High Performance Double offset butterfly valves are mainly suitable for drainage of water plants, power plants, steel mills, smelting, chemical industry, water source engineering, environmental facilities construction and other systems, especially for water pipelines, as regulating and closing equipment.
During the opening or closing of the valve, the disc sealing surface will gradually deviate and gradually press into the seat sealing surface, thereby reducing the mechanical wear and damage of the butterfly valve and the valve seat during opening or closing,the sealing performance and service life of the butterfly valve will be greatly improved.
* Design standard as per: API 609, ASME B16.34, EN593, JB/T 8527.
* Small installation space, light weight, and maintenance friendly;
* Good sealing effect and long service life;
* Good flow adjusting ability, high precision of flow characteristic curve and good dynamic adjustment stability;
* For soft seat the leakage rate: ANSI B 16.104 VI.
* Used for special working conditions, including vacuum and oxygen working conditions.
【ZFVALVE Quality Control】:
Quality inspection and inspection of Gear Butterfly Valve:-ZFV tests and inspects every valve, and every valve we deliver passes our quality inspection. In addition to completing the butterfly valve photo, we also provide customers with a quality test certificate.ZFV welcomes any customer to come to our factory to participate in valve inspection.
If required, the customer can nominate a third party inspector to come to our factory to witness the test, we assist the inspector to complete all necessary procedures.We should conduct comprehensive testing and inspection according to customer requirements and standard requirements. If customers have any special requirements, we will deal with them accordingly.