overview
The WB300 series high-performance butterfly valve is a new type of butterfly valve designed based on the advantages of several different structural butterfly valves. The sealing surface of the valve plate of this butterfly valve is a spherical arc body, and the sealing mechanism achieves a true dynamic seal through system pressure, thus having excellent cutting performance and durability. It has a small volume, light weight, wide manufacturing range, and is easy to maintain and repair.

Main performance parameters
[Valve Body]
Flat casting shape
Nominal diameter 80-600mm
Nominal pressure PN 1.6 ANSI150 JIS 10K
Connection type: clamp type
Material ZG25
ZG0Cr17Ni12Mo2 and ZG1Cr18Ni9
Upper valve cover room temperature type (cast together with valve body): -45 ° C -+200 ° C
High temperature type+200 ° C -+500 ° C

[Valve components]
Valve plate form: Partial spherical surface type (sealing ring contact type)
Flow characteristics approximate equal percentage characteristics
Valve plate material
ZG0Cr17Ni12Mo2 and ZG1Cr18Ni9+hard chromium plating ZG0Cr17Ni12Mo2 and ZG1Cr18Ni9+hard alloy overlay welding
Valve plate angle
90 ° (equipped with RC and ZSH actuators)
60 ° (equipped with HA film actuator)
Valve seat material
Hard seal (0Cr17Ni12Mo2) Soft seal (PTFE+MoS2)
Bearing material 0Cr17Ni12Mo2

Ordering Instructions
1. Product model and name 2. nominal diameter DN (mm) 3. nominal pressure 4. flow characteristics requirements 5. valve body material and valve trim material
6. Type of medium and temperature range 7. Pressure difference before and after the valve 8. Sealing form 9. Supporting accessories