Norgren D166LG43VVL2001 High-Pressure Dome-Loaded Pressure Regulator

Note: This regulator is not suitable for liquid media or oxygen service without proper certification.

Core Advantages

Dome-Loaded Precision Control
The D166LG43VVL2001 utilizes a dome-loaded pilot-operated design where output pressure is determined by an external pilot control air pressure. This architecture makes the output pressure independent of inlet pressure fluctuations, delivering high regulation precision essential for critical blow molding processes.

High Flow Capacity for PET Blow Molding
Engineered specifically for PET bottle blowing machines, this regulator delivers the large flow rates required for high-pressure blow air circuits. It serves as an OEM-standard component across major blow molding equipment brands.

Remote Pilot Control, Automation-Ready
With no manual adjustment knob, the valve is designed for remote pneumatic pilot control, making it ideal for automated closed-loop control systems. This eliminates the need for manual intervention in hard-to-reach or hazardous installation locations.

Low Leakage Design
The low-leakage construction makes this regulator suitable for production lines where gas leakage sensitivity is a concern, helping to maintain pressure stability and reduce operating costs.

Brass Construction for Corrosion Resistance
The brass valve body provides effective resistance to compressed air corrosion, ensuring reliable long-term performance in demanding industrial environments.

Application

The Norgren D166LG43VVL2001 is deployed across high-pressure gas control applications where precision and reliability are critical:

• PET Blow Molding Machines: The primary application. Controls blow air pressure in the bottle forming process, ensuring consistent bottle quality across production runs. It is a factory-standard valve for multiple blow molding machine manufacturers.

• High-Pressure Gas Distribution Systems: Used for centralized pressure regulation of compressed air and nitrogen in industrial gas distribution networks.

• Pressure Test Benches: Provides stable, precise pressure regulation in testing and calibration equipment.

• Compressor Downstream Regulation: Serves as a downstream pressure regulator for compressor systems requiring stable output pressure.

• Inert Gas Supply Systems: Suitable for controlled pressure delivery in inert gas applications (excluding oxygen without special certification).

FAQ

Q1: What is the D166LG43VVL2001 and how does it differ from a standard solenoid valve?

It is a dome-loaded, pilot-operated pressure regulator, not a solenoid valve. Output pressure is set by an external pilot air pressure rather than an electrical signal or manual knob. It is specifically designed for high-pressure regulation in PET blow molding systems.

Q2: Can this valve be used with oxygen service?

No. The standard version is not suitable for oxygen without proper certification. It is designed for use with air, nitrogen, and other gases as specified.

Q3: What is the maximum inlet pressure?

The maximum pressure rating is 100 bar, making it suitable for high-pressure blow molding circuits and demanding industrial gas applications.

Q4: Does this regulator require a separate pilot control line?

Yes. Because it is dome-loaded, an external pilot air pressure signal is required to set the desired output pressure. This enables remote and automated pressure control.

Q5: What is the port size?

The valve features a G1 port connection.

Q6: Is the D166LG43VVL2001 suitable for liquid media?

No. It is designed exclusively for gas media. Liquid applications require different valve specifications.

Q7: What is the country of origin?

The D166LG43 series is manufactured in France by the GHR/IMF facility (Andilly, France), under the IMI Norgren group.

Q8: What spare parts are available for this valve?

Repair kits and seal kits are available for the D166LG43VVL2001, as it is a standard component in PET blow molding machine maintenance.

Recommended Models

The following models are related variants or commonly associated within the Norgren high-pressure regulator family: