Industrial Butterfly Valves , Single / Double Acting Wafer Style
Pneumatic piston low load carbon steel on-off butterfly valve
ZSHW/ ZDRW Series of Low Load Butterfly Valve,the body and disc are
welded by the steel plate. Its features are simple structure,
compact and light, easy operation. Equipped with rack and pinion
type pneumatic actuator or electronic type electric actuator, and
it is applicable to low pressure or high temperature gas.
Specification and Technical Parameter
Table 2 Rated Flow Coefficient
Table 3 Technical Parameter
Inherent flow characteristic:EQ%
Pneumatic actuator type:Single acting,Double acting
Supply air pressure(MPa):0.4
Electronic actuator:According to the required torque
Voltage:220V.AC 50Hz 380V.AC 50Hz(Three-phase)
Connection:PN≤0.6MPa HG/T20592-2009 RF
Working temperature (℃):Carbon steel:-20～425℃,Stainless steel:-40～595℃
Note:The thickness of flange according to HG/T20592-2009 PN0.25MPa.
Table 4 Main Performance Parameter
Zhejiang Yongsheng Instrumentation Co., Ltd is a professional
corporation specializing in developing and manufacturing
instruments of industrial control valves. Our company is a state
approved A Class manufacturer of pressure pipe components; National
Support for High-tech Enterprise; State Torch Program Units; and is
superior supplier of Sinopec, CNPC, CNOOC and other important
national oil and chemical enterprise.
Our companyhave two factories: one with an annual output of 5000
tons of resin sand cast and another produces 20,000 sets of valves.
We have more than 300 senior and middle-class technicians. Our
company has many patent products including: new type of intelligent
control valve, three eccentric butterfly valve, “V” ball valve,
pneumatic Y–trap valve and pipe regulating device etc. We have
fully realized a stream line from valve body casting, machining,
testing, and packing for self regulating valve series,
linear-motion regulating valve series, rotary-motion regulating
valve series, intelligent control valve series, and we have turned
into one of the most advanced control valve R&D, and
manufacturing base in China.
We have offices and franchisers in Beijing, Shanghai, Shandong,
Hubei, Henan, Jiangsu, Sichuan and northwest of china. While
stabilizing the domestic market, the company is also vigorously
expanding international market. This faculty enables us to provide
professional and in-time services to our customers.