D71X Manual Wafer-Type Soft-Sealed Butterfly Valve

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Centerline Butterfly Valve

It can be customized to meet various requirements: clean water, sewage, seawater, industrial wastewater, other corrosive liquids, oil, and steam (at temperatures not exceeding 80°C).

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I. Product Features (Customizable to Meet Diverse Needs)
1. Reliable sealing performance
It employs a soft-seal design, with the sealing ring tightly fitted to the valve seat, ensuring bidirectional sealing performance and making it suitable for applications with stringent sealing requirements.
The sealing ring is replaceable, making maintenance easy; the seal can be changed without dismantling the entire valve, thereby reducing maintenance costs.
2. Easy to operate
Manual operation: the butterfly disc requires only a 90° rotation to fully open or close, offering simple operation and rapid response, making it suitable for applications involving frequent cycling.
3. Compact structure
Compact in size, lightweight, and easy to install and carry, it is particularly well suited for installation environments with limited space.
4. Wide range of applications
Suitable for a wide range of media, including water, sewage, seawater, and industrial wastewater, with a temperature range of -10°C to 80°C.
5. High durability
The valve body and butterfly disc are manufactured from high-strength materials, offering excellent corrosion and wear resistance to extend the valve’s service life.
6. Double-sided sealing
It can withstand pressure from both directions and is suitable for piping systems requiring bidirectional sealing.

II. Use Cases
1. Municipal Water Supply and Drainage System
2. Industrial Piping Systems
3. Water Treatment System
4. Energy System
5. Ship Systems

III. Applicable Media
Clean water, sewage, seawater, industrial wastewater, other corrosive liquids, oil, and steam (at temperatures not exceeding 80°C)

IV. Temperature Range
Operating temperature range: -10°C to 80°C

V. Material
1. Valve body materials: ductile cast iron (GGG45), carbon steel (WCB), aluminum bronze, stainless steel, etc.
2. Valve disc material: ductile cast iron, stainless steel, etc.
3. Valve stem material: stainless steel, etc.
4. Sealing materials: nitrile rubber (NBR), ethylene propylene diene monomer rubber (EPDM), fluoroelastomer (FPM), and others.
5. Packing material: flexible graphite, etc.

VI. Implementation Standards
1. Design and Manufacturing Standards
GB/T 12238-2008
EN 593-1:2002
API 609
2. Flange Connection Standards
GB/T 9124
EN 1092-1:2001
ANSI B16.5
3. Structural Length Standard
GB/T 12221-2005
EN 593-1:2002
4. Pressure Test Standards
GB/T 13927
EN 12266-1:2004
API 598