Dairy PT series

Summary

Product Identification

The Veolia Dairy PT Series consists of polyethersulfone ultrafiltration membrane elements with a 5,000 molecular weight cut-off (MWCO). These elements are designed for protein concentration, typically up to 30% solids, from milk, whey, and gelatin, where protein retention is crucial.

Key features include:

• Membrane: P-Series, Polyethersulfone
• Outerwrap: Durasan* patented
• Parts: Polysulfone
• Compliance:
  • FDA Regulations relevant sections of 21CFR
  • EU Framework 1935/2004/EC
  • Halal & Kosher certification

Mechanical / Hydraulic

The Dairy PT Series elements are available in various configurations, distinguished by spacer size and active area. All models feature a Cage outer wrap.

• DAIRY PT3838C30: Spacer 30 mil (0.76 mm), Active Area 69 ft² (6.4 m²), Part Number 1207675
• DAIRY PT3838C50: Spacer 50 mil (1.27 mm), Active Area 55 ft² (5.1 m²), Part Number 1207336
• DAIRY PT6338C30: Spacer 30 mil (0.76 mm), Active Area 217 ft² (20.2 m²), Part Number 1226552
• DAIRY PT6338C50: Spacer 50 mil (1.27 mm), Active Area 168 ft² (15.6 m²), Part Number 1226522
• DAIRY PT6338C65: Spacer 65 mil (1.65 mm), Active Area 129 ft² (12.0 m²), Part Number 1222964
• DAIRY PT8038C30: Spacer 30 mil (0.76 mm), Active Area 345 ft² (32.0 m²), Part Number 1240081
• DIARY PT8038C50: Spacer 50 mil (1.27 mm), Active Area 263 ft² (24.4 m²), Part Number 1230690
• DAIRY PT8038C65: Spacer 65 mil (1.65 mm), Active Area 202 ft² (18.8 m²), Part Number 1230833

For detailed dimensions and weight of each model (A, B, C dimensions and boxed weight), please refer to the official PDF datasheet.

Operating Limits

• Typical Operating Pressure: 80-135 psi (555 – 931 kPa)
• Typical Operating Flux: 5 – 20 GFD (8 – 34 LMH)
• Maximum Operating Pressure: 200 psi (1,379 kPa)
• Maximum Temperature: 122°F (50°C)
• Clean Water Flux (CWF): 47 GFD (80 LMH) @ 30 psi & 50°C (CWF can vary ±25%)
• Operating pH Range: 2.0-10.0
• Maximum Pressure Drop:
  • Over an element: 15 psi (103 kPa)
  • Per housing: 60 psi (414 kPa)

Feed Water

• Chlorine Tolerance: 5,000 ppm days

CIP and Disinfection Parameters

For Cleaning-in-Place (CIP) and disinfection, the following parameters are specified:

Chlorine Disinfection:

• Recommended chlorine concentration and contact time: 180 ppm for 20 minutes maximum during chlorine caustic cycle at a maximum temperature of 50°C (120°F).
• pH must be stabilized at 10.5 - 11.0 before chlorine addition.
• Membrane element surface must be free of catalyzer presence (e.g., iron or other metals), as they accelerate membrane degradation with oxidizers like chlorine or hydrogen peroxide.

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

Official datasheet (PDF)

PDF datasheet