Compatible with earth-storable propellants N2O4 and MMH and less-aggressive fluids, our components are capable of handling a wide range of applications. Reach out to one of our representatives to learn more about what they can do for you.

Ice damming can also occur when sunny days melt snow on dark roof surfaces. Snow melts fastest at peaks where the highest concentrations of heat are located. Water drips down to the roof’s edge, where it meets frigid air temperatures and a cold roof due to an unheated space below and freezes into an ice dam. As snow continues to melt, it backs up behind the ice dam and dangerous icicles form along the roof edge. These dams are exacerbated when outdoor air temperatures fluctuate – warmer winter days cause increased ice and snow melting.

PRV valve

In the event of a regulator fault, these regulators will notify the operator. This means any issues can be dealt with quickly to prevent prolonged system outages.

This is where clients blend with teams. Where need meets know-how. See how our breadth of service can tackle your industry’s toughest challenges.

The hybrid design of the system combines mechanical and electronic pressure control. Transient stability and pressure regulation is handled by the mechanical system. Longer time frame deviations, set point, and output pressure are handled by the electronic control system. This hybrid approach enables very fast, accurate, stable, and scalable operation without large electronic power or control input. Time averaged power draw is less than 10W, and peak draw is less than 45W.

The outlet pressure can be varied on command. This gives operators the flexibility they need to accommodate a wide range of applications within their systems.

The MFV400 electronic pressure regulator is a hybrid mechanical-electronic system that provides flexible, accurate, and stable pressure regulation across a large pressure ratio.

PressureReducing Valve

Electric ice melt systems for roofs eliminate ice damming at the eaves of buildings. When rooms in a building are heated, that warm air raises to the attic and can melt lower layers of snow on the roof. The melted snow runs to the edge of the roof, where it freezes. As more and more snow melts and then turns to ice, the ice dam makes its way up the roof and seeps underneath the shingles. This process results in dangerous water damage and the potential for mold growth.

Proportional control of pilots enables smoother corrections. Our electronic high-pressure regulators help ensure that your systems function as effectively as they should. This is one of the key reasons why these electronic pressure regulators and other devices are found in highly demanding situations where precision is crucial.

Regulating valve

LaBella has designed multiple hot water snow melt system installations for sidewalks, roads, and truck ramps. Snow melt systems reduce the risk of injuries from slipping, eliminate the physical labor (and cost) of shoveling and plowing, minimize accidents caused by icy roads, and improve the aesthetic appeal of pathways and driveways.

Our rigorous approach to quality control and precision design is what makes our electronic pressure regulators stand out from the competition. With our long history of serving customers in some of the most demanding industries with the most rigid standards, we have developed a reputation for supplying products that deliver the highest levels of performance.

Pressureregulating valve

At LaBella Associates, we’ve built partnerships with our clients since our inception in 1978.  If there’s been a need, we’ve responded.  The result? Diverse service offerings that can address any aspect of the built or natural environment.

There are two types of heating systems that melt snow and ice – electric and hydronic. Electric systems draw from the building’s power and use that energy to heat coils. These are typically best suited for melting dangerous ice that forms on roofs. Electric snow melt systems aren’t typically recommended for pathways and roads because they raise utility bills and can be affected by power outages. Hydronic systems, on the other hand, use hot water or steam from a boiler and are a more economic option for heating ground surfaces.

These electronic back pressure regulators provide accurate performance and minimal deviation in output pressure regardless of inlet conditions. This means operators can count on them to deliver consistent control and keep their systems flowing as smoothly and efficiently as possible.

Regulator

Waterpressure regulator

The failure of one transducer will not result in failure of the system. It isn’t until there is a failure of two or more transducers before the regulator is closed.

Butterfly valve

Marotta designs, develops, qualifies and manufactures pressure, power, motion, fluid, and electronic controls for military and commercial markets.

Both snow melt and ice melt systems are designed to turn on automatically when they are needed. For driveways, roads, and pathways, a moisture- and- temperature-sensing “puck” turns on the system when it detects moisture and temperatures close to freezing. Electric roof heating systems are triggered by a temperature-sensing puck or wire.

These regulators also have the ability to act as an isolation valve, combining two functions into one device. This increases the functionality and versatility of these devices in your system.

For more than 80 years, we have been a trusted supplier to clients including the U.S. Navy and NASA. Our extensive capabilities in engineering, design, analysis, manufacturing and testing ensure we always provide the best control system solutions. This is why we are the only small business to win the coveted NASA George M. Low Award for Quality and Excellence twice.

The system consists of a dome loaded regulator with two pilots that can increase or decrease dome pressure as needed during operation. The dome pilot valves are actuated by an electronic control system that constantly measures system output pressure and increases or decreases dome pressure as required to correct for output pressure error

Marotta’s patented electronic pressure regulator is suitable for spaceflight, defense and facility applications. Through a closed loop electronic control system controlling piezo-actuated pilot valves, the automatic pressure regulator constantly measures actual downstream outlet pressure and adjusts to changing inlet conditions.

pressureregulator中文

LaBella has partnered with many municipalities to design these systems with efficiency, effectiveness, and safety in mind. If you have a problem area and would like to explore the feasibility of constructing one of these systems, contact us today.

The precise flow control results in accurate outlet pressure insensitive to inlet pressure, flow rate and temperature. The Marotta 10K electronically controlled pressure regulator’s multifunctionality provides positive isolation and precise flow control and pressure regulation.

An ice melt system consisting of de-icing cables that run along the roof and through gutters and downspouts can prevent the occurrence of the ice damming. The electric cabling, being constant wattage, should not be overlaid and should be carefully installed to avoid overheating and possible short circuiting. LaBella Associates can work to design an effective ice melt system and can oversee construction to ensure proper installation.