The Leitenberger M10NH3U pressure gauge has been specifically designed for the precise pressure measurement of systems operating with ammonia (NH3) refrigerant. This high-quality instrument is a guarantee of German engineering expertise and „Made in Germany” quality, ensuring reliable and accurate operation in the most demanding industrial and refrigeration technology applications.
Thanks to its full stainless steel construction, the M10NH3U model has excellent corrosion resistance, which is essential for long-term, trouble-free use in an ammonia environment.
Optimized specifically for NH3: The instrument's scale and design perfectly match the characteristics of ammonia (NH3) refrigerant, ensuring accurate readings.
All Stainless Steel Construction: The case, socket, and measuring element are all made of AISI 316L quality stainless steel, guaranteeing maximum durability and resistance against corrosive media.
Accuracy: The instrument belongs to the 1.0 accuracy class, ensuring reliable and verifiable measurements.
Robust Construction: The 4-inch (approx. 100 mm) diameter dial is highly legible, while the robust construction withstands mechanical stress.
Bottom Connection: The bottom connection (Type R) equipped with a G 1/2″ thread allows for simple and secure installation into systems.
Detailed technical specifications for the M10NH3U pressure gauge can be found in the table below:
| Parameter | Value | Note |
|---|---|---|
| Part number | M10NH3U | |
| Measurement range | See below | Bar and °C scale |
| Accuracy Class | 1.0 | High Accuracy |
| Dial Diameter | 4" (approx. 100 mm) | Highly legible size |
| Connection Type | Type R (Bottom Connection) | |
| Connection Size | G 1/2″ | Standard industrial size |
| Socket material | AISI 316L | Excellent Corrosion Resistance |
| Elastic element material | AISI 316L | Element responsible for measurement accuracy |
| Housing Material | Full stainless steel |
The M10NH3U instrument is available in several scales, which are optimized for the different operating conditions of ammonia (NH3) refrigeration circuits:
| Range (Bar) | Range (°C) | Field of application |
|---|---|---|
| -1 / +9 bar | -70 / +25 °C | Lower pressure/temperature zones |
| -1 / +15 bar | -70 / +40 °C | General Refrigeration Applications |
| -1 / +24 bar | -70 / +56 °C | Higher pressure/temperature zones |
Beyond the standard configuration, the M10NH3U model is also available with additional options to meet specific requirements:
Glycerin-Filled Version: Filling the instrument with glycerin significantly dampens the indicator's vibration and the effects of pressure surges, especially in vibrating environments or during rapid pressure changes. This increases reading stability and extends the instrument's service life.
Custom Connectors: Different connection sizes and types (e.g., NPT, BSP) are available for a perfect fit with existing systems.
For precise installation, the table below contains the physical dimensions of the instrument (based on the drawing designations):
| Marking | Dimension (mm) | Description |
|---|---|---|
| Type | M10NH3U | Type Identifier |
| F | 1/2″ | Connection Size |
| A | 48 | Socket Width (approx.) |
| C | 12,5 | Socket Height (approx.) |
| D | 100 | Dial Diameter (approx.) |
| d | 110,5 | Total Casing Diameter (approx.) |
| H | 143,3 | Total Height (approx.) |
| K | 38 | Socket Depth (approx.) |
| T | 16 | Thread Length of Connector (approx.) |
| Ch | 22 | Wrench Opening Size (approx.) |
The M10NH3U pressure gauge is the ideal choice for all areas requiring safe and accurate ammonia pressure measurement:
Refrigeration Facilities: Large capacity industrial cold stores, freezing plants.
Air Conditioning and Refrigeration Systems: Maintenance and operation of large-scale air conditioning systems using ammonia.
Process Technology: Chemical and food industry processes where ammonia is used as a refrigerant or pressure transmitting medium.
Instrumentation and Calibration: As a precision measuring instrument for system monitoring.
The Leitenberger M10NH3U guarantees precision and long service life, ensuring the optimal and safe operation of refrigeration systems.
