Enhancing EMD Electronics' Wastewater Management with Vanton Pump Technology
The Challenge
EMD Electronics' wastewater lift station transfers waste solutions from onsite sumps to a wastewater accumulation tank. The station ran on three Serfilco CPVC pumps that were not compatible with recent additions to the plant's products: the new chemistry attacked the CPVC, and the service also carries waste solutions with settled solids. EMD Electronics turned to RE Merrill and Associates for a robust replacement.
The Solution
RE Merrill recommended the Vanton Sump-Gard vertical centrifugal sump pump, model SG-PY1800HA, built in polypropylene for its chemical resistance and durability:
- Homogeneous, non-metallic polypropylene for all fluid-contact parts, compatible with the waste solution.
- A dynamically balanced, keyed closed impeller on a stainless steel shaft fully sleeved in polypropylene, handling settled solids effectively.
- Wet shaft bearings of ceramic inner against Vanite outer with an external water flush for lubrication.
- A strainer basket and water flush manifold for waste solutions carrying settled solids.
- A 5 HP, 230-460 volt, 3-phase, 60 Hz, 1750 RPM TEFC C-face motor.
The Results
The upgrade replaced three CPVC pumps with two Vanton polypropylene pumps and marked a significant improvement in EMD Electronics' wastewater management. The polypropylene proved an excellent match for the plant's chemistry, and the change delivered a more efficient system with better safety and reliability, uninterrupted operation, and reduced maintenance costs.
Why did the existing CPVC pumps have to go?
New products added to the plant introduced chemicals incompatible with the CPVC material of the three Serfilco pumps, and the service also carries settled solids the system had to handle without losing efficiency or reliability.
What replaced them?
Two Vanton Sump-Gard SG-PY1800HA vertical centrifugal sump pumps with all fluid-contact parts in homogeneous, non-metallic polypropylene.
How do the pumps handle settled solids?
A dynamically balanced, keyed closed impeller on a stainless steel shaft fully sleeved in polypropylene, plus a strainer basket and water flush manifold, with wet shaft bearings of ceramic against Vanite and an external water flush for lubrication.
What motor drives them?
A 5 HP, 230-460 volt, 3-phase, 60 Hz, 1750 RPM TEFC C-face motor on each pump.