Ir a contenido
Apoyo
Sitio técnico
Career

Koch

Request a Quote Ask a Question

AMI Membranes High Quality Membrane Elements
Koch Fluid Systems Membrane Replacements

Koch/Fluid Systems has discontinued production of the following membrane elements:

  • HR Series High Rejection Low Pressure Membrane Elements
  • XR Series High Rejection Thin Film Membrane Elements
  • ROGA Series Chlorine Tolerant Cellulose Acetate Membrane Elements
  • SW Series Seawater Membrane Elements. 

These membrane elements are no longer available for sale. We are happy to offer assistance in selecting replacements from other manufacturers. Please see the details tab below for recommendations.

HR Series - High Rejection Low Pressure Thin Film Koch Membrane Elements

Obsolete Membrane Model Recommended Replacement Specifications for Obsolete Models - For Reference Only
Size Permeate Flow Chloride Rejection Membrane Area Feed Spacer
(Dia." x L") GPD m³/d (ft²) (m²)
2540HR M-T2540A 2.5×40 750 2.8 99.40 27 2.5 31 mil
4040-HR-T M-T4040A 4×40 2,270 8.6 99.55 85 7.9 28 mil
4040-HR M-B4040A 4×40 2,270 8.6 99.55 85 7.9 28 mil
8040-HR-375  FILMTEC BW30-365 8×40 10,200 38.6 99.50 375 34.8 31 mil
8040-HR-400  FILMTEC BW30-400 8×40 11,000 41.6 99.50 400 37.2 28 mil
 8040-HR-400-34 FILMTEC BW30-400  8×40  11,000  41.6  99.55  400   37.2  34 mil
 8040-HR-440-28 FILMTEC BW30HR-440 8×40   12,100   45.8   99.55  440  40.9  28 mil

Test Conditions: 2,000 mg/l NaCl (700mg/l for 2.5”) solution at 225 psi (1,550 kPa) applied pressure, 15% recovery, 77°F (25°C) and pH 7.5 2540HR & 4040-HR-T are tape-wrapped elements. 4040-HR and 8” elements are fiberglass warapped.

XR Series – High Rejection Thin Film Koch Membrane Elements

Obsolete Membrane Model Recommended Replacement Specifications for Obsolete Models - For Reference Only
Size Permeate Flow Chloride Rejection Membrane Area Feed Spacer
Dia." x L") GPD m³/d (ft²) (m²) mil mm
4040-XR M-B4040A 4×40 2,200 8.3 99.75 85 7.9 28 0.7
8040-XR-375 FILMTEC BW30XFR-400/34i 8×40 9,800 37.1 99.75 375 34.8 31 0.8
8040-XR-400 FILMTEC BW30HR-440i 8×40 10,500 39.7 99.75 400 400 28 0.7

Test Conditions: 2,000 mg/l NaCl solution at 325 psi (2,240 kPa) applied pressure, 15% recovery, 77°F (25°C) and pH 7.5.  Fiberglass Wrapped.

ROGA Series – Chlorine Resistant High Rejection Cellulose Acetate Koch Membrane Elements

Obsolete Membrane Model Recommended Replacement Specifications for Obsolete Models - For Reference Only
Size Permeate Flow Chloride Rejection Membrane Area Feed Spacer
Dia." x L") GPD m³/d (ft²) (m²) mil mm
ROGA-4040-HR M-CB4040AD 4×40 1,700 6.4 98.0 80 7.4 31 0.8
ROGA-8040-HR-325 No Available Replacement 8×40 7,100 26.9 98.0 325 30.2 31 0.8

Test Conditions: 2,000 mg/l NaCl solution at 420 psi (2,900 kPa) applied pressure, 15% recovery, 77°F (25°C) and pH 5.7 Fiberglass Wrapped.

SW Series – Koch Seawater RO Membrane Elements (SWRO)

Obsolete Membrane Model Recommended Replacement Specifications for Obsolete Models - For Reference Only
Size Permeate Flow Chloride Rejection Membrane Area Feed Spacer
Dia." x L") GPD m³/d (ft²) (m²) mil mm
2540-SW M-S2540A 2.5×40 520 2.0 99.50 25 2.3 31 0.8
2540SWHF M-S2540A 2.5×40 700 2.6 99.50 25 2.3 31 0.8
4040-SW M-S4040A 4×40 1,330 5.0 99.75 74 6.9 31 0.8
8040-SW-335 FILMTEC SW30HRLE-370/34i 8×40 6,000 22.7 99.75 335 31.1 34 0.9
8040-SW-400 FILMTEC SW30HRLE-400 8×40 7,200 27.2 99.75 400 37.2 28 0.9

Test Conditions: 32,800 mg/l NaCl solution (isosmotic to ASTM standard seawater) at 800 psi (5,520 kPa) applied pressure, 7% recovery, 77°F (25°C) and pH 7.5