ZDLSY CONTROL VALVE:
1)ZDLSY electric operated y-shape trap valve: ZDLSY is a new-generation steam trap valve specially designed by our company for drainage of thermal power plant. The product is based on PRO-linear flow design and secondary throttling theory for reduced erosion and enhanced service life. The valve core and seat apply integral hard alloy and the internal leak rate is ≤ Level VI upon enclosure. The dismountable middle cavity sealing design avoids external leak and facilitates maintenance. The product is suitable for places with combustible or explosive substances and it can be turned on/off according to signal from control system or regulating instrument, thus meeting the service requirement for controlled parameter. Therefore, the valve product is widely used in sectors like thermal power generation.
2)The product consists of two models-positive action and reverse action. The nominal through diameter rating DN (MM) is 20~100 (3/4"~10")and the nominal pressure rating PN consists of 150lb (2.0MPa), 300lb (5.0MPa), 600lb (11.0MPa), 900lb (15.0MPa), 1500lb, etc. The applicable temperature reach up to 600 Celsius, the air source pressure (MPa) is 0.14-0.4 and the signal scope Pr (KPa) is 20-100 or 40-200. The leak rate is almost 0. The product also includes a variety of specifications.
SpecificationsSteam Trap
Widely applied to power plants, chemical industry, petroleum, metallurgical and other industrial equipment.
Steam Trap
Material
Name
Material
Body
A105, WC9, 12Cr1MoVG
Plug
304+STL, 316+STL
Stem
25Cr2Mo1V, 316
Seat
304+STL, 316+STL
Technical Parameter
DN
15
20
25
32
40
50
65
80
100
Kv
3
5
8
12
17
29
43
70
110
Rated travel
10
16
25
40
Diaphragm effective area
350
350
560
PN
PN16, 40, 64, 100, 150, 160, 200, 250
TEMP
-20 ~ +600
Signal range
20 ~ 100, 40 ~ 200, 80 ~ 240
Supply pressure
0.14 ~ 0.40
Leakage
V, VI
Zhejiang Yongsheng Instrumentation Co., Ltd. is a professional shareholding enterprise. We specialize in the production of instrumentations of industrial automation - control valves.
Located beside the beautiful Fuchun river in the south of Hangzhou City, our company covers an area of over 30, 000 square meters and possesses more than 200 employees, including over 60 senior and medium-level technicians in various fields. Our main products include: Pneumatic diaphragm control valve, self-operated pressure control valves, linear-motion regulating valve series, rotary-motion regulating valve series, intelligent control valve series with more than 200 types and thousands of specifications. With annual output of control valves more than 20, 000 sets. In 2008 our company invested 30 million yuan found the Yongsheng fluid machinery Co., Ltd. With annual output of 5000 tons and start the processing line of new craft cast steel, stainless steel, cast iron which guarantee the valve quality at first manufacture process.
Our company adopts the scientific management, strictly according to the ISO9001: 2000 quality management system. We carry out the high-standard production relying on the solid technological power, advanced equipment, production technique and perfect means of test, and provide the systematic services based on the complete after-sales service system. In addition, we constantly produce high-quality products expected and required by the customers, for pursuing for existence in competition, benefits in quality, advancement in technology and promotion in management.
If you are interested in our products, please feel free to contact us for more information. We are looking forward to cooperating with you in the near future.
