CBETB Triple Eccentric Hard Seal Butterfly Valve

Product Application

This butterfly valve is suitable for food, pharmaceuticals, petrochemicals, power plants, steel plants, industrial environmental water treatment, high-rise buildings, and water supply and drainage pipelines. It is an ideal device for regulating flow and cutting off fluids.

Product Features

1. This butterfly valve is a new generation product developed by absorbing and digesting foreign technology, combined with domestic user feedback and accumulated production experience.

2. It adopts a triple eccentric structure, and the valve body sealing ring uses a multi-layer sealing ring structure, ensuring uniform and reliable contact between the butterfly plate and the valve body sealing surface, achieving gas-tight sealing with zero leakage.

3. Unique structure, flexible operation, labor-saving, convenient, and long service life.

4. High temperature resistance, corrosion resistance, wear resistance, and triple eccentric design.

Execution Standards

Design and Manufacturing

Flange Connection

Structural Length

Testing and Inspection

GB/T 12238, JB/T8527

GB/T 9113, JB/T79, HG20592

GB/T 12221

GB/T 13927

Main Technical Parameters

Nominal Diameter

DN(mm)

50~2000

50~500

Nominal Pressure

PN(MPa)

0.6

1.0

1.6

2.5

4.0

Test Pressure Ps(MPa)

Strength Test

0.9

1.5

2.4

3.75

6.0

Seal Test

0.66

1.1

1.76

2.75

4.4

Gas Seal Test

0.6

0.6

0.6

0.6

0.6

Leakage Rate

Zero leakage or <0.1xDNmm/s (compliant with GB/T13927 standard)

Applicable Temperature

Carbon steel: -29°C~425°C Stainless steel: -40°C~600°C

Applicable Media

Air, water, steam, gas, oil products, and weakly corrosive media such as acids, alkalis, and salts.

Connection Methods

Flange, wafer, lug, welded

Drive Types

Worm gear drive, pneumatic drive, electric drive, hydraulic drive

Main Component Materials

Component Name

Material

Valve Body

Cast steel, stainless steel, chrome-molybdenum steel, alloy steel, duplex steel

Butterfly Plate

Cast steel, stainless steel, chrome-molybdenum steel, alloy steel, duplex steel

Valve Seat

Stainless steel, hard-faced Stellite and other hard alloys

Sealing Ring

Multi-layer combination of stainless steel and high-temperature resistant asbestos board

Valve Stem

20Cr13, 1Cr13 stainless steel, chrome-molybdenum steel, special materials

Sleeve

Austenitic stainless steel, 304 nitrided

Packing

Flexible graphite, PTFE

Gland

Cast steel, stainless steel

Bracket

Cast steel, stainless steel