TURBINE VENTILATION BUTTERFLY VALVE
TURBINE VENTILATION BUTTERFLY VALVE

Product review

Description

Product characteristics

1. Ventilation butterfly valve is novel and reasonable in design, unique in structure, light in weight and quick in opening and closing.

2. The butterfly valve has the advantages of small operating moment, convenient operation and smart labor-saving.

3. Using suitable materials to meet the different temperatures of low, medium and high media and corrosive media.

4. No connecting rods, bolts, etc., reliable operation, long service life, not affected by the flow direction of media.

 

Standard Specification for Ventilation Butterfly Valves:

Design and Manufacture Standards: GB/T 12238-1989; JB/T8692-1998

Structural Length Standard: GB/T 12221-2005

Connection Flange Standard: GB/T 9115.1

Pressure and temperature grade: GB/T 12224-2005

Test Inspection Standard: GB/T 13927-2008

 

Main technical parameters

Nominal diameterDN(mm)

50~2000

Nominal pressurePN(MPa)

0.05

0.25

0.6

Test pressure Ps(MPa)

strength test

0.075

0.375

0.9

Sealing test

≤1.5%Leakage quantity

Applicable medium

Gas, dusty gas, flue gas, etc.

Driving form

Manual, Worm and Worm Wheel, Pneumatic and Electrical Drives

Material of Major Parts and Components

Part name

Material Science

valve body

Cast steel, stainless steel, chromium-nickel-molybdenum-titanium steel,

chromium-molybdenum-titanium steel and other special materials

Disc

Cast steel, stainless steel, chromium-nickel-molybdenum-titanium steel,

chromium-molybdenum-titanium steel and other special materials

Seal ring

Cast steel, stainless steel, chromium-nickel-molybdenum-titanium steel,

chromium-molybdenum-titanium steel and other special materials

Stem

Carbon steel, 2Crl3, stainless steel, chromium-nickel-molybdenum-titanium steel

filler

Flexible graphite

Applicable temperature

Material variety

carbon steel

Low temperature carbon steel

Alloy steel

austenitic stainless steel

Chromium molybdenum steel

Code name

WCB

LCB

WC6或WC9

C5或C12

铬 Cr-18型、304、31 6

12CrMoV

Resistance to maximum temperature

425℃

345℃

595℃

650℃

600℃

560℃

Minimum Temperature Resistance

-29℃

-46℃

-29℃

-29℃

-196℃

-40℃

Applicable working temperature

≤ 25℃

≤345℃

≤595℃

≤ 650℃

≤600℃

≤560℃