Uni-directional Butterfly Valve, GOST, A216 WCB, DN800, PN16

Key Specifications / Features

Model no.: JSC-240919-EBV-01
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This uni-directional butterfly valve, manufactured to GOST standards, is constructed from ASTM A216 WCB material. It has a size of DN800 (32 inches) and is rated PN16/Class 150 LB. Featuring a triple eccentric design, bare stem, and wafer ends, it provides reliable sealing and efficient flow control, making it ideal for large-scale industrial applications.
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Detail Information

Triple Eccentric Butterfly Valve

Product Description: Butterfly valve, triple eccentric, three offset, metal laminate seat, uni-directional, bare stem, wafer

Product Name: Triple Eccentric Butterfly Valve
Nominal Diameter: 32 Inch, DN800
Nominal Class: Class 150 LB, PN16
Design Standard: GOST Standard
Body Material: ASTM A216 WCB
Disc Material: ASTM A216 WCB
End Connection: Wafer
Metal Seat: SS 304+Graphite
Face to Face: ISO 5752
Flange End: GOST 12815
Mode of Operation: Bare Stem
Test and Inspection: EN 12266

The three-eccentric laminate hard seal flange butterfly valve is a long-lasting, energy-efficient valve designed with a three-dimensional core principle. It features a laminate stainless steel and graphite valve seat that combines hard and soft sealing for enhanced performance. The valve comprises essential components including the valve body, butterfly disc, laminate seal, valve stem, and transmission mechanism. Its advanced design and technology make it suitable for a wide range of applications, including metallurgy, power generation, petroleum, chemicals, air, gas, combustible gases, and water supply and drainage pipelines.

Triple Eccentric Butterfly Valve – Three Distinct Eccentricities

The triple eccentric butterfly valve is characterized by three distinct eccentricities:

First Eccentricity: The shaft is offset from the centerline of the sealing face.
Second Eccentricity: The shaft is offset from the centerline of the pipe and valve.
Third Eccentricity: There is a notable included angle between the oblique taper of the eccentric seat and the centerline of the pipe.

This design ensures that the seat is completely disengaged from the sealing ring throughout the entire opening and closing process. The triple eccentric structure not only leverages the cam effect but also effectively prevents abrasion and leakage.

Triple Eccentric Butterfly Valve Three Eccentricities


Key Features of Triple Eccentric Butterfly Valve
 
Elastic Composite Metal Sealing Ring: Provides excellent elasticity, ensuring zero leakage performance.
Torque Seal: Guarantees bi-directional zero leakage.
STL Hard Surface Seat: A one-piece hard surface seat that adapts to various working conditions, offering long service life and easy maintenance.
One-Piece Cast Body: Face-to-face dimensions conform to ISO 5752, ASME B16.10, and API 609 standards, allowing for easy replacement of high-performance butterfly valves and other valve types. Installation is simple and flexible.
Intrinsic Fireproof Property: All-metal construction ensures fireproof reliability with leak-tight performance.
Anti-Blowout Stem: Provides high dependability and fully complies with API 609 standards.
Stem and Disc Connection: The stem is a shaft, and the disc is connected via a key or pin-key combination for secure assembly.
 
High Temperature Triple Eccentric Butterfly Valve-Specifications and Materials
 
1. Design: API 609, ASME B16.34, AWWA C504, BS EN 593
2. Face to Face: API 609, AWWA C504, BS 2080, and ISO 5752
3. Flange End: ASME B16.5, ASME B16.47, BS EN 1092, ISO 7005, GOST
4. Inspection Test: API 598, BS EN 12266, ISO 528
5. Body Materials: Carbon Steel ASTM A216 WCB, WCC, Low Temperature Carbon Steel ASTM A352 LCB, LCC, LC1, LC2; Alloy Steel Chrome Moly ASTM A217 WC6, C5, WC5, C12, C12A, WC9, 1.7335, 1.7380, 1.7362, 1.7386, 1.4903; Stainless Steel ASTM A351 CF3, CF8, CF3M, CF8M, A351 CF8C, 1.4301, 1.4306, 1.4401, 1.4404, 1.4550, 1.4438; Alloy 20, ASTM A351 CN7M, N08020, 1.4438; Duplex Steel 2205, ASTM A351 CD3MN, A890 2205, S31803, 1.4462; Super Duplex Stainless Steel ASTM A351 CD4MCu, A890 5A, S32750, 1.4501; Super Duplex F55, ASTM A995 CD3MWCuN, S32760
6. Disc Materials: ASTM A216 WCB, WCC, ASTM A352 LCB, ASTM A351 CF8M, CF3M, CF8, CF3, ASTM A890 4A, 5A, ALLOY 20, Duplex Stainless Steel, Monel, Hastelloy Steel
7. Seat Materials: SS 304 + Graphite, SS 316 + Graphite, PTFE
8. Pressure Range: PN10, PN16, PN25, PN40, PN63, PN100, 150 LB, 300 LB, 600 LB, 900 LB (PN10-PN100, Class 150-900 LB)
9. Size Range: DN50-DN3200, 2 Inch - 128 Inch
10. Drive Mode: Manual/Worm gear/Electric/Pneumatic
11. Field of Application: Electric /Hydraulic/Municipal Engineering etc; Water/Sea water/Gas etc.
 
 
 
 
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