DN700 Electric Flanged PN6 321 Stainless Steel Triple Offset Butterfly Valve

Product Features

Custom-designed for large-diameter, low-pressure thermal systems, this valve is constructed from titanium-stabilized 321 stainless steel, maintaining excellent resistance to intergranular corrosion within the sensitization temperature range of 300–800°C. The DN700 large-bore design meets ultra-high flow demands, while Stellite alloy sealing surfaces ensure wear-free operation over the long term. Remote electric control enables unattended operation, making it the ideal shut-off valve for high-temperature steam, process gas, and flue gas pipelines.

Product Advantages

● The sealing pair features a precision-ground 321 metal substrate with a Stellite hard alloy overlay, providing rigid all-metal engagement—free of graphite, rubber, or PTFE. This eliminates internal leakage caused by aging soft seals, ensuring a service life equal to that of the pipeline.
● In the event of overpressure, fire alarms, or leaks, the electric actuator instantly delivers full torque to close the valve, providing a reliable final mechanical line of defense for ESD and SIS systems.
● Based on a three-dimensional eccentric geometric design, the disc immediately disengages from the seat upon opening and precisely wedges into place upon closing, ensuring zero friction and zero scraping across the entire 90° rotation.

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.