Teflon series0 pages

TEFLON® SERIES
Turbine Flowmeters
for Corrosive Service
Product Bulletin HO-TF-112E
The Turbine Flowmeter Company
OUTSTANDING FEATURES
♦
Recommended for corrosive service and ultrapure water
flow applications.
♦
Suitable for clean liquid service at one centistoke.
♦
Flow rate capability from 0.35 to 485 GPM, (¼” through 3”
sizes).
♦
Provides frequency output.
♦
Mates with RF flanges per ANSI or DIN flanges.
GENERAL DESCRIPTION
Our standard Teflon® turbines are supplied with PTFE for all wetted parts manufactured from blue-dyed
Teflon® with the exception of the shaft which is normally manufactured from poly-ether-ether-ketone (PEEK)
and the bearing and thrust washers which are a PEEK/PTFE blend. Please confirm PEEK is compatible with
the intended service fluid. Other options are available.
Magnets are embedded in Teflon® blades of rotor assembly. Within the Hoffer turbine flowmeter, the flowing
media engages a vaned rotor causing it to rotate at an angular velocity proportional to flow rate. The pickup
coil senses the spinning motion of the rotor through the housing and converts it into a pulsing electrical
signal. Summation of the pulsing electrical signal relates directly to the total flow, while the frequency is
linearly related to flow rate. Available with flanged end fittings including RF per ANSI and DIN types. Size
selections available are ¼” to 3”. The Teflon® Series offers a linearity of ±1% of reading and a repeatability of
±0.1% of reading. The temperature rating on the Teflon® Series is 35ºF minimum and 125ºF maximum.
Maximum pressure is 300 PSIG.
SIZE SELECTOR CHART FOR TEFLON® SERIES
METER SIZE
LINEAR AND REPEATABLE
TECHNICAL DATA
(IN INCHES)
GPM
LPM
Weight (lbs.)
Overall Meter
Length
K-Factor
(±10%)
1/4
3/8
1/2
5/8
3/4
1
1¼
1½
2
2½
3
.35 - 3.5
.75 - 7.5
1.25 - 9.5
1.75 - 16
2.5 - 20
4 - 45
6 - 70
8 - 100
15 - 170
37.5 - 300
60 - 485
1.3 -13.2
2.8 - 28.4
4.7 - 36
6.6 - 60.6
9.5 - 76
15 - 170
23 - 265
30.3 - 378
56.8 - 643.5
142 - 1135
227 - 1836
4.5
4.5
4.5
6
6
6
8
8
13
22
27
2.453”
2.453”
2.453”
3.25”
3.25”
4.437”
6”
6”
6”
7”
10”
1200
1000
800
500
375
124
60
40
17
6
3.8
®Teflon is a registered trademark of E.I. DuPont de Nemours and Company, Inc.