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Electric flange center line butterfly valve


Product model: D941X

Nominal diameter: DN50 ~ 1200mm

Pressure range: PN1.0MPa ~ 2.5MPa

Service temperature: ≤ 120 ℃

Applicable medium: clean water, no corrosive gas

Design standard: GB / T2238-1989

Connection size: GB / T9113.1-2000; GB/T9115.1-2000; JB78

Structure length: GB / T12221-1989

Pressure test: GB / T13927-1992; JB/T9092-1999


PRODUCT OVERVIEW

Electric flange center line butterfly valve is composed of electric actuator and medium line butterfly valve. Valve plate and soft seal (rubber ring and PTFE ring) are selected to reduce leakage. With good sealing performance, it is used in normal temperature environment and low and medium pressure places. Due to the limitation of structural materials, the valve is not suitable for high temperature, high pressure, corrosion and wear resistance industries. The (AC 220V, 380V) power supply voltage is configured as the driving power, and the operation can be controlled by receiving the (4 ~ 20mA) signal output by the industrial automation instrument control system. It is widely used in petroleum, chemical industry, metallurgy, light industry, papermaking, power station, refrigeration and other industrial fields.


PRODUCT FEATURES

1. Electric opening and closing, with arbitrary adjustment, check and cut-off functions, easy to operate, safe and reliable.

2. The flow resistance is small, and the flow resistance coefficient shall not exceed 0.3 when the valve is fully opened.

3. In case of accident or power failure, the opening and closing of butterfly valve can be controlled by manual operation.

4. It can continuously realize the actions of slow opening, fast opening, fast closing and slow closing, and effectively prevent the backflow of medium at the pump outlet and the generation of water hammer.

5. The energy-saving drive motor is the same as that of the ordinary butterfly valve, which can realize the functions of high-speed small torque in the fast closing section and large torque in the slow closing low section.


MAIN TECHNICAL PARAMETERS

Nominal diameterDN(mm)50~1200
Nominal pressurePN1.0、1.6、2.5MPa
Flange standardJB/T79、GB/T9113、HG20594-97
Connection formFlange type
Valve plate formVertical plate
Flow characteristicsApproximate quick opening type
Action range0~90°
LeakageAccording to GB / T4213-92, it is the value of kV10-4
Basic error±2.5%
Return difference±2.5%
dead zone1%(adjustable)
Adjustable range50:1
Configure actuatorIt can be equipped with PSQ, HQ, UNIC, 361rs, HR and other series of angular stroke electric actuators
control modeSwitch in place lamp (switch two position control), intelligent regulation (4 ~ 20mA analog signal control)


MATERIAL OF MAIN PARTS

Part nameMaterial name
valve bodyCast iron, cast steel, stainless steel, chromium molybdenum steel, alloy steel
DiscCast steel, alloy steel (hard chromium plating), stainless steel, chromium molybdenum steel
seal ringRubber, PTFE, ppl, stainless steel, polyester, anti-wear material
Valve stem2Cr13、1Cr13Stainless steel, chromium molybdenum steel
FillerPolytetrafluoroethylene, flexible graphite


MAIN OVERALL DIMENSIONS

Nominal diameter(DN)Main dimensionsFlange size
1.0MPa1.6MPa2.5MPa
LH1HDD1z-ФdDD1z-ФdDD1z-Фd
501085301121651254-181651254-181651254-18
651125301151851454-181851454-181851458-18
801145651202001604-182001608-182001608-18
1001276001382201808-182201808-182351908-22
1251406401642502108-182502108-182702208-26
1501407051752852408-222852408-223002508-26
2001527752003402958-2234029512-2236031012-26
25016594524339535012-2240535512-2642537012-30
300178107025044540012-2246041012-2648543016-30
350190114028050546016-2252047012-2655549016-33
400216121030556551516-2658052516-2662055016-36
450222133535061556520-2664058516-3067060020-36
500229141538067062020-2671565020-3073066020-36
600267160544578072520-3084077020-3384577020-39
700292184448089584024-3091084024-3696087524-42
8003182040530101595024-33102595024-39108599024-48
90033022555801115105028-331125105028-391185109028-48
100041023806501230116028-361255117028-421320121028-56
120047026407601455138032-391485139032-481530142032-56

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