Finally, a liquid level gauge that withstands hydrochloric acid’s corrosive power. Krueger Sentry Gauge offers all-plastic liquid level gauges specifically designed for hydrochloric acid level monitoring in storage tanks and drums. Our gauges are made in the U.S.A., built with chemically inert plastics, and engineered to keep your facility safe, compliant with bulk chemical storage regulations, and running efficiently—no more corroded gauges, no more hazardous leaks.
The Challenge: Traditional Gauges Fail in Hydrochloric Acid Service
Storing or processing hydrochloric acid (HCl) presents unique challenges for facility managers and engineers. Standard metal gauges and glass sight tubes can quickly become liabilities in HCl environments. Hydrochloric acid aggressively attacks common metals: even high-grade stainless steel (304/316) suffers severe corrosion when exposed to HCl solutions. As metal components corrode, the gauge can start leaking, and the acid-metal reaction can release flammable hydrogen gas, creating immediate fire and safety hazards. Using an incompatible gauge on an HCl tank is an accident waiting to happen.
Avoid Tank Level Gauge Corrosion
Gauge corrosion and failure are pervasive pain points. Facility managers frequently replace corroded stainless steel gauges or rusting bolts, risking unmonitored tanks in the interim. A corroded float or mechanism can stick and provide inaccurate readings, risking overfilling (causing spills) or running empty (interrupting processes). Glass tube indicators, while chemically resistant, are fragile and easily broken, potentially causing dangerous acid spills. Metal valves or fittings on sight gauges further compound these issues, rapidly corroding and leading to leaks.
Managers and engineers also face compatibility and compliance challenges. Hydrochloric acid is commonly stored in polyethylene or fiberglass tanks requiring chemically compatible fittings. A rigid metal gauge or incompatible gasket can’t flex with plastic tank expansions and contractions, risking seepage. Regulatory compliance demands robust containment and monitoring for hazardous chemicals, including double-walled tanks. Typical gauges often can’t accommodate double-wall designs or pipe risers, leaving operators without safe monitoring methods.
The Solution: Krueger Sentry’s Plastic Hydrochloric Acid Tank Level Gauges
Krueger Sentry Gauge directly addresses these issues with our At-A-Glance® liquid level gauges, featuring all-plastic, corrosion-resistant construction specifically designed for acids. Rather than metal parts, our gauges utilize chemically inert thermoplastics at critical points of contact. Every component contacting hydrochloric acid is constructed from acid-proof materials—PEEK or Kynar® (PVDF) support rods, durable PVC bushings and threaded fittings, and chemical-resistant HDPE floats. These materials resist hydrochloric acid corrosion, ensuring no rust, pitting, or degradation.
Our Hydrochloric Acid Tank Level gauge provides accurate, leak-free service. With a clear visual readout on top-mounted indicators, you avoid direct tank opening and exposure. The mechanical float-and-rod mechanism requires no power and has minimal failure modes, ideal for hazardous chemical storage. Maintenance is drastically reduced, as our corrosion-resistant design eliminates frequent replacements or repairs.
Manufactured in the U.S., Krueger Sentry gauges are customizable to exact tank dimensions. They accommodate tank depths from 6 inches up to 12 feet, including double-wall tanks and pipe risers. Installation is straightforward with standard NPT tank openings, ensuring compatibility across storage setups.
HCl Storage Tank Level Gauge Models and Technical Specifications: PD for Tanks and PB for Drums
Krueger Sentry offers models tailored to your storage requirements. For bulk tanks, the Type PD gauge provides direct-reading capability. This top-mounted model adjusts to tank depths from 6 inches to 12 feet, accurately tracking levels even in double-wall tanks and tanks with pipe risers.
For smaller containers, the Type PB gauge is ideal for drums. Designed specifically for standard 55-gallon, 30-gallon, and 15-gallon drums, this model delivers clear, accurate level readings. Its all-plastic construction ensures corrosion resistance, enhancing safety and inventory management across facilities.
Both gauge models share simplicity, robustness, and easy installation, with no electronics or complex calibrations required. Optional accessories like remote level alarms or digital monitoring can be added if needed.
Plastic Gauges Outperform Steel and Glass in HCl Environments
The superiority of plastic gauges over traditional stainless steel or glass gauges is clear. Hydrochloric acid rapidly corrodes stainless steel components, causing leaks or mechanical failures. Plastics like PVC, PVDF, and HDPE exhibit excellent chemical resistance, remaining unaffected even by concentrated HCl. Our gauges leverage these properties, eliminating corrosion risk.
