The Neles Omega AM series angle control valve is designed for noise and cavitation control in high pressure drop applications. Available in sizes DN 25–1200 and pressure classes ASME 150–2500, it features the Omega multi-stage stacked-disc trim and is certified to ISO 15848 for low emissions and SIL 3 for safety integrity. It is suitable for cavitation control in high pressure drop liquid process lines, as well as noise control in high pressure drop gas and steam applications.
Neles Omega angle valve, AM Series
Neles
Omega AM Series Angle Control Valve | Neles
Product code: AM
Angle control valve for noise and cavitation control in high pressure drop applications, suitable for liquids, gases and steam, with sizes from DN 25 to DN 1200.
- Category
- Globe Valves
- Nominal size range
- DN 25 - 1200 / 1" - 48"
- Pressure class
- ASME 150 – 2500 / PN10 – 320
Specifications
- Valve construction
- Angle body; unbalanced, top-guided; balanced, cage-guided
- Nominal size range
- DN 25 - 1200 / 1" - 48"
- Pressure class
- ASME 150 – 2500 / PN10 – 320
- Operating temperature range
- -196 to +593 °C
- Seat leakage class
- ANSI/FCI 70-2 Class IV / V (metal seat), Class V (balanced soft seat), Class VI (unbalanced soft seat)
- End connections
- Flanged ends, welded ends
- Trim guide design
- Top-guided, heavy-duty cage-guided
- Trim technology
- Omega multi-stage stacked-disc trim
- Noise and cavitation control
- Suitable for noise or cavitation control in high pressure drop applications
- Low emission standard
- ISO 15848
- Safety integrity level
- SIL 3
- Material options
- NACE material options available
- Packing options
- Bellows packing
- Actuator types
- Diaphragm or piston type
Application scenarios
High pressure drop cavitation control
Suitable for high pressure drop throttling applications in liquid process lines. The Omega multi-stage stacked-disc trim divides the pressure drop into stages to control the cavitation risk caused by high pressure drops, and works with actuators and valve controllers to achieve precise flow control.
High pressure drop noise control
Suitable for high pressure drop control applications with gas, steam or other process media. The Omega multi-stage stacked-disc trim combined with a top-guided or heavy-duty cage-guided design reduces the noise generated by high pressure drop throttling and supports stable flow control.
Selection points
Omega Multistage Stacked-Disc Trim
Features Omega multistage stacked-disc trim for noise or cavitation control in high pressure-drop applications.
Balanced and Unbalanced Designs with Multiple Shutoff Configurations
Available with unbalanced top-guided and balanced cage-guided designs, with metal-seat, balanced soft-seat, and unbalanced soft-seat shutoff configurations corresponding to ANSI/FCI 70-2 Class IV, V, or VI shutoff ratings.
Maintenance Design Without Removing the Valve from the Line
The valve does not need to be removed from the line when replacing components, making it suitable for installations requiring reduced maintenance effort.
Low-Emission and Bellows Seal Configuration
Optional bellows seal configuration complies with ISO 15848 low-emission requirements.
Wide Pressure and Temperature Coverage
Nominal sizes range from DN 25 to 1200, with pressure classes up to ASME 2500 or PN320 and an operating temperature range from -196 °C to +593 °C.
Installation notes
Verify flow direction and angle-piping arrangement against the valve body markings
This valve uses an angle-style body. During installation, connect the two flow ports correctly according to the actual flow-direction markings on the valve body and the site piping arrangement to ensure proper noise or cavitation control by the Omega multistage stacked-disc valve trim under high-pressure-drop conditions.
FAQ
How does the Neles Omega AM series angle valve reduce noise and cavitation in high pressure drop applications?
The AM series can be equipped with Omega multi-stage stacked-disc trim technology, which divides the pressure drop into stages to reduce the noise and cavitation risk generated during high pressure drop throttling. Different trim capacities, flow characteristics and numbers of stages can be selected according to the application; the specific configuration must be confirmed based on the actual model and application conditions.
What demanding process conditions is the AM series angle valve suitable for?
The series is suitable for applications involving high pressure drops, erosive media, and requirements for noise or cavitation control. The angle body design is particularly suitable for angular piping installation. Optional materials, flanged or welded end bodies, bellows packing, NACE materials and special cleaning configurations are available to meet applications such as oxygen and cryogenic service.
How do I select the trim and leakage class for the Neles Omega AM series?
Selection should be based on pipe size, pressure class, medium temperature, pressure drop, flow control requirements, leakage class and medium characteristics. The series offers top-guided or heavy-duty cage-guided trims with multiple capacity, characteristic and stage options; metal seats can achieve ANSI/FCI 70-2 Class IV or V, unbalanced soft seats can achieve Class VI, and balanced soft seats can achieve Class V. The specific configuration must be confirmed based on the actual model and application conditions.
What are the pressure, temperature and size ranges of the AM series angle valve?
The AM series covers sizes from DN 25 to DN 1200 (1 inch to 48 inches), pressure classes from ASME 150 to 2500 and PN10 to PN320, and temperatures from -196 °C to +593 °C. The actual available range must be confirmed in combination with the body, trim, sealing and material configurations.
Does the Neles Omega AM series angle valve need to be removed from the line for maintenance?
The series features a top-entry design with a quickly replaceable trim, so the valve does not need to be removed from the line when replacing components. Its one-piece body reduces potential leak paths, and the standard configuration can be combined with diaphragm or piston actuators and valve controllers for precise flow control and online performance monitoring.