PIC Gauges 101D-158B
PIC Gauges 101D-158B Pressure Gauge User Manual
Model: 101D-158B | Range: 0-15 PSI
Product Overview
The PIC Gauges 101D-158B is an economical and reliable dry pressure gauge designed for a wide range of commercial and industrial applications. It is suitable for measuring pressure in systems containing air, water, oil, gas, or any other media that is not corrosive to brass components.
Key Features:
- Black Steel Case with Chrome Bezel
- Brass Socket and Movement
- Phosphor Bronze Bourdon Tube
- Dry Non-Fillable Design
- 3-2-3% Accuracy

Image: Front view of the PIC Gauges 101D-158B pressure gauge. This image displays the clear dial with markings from 0 to 15 PSI, the black needle, and the brass bottom mount connection.
Specifications
| Attribute | Detail |
|---|---|
| Model Number | 101D-158B |
| Pressure Range | 0 - 15 PSI |
| Dial Size | 1.5 inches |
| Connection Type | 1/8" Male NPT, Bottom Mount |
| Case Material | Black Steel |
| Internals Material | Brass Socket and Movement, Phosphor Bronze Bourdon Tube |
| Bezel Material | Chrome |
| Lens Material | Plastic |
| Accuracy | 3-2-3% |
| Product Dimensions | 1.73 x 1.74 x 1.78 inches |
| Weight | 1.6 ounces |
Safety Information
WARNING:
- Always depressurize the system before installing or removing the gauge.
- Ensure the gauge's pressure range is suitable for the application. Exceeding the maximum rated pressure can cause damage or injury.
- Do not use this gauge with media corrosive to brass.
- Wear appropriate personal protective equipment (PPE) during installation and operation.
- This product may contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Read all warnings and instructions before using.
Setup and Installation
- Inspect the Gauge: Before installation, carefully inspect the gauge for any signs of damage during shipping. Ensure the dial is clear and the needle moves freely.
- Prepare the Connection Point: Ensure the system connection point is clean and free of debris. The gauge features a 1/8" Male NPT thread.
- Apply Thread Sealant: Apply an appropriate thread sealant (e.g., PTFE tape or pipe dope) to the male NPT threads of the gauge. Apply sealant only to the threads, avoiding the first thread to prevent contamination of the system.
- Thread the Gauge: Carefully thread the gauge into the female NPT port. Hand-tighten first to ensure proper alignment.
- Tighten the Gauge: Using a suitable wrench on the hex portion of the gauge connection, tighten the gauge until snug. Do not overtighten, as this can damage the threads or the gauge. Do not use the gauge case or bezel to tighten.
- Check for Leaks: Once installed, slowly pressurize the system and check for any leaks around the connection point using a leak detection solution.

Image: Side view of the pressure gauge, highlighting the threaded brass connection. This view is useful for understanding the mounting orientation and thread type.
Operating Instructions
The PIC Gauges 101D-158B is a direct-reading pressure gauge. Once properly installed in a pressurized system, it will display the current pressure on its dial.
- Reading the Gauge: Read the pressure indicated by the black needle on the white dial. The major markings are in PSI (pounds per square inch), with minor increments for precise readings.
- Normal Operation: The gauge is designed for continuous pressure monitoring within its specified range (0-15 PSI). Avoid exposing the gauge to pressures significantly above its maximum rating, even for short durations, as this can cause permanent damage.
- Pulsating Pressure: For applications with pulsating pressure (e.g., from pumps or compressors), consider installing a snubber or restrictor upstream of the gauge to dampen pressure spikes and prolong gauge life.

Image: Angled front view of the pressure gauge, providing a perspective of its compact size and overall construction.
Maintenance
The PIC Gauges 101D-158B is a dry, non-fillable gauge and requires minimal maintenance. Regular inspection is recommended to ensure continued accuracy and safety.
- Cleaning: Clean the exterior of the gauge, especially the plastic lens, with a soft, damp cloth. Avoid abrasive cleaners or solvents that could damage the lens or case finish.
- Regular Inspection: Periodically check the gauge for:
- Cracked or cloudy lens.
- Bent or damaged needle.
- Loose or corroded connection.
- Any signs of internal moisture or debris.
- Calibration: While this utility gauge is designed for general purpose use, if precise measurements are critical, periodic calibration by a qualified technician may be necessary.
- Storage: If removing the gauge from service, store it in a clean, dry environment, protected from extreme temperatures and physical impact.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Gauge reads zero when system is pressurized. |
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| Needle fluctuates excessively. |
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| Gauge reads incorrectly (consistently high/low). |
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| Visible damage to case or lens. |
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Warranty Information
PIC Gauges products are manufactured to high-quality standards. For specific warranty terms and conditions, please refer to the official PIC Gauges website or contact their customer support. Typically, warranties cover defects in materials and workmanship under normal use.
Please retain your proof of purchase for any warranty claims.
Support and Contact
For technical assistance, product inquiries, or support, please contact PIC Gauges directly:
- Manufacturer: PIC Gauges (Engineered Specialty Products Inc.)
- Website: Visit the PIC Gauges Store on Amazon (for general information)
- Refer to the product packaging or the official PIC Gauges website for direct contact information (phone, email).