Datasheet summary
ESPA-50
Engineering summary from PDF text extraction for ESPA-50. Verify every value with the OEM datasheet.
Summary
Product identification
- Membrane Element: ESPA-50
- Configuration: Spiral Wound
- Membrane Polymer: Composite Polyamide
- Feed/Brine Spacer Thickness: 16 mil (0.41 mm)
- Technology: HYDRAblock™ Inside! Antibacterial Technology
Product water
- Permeate Flow: 50 gpd (0.19 m³/d)
- Salt Rejection (Nominal): 99.0 %
- Minimum permeate flow for individual elements is 20 percent below listed flow.
Operating limits
- Maximum Applied Pressure: 300 psig (2.1 MPa)
- Maximum Chlorine Concentration: < 0.1 PPM
- Maximum Operating Temperature: 113° F (45°C)
- pH Range; Continuous: 2-10
- pH Range; Cleaning: 1-12
- Maximum Feedwater Turbidity: 1.0 NTU
- Maximum Feedwater SDI (15 mins): 4.0
- Maximum Feed Flow: 3 GPM (11 l/m)
- Minimum Ratio of Concentrate to Permeate Flow for any element: 5:1
- Maximum Pressure Drop for Each Element: 10 psi
Test conditions
Elements are wet tested for quality assurance using the following conditions:
- 500 PPM Softened Tap Water
- 65 psi (0.45 MPa) Applied Pressure
- 77 °F (25 °C) Operating Temperature
- 15% Permeate Recovery
- 6.5 – 7.0 pH Range (Data taken after 30 minutes of operation)
Mechanical / hydraulic
- Dimensions:
- A: 11.74 inches (298 mm)
- B: 1.78 inches (45.2 mm) *Fits 2”sch 40 PVC pipe
- C: 10.0 inches (254 mm)
- D: 0.68 inches (17.3 mm)
- Core tube extension E: 0.86 inches (21.8 mm)
- Dry Weight: 0.5 lbs. (0.23 kg)
- Core tube on brine seal side (dimension: “D”) is plugged. Permeate flow is through o-ring side of tube only.
- All membrane elements are supplied with a brine seal and o-rings.
- Most elements are packaged dry, sealed in polyethylene bags, and shipped in a cardboard box. Some elements are sealed in polyethylene bags containing less than 1.0% sodium meta-bisulfite solution and shipped in a cardboard box.
Disclaimer: This summary is based on extracted text and may not include all figures, footnotes, or the latest revisions. Contractual data for any project must match the OEM PDF revision used on 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.