Datasheet summary
PX Pressure Excharger
PDF datasheet mirror for PX Pressure Excharger (ERI Pumps). Verify with OEM before design.
Summary
Product Overview
The PX Pressure Exchanger family of products is an energy recovery device designed for seawater reverse osmosis (SWRO) processes. It captures hydraulic energy from the high-pressure reject stream and transfers it to low-pressure feed water.
Key features and benefits include:
- Up to 98% peak energy efficiency.
- Consumes no electrical power, drastically reducing overall energy consumption.
- Can reduce plant power consumption by as much as 60% due to reduced pumping requirements.
- Made of aluminum oxide, a high-grade ceramic that is three times more abrasion-resistant than steel.
- Designed for continuous operation in harsh conditions with only one moving part.
- Expected life of upwards of 25 years.
- Virtually no scheduled maintenance and zero unplanned downtime.
- Self-regulating speed adjustment with flow.
- No pulsation, valves, pistons, or timers.
- No need for complicated data communication systems.
- Smallest installed footprint compared to other isobaric energy recovery devices (ERDs).
PX Prime™
The PX Prime is an advanced energy recovery device engineered for even less fluid mixing. It accommodates flows greater than 300 gpm (68 m³/hr).
Key features of the PX Prime include:
- First PX available with no upfront costs (through an innovative financial model).
- Less fluid mixing.
- Industry leading efficiency.
- Greater capacity.
PX Q Series
The PX Q Series, including the PX Q300 and PX Q260, offers modular design for installation in small, medium, and large plants, pilot plants, brackish water, and mobile marine units. Units are typically used in parallel for larger systems.
Specific features of the PX Q300:
- Compact footprint.
- Robust capacity of 300 gpm.
- Energy efficiency up to 98%.
- Noise reductions down to below 81 decibels.
Performance Specifications
The following table outlines minimum guaranteed efficiencies and flow ranges for various PX models. Figures are calculated using a "mid-flow" range.
| PX Model | Minimum Guaranteed Efficiency* | Flow Range per Unit (brine flow) |
|---|---|---|
| PX-Q300 | 97.2% | 45.4 - 68.1 m³/h |
| PX-Q260 | 96.8% | 40.8 - 59 m³/h |
| PX-260 | 96.8% | 40.8 - 59 m³/h |
| PX-220 | 96.8% (@45.4 m³/h) | 31.7 - 49.9 m³/h |
| PX-180 | 96.7% (@36.3 m³/h) | 22.7 - 40.8 m³/h |
| PX-140 | 94.8% (@22.7 m³/h) | 20.4 - 31.7 m³/h |
| PX-90 | 96.0% (@15.8 m³/h) | 13.6 - 20.4 m³/h |
| PX-70 | 95.3% (@11.3 m³/h) | 9.08 - 15.8 m³/h |
| PX-45 | 94.0% (@7.9 m³/h) | 6.81 - 10.2 m³/h |
| PX-30 | 93.4% (@5.6 m³/h) | 4.54 - 6.81 m³/h |
*These minimum guaranteed efficiencies are based on Energy Recovery’s factory performance test standards. Models include Q300, Q260, 260, and 220.
Mechanical / Hydraulic
- Housing: Industry standard FRP (Fiber Reinforced Polymer).
- Rotor: Alumina (aluminum oxide), 3x more abrasion-resistant than steel.
- Wetted metal components: Titanium, super duplex, and super austenitic stainless steel.
Disclaimer: This summary is based on the provided text extract and may not include all figures, footnotes, or the latest revisions from the official OEM PDF datasheet. Contractual data for any project must always match the specific OEM PDF revision used for that project.
Official datasheet (PDF)
Curated from selected public technical reference material for discovery and preliminary comparison. This summary is not a substitute for a current certified manufacturer datasheet. Verify revisions and design limits before use.