Butterfly valve. Valves and are generally made of
plastic or steel, the latter being the most widely used in chemical and
petrochemical applications. Steel grades range from the most common
type, namely carbon steel, with standard stainless steel being the
second most common. Stainless steel alloys, which include nickel or
copper are used in applications that require higher corrosion or heat
resistance. In such cases, the most commonly used valve configurations
-- ball valves, gate valves, check valves, globe valves and butterfly
valves -- are often forged or cast as duplex valves, super duplex
valves, alloy 20 valves, monel valves, inconel valves, incoloy valves
and 254 SMO valves (6Mo valves). Titanium valves are also used in some
highly corrosive applications. Titanium is not a stainless steel alloy.
Design Details: A butterfly valve is a valve which can be used for isolating or regulating flow. The closing mechanism takes the form of a disk. Operation is similar to that of a ball valve (quarter turn) which allows for quick shut off. Butterfly valves are generally favoured because they are lower in cost to other valve designs as well as being lighter in weight, meaning less support is required. The disc is positioned in the centre of the pipe, passing through the disc is a rod connected to an actuator on the outside of the valve. Rotating the actuator turns the disc either parallel or perpendicular to the flow. Unlike a ball valve, the disc is always present within the flow, therefore a pressure drop is always induced in the flow, regardless of valve position. The valve may also be opened incrementally to throttle flow.
Quality assurance system
1.Sclerometer
2.Universeal material testing machine
3.High speed analyzer
4.Chemical test
5.Electric analysis scales
6.Nde mt (magnetic powder) inspection
NDE UT (ultasonic) inspection
NDE PT (penetrate) inspecion
PMI spectrum analysis
Hydraulic pressure test
Cryogenic ball valve test
Fire-safe test
Certification
API-6D
API-Q1
API2014
ISO 9001-2008
ISO-TS-29001
CE-PED
API 607 Fire safe certificate
API 6FA Fire safe certificate
China national petroleum corporation approved vendor
Shanghai high enterprise certificate
Gate valve series
Ball valve series
Globe valve series
Check valve series
Butterfly valve series
Other valve series
Our major products
Exporting is the dominant operation at Kaitai.In the process of KATA brand promotion and building up our distribution channels over the years and now has many satisfied and loyal customers.KATA is well recognized and its products are widely used in the oil and gas industry,power plant,boiler,metallurgy,pressure vessel,water supply and drainage and etc.
