The Neles R series segment ball valves are designed for isolation service and are available in flanged and flangeless constructions covering sizes DN 100–800. They offer high flow capacity and incorporate proven on/off seat technology. With operating temperatures up to 425 °C, they are suitable for shutoff and isolation of lines carrying fibrous media in the pulp and paper industry.
Neles R series segment ball valve for on/off service
Neles
R Series Segment Ball Valves for On/Off Service | Neles
Product code: R
Segment ball valve for on/off isolation service with high flow capacity, suitable for fibrous media, in sizes DN 100–800.
- Category
- Segmented Ball 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
Segment ball valve design with high flow capacity
Segment ball valve construction combined with on/off valve seat technology delivers high flow capacity, suitable for on/off and isolation applications.
Suitability for fibrous media
Suitable for fibrous media, providing a basis for media compatibility when selecting valves for related industrial processes.
Flanged and flangeless constructions with multiple standard face-to-face dimensions
Available with flanged and flangeless body constructions; face-to-face dimensions comply with IEC 60534-3-2, ISA 75.08.02 or IEC 60534-3-1, simplifying selection according to piping connections and installation conditions.
Metal seat and soft seat configurations
Metal or soft seats are available; the metal seat shut-off class complies with ISO 5208 Rate D and the soft seat with 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
Which on/off isolation applications are the Neles R series segment ball valves suited for?
The Neles R series is intended 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 service conditions and can handle fibrous media. Specific configurations must be confirmed based on the actual model and application conditions.
What is the difference in sealing performance between metal seats and soft seats in the Neles R series?
The standard metal seat construction of this series complies with ISO 5208 Rate D; for applications with the most stringent sealing requirements, a soft seat construction is available with a shut-off class of ISO 5208 Rate C. The seat type should be confirmed based on the media, temperature and isolation requirements.
What are the pressure, temperature and size ranges of the Neles R series segment ball valves?
Body pressure ratings of this series cover PN 10 to PN 40 and ASME Class 150 to Class 300; sizes range from DN 100 to DN 800, i.e. 4 inches to 32 inches; the temperature range is -50 to +425 °C. Actual selection also requires verifying the compatibility of the pressure rating, body construction and media conditions.
Which actuation and control options are available for the Neles R series?
Standard products can be equipped with cylinder actuators or manual actuators, and can be fitted with intelligent on/off valve controllers for reliable isolation operation. Actuator and control configurations should be confirmed according to on-site operating methods and automation requirements.
How should connection dimensions be verified when installing Neles R series segment ball valves?
The series is available with flanged and flangeless body constructions, with face-to-face dimensions complying with IEC 60534-3-2, ISA 75.08.02 or IEC 60534-3-1. Before installation, verify the body construction of the actual model, piping flange conditions, face-to-face dimensions and the space required for actuator installation.