Safety and durability further distinguish our gauges. Glass tubes, although chemically inert, are prone to breakage, risking hazardous spills. Krueger Sentry’s gauges are internally contained with sturdy plastic housings, eliminating external breakage risks. The mechanical simplicity minimizes joints and potential leakage points, providing fail-safe operations.
Maintenance costs and lifespans also favor our plastic gauges. Unlike frequently replaced metal or glass gauges, our corrosion-resistant models offer long-term reliability with minimal maintenance.
Safety, Compliance, and Peace of Mind In Acid Storage
Choosing Krueger Sentry gauges enhances safety and regulatory compliance. Environmental and safety regulations mandate proper materials and monitoring for hydrochloric acid storage. Our gauges support secondary containment compliance (double-wall tank designs) and closed-system regulations by offering vented gauge options that minimize vapor emissions.
Industry standards recommend plastic materials for hydrochloric acid fittings, validating our gauge material selection. With extensive experience and a proven track record, our gauges eliminate material compatibility concerns.
Facility managers gain enhanced operational safety, engineers enjoy simplified design integration, and procurement officers appreciate reduced lifecycle costs and dependable supply from a U.S. manufacturer.
Transform Your Hydrochloric Acid Storage Safety Today
Hydrochloric acid demands robust handling solutions. Krueger Sentry’s plastic liquid level gauges deliver accuracy, durability, and compliance essential for safely managing aggressive chemicals. Don’t risk safety or operational stability with incompatible gauges. Contact Krueger Sentry Gauge today for your customized, corrosion-resistant gauge solutions, and transform your hydrochloric acid storage safety standards.
We also have solutions for: Potassium Hydroxide (KOH) Tank Level Gauges, Bleach Storage Tank Level Gauges, Sulphuric Acid Tank Level Gauges and Chlorine Tank Level Gauges.
Frequently Asked Questions
Got questions? Get answers instantly by browsing our FAQs below, chatting with our AI assistant, or reaching out to our team directly.
What do we use as a part number?
At Krueger Sentry, we don’t use classic part numbers. Everything is description-based. Refer to your product’s Spec Page (materials options) and the Order Info (tank measurements) page for more information. Example Part Number: – H-2-48 + 12 w/glass (H signifies the type of gauge, 2 is the size opening, 48 is the tank depth, 12 is the extension, and everything after that is the options you want to be included.
Which liquid level monitor is the right choice for me?
When choosing a liquid level gauge, different factors can change which sight gauge is best for you. The basic factors that motivate people to buy each type of gauge are as follows.
- Economical sight gauge- At-A-Glance Direct Reading
- Versatile sight gauge- Therma Gauge
- Small tank monitor, under 12 inches – The L Gauge
- Standard Barrel Level Gauges – Barrel Gauge
- Up to 12 feet of mechanical remote capability – Remote Reading Gauge
- Durability – GFK Gauge – you can achieve this durability by ordering a therma gauge with a gauge guard as well.
How do I find or locate a Krueger Sentry Gauge distributor?
Search our Preferred Distributor Page. Don’t see a distributor you want to use? Call me. Lee Geurts: 920-434-8860 ext 204
Which sight gauge do you recommend most often to your customers?
I try to sell the Therma gauge to most people. It is nearly as inexpensive as the At A Glance Gauge, but you have more control over your swing arm. Plus, this level gauge can be fitted with the most options.
What is the difference between the Type D At a Glance Level Gauge and the Type H Therma Level Gauge?
The Swing arm on the Type D Gauge is fixed. When you thread in the gauge, the swing arm spins inside the tank and will end up facing in a random direction. The swing arm on the Type H Gauge can be aimed in the exact direction you want it to swing, and when you thread the gauge in it does not spin inside the tank.
How long is the swing arm on a level gauge?
The arm is always half the depth of your tank.
How do I order a custom-size level gauge?
In order to get an accurate gauge for your tank, we take two measurements into consideration. First, we measure, in inches from top to bottom, what the distance is from empty to full, known as tank depth. Second, the distance from the full mark to the gauge fitting on top is also known as an extension length. Sometimes this measurement comes out to zero.
How do I prevent my tank gauge from getting damaged by the sun and weather?
Ordering upgraded options such as Solid Glass Tops and Gauge Guards will make your Krueger Gauge nearly impervious to weather, sun, and damage.
Can I repair just the top of my Tank Gauge, or do I need to replace the whole thing?
If your gauge still seems functional, you can replace just the top components by ordering the corresponding repair kit. Repair Kits are available for all gauge types and come in a variety of material options for added durability, which can be found in the Tank Gauge Accessories.
What is the recommended maintenance/testing for Krueger Leak Gauges?
Krueger Sentry provides a Leak Gauge Functionality / Calibration Testing Report with inspection procedures for inspectors/technicians. Please contact us with any questions.
