0–15 PSI Liquid-Filled Pressure Gauge 40mm 1/8" NPT | Fuel & Hydraulic
0–15 PSI Liquid-Filled Pressure Gauge 40mm 1/8" NPT | Fuel & Hydraulic
Universal 0–15 PSI Shock-Resistant Pressure Gauge — 40mm Dial, 1/8" NPT
Keep your fuel systems, air compressors, water pumps, and hydraulic equipment operating at peak performance with this heavy-duty liquid-filled pressure gauge. Built from premium 304 stainless steel with a silicone-oil-filled interior, it delivers rock-steady, accurate readings even in high-vibration environments. Includes three brass adapters for fast, leak-free installation right out of the box. Made in Mainland China.
Key Features
- High-Precision Copper Movement: High-sensitivity copper internal mechanism paired with a high-contrast 0–15 PSI clear dial achieves ±1% full-scale accuracy — spot abnormal pressure changes before they cause equipment issues.
- Silicone Oil-Filled, Shock-Resistant Design: Internal silicone oil fill and a fully sealed stainless steel casing absorb vibration and reduce wear on internal components, ensuring stable readings under demanding operating conditions.
- 304 Stainless Steel Housing: Brushed 304 stainless steel shell resists rust, water splashes, dust, and minor impacts — purpose-built for both indoor workshops and outdoor harsh environments.
- Leak-Proof Brass Connectors: Three solid brass adapters with standard 1/8" NPT thread interfaces provide superior airtightness, eliminating leaks during installation and long-term use while cutting maintenance costs.
- Wide Compatibility & Easy Installation: Works with fuel systems, air compressors, hydraulic circuits, water pumps, and automotive modification projects. The large high-visibility 40mm dial is easy to read in low-light conditions — no complex tools required.
Specifications
| Pressure Range | 0–15 PSI |
| Dial Diameter | 40mm / 1.5 inch |
| Thread Connection | 1/8" NPT |
| Housing Material | 304 Stainless Steel (brushed finish) |
| Internal Movement | High-sensitivity Copper |
| Filling Fluid | Silicone Oil |
| Lens | Tempered Glass |
| Adapters | Solid Brass (3 included) |
| Accuracy | ±1% Full Scale |
| Color | Black / Stainless |
| Country of Origin | Mainland China |
What's in the Box
- 1 × 0–15 PSI Liquid-Filled Pressure Gauge
- 3 × Brass Installation Adapters
Applications
Ideal for: fuel pressure monitoring, air compressor pressure testing, hydraulic system diagnostics, water pump pressure measurement, automotive modification builds, and industrial equipment pressure tracking.
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Frequently Asked Questions
Q: What systems is this 0–15 PSI pressure gauge compatible with?
A: This universal pressure gauge is compatible with a wide range of systems including fuel lines, air compressors, hydraulic circuits, water pumps, and automotive modification setups. Its standard 1/8" NPT thread connection and included brass adapters make it easy to integrate into most existing setups without additional hardware.
Q: Why is the gauge liquid-filled, and what fluid is used?
A: The gauge is filled with silicone oil, which dampens vibration and pulsation from pumps and engines. This protects the delicate internal copper movement from wear and keeps the needle steady for accurate, easy-to-read measurements — even in high-vibration environments like running engines or industrial machinery.
Q: Is this pressure gauge suitable for outdoor or harsh-environment use?
A: Yes. The 304 stainless steel housing with brushed finish resists rust, water splashes, dust, and minor physical impacts, making it well-suited for both indoor workshops and outdoor applications such as agricultural equipment, marine systems, or automotive use.
Q: What does the ±1% full-scale accuracy rating mean?
A: ±1% full-scale accuracy means the gauge reading is accurate to within ±0.15 PSI across the full 0–15 PSI range. This is a high-precision standard suitable for monitoring fuel, hydraulic, and pneumatic systems where consistent, reliable pressure data matters.
Production & Packaging Notice
To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.