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China Suppliers Factory Wafer Butterfly Valve DN100 - Concentric Resilient Seated, PN6/PN10/PN16, OEM&ODM
| Valve Type: | Wafer butterfly valve | Structure: | Concentric |
| Standard: | EN593 | Workmanship: | Investment casting |
| Sealing direction: | Bidirectional | 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 Butterfly valves have the characteristics of simple structure, small volume, light weight, low material consumption, small installation size, fast switch, 90° reciprocating rotation, and small driving torque. They are used to cut off, connect, and regulate media in pipelines, and have good fluid control characteristics.
- 2 Butterfly valves can transport mud and accumulate the least amount of liquid at the pipeline outlet. Under low pressure, good sealing can be achieved. Good regulation performance.
- 3 The streamlined design of the butterfly plate reduces fluid resistance loss, making it an energy-saving product.
- 4 The valve stem is a through stem structure that has undergone quenching and tempering treatment, and has good comprehensive mechanical properties, corrosion resistance, and abrasion resistance. When the butterfly valve is opened and closed, the valve stem only rotates and does not move up or down. The packing of the valve stem is not easily damaged and the seal is reliable. Fixed with the butterfly plate cone pin, the extended end is designed to prevent the valve stem from bursting out in case of accidental breakage at the connection between the valve stem and the butterfly plate.
- 5 The connection methods include flange connection, clamp connection, butt welding connection, and lug clamp connection.
- 6 The driving forms include manual, worm gear transmission, electric, pneumatic, hydraulic, electro-hydraulic linkage and other actuating mechanisms, which can achieve remote control and automated operation.
📦 Packing
📚
Standard Export Wooden Case Packaging
🌏 Application Scenarios
The sealing surface is made of elastic materials such as nitrile rubber (NBR), ethylene propylene diene monomer (EPDM), and fluororubber (FKM), embedded around the valve body or butterfly plate, with excellent sealing performance and a leakage level of up to ANSI B16.104 Class VI (bubble level seal). It is suitable for room temperature and clean media (such as water, air, natural gas, and weakly corrosive fluids), with a temperature range of usually -20°C ~ 120°C.
? Frequently Asked Questions
Q
What is a wafer butterfly valve and how does it differ from a flange butterfly valve?
A wafer butterfly valve is clamped directly between two pipeline flanges using double-headed bolts, without an independent flange on the valve body itself. Compared to a flange butterfly valve, it has an axial length of only 1/2 to 1/3, a more compact radial size, and a weight reduction of 30%–60%, making it ideal for space-constrained installations.
Q
What sealing materials are used in this wafer butterfly valve?
The sealing surface uses elastic materials including nitrile rubber (NBR), ethylene propylene diene monomer (EPDM), and fluororubber (FKM). These materials provide excellent sealing performance with a leakage level reaching ANSI B16.104 Class VI (bubble level seal), ensuring zero leakage under normal operating conditions.
Q
What is the operating temperature range of this butterfly valve?
This wafer butterfly valve is designed for a temperature range of -20°C to 120°C, making it suitable for most standard industrial and commercial pipeline applications involving water, air, natural gas, and weakly corrosive fluids.
Q
What actuation and connection options are available for this valve?
The valve supports multiple connection methods including flange connection, clamp connection, butt welding connection, and lug clamp connection. For actuation, it supports manual (handle/lever), worm gear transmission, electric, pneumatic, hydraulic, and electro-hydraulic linkage mechanisms, enabling remote control and automated operation.
Q
What standard does this wafer butterfly valve comply with?
This wafer butterfly valve is manufactured in compliance with the EN593 standard, which is the European standard for industrial valves, specifically covering butterfly valves for general purpose industrial applications. The valve body is produced using investment casting workmanship for high dimensional accuracy and surface quality.
Q
How is the valve packaged for export and what protective measures are taken?
The wafer butterfly valve is packaged in a standard export wooden case designed to withstand long-distance international shipping conditions. The wooden case packaging provides robust protection against impact, moisture, and vibration, ensuring the valve arrives in perfect condition regardless of shipping destination.