Popular Design for Spring Full Bore Type Safety Valve (W Series) - Hydraulic three-way valve for water supply of high-pressure heater – Convista
Popular Design for Spring Full Bore Type Safety Valve (W Series) - Hydraulic three-way valve for water supply of high-pressure heater – Convista Detail:
| Type | Three-way Valve |
| Model | F763Y-2500LB, F763Y-320, F763Y-420 |
| Nominal Diameter | DN 350-650 |
During normal operation of high-pressure heater of 600 to 1,000MW supercritical (ultra-supercritical) thermal power unit, the main route of the three-way valve at high pressure heater inlet is opened and the bypass is closed. Water supply of the boiler enters the high-pressure heater from the main route before entering the boiler through the three-way valve at high pressure heater outlet.
- The valve body and bonnet adopt fully forged steel structure.
- Sealing type of the valve body and bonnet adopts pressure self-sealing structure.
- Top of the valve bonnet has water injection and drainage holes and the piston is built in the valve bonnet.
- Sealing surfaces of the valve seat and disc adopt Stellite No. 6 alloy spray welding.
- The bypass sealing adopts the sealing structure integrating modified PTFE elastic energy storage ring and perfluoro O-ring.
- The throttle elements in inlet three-way valve bypass and the upper valve seat adopt integrated design and require no additional throttle orifice separately.
Product detail pictures:

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To continually enhance the management technique by virtue of your rule of "sincerely, great faith and high-quality are the base of company development", we widely absorb the essence of similar merchandise internationally, and continuously build new merchandise to meet the demands of customers for Popular Design for Spring Full Bore Type Safety Valve (W Series) - Hydraulic three-way valve for water supply of high-pressure heater – Convista, The product will supply to all over the world, such as: Brunei, Kenya, Portugal, We always insist on the management tenet of "Quality is First, Technology is Basis, Honesty and Innovation".We are able to develop new products continuously to a higher level to satisfy different needs of customers.
The factory technical staff gave us a lot of good advice in the cooperation process, this is very good, we are very grateful.





