Electric Sleeve Control Valve T947H
I. Introduction:
The electric sleeve-type special control valve adopts a cage-type multi-hole spool, featuring good regulation performance, low vibration, low noise, reasonable clearance and less leakage. It is equipped with a guide sleeve, ensuring accurate regulation and stable operation. The sealing surface of the valve seat is hardfaced with hard alloy, and the surface of the stainless steel spool is sprayed with hard alloy, providing excellent erosion resistance, wear resistance and long service life. The application of cage structure and spraying technology significantly improves the technical performance and service life of the valve. It is used for flow regulation of various fluids, including condensate systems, deaerator water level regulation, pressure regulation, condensate recirculation regulation, condensate hot water, chemical make-up water regulation and other systems; low-pressure heater drainage and emergency drainage systems, boiler drainage systems, steam drum to continuous blowdown, continuous blowdown to intermittent blowdown regulation, drain tank water level regulation, steam regulation of various auxiliary steam systems, and medium regulation of various oil circuit systems and steam systems, etc.
II. Features:
1. The valve body adopts an equal-section low-flow-resistance flow channel designed according to fluid mechanics principles, with the rated flow coefficient increased by 30%.
2. Large adjustable range, with inherent adjustable ratio of 50, and flow characteristics include linear and equal percentage.
3. The valve plug of the electric sleeve control valve is equipped with equalizing holes at the upper and lower parts, resulting in small unbalanced force, good valve stability, strong sleeve interchangeability, and applicable to large operating pressure differences.
4. The regulating and shut-off type adopts a soft-seal structure spool, reaching Grade VI leakage standard (zero leakage).
5. The servo amplifier adopts deep dynamic negative feedback, which can improve the automatic regulation accuracy.
6. The electric actuator has multiple forms, applicable to 4~20mA DC or 0~10mA DC.
7. The electronic electric control valve can directly control the valve opening through current signals, without the need for a servo amplifier.
III. Materials of Components:
Valve body, valve cover: HT200, ZG230-450, ZG1Cr18Ni9Ti
Spool: ZG1Cr18Ni9Ti, Stellite alloy hardfacing, reinforced PTFE
Packing: PTFE, flexible graphite
Piston rod, bushing: 2Cr13
Gasket: Rubber asbestos sheet, 10, 1Cr18Ni9Ti asbestos spiral wound gasket
IV. External Dimensions:
Model | Nominal Diameter DN | L | H | D | D1 | D2 | b | Z-d | Weight kg |
T947H-100 | 50 | 300 | 805 | 195 | 145 | 88 | 28 | 4-φ25 | 97.7 |
80 | 380 | 863 | 230 | 180 | 121 | 34 | 8-φ25 | 112.6 | |
100 | 430 | 877 | 265 | 210 | 150 | 38 | 8-φ30 | 137.5 | |
T647H-100 | 80 | 380 | 928 | 230 | 180 | 121 | 34 | 8-φ25 | 97 |
T47H-100 | 50 | 300 | 525 | 195 | 145 | 88 | 28 | 4-φ25 | 40.53 |
100 | 430 | 590 | 265 | 210 | 150 | 38 | 8-φ30 | 98.9 | |
T947H-64C | 50 | 300 | 805 | 175 | 135 | 88 | 26 | 4-φ23 | 90.8 |
80 | 380 | 863 | 210 | 170 | 121 | 30 | 8-φ23 | 102.3 | |
100 | 430 | 877 | 250 | 200 | 150 | 32 | 8-φ25 | 125.6 |
| Machinery & Equipment/Valves/Control Valves | |
