ACM 4

Summary

Product identification

The TRISEP® ACM4 series consists of Low Energy Brackish Water RO Elements. These polyamide spiral-wound membranes are designed for versatile use in a wide variety of water purification and process applications, offering high solute rejection at moderately lower pressure.

• Membrane Type: Polyamide
• Stabilized Salt Rejection: 99.3%
• Minimum Salt Rejection: 98.8%

Operating limits

• Maximum Operating Pressure: 41 bar (600 psi)
• Maximum Operating Temperature: 45°C (113°F)
• Cleaning pH Range: 1.0 – 12.0
• Chlorine Tolerance: < 0.1 ppm (Pretreatment is recommended for the removal of free chlorine and other oxidizing agents to prevent damage to membranes.)
• Maximum Pressure Drop: 1 bar (15 psi) per element; 4 bar (60 psi) per housing
• Maximum SDI₁₅: 5.0
• Maximum Turbidity: 1 NTU

Mechanical / hydraulic

Design Information

The following models feature a fiberglass outer wrap and diamond-shaped feed spacers. All models include anti-telescoping devices (ATDs) attached to the ends of the element and one brine seal. All 4040 and 8040 models include one interconnector.

Performance is based on test conditions: 2,000 ppm NaCl, 15.5 bar (225 psi), 25°C (77°F), 15% recovery, pH 8.0, 30 minutes operation. Flow rates will be no more than 15% below the values shown.

• TRISEP® PLT 2540-ACM4-31
  • Part Number: 164040251
  • Permeate Flow: 3.8 m³/day (1,000 GPD)
  • Membrane Area: 2.4 m² (26 ft²)
  • Feed Spacer Thickness: 31 mil
• TRISEP® PLT 4040-ACM4-31
  • Part Number: 161050442
  • Permeate Flow: 12.7 m³/day (3,350 GPD)
  • Membrane Area: 7.9 m² (85 ft²)
  • Feed Spacer Thickness: 31 mil
• TRISEP® 4040-ACM4-TSA
  • Part Number: 164040441
  • Permeate Flow: 13.1 m³/day (3,450 GPD)
  • Membrane Area: 8.2 m² (88 ft²)
  • Feed Spacer Thickness: 31 mil
• TRISEP® 8040-ACM4-TSA
  • Part Number: 164040841
  • Permeate Flow: 55.3 m³/day (14,600 GPD)
  • Membrane Area: 33.9 m² (365 ft²)
  • Feed Spacer Thickness: 34 mil
• TRISEP® 8040-ACM4-UWA
  • Part Number: 164040941
  • Permeate Flow: 60.6 m³/day (16,000 GPD)
  • Membrane Area: 37.2 m² (400 ft²)
  • Feed Spacer Thickness: 28 mil

Physical Dimensions

For Female elements, "Dim. C" is the Inner Diameter. For Male elements, "Dim. C" is the Outer Diameter, and they also have a protruding permeate tube ("D") of 25.4 mm (1.0 in).

• TRISEP® PLT 2540-ACM4-31
  • Element Weight: 3 kg (7 lb)
  • Dim. A: 1,016 mm (40.0 inches)
  • Dim. B: 64 mm (2.5 inches)
  • Dim. C: 19.1 mm (0.75 inches)
  • Permeate Tube: Male
• TRISEP® PLT 4040-ACM4-31
  • Element Weight: 4 kg (9 lb)
  • Dim. A: 1,016 mm (40.0 inches)
  • Dim. B: 99 mm (3.9 inches)
  • Dim. C: 19.1 mm (0.75 inches)
  • Permeate Tube: Male
• TRISEP® 4040-ACM4-TSA
  • Element Weight: 4 kg (9 lb)
  • Dim. A: 1,016 mm (40.0 inches)
  • Dim. B: 99 mm (3.9 inches)
  • Dim. C: 19.1 mm (0.75 inches)
  • Permeate Tube: Female
• TRISEP® 8040-ACM4-TSA
  • Element Weight: 16 kg (36 lb)
  • Dim. A: 1,016 mm (40.0 inches)
  • Dim. B: 201 mm (7.9 inches)
  • Dim. C: 38.1 mm (1.50 inches)
  • Permeate Tube: Female
• TRISEP® 8040-ACM4-UWA
  • Element Weight: 16 kg (36 lb)
  • Dim. A: 1,016 mm (40.0 inches)
  • Dim. B: 201 mm (7.9 inches)
  • Dim. C: 38.1 mm (1.50 inches)
  • Permeate Tube: Female

Important Information

• Start-up: It is recommended to flush elements for 30 minutes at low pressure and discard permeate during the flush prior to operation. For a detailed procedure, refer to the Element Start-Up Guide – System Start-Up (TSG-O-005).
• Cleaning: TRISEP® membrane elements must be cleaned periodically for proper operation and to prevent membrane damage. Consult the Membrane Cleaning Guide – Water Application Elements (TSG-C-001).
• Storage: Proper storage is essential for TRISEP membrane elements to ensure proper operation and to prevent membrane damage. Refer to Element Storage Guides (TSG-O-009 & TSG-O-010).

Customizable Specialty Elements

MANN+HUMMEL Water & Fluid Solutions provides a full range of membranes and element designs for challenging water and process applications. Technologies include low-fouling RO, submerged UF, continuous high temperature, ultra-high pressure, and unique sanitary designs.

---

Disclaimer: This summary is based on the provided text extract. The original PDF may contain additional figures, footnotes, or revisions not present here. For contractual data, always refer to the specific OEM PDF revision used on your project.

Official datasheet (PDF)

PDF datasheet