarios requiring high cleanliness, such as food-grade cryogenic freezers.

When it comes to application scenarios, the range is even wider. It's used to regulate flow in LNG storage tanks and transmission pipelines, control medium direction in cryogenic separation units of the petrochemical industry, and can also be found in cryogenic freeze-drying equipment for the pharmaceutical industry and refrigerated warehouse systems for the food industry. For scenarios requiring simultaneous flow and pressure control, pairing it with floating ball valves is even more suitable. For instance, in a cryogenic chemical reactor, the butterfly valve stably adjusts the feed rate, while the floating ball valve precisely controls the reaction pressure. Their cooperation ensures both production efficiency and safety.

In the valve business, we don't just sell products-we sell peace of mind. This cryogenic butterfly valve comes with a one-year warranty directly from us. As long as the damage is not man-made, any issues during the warranty period, whether seal failure or component malfunction, will be covered by free maintenance or part replacement-no extra cost to you. Moreover, day or night, if you encounter problems during installation or commissioning, you can contact our technical team at any time; we're available 24/7 to provide video guidance or phone support, so you don't have to struggle with the instruction manual alone.

To learn more details about this cryogenic butterfly valve, or to stay updated on the company's latest cryogenic solutions and customer cases, simply follow Zhengmao Valves' official accounts-we post the latest updates promptly. If you have needs for special working conditions, feel free to discuss them with us directly. We'll definitely customize a suitable solution for you, ensuring you use our products with complete confidence.