Duplex 2507 Full Lug Butterfly Valve Flanged PN16 DN350 Tricentric Butterfly Valve

Super Duplex 2507 Flanged PN16 DN350 Triple Offset Butterfly Valve

Product Features

      All primary pressure-bearing and flow-passing components, including the valve body and disc, are manufactured from 5A super duplex stainless steel (ASTM A995 Gr. 5A). With a pitting resistance equivalent (PREN) exceeding 40, this material offers enhanced resistance to highly corrosive media such as seawater, high-concentration brine, hot concentrated sulfuric acid, and phosphoric acid, thanks to its higher chromium, molybdenum, and nitrogen, the valve demonstrates exceptional resistance to highly corrosive media such as seawater, high-concentration brine, hot concentrated sulfuric acid, and phosphoric acid. It is particularly effective at preventing pitting and crevice corrosion in high-temperature, high-chloride environments. The DN350 large-diameter, full-bore design ensures low flow resistance and high-capacity continuous flow, preventing system pressure buildup and meeting the flow requirements of large-scale process pipelines.

Product Advantages

  ● Based on the principle of three-dimensional eccentric geometry, the disc completely disengages from the sealing surface the moment it opens and precisely wedges into place the moment it closes, ensuring frictionless and scratch-free operation throughout the entire 90° rotation cycle.
  ● It employs a self-compensating sealing pair composed of a metal hard seal and high-temperature-resistant flexible graphite composite. 
  ● The double-flanged end face gasket sealing structure ensures that fastening bolts do not penetrate the valve body.

Design Standards

Product detail 

Application

    Chemical and Petrochemical Industries,Power Generation, Water Treatment and Environmental Protection,Metallurgy and Shipbuilding.

About Us

Zhejiang Yugong Fluid Technology Co., Ltd. is a comprehensive high-tech enterprise integrating production and sales. The company manufactures and operates professional butterfly valves made of stainless steel, carbon steel, titanium and other materials. Founded in 2012, the company is located in Yongjiao Oubei, the "hometown of pumps and valves in China", covering an area of 4,000 square meters and has more than 80 employees. Aiming high and forging ahead, the company looks forward to working hand in hand with new partners and walking all the way!

Our Workshop

F&Q

Customer Service

1. Before signing an official contract with our customer we will help to analyze and provide professional solution based on customer project information and come out with optimum solution.
2.  Your inquiry related to our products or price will be replied in 24hrs.
3. Keep informing our customer production process and help arrange quality checking in the factory if necessary.
4.  one-year warranty toproducts.