Product Code : VF--ZCC-Z99-CU
Nominal diameter: DN500-DN2400
Nominal pressure PN16-64
The valve body material is cast steel WCB.
Connection method: RF flange
Sealing surface material: 13cr stainless steel, bypass valve DN50 - DN100, electric/manual, installed at the water inlet of the turbine volute
It is widely applied in hydropower stations with high water heads
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Basic parameters
The valve is composed of the valve body, valve disc and valve shaft, bearings and sealing devices, operating mechanism and auxiliary devices. Its design and manufacture shall comply with the provisions of GB12238-89
2. The valve should have sufficient strength and rigidity. The valve should be capable of withstanding a pressure of 1.6Mpa. After assembly, it should act flexibly, operate smoothly, and there should be no harmful vibration when closing and opening under various working conditions
The valve body can be closed within 300 seconds by moving water
4. When fully closed under high static water, the leakage rate should comply with the provisions of GB and be basically zero
5. Electric actuator model: DZW180 type
6. It is equipped with a position indicator and limit switch
7. The valve body is made of cast steel
The bypass circuit is composed of an electric valve with a diameter of DN100 and pipelines
9. The power supply is the conventional 380V, 50Hz type.
Characteristics
1. Compact structure, reasonable design, good valve rigidity, smooth channel and small flow coefficient
2. The sealing surface is made of stainless steel and hard alloy, ensuring a long service life
3. Flexible graphite packing, reliable sealing, and easy and flexible operation
4. The drive modes are manual, pneumatic, electric and gear transmission
5. The structural forms are elastic wedge single gate plate and rigid wedge single gate plate double gate plate types.
enforce standards
Design and manufacture GB12238-08
The pressure test shall be conducted in accordance with GB/T13927-08
The structural length shall comply with GB12221-05
The flange connection dimensions are in accordance with GB/T1223
It is widely applied in hydropower stations with high water heads. During operation, the valve works in coordination with the turbine. According to the principle of hydraulic transition process, through the preset opening and closing program, it effectively eliminates water hammer in the pipeline, achieves reliable cut-off of the pipeline, and plays a role in protecting the safety of the pipeline system.
Packing of Standard Packing:
Typical bulk packaging includes palletized plastic 5 gallon/25 kg. pails, fiber and steel drums to 1 ton super sacks in full container (FCL) or truck load (T/L) quantities. Research and sample quantities and hygroscopic, oxidizing or other air sensitive materials may be packaged under argon or vacuum. Solutions are packaged in polypropylene, plastic or glass jars up to palletized 470 gallon liquid totes Special package is available on request. E FORUs’ is carefully handled to minimize damage during storage and transportation and to preserve the quality of our products in their original condition.
