Evacuation line for hydraulic piston pumps
Accessories and options to build underground evacuation lines, to secure and preserve them from premature wear.
Sacrificial anodes
Very low voltage of electricity travels through the ground. The amount of electricity that can be carried by the ground depends on the type of soil. For example, damp hard clay soil has a high conductivity potential and dry coarse sand has virtually no conductivity potential.
Since electricity travels through the ground, if it finds a steel evacuation line, it will use it for whatever distance suits it. When electricity leaves the steel evacuation line, a chemical reaction occurs. This chemical reaction is the underground corrosion, which can be fast or slow depending on the type of soil in the area.
GEA recommends the use of a sacrificial anode on the equipment and at every 120 feet (36.5 m) on steel evacuation line.
- Sacrificial anodes are made of material that corrodes faster than steel. It is designed to protect steel pipes and elbows against corrosion.
- Anodes gradually corrode away over many years instead of the evacuation line.
- Once corroded away, if the anodes are not replaced, the corrosion will start its process on the evacuation line.
- Properly installed, sacrificial anodes may last up to 20 years.
Air flush
- A riser pipe is required every 200 feet (60 m).
- Some evacuation lines require extra risers where potential clogging can occur (i.e. sharp bend, long ascendant slope, etc.)
- A 6" (152 mm) gate valve is mandatory if the top of the manure reservoir is higher than the cap of the riser.
- Available for 6 5/8", 8 5/8", 12 3/4" and 16" (168, 219, 324 and 406 mm) evacuation line.
Flapper Valves
- Available for 12 3/4" and 16" (324 and 406 mm) evacuation line.
Downloads
GEA Insights
How Carlsberg keeps 10,000 valves in play
At Carlsberg’s Fredericia brewery, GEA VARIVENT valves are part of a long-game strategy. By reusing core valve bodies, retrofitting actuators and control tops, and planning maintenance around brewing seasons, Carlsberg extends asset life, reduces downtime and supports its ambitious water and sustainability targets.
Fifty dairy robots, one vision for the future
In eastern Czechia, agricultural engineer Jan Urban is transforming dairy farming with GEA’s DairyProQ – a 50-stall automated milking system that boosts efficiency, animal welfare and sustainability, setting a new standard for modern milk production.
GEA products: pathway to resource efficiency
Costs for energy, water and raw materials are rising with efficiency becoming a decisive competitive factor. GEA identifies more resource-efficient successor solutions in a transparent way and has them independently validated. Now a portfolio of more than 50 products, what does it take to make the grade and how do customers benefit? GEA insiders share why these innovations are so transformative.
