Our experience in the industry makes our family-owned company a dependable leader in water pump systems. A sewage ejector pump is a submersible centrifugal pump that moves liquid and soft solid waste along the residential pipework into the main community sewer line. Zoeller Pump Company has designed and manufactured pump systems since 1939. Locate a Trusted Distributor in Your Area
EJECTOR PIT MANUAL
Manual pumps come without a switch, while automatic pumps feature float switches to start the pump at specified times. Most pumps have manual or automatic options. We also offer models with explosion-proof motors for hazardous locations and other heavy-duty applications. Residential properties might use a small yet durable motor with lower horsepower, while greater demands require more powerful non-clog pumps. The impeller veins do not touch the liquid, reducing the chances of clogs. Our pumps include vortex impellers, which provide the most reliable sewage drainage by using centrifugal force to push fluid against the pump volute. Contractors can choose from various pump options, from powder-coated cast iron pumps to economical thermoplastic sewage ejector pumps that are ideal for new construction. Zoeller Pump Company sells submersible and non-clog pumps for residential and commercial applications.
EJECTOR PIT SOFTWARE
We appreciate that Customers often purchase this software to help with trouble shooting of a specific ejector If anything, slightly conservative values have been used.įeedback and suggestions will be gratefully received. efficiencies, based on normal practice and calibration versus installed ejectors. Thermodynamic and fluid dynamic equations These are based on standard assumptions for angles and ratioĪnd may not be identical to your actual installed units.Įzejector programs includes the following: Sump Pump Repair & Installation in Columbus, OH For reliable, honest sump pump services, you can always depend on The Rooter Works Plumbing and Drains. Preliminary dimensions can be viewed – see below. The Ezejector results include a graph showing how the entrained gas flow rate will (see below) change depending on the entrained gas pressure, for at fixed discharge pressure.This allows you to estimate the impact of entrained gas flow rate on the suction pressure.The program inclues a feature to evaluate the impact of increased back pressure. Typical values will depend on the motive gas pressure and the entrainment ratio. Note that efficiency is low for an ejector. Where the compression ratio is high, it may be be more efficient to use more than one ejector stage.The overall ejector efficiency is calculated. Convergence percent (normally >99%) is supplied to confirm that the program has run successfully. The motive gas Mach No is provided for information.
These are more indicative of the response of a specific ejector to changes in inputs. But exactly what is an ejector pit These pumps are similar to regular sump pumps except that they pump (and sometimes grind) sewage from toilets and not. Therefore ejector curves at fixed ejector geometry are calculated at the design discharge pressure and an increased discharge pressure (see 3.2). Thus the results in the tables above for different gas flow rates, pressures or temperatures do not represent the performance of a specific ejector. If for example the entrained gas flow rate is changed, the mixing diameter will also change – which will have some impact on the discharge pressure. The program calculates the best nozzle and mixing diameters based for the input values. Mixing section diameter is a function of the preceding and entrained gas flow rate, pressure, temperature & molecular weight. Motive nozzle diameter is a function of motive gas flow rate, pressure, temperature & molecular weight. Our basement had an old bathroom in one corner that has been removed and theres an old, empty ejector pit that handled the bathroom waste. The nozzle and mixing section diameter are calculated. The key results and supplementary results are shown below. In the updated revision of the software, flow rate input units should be selected as either kg/hr or Nm3/hr. The inputs required are shown in the table below. Please understand that this program is for your use only and prevent access by any outside party.
EJECTOR PIT CODE
The USER CODE will be supplied to you separately and must be entered every time you run the program. Transmitted as XXX.jpg to allow electronic transmission.
This is a Visual Basic program with Interactive forms.
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