The Neles GW Series Three-Way Globe Control Valve features an unbalanced, top- and seat-guided design, pressure classes up to ASME 150–600, an operating temperature range of -29 to +425 °C, SIL 3 certification, and low-emission performance compliant with ISO 15848. The valve is equipped as standard with hardened trim surfaces and is specifically designed for continuous mixing or diverting control of heat exchanger and process fluids, providing stable process flow regulation through precise adjustment of flow-path ratios.
Neles Three-Way Globe Valve, GW Series
Neles
Neles GW Series Three-Way Globe Control Valve
Three-way globe control valve for process fluid mixing and diverting, with optional bellows packing.
- Category
- Globe Valves
- Nominal Size Range
- DN 25 - 250 / 1" - 10"
- Pressure Rating
- ASME 150 – 600 / PN10 – 100
Specifications
- Valve Design
- Unbalanced, top-guided and seat-guided
- Nominal Size Range
- DN 25 - 250 / 1" - 10"
- Pressure Rating
- ASME 150 – 600 / PN10 – 100
- Operating Temperature Range
- -29 to +425 °C / -20 to +797 °F
- Seat Leakage Class
- ANSI/FCI 70-2 Class II - IV
- End Connections
- Flanged or welded ends
- Low-Emission Standard
- In accordance with ISO 15848, with optional bellows packing
- Material Options
- NACE material options available
- Safety Integrity Level
- SIL 3 certified
- Trim Surface
- Hardened trim surfaces as standard
Application scenarios
Heat Exchanger Process Fluid Mixing or Diverting Control
For process fluid piping systems requiring mixing or diverting. The three-way valve adjusts flow ratios to provide stable process control.
Continuous Process Fluid Mixing Control
For continuous process fluid mixing. The three-way valve adjusts the flow ratios of different flow paths to provide stable flow control.
Selection points
Standard Hardened Trim Surfaces
The GW Series is equipped as standard with hardened trim surfaces.
Unbalanced Design with Top and Seat Guidance
The GW Series features an unbalanced design with top guidance and seat guidance.
ISO 15848 Low Emissions and Optional Bellows Packing
The GW Series complies with the ISO 15848 low-emission standard and is available with optional bellows packing.
Installation notes
Verify the Three-Way Flow Direction and Function Type
The GW Series is used for mixing or diverting service. Before installation, verify the correspondence between each connection and the process piping based on the valve body markings and actual configuration, ensuring that the medium flow direction matches the valve's intended mixing or diverting function.
FAQ
Is the Neles GW Series Three-Way Globe Valve suitable for mixing or diverting service?
The Neles GW Series is a heavy-duty three-way control valve suitable for both mixing and diverting service. Its unbalanced, top-guided and seat-guided trim design helps provide stable flow control and supports noise control requirements.
How should the appropriate valve size, pressure rating and trim be selected for the Neles GW Series?
Selection should be based on the actual medium, flow rate, pressure differential, temperature, piping connection method and required flow characteristic. The GW Series covers sizes from DN 25–250 (1–10 in), pressure ratings from ASME 150–600 or PN10–100, and multiple trim capacities and flow characteristics. The specific configuration must be confirmed according to the actual model and application conditions.
Which industrial sectors can use the Neles GW Series Three-Way Globe Valve?
The series is suitable for process applications requiring medium mixing or diverting control in industries including oil and gas production, petrochemicals, chemicals, power generation and industrial gases.
What are the sealing, low-emission and safety features of the Neles GW Series?
The GW Series has a seat leakage classification of ANSI/FCI 70-2 Class II to IV, low-emission performance in accordance with ISO 15848, and optional bellows packing. The series also offers NACE material options and SIL 3 certification.
Is the Neles GW Series Three-Way Globe Valve easy to maintain?
The series features a top- and bottom-entry design for convenient maintenance. Its top-guided and seat-guided trim uses a robust and stable construction, and hardened trim surfaces are provided as standard to help extend service life and reduce maintenance requirements. The valve body is available with flanged or welded ends. Specific maintenance requirements must be confirmed according to the actual model and installation conditions.