Watts W-4040-TW User Manual
Membranes, Watts, Residential membranes (thin film composite)
®
WATER QUALITY & CONDITIONING PRODUCTS
Watts
®
residential membranes (thin film composite)
Part Number
Application
O.D.
Length
Capacity
No. Per
(GPD)
Case
W-1812-24
Tap water
1.8”
11.75”
24
25
W-1812-36
Tap water
1.8”
11.75”
36
25
W-1812-50
Tap water
1.8”
11.75”
50
25
W-1812-75
Tap water
1.8”
11.75”
75
25
W-1812-100
Tap water
1.8”
11.75”
100
25
Note: W-1812-100 membranes are packaged in preservative and should be kept in a cool environment if stored for a prolonged period of time.
Watts membrane specifications
Data
W-1812-24
W-1812-36
W-1812-50
W-1812-75
W-1812-100
Membrane type
TFC
TFC
TFC
TFC
TFC
Material
Polyamide
Polyamide
Polyamide
Polyamide
Polyamide
Charge
Negative
Negative
Negative
Negative
Negative
Configuration
Spiral-wound
Spiral-wound
Spiral-wound
Spiral-wound
Spiral-wound
Salt rejection
96%
96%
96%
96%
96%
Max. operating temp.
113˚F / 45˚C
113˚F / 45˚C
113˚F / 45˚C
113˚F / 45˚C
113˚F / 45˚C
Max. operating pressure
125 psi
125 psi
125 psi
125 psi
125 psi
Max. turbidity (NTU)
1
1
1
1
1
Max. SDI
5
5
5
5
5
pH range
3-10
3-10
3-10
3-10
3-10
Flux
24 gpd
36 gpd
50 gpd
75 gpd
100 gpd
Note: Specifications based on 77˚F (25˚) temperature and 60 psid pressure.
A
FEED
B
E
C
D
PERMEATE
CONCEN TRAT E
BRINE SEAL
O-RING
OUTER TAPPING
CONCENTRAT E
Dimensions: A = 0.67”; B = 0.87”; C = 11.8”; D = 1.77” and E = 0.87”.
Watts
®
membranes
We offer a complete line of residential and commercial membranes for tap, brackish and sea
water applications. Our thin film composite membranes meet or exceed industry standards, with
salt rejection rates ranging from 96 to 99.5 percent. Residential membranes are listed below.