Hydraulic counter weight butterfly valve
- DESIGN STANDARD: DIN/AWWA
- SIZE: DN200~ DN4000
- PTRESSURE: PN6 / PN10 / PN16 / PN25 / PN40
- TEMP: ≤80℃
- MEDIUM: fresh water, sea water, sand water, oil etc.
- BODY STRUCTURE: three eccentric metal sealing or double eccentric rubber sealing
- Materials:
Body: Carbon Steel /Grey Cast Iron/Ductile Iron
Disc: Carbon Steel /Grey Cast Iron/Ductile Iron
SEAT: EPDM / SS
Open/close parameters
| DN | <1000 | >=1000 | |
| Valve open time | 10~60s | 20~120s | |
| Valve close time | Rapid closed | 1.5~15s | 2.5~30s |
| Slow closed | 2.5~60s | 6~90s | |
| Valve close degree | Quick closed | 75°±10° | 75°±10° |
| Slow closed | 15°±10° | 15°±10° | |
Note: Special requirement is available under request.
Aftersale Service
For decades, based on our extensive know-how and continuous innovation of products and solutions, we are driven to fulfill this commitment to all our current and future customers.
Our Quality Control Engineers strictly monitor the production at every stage, to ensure a consistently high level of quality, we offer 12 months quality gurantee for each project.
Our 24/7 assistance, customized to any site or remote needs, ensures every client get our satisfactory response.
Installation supervision involves the mechanical and electrical setup of the valve. Commissioning focuses on system integration and testing. We can also provide paid services when necessary.
Troubleshooting is a form of problem solving, kindly pls offer the photos, videos and the operation steps to us, our service department will check and give support asap.
Our service engineer will train the clients’ operator step by step according to the product manual procedures and maintenance steps etc.
We guarantee to supply high-quality and reliable original parts asap by international courier or by air.
Resource
In order to shorten the communication time ,here attached a company catalog file . You can check our factory information, production lines etc
This is our company’s quality assurance and control process, which confirms that our products are traceable, product quality is controllable, and customer service is satisfactory.
This is our company’s promotional video, which vividly introduces various aspects of the company.
Zhengzhou Pump Valve is top 10 leading manufacturer and solution provider of industrial valves in China founded in 1995, mainly used in power plants, dams ,oil & gas, metallurgy, petrochemical, water treatment etc.
The company boasts a production area of over 30,000 square meters, equipped with advanced facilities, including large CNC vertical lathes and supporting equipment for external processing.
As one of the first batch of national high-tech enterprises certified in 2008 and recognized as a “Specialized, Refined, Distinctive, and Innovative” factory in Zhejiang Province, the company has obtained the TS certification (A1) for special equipment production. The “Zhengzhou Hydraulic Valve Provincial R&D Center” has secured multiple national intellectual property authorizations, with over 10 projects included in the National Torch Program, the Ministry of Science and Technology’s Innovation Fund, and other provincial-level science and technology plans. The company has participated in drafting 6 JB/T industry standards for valves and hydraulic drive devices and is capable of designing and manufacturing special-purpose valves.
Notably, the DN4500/PN10 double-seal turbine inlet valve complete equipment has been successfully applied in the Mid-Mota Hydropower Station in Nepal, earning high praise from customers.
For more information, kindly pls contact us for details.