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Wholesale Eccentric type hydraulic control butterfly valve PN16 EPDM sealing Supplier, Factory
Product Description
Product 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: | Handle/Lever |
Characteristics
Wafer type connection with minimal space occupation. The valve body does not have an independent flange and is directly clamped between two pipeline flanges using double headed bolts. Its axial length is only 1/2~1/3 of that of a flange butterfly valve, and its radial size is compact, reducing weight by 30%~60%. It is particularly suitable for narrow installation environments such as dense pipelines, equipment rooms, and underground pipelines, while reducing labor/equipment costs for handling and installation.
Advantages
1. Accurate regulation and stepless flow control
The eccentric butterfly valve’s hydraulic drive+adjustable stroke, precise control of medium flow/pressure, stable throttling and stabilization, suitable for fine working conditions.
2. Waterproof hammer and slow closing protective pipe network
The control box can set fast and slow closing, segmented closing, flexible opening and closing, eliminate water hammer impact, and protect pipelines, pumps, and equipment.
3. Small opening and closing torque, wear-resistant and durable
Eccentric structure (conventional combination) opens and disengages immediately, with low friction on the sealing surface, resistance to cavitation and impurities, and long service life.
Packing
Standard export wooden case packaging
Application Scenarios
The adjusted hydraulic eccentric butterfly valves are widely used for working conditions with large caliber, medium high pressure, and the need to eliminate water hammer.
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 |
Dimensions
Frequently Asked Questions (FAQ)
Q1: What standard and manufacturing workmanship are used for this eccentric butterfly valve?
The valve complies with EN/DIN/API international standards and is produced using precise investment casting workmanship to ensure superior structure and reliability.
Q2: How does the wafer type design save space and costs?
The wafer type connection features a compact radial size and an axial length only 1/2 to 1/3 of a flanged butterfly valve, reducing total weight by 30% to 60%. This design simplifies installation in narrow spaces and lowers overall handling and labor costs.
Q3: How does the valve eliminate water hammer impact?
Through configurable fast, slow, and segmented closing settings via the control box, the valve manages flexible opening and closing to effectively eliminate water hammer impact and safeguard connected pipelines, pumps, and equipment.
Q4: What is the operating temperature range for this product?
The working temperature range for this eccentric butterfly valve is between -20°C and 120°C (-20°C < T < 120°C).
Q5: What materials are used for the main body and disc?
Both the valve body and disc are fabricated from high-grade ASTM A216 Gr. WCB carbon steel with EPDM seal rings and SS304 components for enhanced durability.
Q6: What packaging is provided for shipping?
All products are packed using standard export wooden cases to ensure safe protection during international transit.
