Wholesale Adjustable type hydraulic cylinder operated butterfly valve Manufacturers, Factory
Product Description
Technical Specifications
| Valve Type: | Eccentric butterfly valve | Structure: | Eccentric |
| Standard: | EN/DIN/API | Workmanship: | Investment casting |
| Sealing direction: | Single-directional | Sealing grade: | Zero leakage |
| Temperature: | -20°C < T < 120°C | Operation: | Hydraulic control |
Characteristics
The oil cylinder control butterfly valve with eccentric structure design greatly reduces friction on the sealing surface during opening and closing, with the advantages of wear resistance, cavitation resistance and bidirectional zero leakage, significantly extending the service life of the valve. At the same time, it has strong hydraulic driving force, suitable for large-diameter and high differential pressure working conditions, and can easily realize opening and closing operations. It can also be connected to the PLC/DCS automatic control system, supporting remote linkage and local manual dual operation modes.
Advantages
1. Precise Adjustment & High Efficiency: The hydraulic control adjustable butterfly valve takes the hydraulic control system as the core, combined with a precise adjustment mechanism and an optimized disc design, which has multiple advantages of reliable control, flexible adaptation and high efficiency and energy saving.
2. Wide Adaptability & Zero Waste: The core advantages of hydraulic valve are concentrated in high adjustment accuracy and strong working condition adaptability. According to on-site process requirements, it can accurately adjust the medium flow and pressure, realize stepless adjustment from fully open to fully closed, adapt to the pipeline operation needs under different loads, and effectively avoid medium waste and system energy consumption loss.
3. Durable & Low Maintenance: The hydraulic butterfly valve adopts a hydraulic drive mode, with strong driving force and stable operation, no impact and no noise during opening and closing. Combined with a double-eccentric or triple-eccentric structure design, it greatly reduces the friction of the sealing surface, has the characteristics of wear resistance, cavitation resistance and bidirectional zero leakage, significantly extends the service life of the valve, and reduces the frequency and cost of later maintenance.
Material Specifications
| Body | ASTM A216 Gr. WCB |
| Disc | ASTM A216 Gr. WCB |
| Disc seal ring | EPDM |
| Seat (Surfacing) | 304 |
| Upper shaft | ASTM A276 Gr. 420 |
| Lower shaft | ASTM A276 Gr. 420 |
| Pin | ASTM A276 Gr. 420 |
| Retaining ring | SS304 |
| Screw | SS304 |
| Bushing | SF-1 |
| Yoke | ASTM A216 Gr. WCB |
Dimension
Packing
Standard export wooden case packaging
Application Scenarios
The adjusted hydraulic eccentric butterfly valves are widely applicable to power stations, water conservancy, pump stations, petrochemical and other fields.
Frequently Asked Questions (FAQ)
Q: What manufacturing standards do these eccentric butterfly valves follow?
Our eccentric butterfly valves comply with EN, DIN, and API international standards, manufactured through precision investment casting processes.
Q: What is the operating temperature range and sealing performance?
The valve is designed for operating temperatures between -20°C and 120°C (-20°C<T<120°C). It offers single-directional sealing with a certified zero-leakage grade.
Q: How does the hydraulic control system benefit large-diameter applications?
The strong hydraulic driving force ensures stable and smooth operation without impact or noise, making it ideal for large-diameter and high differential pressure conditions.
Q: Can this valve be integrated into automated industrial systems?
Yes, it can easily connect to PLC/DCS automatic control systems, supporting dual operation modes including remote linkage and local manual control.
Q: What materials are used for key valve components?
The body and disc are made of ASTM A216 Gr. WCB. The shafts are ASTM A276 Gr. 420, the seat surfacing is 304 stainless steel, and the disc seal ring is EPDM.
Q: How is the product packed for international transport?
All valves are packed in standard export wooden cases to protect against damage during long-distance maritime or air shipping.
