About Tuthill Meters
We thank you for purchasing aTuthill Meter for liquid
measurement service. Tuthill Meters,formerly Fluid
Power Products, is now atrade name of Tuthill Transfer
Systems. Fluid Power Products was established in
1980. Sinceits inception, the company has been
dedicated to manufacturing cost-effective, high
performance flow metering devices for petroleum,
industrial, commercial and municipal service.
Our facilities include computerized order entry and inventory
control, so that you are assured of accurate and prompt
de-liveries. Furthermore, our production personnel ensure
that each order, regardless of size, receives individual
attention.
Constant attention to new product development and produc-
tion design, our high standards of manufacture and final
testing are the reasons why Tuthill Meters meet your
most demanding requirements. With the ‘Waveform’
oval gear (2003 patent) meter accuracy is better than ever
before.
Our meters are used in batching, blending, process control
and to dispense fluids in liquid handling facilities throughout
the World. Service includes gasohol blends, bio-diesel, LPG
and special formulation racing fuels.
Principle of Operation
Positive Displacement meters have a measuring chamber,
where inlet & outlet are separated by rotors, a rotating
element or sliding vanes. As the liquid passes through the
flow meter, it causes the rotors/element/vanes to turn,
which forms the basis for volumetric measurement.
The Oval Gear metering principle is based on two elliptical
(oval) gears, which turn on center on two horizontal shafts
inside a measuring chamber formed by two overlapping
cylinders. The oval gears have meshing teeth along their
entire circumference, ensuring that
the gears will maintain correct position
in relation to each at all times,
without the use of timing gears.
The volume being transferred from the inlet to the outlet side
(= volume being measured) forms between the oval gear
and side of the measuring chamber, alternately in the upper
and lower half of the measuring chamber. In a full 360°
rotate, four such known volumes are released to the
downstream side of the flow meter.
.
With precision machining and close internal tolerances, the
slippage is minimal for superior linearity (accuracy) over a
broad turn-down ratio.
The TS Series meter is designed to provide:
F●● Assy: Electrical pulse signal to an electronic
register installed on the flow meter.
W●● Assy: Electrical pulse signal to a remote
electronicregister.
The flow meter is 100% gland-less with static O-ring seals
only. An internal magnet turns in the vertical plane; a sensor
mounted in flow meter end cover reads changes in the mag-
netic field, and generates 64 pulses per 360° rotation . Sev-
eral different signal types are available, to ensure signal
compatibility with all electronic registers.
Fluid Compatibility
This Tuthill Meter assembly is specifically designed for
LPG service. Do not change service liquid, without
consulting with your authorized Tuthill Meter distributor.
Model Nominal Capacity
TS10A 40 GPM 150 lpm In LPG service:
Normal turn-down is 5:1
Operation at 50-65% of capacity is considered normal.
Operation in excess of nominal capacity will cause
excessive wear or premature failure.
Materials
Case : Anodized aluminum
Rotors : PPS with carbon bearings,
Posts : HC303SS
Seals : UL Buna & VitonTM
Pressure Rating with 5:1 Safety Factor
350 PSI at 100°F = 24 BAR at 40°C
Temperature Rating
-40°F to +158°F = -40°C to +70°C
3
TS Series, Principle of Operation
Only 2 moving parts.
Patented ‘Waveform’ oval gears = sustained accuracy with a minimum of maintenance.
No metal-to-metal contact in measuring chamber or in bearings.
The lowest differential pressure values amongst rotary PD meters.
