The Neles BN Series full-bore butterfly valves are designed for industrial gas and oxygen service and feature BAM certification for oxygen applications. The series is available with flanged, lug-style, and wafer-style connections, with optional Monel and AlBr bodies. The valves are equipped with low-emission packing and provide bidirectional, bubble-tight soft sealing to EN12266 Class A. They are suitable for temperatures up to +260 °C, pressure ratings of PN 10-40 or ASME 150-300, and pipeline sizes from DN 80-1600. Typical applications include tight shutoff and flow control in oxygen and industrial gas process pipelines.
Neles BN Series butterfly valve
Neles
Neles BN Series Full-Bore Butterfly Valves for Industrial Gas and Oxygen Service
Full-port butterfly valves for industrial gas isolation and control, available with flanged connections.
- Category
- Butterfly Valves
- Pressure Rating
- PN 10 - 40 / ASME Class 150 - 300
- Nominal Size Range
- DN 80 - 1600 / 3" - 64"
Specifications
- Valve Type
- Full-port butterfly valve
- Connection Type
- Flanged, lugged, wafer
- Pressure Rating
- PN 10 - 40 / ASME Class 150 - 300
- Nominal Size Range
- DN 80 - 1600 / 3" - 64"
- Maximum Operating Temperature
- Up to +260 °C / +500 °F
- Sealing Type
- Bidirectional soft sealing compliant with EN12266 Class A for bubble-tight shutoff
- Valve Body Material Options
- Monel, AlBr
- Packing Characteristics
- Low-emission packing design
- Oxygen Service Certification
- BAM certification
Application scenarios
Isolation and Control in Oxygen Process Pipelines
For industrial gas pipelines requiring oxygen service certification and reliable isolation or flow control. The BN Series has BAM certification for oxygen service and uses bidirectional soft sealing for bubble-tight shutoff.
Tight Isolation and Flow Control in Industrial Gas Pipelines
For isolation or control duties in industrial gas pipelines. The BN Series is designed for industrial gas applications, with a full-port design that provides high flow capacity and bidirectional soft sealing compliant with EN12266 Class A for bubble-tight shutoff.
Selection points
Oxygen Service Certification, Low-Emission Packing, and Special Material Options
Offers BAM certification for oxygen service, a low-emission packing design, and Monel and aluminum bronze (AlBr) valve body options for industrial gas applications requiring oxygen service certification, emission control, or material compatibility.
Bidirectional Soft Sealing Compliant with EN12266 Class A
Uses an eccentric soft seat and bidirectional soft sealing compliant with EN12266 Class A to achieve bubble-tight shutoff.
Full Port and High Flow Capacity
The full-port butterfly valve provides excellent flow characteristics and is suitable for both isolation and control applications.
Multiple Pipeline Connection Options
Available with flanged, lugged, and wafer connections to support selection based on pipeline interface requirements.
Installation notes
Use a BAM-certified configuration for oxygen service
For oxygen service, confirm that the Neles BN Series butterfly valve supplied is certified by BAM for oxygen applications.
Verify the service medium, temperature, and pressure conditions
Before installation and commissioning, verify that the actual service medium, temperature, and pressure conditions are within the valve's applicable range and rated parameters.
FAQ
What sealing design is used in Neles BN Series butterfly valves, and are they suitable for gas service requiring a high level of shutoff tightness?
The Neles BN Series uses an eccentric soft seat and a bidirectional soft-sealing design that complies with EN12266 Class A requirements for bubble-tight shutoff. The series is intended for industrial gas applications and is also suitable for services requiring reliable bidirectional isolation. The specific configuration must be confirmed based on the actual model and application conditions.
Are BN Series butterfly valves suitable for shutoff, control, or both?
The BN Series is suitable both for reliable shutoff in industrial gas pipelines and for control applications. Its two-piece stem design helps provide high flow capacity and favorable flow characteristics. When selected for throttling service, the specific model should be confirmed based on the pipe size, pressure rating, medium, and control requirements.
How should I select a Neles BN Series butterfly valve based on pipe size and pressure rating?
The BN Series covers sizes from DN 80-1600 (3-64 inches), with body pressure ratings ranging from PN 10-40 and ASME Class 150-300. The valve body is available in flanged, lug-style, or wafer-style designs. Selection should be based on the applicable pipe standard, connection type, nominal size, design pressure, service temperature, medium, and required function.
What industries and media are Neles BN Series butterfly valves suitable for?
The series is specifically designed for industrial gas applications and can be used in air separation units and the industrial gas and chemical industries. For oxygen service, a BAM-certified configuration is available. The specific configuration must be confirmed based on the actual model and application conditions.
What features does the BN Series offer for replacement installation and field maintenance?
The BN Series uses a simplified one-piece body design that facilitates maintenance and allows work to be completed in the field. For retrofit projects replacing existing gate valves or other equipment, special face-to-face dimensions can be provided. Flanged, lug-style, or wafer-style body configurations can also be selected based on the application. Before installation, verify the pipeline interfaces, face-to-face dimensions, and actual service requirements.