Gear Op Two Offset Hastelloy High Performance Butterfly Valves 6 Wafer

Gear Op Two Offset Hastelloy High Performance 6 Wafer Butterfly Valve

What are High-Performance Butterfly Valves?

Double offset butterfly valve is an HPBFV rated for ANSI (285 @ 100F or 100 psig @ 400F for 150# ANSI) rated applications. For this type of valve, the disc and stem are double offset, (set back behind the disc and to the side) causing the disc to rotate into place upon closure without significant seat contact. Different from an RSBFV, the stem is located behind the disc, which enables the disc to “rub” over the seat in the last 10% of travel, during the 90-degree rotation.
This seat usually is some type of Reinforced Teflon or for high temperatures above 450F, the seat can be metal, usually a hardened metal, like Stellite. The most user-friendly allow removal/replacement of the stem, disc, and seat without welding

Material List

Our Soft Sealing Principle



Based on many years of research, TEKO high performance butterfly vales are used to replace the imported brands and the cost is only one fourth of similar products. It provides bi-dreictional bubble tight shutoff. The unique design creates a self-energized seal both in low pressure and high pressure applications. The rating pressure is from ASME class 150 up to 600 cold working pressures.

TEKO Industry Co., Limited, established in 2010, is a rapidly growing industry products manufacturer in China. Throughout 8 years of development, we have been now becoming the major valve supply in industries of petroleum, chemical plant, power station, mining, metallurgy, waste water treatment, shipbuilding etc.

Recently our business scope has covered the industry valves and marine valves, including the gate/globe/check valve, butterfly valve, knife gate valve, pinch valves, high performance butterfly valve, strainer and so on. With our experienced workers, we can now workable with big capacity up to 500 tons per month.

Always bearing in mind “quality first”, we operate production strictly following the ISO9001 regulations. In addition, our valves are hydraulic testing according to the requirements of related standards, such as API598. We ensure that all valves delivered are not satisfy the customer’s requirements, but also exceed their expectation. And we TEKOers truly mean it.

We have engineers with more dozens of years of experiences and that benefit us that we can always updated our valve new technology and new design that can fit most severe fluid services. It is so inspiring after we have handled the tough fluid for our customers, no matter how high temperature/pressure, highly abrasive, highly corrosive is. It also, at the same time, drives us to make progress every single day to offer the best service during the next time.

TEKO’s mission: “Nothing will happen, Except Satisfaction”. Our specialty, down-to-earth attitude, and sound services are core value to us and will lead TEKO to a new height. Please contact us and start to enjoy our good products and services.