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Home > Butterfly Valve > Wholesale Big size WCB triple offset high performance flange butterfly valve Suppliers, Factory
Wholesale Big size WCB triple offset high performance flange butterfly valve Suppliers, Factory
Wholesale Big size WCB triple offset high performance flange butterfly valve Suppliers, Factory
Wholesale Big size WCB triple offset high performance flange butterfly valve Suppliers, Factory
Wholesale Big size WCB triple offset high performance flange butterfly valve Suppliers, Factory
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Wholesale Big size WCB triple offset high performance flange butterfly valve Suppliers, Factory
Wholesale Big size WCB triple offset high performance flange butterfly valve Suppliers, Factory
Wholesale Big size WCB triple offset high performance flange butterfly valve Suppliers, Factory
Wholesale Big size WCB triple offset high performance flange butterfly valve Suppliers, Factory

Wholesale Big size WCB triple offset high performance flange butterfly valve Suppliers, Factory

Type：Triple Eccentric

Series：D43H-150LB

Size: DN40-DN600/2”-24”

Pressure rating: PN6/PN10/PN16/5K/10K/150LB/300LB/600LB

Design standard: API/EN/JIS

Service: OEM&ODM

The large-size flanged triple eccentric butterfly valve adopts reinforced overall structure and metal hard sealing, its triple eccentric design realizes friction-free opening & closing, effectively lowers operating torque for big bore, achieves bidirectional zero leakage; flanged connection improves pipeline mounting stability against large flow shock, excellent resistance to high temperature, high pressure and particle medium abrasion, available for both shut-off and flow regulation.

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Product Description

Technical Parameters

Valve Type: Flange butterfly valve Structure: Eccentric
Standard: API/EN/JIS Workmanship: Investment casting
Sealing direction: Bidirectional Sealing grade: Zero leakage
Temperature: -190°C < T < 700°C Operation: Handle
Flange butterfly valve diagram

Product Characteristics

The large-size flanged triple eccentric butterfly valve features reinforced thick body and triple-offset metal hard seal. It boasts outstanding deformation resistance and self-tightening bidirectional bubble-tight shutoff. With full bore low-resistance flow path and stable flanged connection, it matches various heavy-duty actuators and serves high-temperature large-flow main pipelines in heating, power, metallurgy, environmental protection and petrochemical industries.
Triple eccentric structure

Core Advantages

✔
Large Flow & Low Resistance:
The large butterfly valve with smooth straight flow path provides large flow coefficient and minimal pressure drop, ideal for main pipeline high-flow continuous operation.
✔
Stable Sealing Under Large Pressure Difference:
Triple-offset flanged butterfly valve with metal hard seal achieves friction-free operation and self-tightening sealing, ensuring bidirectional zero leakage under strong flushing and large differential pressure.
✔
Firm Flange Connection:
Full flanged structure with uniform bolt force distribution provides high stability and vibration resistance for long-term main pipeline service.
✔
Compatible with Heavy-duty Actuators:
Optimized torque structure matches large electric, pneumatic and worm gear actuators, realizing smooth and stable opening and closing.

Packing & Delivery

Standard export wooden case packaging ensures the safety of products during long-distance transportation.
Standard export wooden case packing

Application Scenarios

The large size metal to metal flanged butterfly valve is extensively installed on large-bore main pipelines of municipal heating steam network, power plant flue gas & circulating water system, metallurgical hot air pipeline, desulfurization exhaust duct and petrochemical thermal oil & process gas piping.
Application 1
Application 2
Application 3

Material Specifications

Part Name Material
Valve bodyWCB, QT450-10, Q235, Alloy steel, stainless steel, etc.
Valve stemAlloy steel, stainless steel
Seal ringStainless steel composite multi-level
PackingFlexible graphite or stuffing
Valve seatStainless steel, cobalt based hard alloy
Valve stemStainless steel

Dimensions

Dimension Diagram
PN (MPa)DN (mm)LDD1D2Z-ΦdbfHH0AB
1.01501402852402118-Φ2224238523066150
2001523402952668-Φ2224247129785170
25016539535031912-Φ2226253332785170
30017844540037012-Φ22262606364106205
40021656551548016-Φ26262757444130240
60026778072558220-Φ303051048590198324
1.61501402852402118-Φ2224238523066150
2001523402952668-Φ2224247129785170
30017844540037012-Φ22322606364106205
40021656551548016-Φ26362757444130240
50022967062058220-Φ26422902522169306
60026778072558220-Φ304451048590198324

Frequently Asked Questions

Q1: What is a triple eccentric butterfly valve?
A1: It is a high-performance valve with three offsets that eliminate friction between the seat and seal ring during operation, ensuring long life and tight sealing.
Q2: Can this valve achieve zero leakage?
A2: Yes, the metal-to-metal triple offset design provides a bidirectional bubble-tight shutoff, meeting zero leakage standards even under high pressure.
Q3: What are the temperature limits for this valve?
A3: This valve is designed for extreme conditions, operating reliably in temperatures ranging from -190°C up to 700°C.
Q4: What types of actuators can be used?
A4: It is highly compatible with manual handles, worm gears, pneumatic actuators, and electric actuators for automated systems.
Q5: In which industries is this valve most commonly used?
A5: It is widely used in municipal heating, power plants, metallurgical pipelines, petrochemical gas piping, and environmental protection systems.
Q6: Does the valve support bidirectional flow?
A6: Yes, its structure is optimized for bidirectional sealing, making it ideal for complex pipeline configurations.

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