A a high-performance triple offset butterfly valve also known as Three-eccentric Butterfly Valve.
The working principle of the three eccentric butterfly valve is based on its unique structural design, which achieves sealing and flow control functions through three eccentric distances.

The Double Eccentric High-Performance Butterfly Valve is a new type of butterfly valve designed based on absorbing the advantages of several different structural butterfly valves. The sealing surface of the valve plate of this valve is a - spherical arc surface.

High Performance Butterfly valve features a carbon steel body with stainless steel trim. It is ideally suited for commercial, industrial and mechanical HVAC services. The valve performs isolation and throttling services in heating hot water, condenser water, glycol, chilled water, compressed air, chemical process, and domestic water or steam (2" to12" 150 PSI; on/off 50 PSI modulating).

Concentric Butterfly Valve also be called centerline butterfly valve, it normally use on the Applications as potable water, HVAC, desalination, industrial fluid systems, and general process isolation.
- Design Benefits: molded O-ring seat, non-corrosive bushings, self- adjusting stem seal, and no field adjustment required.
- With compatibility for ISO 5211 actuators, it is easily automated for on-off or modulating service, making them a trusted solution for safe and efficient fluid handling worldwide.

The ventilating butterfly valve is a regulating butterfly valve with simple structure, superior performance, high temperature resistance and corrosion resistance, and can also be used for switching control of low pressure pipeline media. The vented butterfly valve is a non-closed butterfly valve.