TMH20A-440

Summary

Product identification

The product line consists of Super Ultra Low Pressure Brackish Water RO Elements. The specific model highlighted is TMH20A-440.

• Membrane Type: Cross Linked Fully Aromatic Polyamide Composite

Nominal Performance (TMH20A-440)

(Based on specified test conditions)

• Product Flow Rate: 9,700 gpd (36.7 m³/d)
• Salt Rejection: 99.3%
• Membrane Area: 440 ft² (41 m²)
• Feed Spacer Thickness: 28 mil

Performance of Other Models in Series

(Based on specified test conditions)

• TMH20A-430:
  • Product Flow Rate: 9,500 gpd (35.9 m³/d)
  • Salt Rejection: 99.3%
  • Membrane Area: 430 ft² (40 m²)
  • Feed Spacer Thickness: 28 mil
• TMH20A-400:
  • Product Flow Rate: 8,800 gpd (33.3 m³/d)
  • Salt Rejection: 99.3%
  • Membrane Area: 400 ft² (37 m²)
  • Feed Spacer Thickness: 28 mil
• TMH20A-370:
  • Product Flow Rate: 8,200 gpd (30.9 m³/d)
  • Salt Rejection: 99.3%
  • Membrane Area: 370 ft² (34 m²)
  • Feed Spacer Thickness: 34 mil
• TMH10A:
  • Product Flow Rate: 1,900 gpd (7.2 m³/d)
  • Salt Rejection: 99.3%
  • Membrane Area: 87 ft² (8 m²)
  • Feed Spacer Thickness: 31 mil

Operating limits

• Maximum Operating Pressure: 365 psi (2.5 MPa)
• Maximum Feed Water Temperature: 113°F (45℃)
• Maximum Feed Water SDI₁₅: 5
• Feed Water Chlorine Concentration: Not Detectable
• Feed Water pH Range, Continuous Operation: 2-11
• Feed Water pH Range, Chemical Cleaning: 1-12
• Maximum Pressure Drop per Element: 20 psi (0.14 MPa)
• Maximum Pressure Drop per Vessel: 60 psi (0.4 MPa)

Feed water

• Test Conditions (for listed nominal performance):
  • Feed Water Pressure: 100 psi (0.69 MPa)
  • Feed Water Temperature: 77°F (25℃)
  • Feed Water Concentration: 500 mg/L NaCl
  • Recovery Rate: 15%
  • Feed Water pH: 7

Product water

• Minimum Salt Rejection: 99.0%
• Minimum Product Flow Rate:
  • TMH10A: 1,900 gpd (7.2 m³/d)
  • TMH20A-370: 8,200 gpd (30.9 m³/d)
  • TMH20A-400: 8,800 gpd (33.3 m³/d)
  • TMH20A-430: 9,500 gpd (35.9 m³/d)
  • TMH20A-440: 9,700 gpd (36.7 m³/d)

Mechanical / hydraulic

All dimensions are shown in Inches (millimeter).

• Overall Element Length: 40 inches (1,016 mm) for all models.
• Element Outer Diameter:
  • TMH20A series (370, 400, 430, 440): 7.9 inches (201 mm)
  • TMH10A: 4 inches (101 mm)
• Permeate Tube Outer Diameter:
  • TMH20A-370/400/430: 1.50 inches (38 mm)
  • TMH20A-440: 1.125 inches (29 mm)
  • TMH10A: 1.05 inches (26 mm) and 0.75 inches (19 mm)
• Flow Direction: Permeate is collected from the center tube. Feed water (F) enters from one end, and concentrated brine (B) exits from the other.

General Operating Information

• Elements are wet tested and stored in a 1% by weight sodium bisulfite solution, then vacuum packed in oxygen barrier bags. Alternatively, they may be treated with tested feed water solution and vacuum packed with deoxidant.
• For short-term storage, shipment, or system shutdown, elements should be immersed in a protective solution containing 500 - 1,000 ppm of sodium bisulfite (food grade) dissolved in permeate to prevent biological growth.
• Permeate from the first hour of operation shall be discarded.
• The customer is fully responsible for the effects of chemicals incompatible with the elements. Such use will void the Limited Warranty.

---

Disclaimer This summary is based on the provided text extract and may not include all figures, footnotes, or the latest revisions. For contractual data, please refer to the specific OEM PDF revision used for your project.

Official datasheet (PDF)

PDF datasheet