Description
Overview of KNKE Ultra-High Temperature Butterfly Valve
The KNKE Ultra-High Temperature Butterfly Valve handles extreme temperatures, making it ideal for high-temperature gas pipelines. It operates reliably in industries like metallurgy, cement, chemicals, and power generation. The valve can withstand continuous temperatures of 1200°C and brief spikes up to 1600°C.
Manufactured using lightweight yet durable materials, including duplex stainless steel and high-temperature alloys, it features a seal made from high-temperature casting materials or ceramic fibers. These materials prevent deformation and ensure a long lifespan. The valve’s stem connection is reinforced to minimize heat damage. Extended stems with heat-dissipating fins further protect the valve from high temperatures.
This valve is perfect for controlling high-temperature gases such as flue gas, exhaust, tail gas, and air in various industrial processes. It pairs with manual, pneumatic, and electric actuators for easy integration into existing systems.
Applications of the KNKE Ultra-High Temperature Butterfly Valve
- Industries: Metallurgy, Cement, Chemical, Power Generation, Glass Manufacturing
- Applications: High-temperature gas pipelines, flue gas control, exhaust systems, tail gas management, air and smoke handling, dust removal, and fly ash transportation.
- Additional Uses: Suitable for industrial furnaces, desulfurization, denitrification systems, waste heat recovery power generation, VOC emissions treatment, and more.
Key Features of KNKE Ultra-High Temperature Butterfly Valve
- High-Temperature Resistance: The valve’s sealing surfaces and butterfly seals remain unaffected by thermal stress, ensuring fire safety.
- Smooth Operation: The butterfly seal smoothly detaches from the valve seat without friction, which is perfect for frequent cycling applications.
- Elastic Sealing: Under torque, the valve ensures tight contact between the butterfly and the valve seat. This guarantees bi-directional zero-leakage performance.
- Pressure Sealing and Cam Mechanism: Even after prolonged closure, the valve won’t experience sticking when restarted. It can regulate flow, cut off media, and maintain a bi-directional seal.
- Actuator Compatibility: The valve works with various actuators (manual, pneumatic, electric), offering flexibility for different operational conditions.
Technical Parameters
Parameter | Value |
Product Name | Ultra-High Temperature Butterfly Valve |
Product Model | NCBSV-63 Series |
Nominal Diameter | DN50 to DN4000 |
ANSI Nominal Diameter | 2” to 48” |
Sealing Material | High-Temperature Casting Material, Ceramic Fiber, Duplex Stainless Steel, High-Temperature Alloys |
Nominal Pressure | 0.1 MPa to 2.5 MPa |
Connection Type | Lugged, Flanged |
Temperature Range | -40°C to +1200°C |
Function | On/Off, Flow Control |
Actuation Method | Manual, Pneumatic, Electric |
Body Material | Carbon Steel, Stainless Steel, High-Temperature Alloys, Custom Materials Available |
Structure | Single Offset, Double Offset, Triple Offset |
Applicable Media | High-Temperature Smoke, Exhaust Gases, Tail Gas, Air, Dust-laden Gases |
Applicable Areas | Industrial Furnaces, Desulfurization, Denitrification, Waste Heat Recovery Power Generation, VOC, Dust Removal, Ash Transport |
Design and Manufacturing Standards
- Design Basis: GB, API
- Design and Manufacturing Standards: JB/T10529-2005, GB/T12237-2007, API608-2012
- Structural Length Standards: GB/T12221-2005, ASME B16.10-2009
- Connection Design Standards: GB/T9113-2010, ASME B16.5-2013
- Drive Device Standards: GB/T12223-2005, BS EN ISO 5211-2001
- Material Standards: GB/T12228-2006, NB/T47010-2010, ASTM A105/A105M-2014, ASTM A182/A182M-2015
- Inspection and Testing Standards: JB/T 9092-1999, API 598-2009
Materials Selection Table
Part | Material |
Valve Body | A105, WCB, SS304, SS316, CF8, CF8M, CF3, CF3M |
Valve Core | Duplex Stainless Steel, High-Temperature Alloys |
Valve Stem/ Shaft/ Packing Seat | 17-4PH, 316L, Alloy Materials |
Sealing Components | VMQ, FKM, PTFE |
Packing | PTFE, RPTFE, Graphite |
Pressure Plate/ Support | CF8, WCB |
Bolts/ Gaskets | A193-B7/A194-2H/SS304 |