Power station valve


Introduction for valve of hydropower station:
Valve is the control device of fluid pipe and its basic function is to connect or cut off the medium circulation inside pipeline, change the circulation and flow direction of medium, adjust pressure and flow of medium, protect the normal operation of pipeline equipments. Valve is an important control component of the pipeline.

The common inlet valve for hydro turbine: gate valve, butterfly valve and spherical valve.

The main valve equipments in hydropower station are the inlet butterfly valve or inlet spherical valve for turbine and the supporting expansion joint etc; Of course other ordinary valves (like buttery valve, gate valve and check valve) are also used a lot.
Type and features for valve of hydropower station:
Butterfly Valve Series Nominal diameter: DN100~DN4600
Nominal pressure: PN0.25~4.0MP
Design and MFG. standard: GB/T 122387-89
Structure size standard: GB12221-89
Flange standard: GB9113-2000, GB17241.6-1998
Test standard: GB/T 13927-92
Structure type: Lever type, Vertical plate, Inclined plate
Operated type: Manual, Worm gear, Electric, Pneumatic, Hydraulic, Electro-hydraulic linkage
Spherical Valve Series Nominal diameter: DN300~DN2000
Nominal pressure: PN2.5~14 MPa
Design and MFG. standard: GB12237, AP16D
Structure size standard: GB12221, ANSI B16.10
Flange standard: GB9113 JB/T79 , ANSI B16.5
Pressure temperature rating: GB9131, ANSI B16.34
Standard of welding ends: GB12224, ANSI16.25
Test standard: GB/T13927, JB/T9092-99, API598
Structure type: Fixed, Floating, Flexible, Straight-through, Three-way, Right angle
Operated type: Lever, Gear, Pneumatic, Electric
Gate Valve Series Nominal diameter: DN15~DN1200
Nominal pressure: PN0.25~16.0MPa
Design and MFG. standard: GB12234-89
Structure size standard: GB12221-89
Flange standard: JB/T79-94
Test standard: GB13927
Structure type: Wedge type, Flat type, Rising stem, The dark bar
Operated type: Handwheel, Bevel gear, Pneumatic, Electric
Globe Valve Series Nominal diameter: DN15~DN1500
Nominal pressure: PN1.6~16.0Mpa
Design and MFG. standard: GB12235
Structure size standard: GB12221
Flange standard: JB/T79 GB9113 HG20593-20635
Pressure temperature rating: GB9131 JB/T74 HG20604
Test standard: GB13927 JB/T9092
Structure type: Straight-through, Angle type, DC type
Operated type: Handwheel, Bevel gear, Pneumatic, Electric
Check Valve Series Nominal diameter: DN15~DN900
Nominal pressure: PN26.0~42.0MPa
Design and MFG. standard: ANSIB16.34, E101
Structure size standard: ASME B16.10 E101
Pressure temperature rating: ASME B16.34 E101
Test standard: API598 E101
Structure type: Regular pattern, Pressure sealed pattern, Damping pattern
Pressure Reducing Valve Series Nominal diameter: DN15~DN600
Nominal pressure: PN1.0~6.4MPa
Design and MFG. standard: GB/T 3656-1994
Structure size standard: GB/T 12221-2005
Pressure temperature rating: GB/T 12224-2005
Test standard: GB/T 13927-2008
Operated type: Manual, Worm gear, Pneumatic, Electric


Addnew Hydropower Limited designs, manufactures and supplies the proven-reliable-quality Hydropower Generating Equipment and Systems (Hydroelectric Generating Units) at the most reasonable prices for any new or existing Hydropower Stations:
> Hydro Turbines and their Governors (Manual or PID with PLC): Francis Turbine, Kaplan Turbine, Pelton Turbine, Tubular Turbine (Bulb, Pit, S-type), Inclined-jet Turbine;
> Horizontal Hydro Generators or Vertical Hydro Generators, Hydro Turbine Generators, Excitation Systems, etc.;
> Control Systems, Monitoring Systems, Protection Systems, Communication Systems, Automation Systems, etc.;
> Transformers, Switchgears, Regulators, Step-up or substation equipment and systems;
> Hydro Mechanic Equipment such as penstocks, speed adjusters, valves, sluice gates, cranes, trash-racks, etc.;
> Auxiliary equipment and systems such as watering or draining systems, air systems, oil systems, lubricating systems, fire protection systems, etc.;
> Electromechanical equipment and other electrical or mechanical equipment for hydropower plants;
> Installation, commissioning, test-run, maintenance, renovation, upgrading and other customized engineering services.


Every product, equipment, service and whole-system from ADDNEW will be specially designed and customized according to each customer's requirements and based on the conditions of each project site such as the head, flow and plant configuration. If you need us to design a techno-financial proposal for your project, please send us your specific requirements now, our sales engineers will contact you the soonest.