Motorized wafer type butterfly valve is in the chemical industry, building materials, power station, glass and other industries in the ventilation and environmental protection engineering dusty cold air or hot air gas pipeline, as a gas medium to regulate the flow or cut off the device to be used. Adopting the new structure form design and manufacture of centerline butterfly plate and short structure steel plate welding, compact structure, light weight, easy to install; small flow resistance, large circulation, can avoid the influence of high-temperature expansion, lightweight operation; no linkage, bolts, etc., work reliably, long service life; can be installed in multiple positions, independent of the influence of the medium flow direction.
Electric wafer type butterfly valve Specification
Normal Size Range: 2"-80"
Normal Pressure Rating: PN10~PN64, CLASS150~600
Material: WCB, CF8,CF8M,CF3,CF3M
Operation: Handwheel, Pneumatic, Electric
Temperature Range: -29°C~425°C
Technical Specification：
Design Standard: EN 593, MSS SP67, API 609, BS5155
Face to Face dimension: ISO 5752, EN 558, MSS SP67, API 609, DIN3202
End Standard: ANSI B16.1 Class125LB & B16.5 Class150LB, AS 2129 Table D & E BS 10 Table D & E, DIN 2501 PN6, PN10 & PN16, EN 1092 PN6, PN10 & PN16, ISO 2531 PN6, PN10 & PN16, ISO 7005 PN6, PN10 & PN16, KS B 1511 / JIS B 2210 5K & 10K, MSS SP44 CL. 150LB AWWA C207, SABS 1123 Table 1000/3 & Table 1600/3
Top Flange: ISO5211
Test standard: API 598, ISO 5208, EN 12266
Electric Actuator Wafer Type Butterfly Valve
Common Failures
1. Clamped electric butterfly valve can not be reversed or reversing action is slow, generally due to poor lubrication, spring is stuck or damaged, oil or impurities stuck in the sliding part. In this regard, you should first check whether the oil mist work is normal lubricant viscosity is appropriate. If necessary, the lubricant should be replaced, clean the sliding part of the clamped electric butterfly valve, or replace the spring and the clamped electric butterfly valve.
2. Clamped electric butterfly valve after a long time of use is prone to spool seal wear, valve stem and seat damage phenomenon, resulting in gas leakage inside the valve, the valve action is slow or can not be normal commutation and other faults. At this time, the sealing ring, valve stem and valve seat should be replaced, or the clamped electric butterfly valve for new.
3. If the solenoid pilot valve inlet and outlet holes are blocked by sludge and other debris, closed poorly, the movable iron core is jammed, circuit failure, etc., can lead to clamped electric butterfly valve can not be normal direction. The first three cases should be cleaned on the pilot valve and movable iron core sludge and impurities. Circuit failure is generally divided into two categories: control circuit failure and solenoid coil failure.
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