Electric hydrophobic regulating valve
I. Introduction:
The ZDLSY electric special steam trap control valve is a new generation of steam trap designed and manufactured based on the steam trap requirements of thermal power plant equipment. It consists of two parts: an electric actuator and an angle-type valve body. It has the advantages of no dead angle in internal structure, the core and valve seat made of integral hard alloy, internal leakage ≤ Class VI when closed, and high flow characteristic accuracy. The product adopts a nearly linear core design to reduce flow resistance, and applies a two-stage throttling principle to reduce erosion and extend service life. Powered by an electric actuator, it automatically adjusts the valve opening according to the controlled parameters of the control system, receiving 0-10mA or 4-20mA DC signals, to achieve continuous adjustment of process parameters such as pressure, flow rate, and liquid level of the fluid in the pipeline, and can also receive remote DCS signals. This product features sensitive operation and precise signal transmission, and is widely used in industrial automation control systems such as electric power, metallurgy, chemical industry, and light textile, gaining extensive applications in the industrial field.
II. Component Materials:
Valve body, valve cover: HT200, ZG230~450, ZG1Cr18Ni9Ti
Valve core, valve: 1Cr18Ni9Ti, Stellite alloy hardfacing
Stuffing core: Polytetrafluoroethylene (PTFE), flexible graphite, stainless steel bellows
Push rod, bushing: 2Cr13
III. Application:
It is composed of a 381L series electronic electric actuator and a three-way regulating mechanism. The electric actuator has a built-in servo system, so no separate servo amplifier is required; it can be controlled to operate as long as there is an input signal and a power supply, with simple wiring. The regulating mechanism has two working modes: confluence and diversion. In some occasions, it can replace two two-way valves and one three-way connection, thus being widely applied. It is commonly used for two-phase regulation of heat exchangers and simple ratio regulation.
IV. Technical Parameters:
Nominal Diameter DN | 20 | 25 | 32 | 40 | 50 | 65 | 80 | 100 |
Flow Coefficient | 5 | 8 | 12 | 17 | 29 | 43 | 70 | 110 |
Rated Stroke (mm) | 16 | 25 | 40 | |||||
Nominal Pressure PN | 150LB (2.0MPa) -- 1500LB (25.0MPa) | |||||||
Working Temperature | -445 | |||||||
Signal Range | 4-20mADC, 200VAC, 380VAC | |||||||
Power Supply | 220VAC 50HZ, 380VAC 50HZ, 60HZ | |||||||
Allowable Leakage | Approximate zero leakage | |||||||
Sensitivity | (0.5-5%) F.S | |||||||
| Machinery & Equipment/Valves/Control Valves | |
