Lift Station Level Sensing

Are you having problems with your current lift station level controls?  Dwyer Instruments may just have the cost effective solution you need.  In this article we will review several level sensing strategies, the advantages and disadvantages of each, as well as an option you may want to consider for your next project.

Lift Station Basics

In an ideal gravity fed wastewater collection system, sewage would flow downhill from its point of origin in residential or commercial areas to its final treatment plant destination.  Due to a number of factors including total distance, topography, geology, economics, etc., the ideal piping design is not always feasible.  Therefore, in most cases, sewage flows downhill to a lift station where it collects and then is pumped to a higher elevation in order to begin its downhill journey again. Continue reading “Lift Station Level Sensing”

Sump Level Make-Up Water Controls in Wet Chemical Scrubbers

Maintaining efficiency in wet chemical scrubbers has become one of the most important missions of current APC facilities due to urban growth and plant expansion/modernization projects as good stewards of the community. Systems often run above the 90% efficiency mark with the help of accurate make-up water control instruments. Continue reading “Sump Level Make-Up Water Controls in Wet Chemical Scrubbers”

Dwyer Instrumentation at Steamfitters 449 Training Center

Steamfitters 449 is a union training center that represents nearly 2,700 union-trained steamfitters and are affiliated with the United Association of Journeymen and Apprentices of the Plumbing and Pipefitting Industry of the United States and Canada.

According to the their website, members are highly trained craftsmen who fabricate, install, and service piping systems. Their craftsmen may be found on job sites involving single-family homes, garden and high-rise apartment buildings, supermarkets, food warehousing and processing facilities, power plants, chemical installations, factories, public buildings, and healthcare facilities.

Continue reading “Dwyer Instrumentation at Steamfitters 449 Training Center”

Pressure Transmitters Used for Pump Skids

We recently met with Aaron, a customer working on a project in West Virginia who needed to replace pressure transmitters on water transfer pump skids.

The transmitters had been installed on the discharge line, and were outside exposed to the elements. The transmitters had plastic connectors which had a tendency to degrade over time due to the wind, rain, and sun, leading to premature failure. Without functioning pressure transmitters, the pump skids themselves would shut down and limit water transfer operations. Continue reading “Pressure Transmitters Used for Pump Skids”

Measuring Flow with Piston Displacement Meters

If you’re looking to purchase a new water meter, it can be hard to discern what type of meter you should pick. There are many things to consider, from the body material to the outputs to whether any approvals are required. One of the most important considerations for selecting a meter for your application is how the meter will be installed, as certain technologies can limit the meter’s installation orientation. For example, multi-jet meters measure flow by generating multiple jets of water against an impeller in an internal chamber. As the impeller rotates, the flow is totalized on the meter face. In order to meet the stated accuracy, multi-jet meters must be installed horizontally. If a multi-jet meter is installed vertically, the impeller will not rotate correctly and the readings will not meet the stated accuracy specification.  Continue reading “Measuring Flow with Piston Displacement Meters”