Gear Operated Flanged PN25 Triple Offset Butterfly Valve CS 316 Trim

Product Features

CF8 for pressure resistance, F316 for chlorine resistance, DN150 standard diameter, PN25 medium-to-high pressure with zero leakage—designed for medium-to-high pressure pipelines handling chlorine-containing or mildly corrosive media that require temperature and pressure resistance. It combines the strength of a cast 304 base, a forged 316 disc resistant to pitting corrosion, and a Stellite alloy wear-resistant seal to create a zero-leakage shut-off hub.

Product Advantages

● The sealing pair features a precision-ground Stellite hard alloy overlay, with rigid metal-to-metal engagement—free of graphite, rubber, or PTFE. It exhibits no cold flow, thermal relaxation, or carbonization under acid/alkali corrosion, steam purging, or particle-laden media erosion. It maintains bidirectional zero leakage from zero pressure to full rated pressure differential, eliminating internal leakage caused by aging soft seals, with a service life matching that of the pipeline.
● The valve stem is supplied as a bare stem without a fixed actuator. Users can independently select handles, worm gearboxes, or electric/pneumatic actuators based on site requirements, avoiding redundant investment.
● Based on a three-dimensional eccentric geometric design, the disc immediately disengages from the seat upon opening and precisely wedges into place upon closing. The sealing surfaces experience zero friction and zero scraping throughout 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.