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RCD - Ultra-Rugged Differential Pressure Flowmeter
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| RCD - Ultra-Rugged Differential Pressure Flowmeter |
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Special Features:
- 0.15-1 to 85-600 GPM Liquids
- 2.5-25 to 300-1700 SCFM Gases
- 1/2” to 3” Line Sizes
- Bronze or 316-Ti Stainless Steel
- Mechanical Indicator, Digital Indicator, Transmitters and Switches Available
- Custom Calibrations for Density and Viscosity
Specifications:
- Measuring -/switching range:
- 0.15-1 to 85-600 GPM water
- 2.5-25 to 300-1700 SCFM air
- Fitting: 1/2"-3" NPT
- Material: bronze, SS
- Max. pressure: 580 PSIG
- Max. temperature: 176°F/212°F
- Accuracy: ± 3 % FS
- Mech. pointer indicator, analog output,
Digital display, contacts
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GENERAL DESCRIPTION:
The RCD series differential pressure
flowmeter measures flows of liquids and
compressed gases using the orifice
principle. The orifice, located in the flow
body, generates a differential pressure
which varies with flowrate. The
differential pressure is applied to a
measuring bellows. The measuring
bellows is linked either to a mechanical
indicator, or to a hall effect sensor, which
is input to a compact or full featured
electronic display and controller.
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The unique design features a
single measuring bellows making its
accuracy unaffected by system pressure
fluctuations. The meter movement is a
single fulcrum lever design which is
simple, yet very reliable, with a minimum
of wear parts. The RCD is available with
bronze or stainless steel bodies ranging in
size from 1/2” NPT to 3” NPT. The
various electronic display and control
units offer a variety of options such as
digital or bargraph displays, adjustable
switches and flow transmitters. |
Specifications
Flow Ranges
Liquids: 1 to 7 GPM
through 100 to 600
GPM
Gases: 2.5-25 SCFM
through 300 to
1700 SCFM
Accuracy: ±3% of full scale
Repeatability: ±1% of full scale
Maximum Temperature:
Mechanical Display: 212°F
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Electronic Display: 176°F
Maximum Pressure: 580 PSIG
Maximum Pressure Drop: 5 PSI
Indicator Housing: Epoxy coated
aluminum,
polycarbonate,
NEMA 4X
Wetted Materials
Bronze Versions: Bronze, 316-Ti
stainless steel,
buna-n
SS Versions: 316-Ti stainless |
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RCD-Z Mechanical Indicator
- Flow Units
- Optional: LPM, M3/Hr, special scales on request
- Enclosure: Epoxy coated aluminum &
polycarbonate, NEMA 4X
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RCD-C Compact Electronics
- Input Power: 24 VDC ±20%, 80 mA
- Display: 3 digit LED
- Switch: PNP or NPN open collector, 300 mA Max. short circuit protected
- Flow Transmitter: 4-20 mA 3 wire
- Housing: 304 SS, NEMA 4X
- Electrical Connection: Micro-DC male, 5-pin
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RCD-K Digital & Bargraph
Display/Controller
- Input Power: 115 VAC, 24 VDC, 24 VAC, 48 VAC or 230 VAC
- Display: 3-1/2 Digit LED and Bargraph, 270°
- Relays: 2 SPDT programmable setpoint,
5 amps @ 230 VAC
- Flow Transmitter: 4-20 mA, 4-wire
- Enclosure: Epoxy coated aluminum &
polycarbonate, NEMA 4X
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Ordering Codes For Liquid Flowmeters
Ordering Codes For Gas Flowmeters
HOW TO ORDER
To Properly Specify the RCD Series:
- Choose the ordering code for the
desired range, materials and available
fitting size (RCD-1105SN4).
- Choose the ordering code for the
desired indicator type (e.g. mechanical,
compact, etc.)
- Choose the codes for the flowmeter
installed flow direction (required for
mechanical indicator only):
LT = Flow from left to right
RT = Flow from right to left
BL = Vertical up flow, dial on left
BR = Vertical up flow, dial on right
- Specify the process media:
Liquids - Specify the type of liquid. If
other than water, specify the viscosity
and the specific gravity or density. Use
option codes C or V as necessary. The
RCD will be calibrated for these
conditions.
Gases -specify the type of gas. Specify
the normal operating pressure and
temperature. The RCD will be calibrated
for these conditions.
NOTE: Calibrations for compressed
gases or liquids other than water may
change the measuring range from those
listed in the part number tables. Contact
Flow Network to determine the corrected flow
range which will be provided based on
operating conditions.
RCD Installation Piping Requirements
In order to guarantee accurate readings,
the RCD series must be installed with a
minimum of 10 diameters of straight
piping at the inlet and 5 diameters of
straight piping at the outlet. This straight
piping must be the same diameter as the
flowmeter fittings and should have no
bends, elbows, tees, valves or other
plumbing appurtenances.
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RCD-Z Mechanical Indicator
RCD-C Compact Electronics
RCD-K
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