Landscape Water System DN200 PN10 304 Cast Flanged Hard Seal Triple Offset Butterfly Valve

Landscape Water System DN200 PN10 304 Cast Flanged Hard Seal Triple Offset Butterfly Valve

Product Features

      This flanged triple-eccentric multi-layer sealing butterfly valve is precision-cast entirely from CF8 austenitic stainless steel. It features a rigid-flexible gradient multi-layer sealing system specifically calibrated for low-pressure applications, combining a classic double-eccentric friction-reducing structure with a third-stage conical self-tightening design. Equipped with GB-standard flanges and a lightweight manual actuator, it precisely addresses four key areas—base material corrosion resistance, sealing compatibility, structural friction reduction, and reliable connections—to address industry pain points such as leakage in low-pressure systems, short seal life, and cumbersome operation and maintenance. It delivers a highly reliable, long-lasting, and easy-to-maintain fluid control solution for low-pressure, high-flow main and branch pipeline networks.

Product Advantages

    ●  It employs a multi-layer sealing structure specifically calibrated for PN10 low-pressure conditions, combining the gradient advantages of a flexible sealing layer and a rigid support layer to overcome the limitations of single-seal configurations in low-pressure applications. Under low-pressure conditions, the flexible sealing layer achieves a tight, full-circumference seal through elastic deformation, resulting in bubble-level zero leakage. This precisely resolves the industry-wide challenge of micro-seepage common in pure hard seals under low pressure and demonstrates excellent tolerance for minute impurities in the medium.

    ● It employs an advanced three-dimensional triple-eccentric design, based on the classic **double-eccentric structure**—where both the valve stem and the disc are eccentric. Through dual trajectory offset, the disc first moves radially away from the sealing surface the moment it opens, significantly reducing the friction stroke. This minimizes contact wear on the sealing surface at the structural level, effectively extending the service life of the seals.

    ● The mechanism incorporates a built-in mechanical self-locking device that securely locks the butterfly disc in place at any opening position, preventing drift caused by medium impact or pipeline vibration and ensuring long-term, stable flow control accuracy. The entire drive system is a purely mechanical structure that requires no external power or air supply and contains no vulnerable electrical components. It is naturally suited for unpowered environments such as outdoor pipe wells, remote pumping stations, and unmanned sites. It requires only simple lubrication for long-term, stable operation, resulting in extremely low maintenance costs.

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.