The Neles R Series segmented ball valve is an industrial valve designed specifically for on-off isolation applications. Available in flanged and wafer-body configurations, the valve covers sizes from DN 100 to 800, provides exceptionally high flow capacity, and features proven on-off valve seat technology. With a maximum operating temperature of 425 °C, it is particularly suitable for shutoff and isolation of fiber-containing fluid pipelines in pulp and paper processes.
Neles R Series segmented ball valve for on-off applications
Neles
Neles R Series Segmented Ball Valve for On-Off Applications
Segmented ball valve for isolation of fiber-containing pulp, available with metal or soft seats.
- Category
- Segment Valves
- Pressure rating
- PN 10 - 40 / ASME Class 150 - 300
- Size range
- DN 100 - 800 / 4" - 32"
Specifications
- Body configuration
- Flanged, wafer
- Pressure rating
- PN 10 - 40 / ASME Class 150 - 300
- Size range
- DN 100 - 800 / 4" - 32"
- Operating temperature range
- -50 to +425 °C / -58 to +797 °F
- Face-to-face dimension standards
- IEC 60534-3-2 / ISA 75.08.02 or IEC 60534-3-1
- Seat type
- Metal seat, soft seat
- Leakage class
- Metal seat conforms to ISO 5208 Rate D; soft seat conforms to Rate C
- Media suitability
- Suitable for fiber-containing fluids
Application scenarios
Isolation of fiber-containing pulp pipelines in pulp and paper processes
Used for on-off isolation of fiber-containing fluid pipelines in pulp and paper processes. The product is suitable for fiber-containing fluids, provides high flow capacity, incorporates proven on-off valve seat technology, and can be configured with a cylinder actuator or manual actuator.
Selection points
Segmented ball valve design with high flow capacity
The segmented ball valve design combines on-off valve seat technology with high flow capacity, making it suitable for on-off and isolation applications.
Compatibility with fiber-containing fluids
Suitable for fiber-containing fluids and can be used as a media compatibility reference when selecting valves for related industrial processes.
Flanged and flangeless configurations with multiple face-to-face dimension standards
Available with flanged and flangeless valve body configurations. Face-to-face dimensions comply with IEC 60534-3-2, ISA 75.08.02 or IEC 60534-3-1, supporting selection based on pipeline interfaces and installation conditions.
Metal and soft seat configurations
Available with either a metal seat or soft seat. The metal seat has a tightness class conforming to ISO 5208 Rate D, while the soft seat conforms to Rate C.
Installation notes
Verify that the valve configuration matches the piping connection conditions
Before installation, verify whether the valve has a flanged or wafer body configuration, and confirm that the piping connection conditions and face-to-face dimensions match those of the valve supplied. Ensure that the valve body and piping are properly aligned to prevent connection leakage or restricted valve operation.
FAQ
What on-off isolation services are suitable for the Neles R Series segmented ball valve?
The Neles R Series is designed for on-off isolation applications. Combining the material efficiency of control valve design with the high flow capacity of Neles on-off valve seat technology, it is suitable for demanding services and fiber-containing fluids. The specific configuration must be confirmed based on the actual model and application conditions.
What is the difference between the sealing performance of metal and soft seats in the Neles R Series?
The standard metal seat configuration in this series conforms to the ISO 5208 Rate D leakage class. For services requiring very high tightness, a soft seat configuration is available and conforms to ISO 5208 Rate C. The seat type should be selected based on the medium, temperature, and isolation requirements.
What are the pressure, temperature, and size ranges of the Neles R Series segmented ball valve?
The valve body pressure ratings cover PN 10 to PN 40 and ASME Class 150 to Class 300. The size range is DN 100 to DN 800, or 4 inches to 32 inches. The temperature range is -50 to +425 °C. Actual selection must also confirm compatibility between the pressure rating, body configuration, and service conditions.
What actuation and control options are available for the Neles R Series?
Standard products can be equipped with pneumatic cylinder actuators or manual actuators, and intelligent on-off valve controllers can be configured for reliable isolation operation. The actuator and control configuration must be selected based on the site operating method and automation requirements.
How should connection dimensions be verified when installing the Neles R Series segmented ball valve?
The series is available with flanged and wafer body configurations, with face-to-face dimensions conforming to IEC 60534-3-2, ISA 75.08.02, or IEC 60534-3-1. Before installation, verify the body configuration of the actual model, pipeline flange conditions, face-to-face dimensions, and available actuator installation space.