Benefits of rotary and linear valve technology in one package.
Neles RotaryGlobe series ZX control valve is designed to control a wide range of process liquids, gases and vapors. Its reliable and rugged construction with variety of different trim choices makes the Neles RotaryGlobe an ideal choice for general and severe service control valve applications. The valve provides excellent control accuracy with the inherent benefits of a rotary valve. The optimized design results in reliability and control stability and also reduces lifetime costs.
Applications
- Refining
- Petrochemicals
- Chemicals
- Power generation
Features
Neles? RotaryGlobe? Control Valve Series ZX Features:
- Simple construction.
- Anti-blowout shaft.
- Thrust bearing outside the pressure boundary.
- Low emissions according to TA-Luft / VDI 2440.
- Fire safe certification according to API 607, 6th edition.
- Wide trim selection with several capacities and characteristics ensure optimal control performance according to application needs.
- Capable to handle high pressure drop with wide rangeability.
- Versatile mounting orientations.
Benefits
Neles? RotaryGlobe? Control Valve Series ZX Benefits:
- Unique design combining the benefits of rotary and linear control valve technology.
- Wide trim selection with several capacities and characteristics ensure optimal control performance according to application needs.
- Capable to handle high pressure drop with wide rangeability.
- Inherently balanced trim design allows low operational torque and stable control for the whole opening range.
- Live loaded rotary packing ensures low fugitive emissions.
- Excellent reliability with low maintenance cost.
- Versatile mounting orientations.
Specifications
Neles? RotaryGlobe? Control Valve Series ZX Specifications:
| Specification | Details |
|---|---|
| Body construction | Flanged |
| Body pressure rating | PN 40 – 250 / ASME Class 150 – 1500 |
| Face to face | According to IEC 60534-3-1 / ISA 75.08.01 (globe length) |
| Size range | DN 15 – 100 / 1/2" – 4" |
| Temperature range | -80 … +425 °C / -110 … +797 °F |
| Tightness | According to ANSI/FCI 70-2 Class IV |
Q & A
Neles? RotaryGlobe? Control Valve Series ZX Q & A
+ What is the Neles RotaryGlobe ZX valve and what is its operating principle?
The ZX is a flanged rotary-globe control valve combining the advantages of rotary and linear valve technologies. It uses a rotary plug inside a globe-style body, offering the precise control characteristic of linear valves with the compactness and benefits of rotary operation.
+ What types of media can the ZX valve handle, and in which industries is it commonly used?
It is suitable for a wide variety of process liquids, gases, and vapors. Typical industries include refining, petrochemicals, chemicals, and power generation.
+ What tightness or leakage class does this valve achieve?
The ZX valve meets ANSI/FCI 70-2 Class IV tightness standards for seat leakage.
+ How does the valve handle high pressure drops, cavitation, and noise?
The ZX offers balanced trims designed to manage high pressure drops, and another variant has Q-Trim? technology for aerodynamic noise reduction and cavitation attenuation. These features improve performance and protect internal components under severe service.
+ What are the standards, certifications, and materials used in ZX?
- Standards / Certifications: Meets API, EN, ASME standards; certified fire-safe (API 607); emission standards (TA-Luft / VDI 2440); tightness standard ANSI/FCI 70-2. Valmet +1
- Materials: Standard body/bonnet materials include CF8M stainless steel and WCC carbon steel; optional materials (for more severe service) include WC6 (F11). Plug, stem and seat materials include 17-4PH, AISI 316, Nitronic 60.
Downloads
Download Neles? RotaryGlobe? Valve Seires ZX Datasheet
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