press technology

Imagine threading or welding 4″ carbon steel pipes, 40 feet in the air. Sounds difficult, time-consuming and potentially dangerous.

All those pitfalls were avoided when a crew in Michigan used Viega MegaPressG fittings to pipe a new bean-roasting facility. The result was clean, attractive piping, a quick turnaround on project time, plus happy workers and owners.

Viega recently added MegaPressG fittings in sizes 2½” to 4″ to its lineup, and Schreiner Mechanical out of Frankenmuth, Michigan, was the first to install them, putting a couple dozen of the larger-diameter fittings into a new build in Gilford.

The project that Steve Schreiner, owner of Schreiner Mechanical, and his crew went to work on was a soybean-processing facility. The soybeans are roasted and crushed, then the oil is removed and used for biodiesel fuel and other applications. The remaining product is used to feed dairy cattle, leaving zero waste.

“What the plant does is unbelievable,” Schreiner said. “It’s favorable to the economy, and the oil can be used for several different products. There’s no waste.”

At first, Schreiner Mechanical was asked to do some plumbing in the office of the plant. Then the project, and need for Viega fittings, started to grow. The contractor was tasked with creating a gas main and system
to supply the gas for the burners that roast the soybeans, plus they needed to plan for the plant’s future growth.

“The burners that are used are about 12 million BTU each, so they needed a high-pressure gas system in the plant feeding these machines,” Schreiner said. “That’s quite a large capacity, and in the future they’ll potentially have three more of these burners, so this gas system had to be designed to feed a tremendously large system.”

To do that, Schreiner Mechanical created a manifold with 4″ gas lines. Those lines work their way down to 2″ in size throughout the plant. It was the perfect place to put MegaPressG in larger-diameter sizes to work.

“Lines run throughout the plant for gas feeding the furnaces and rooftop units feeding other areas of the building,” Schreiner said. “There is probably about 500 feet of gas line with Viega fittings in this building.”

Schreiner will tell you he is “a Viega guy,” and when he began working on this project he was excited to hear that MegaPressG fittings in the larger sizes were on their way to market. 

“If we’d had to thread this, it would have changed the whole philosophy on how to do things,” Schreiner said. “It would have made things 10 times more difficult, being 40 feet in the air, so we would have had to change the installation, plus it would have tripled or quadrupled the labor intensity. We’re talking about lift rentals and all things that come into play, plus the costs incurred for that, if we’d done it a different way than pressing. Threaded pipe would have been absurd.

“I’m excited that by using MegaPressG on this project, it was a time saver, a labor saver and safer than welding. The injury factor that can come up with different products is much bigger than with pressing. We would have had guys on the ground cutting and pre-fabbing pieces and then going up and down, but pressing in the air is much easier.”

In addition to providing the gas to the burners for the roasting in the plant, 2″ carbon steel lines with MegaPress fittings were also used for the oil line, moving the extracted crude oil from the beans into tanks.

Schreiner’s team is set up with Ridgid tools, and he said he feels that Ridgid and Viega together are the perfect combination.

“The Ridgid tool was a huge part of this successful application,” he said. “I’m passionate about the products I use, and when I find a good one, I stick with it.”

Viega District Manager Mike Norgan brought out the MegaPress XL PressBooster tool for Schreiner’s crew to use on the larger-diameter MegaPressG fittings, and Schreiner said it was simple to use.

“There was nothing more than smiles after using the tool,” he said. “Along with the large-diameter rings, it was easy and not cumbersome to use. Being able to press 12 or 14 large fittings in less than an hour is unbelievable.

“I tell people, ‘Look at what can be done [using Viega products]. This can be you and it’s this easy,’” he added. “Everybody’s hands are clean, there are no contaminants in the system, and there’s a lot to be said about that, having a contaminant-free system. When you have solder or threading oils or shavings, you have a high chance of contaminants, but with Viega, that chance is zero. I just cannot say enough about Viega. What we accomplished on this project with it is amazing.”

When millions of gallons of water are traveling through your piping system every month, it’s bound to put wear and tear on the system. The folks at Model Linen Service in Ogden, Utah, realized that huge volumes of water were doing a number on their copper; so in a new laundry facility building, they incorporated stainless pipe instead. 

Then, in looking at options for connecting the 3” and 4” pipe, they discovered Viega’s ProPress Stainless fittings and thought it could be a better option than threading. 

“ProPress made the day!” said Ryan Thon, Chief Engineer at Model Linen. “I’ve been using copper over the years and just found that I wasn’t getting the life out of it. We get so much water volume through the pipes that it wears out the copper. So we decided to go with the Schedule 40 stainless.” 

Model Linen services about 700,000 pounds of linen a week. Their main business in the facility where the ProPress fittings are located is restaurant service items like bar towels and floor mats. Running at capacity, Model Linen needed to expand, so they built a 19,000-square-foot facility bordering the original main plant. 

When Thon and his crew started on the building in April 2018, circumstances beyond his control meant they had to start threading instead. He said the first quarter of the building was threaded. 

“There’s so much time and effort involved with threading Schedule 40 pipe,” he said. “Then [when circumstances changed], I was able to get the press tool and jaws. And I’d say it probably took me the same amount of time to press the other three-quarters of the building with Viega as it did to thread the first quarter! 

“It’s a big facility and it took months of time—but pressing made it so much easier. I’d probably still be threading right now!” Thon said with a laugh. 

In the building, there is a 4” water main that brings in the cold water. It’s softened and goes into an exchanger. Thon explained that old, dirty water coming from the washers is recycled and feeds through the exchanger to work as a heater. It raises the city water up to about 95 degrees without any heating elements. 

“It’s hot water. Why let it go straight into the sewer?” Thon said. “All we’re using is the radiator and pumps to pump it, but we re-water to get our tempered water.” 

From there, half of the tempered water goes into the washers and the other half goes through a heater to make hotter, 165-degree-water. 

Model Linen does a good job in saving as much water and energy as possible. In addition to using the reclaimed hot water to heat the incoming water supply, the washer’s final-rinse hot water is also reused. 

“At that point with the last rinse, the soap is out and it’s clean, so that water drops into its own trench and recirculates to be used in the first part of the wash cycle with the detergent,” he explained. “It’s a pretty cool process instead of using more clean city water.” 

In total, nearly 100 Viega fittings were used in Model Linen’s new building, ranging in size from 1¼ ” adapters to 4” fittings in various configurations. 

Thon said he’s confident the ProPress Stainless fittings will hold up well to the demands of Model Linen’s system. He said there are not many chemicals that run through the pipes, just a mild softener. 

One of the concerns in piping a laundry facility are issues with water hammer, Thon said. 

“If the washer has a 3” valve open, that’s a lot of water going in quickly; and if it shuts off too quickly, then it shakes the whole system,” he said. “Luckily we have good equipment dialed in well so that they close slowly. There has been no movement with the pipes at all—I was impressed.” 

Thon was so pleased with Viega fittings that they’ll be appearing in Model Linen’s other building a few miles down the road, where all of their hotel linens are serviced. He said he purchased a “whole stack of 3” ProPress Stainless” and was getting ready to tear out all the old copper and put in stainless piping at that facility, too. 

“Pressing these fittings down saved the day,” he said simply. “I’ve been pretty impressed with the whole thing.”