The Most Durable of All Resilient-seated Butterfly Valves with Carbon Steel

Overview

Acclaimed as one of the most durable of all resilient-seated butterfly valves in the industry, this valve excels in a wide variety of applications. Cast in both wafer and tapped-lug patterns in a wide variety of material choices, butterfly valve features a one-piece body for reduced weight and increased strength. The unique stem-hole design in the disc ensures a dry stem journal, and the hard-backed seat allows ease of installation, reliable operation, and is field-replaceable without special tools. The butterfly valve is available in sizes 2" through 36" (50 mm through 900 mm). Engineered for long-term, maintenance-free performance, the butterfly valve is commonly selected for a variety of applications spanning a wide range of industries:

• Chemical and petrochemical
• Agriculture
• Oil and gas drilling and production
• Food and beverage
• Water and waste water
• Cooling towers (HVAC)
• Power
• Mining and materials
• Dry bulk handling
• Marine and government

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

Our major products

1. Gate valve series
2. Ball valve series
3. Globe valve series
4. Check valve series
5. Butterfly valve series
6. Other valve series

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.