W400-W700 butterfly valve

W400 W700 butterfly valve
The components of W400 W700 butterfly valve are available in various materials, suitable for various media, and can be used for various corrosive media. This product is widely used in industries such as petroleum, chemical, food, medicine, textile, papermaking, and water supply and drainage.
Comprehensive information of W400/W700 centerline butterfly valve, combined with product characteristics, application scenarios, and technical parameters:
1. Core Features
Structural design: Adopting American technology, the double eccentric structure achieves rapid opening and closing (rotation angle of 90 °), low operating torque, and zero sealing leakage.
Material options: The valve body can be made of cast steel, stainless steel, etc., and the sealing surface is covered with PTFE/EPDM, suitable for corrosive media (such as chemical and food industries).
2. Technical parameters
Path range: DN50~DN1200 (W400/W700 series covers mainstream industrial needs).
Pressure rating: PN0.6~2.5MPa, some models support high-pressure working conditions.
Connection method: flange type/clamp type, in accordance with GB/T 2238 standard.
3. Application Fields
Ship and Industry: Flow regulation of petroleum and chemical pipelines, and selection of aluminum bronze materials for seawater systems.
Special requirements: Sanitary grade butterfly valves (such as W700) are suitable for the food/pharmaceutical industry, with electronic polishing on the surface without dead corners.
4. Selection suggestions
Cost effective choice: The W400 series is suitable for regular working conditions and is priced about 15% to 20% lower than the W700.
Maintenance reminder: Regularly check the wear of the sealing surface to avoid foreign objects getting stuck and causing opening and closing failures.