Worm Gear Electrically Operated Flange Butterfly Valve Stainless Steel DN150 - DN500

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Worm Gear Electrically Operated Flange Butterfly Valve Stainless Steel DN150 - DN500





on/off or modulating control
butterfly valves/ electric butterfly valves
medium temperature: -10 degree C to 100 degree C


The Actuated Butterfly Valves are suitable for heating and cooling applications. They can also be employed for industrial applications, general services and water treatment. The VB series is equipped with standard On/Off or modulating (4~20mA,) control quarter-turn electric actuator.





1. Cast Iron or nodular cast iron Wafer Body

2. Centric butterfly valve with elastomer liner

3. For On/Off or Modulating Control

4. Manual override non-clutch design. Manual operation can be operated without any lever, clutch or brake upon power voltage.

5. Visual mechanical position indicator for accurate visual reference of valve position

6. Anti-condensation heater and 2 aux. limit switches on standard model

7. Worm Gear Permanently lubricated and self locking

8. Stall Protection Built-in thermal protection





Flow media Cold and hot water, water with max. 50% volume of glycol
Temperature of medium -10°C.. +100°C
Rated pressure 1600 / 2760kPa
Leakage rate Air bubble-tight (Bo 1, DIN 3230)
Size DN150-DN500
Material Body Cast Iron or nodular cast iron ,Shaft Stainless Steel,
Disc Ductile Iron with epoxy coating
Liner EPDM
Actuator QCF/QCM
Output torque 200-2500N.m
Power supply AC220V or AC/DC24V
Run time 15S~,90S
Operating power 40~200VA
Output angle 90°± 3°
ON/OFF control signal 1 wire or 2 wire control
Modulating control signal 4~20mA
Feedback signal 4~20mA
Installation position Upright to horizontalNo upset
Protection class IP66
Ambient conditions - 10°C .to 55°C 0..90% RH
Weight 1.5~50kg
Material Steel. Aluminium Alloy






Product Show:

About Us


Our Factory


1. Tianjin Tanggu Tianshun Valve Co., Ltd established in 1993,specialized in valves about 21 years.


2. We have held the certificates of ISO 9001, SAI Global Watermark, ABS (Design Assessment Certificates), API 6D, CE/PED for many years and view the ISO 9001 as the minimum standard to maintain.


3. Development Area, which occupies land 15000 square meter. It has three advanced valve assembly lines ,two machining cutting lines and two production inspection lines by which we can produce at least 300,000 sets valves per year.


4. We have advanced equipment and guarantee that all the products will keep in good repair in 1 year , 30000 times on/off without leakage under normal use , During the guarantee period , we will take all the responsibility of the losing which is caused by our quality problem.


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Mr. Mak
Tel: 86-20-88189785
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Contact Method
China Welding Flange Online Market
NO.17, CHANGXING RD, Guangzhou, Guangdong, China (Mainland)
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