GPI - Great Plains Industries FLOMEC OM Small Capacity Oval Gear Meters Data Sheet
PRODUCT CONFIGURATION
OM SERIES SMALL CAPACITY (OVAL GEAR METERS)
The FLOMEC® OM Small Capacity Oval Gear Meters have a
large ow range and offer the ability to handle a wide range of uid
viscosities with exceptional levels of repeatability.
FEATURES / BENEFITS
• High accuracy and repeatability, direct volumetric reading
• Measures high and low viscosity liquids
• No requirement for ow conditioning (straight pipe runs)
• Stainless Steel rotors (Optional PPS rotor for OM008 meter only)
• Quadrature pulse output option and bi-directional ow
• Optional Exd I/IIB approval (ATEX, IECEx)
• Only two moving parts
PRODUCT IDENTIFIER
OM = Oval Gear Meter
METER SIZE
004 = 1/8" (4 mm), 0.26-9.5 GPH (1.0-36 L/hr)
006 = 1/4" (6 mm), 0.5-27 GPH (2-100 L/hr)
008 = 3/8" (8 mm), 4-145 GPH (15-550 L/hr)
BODY MATERIAL
A = Aluminum
S = 316 Stainless Steel
N = Intermediate Pressure 316L SS (1450 PSI / 100 bar)
ROTOR MATERIAL / BEARING TYPE
00 = PPS (Not available for 300º F (150º C) meters) / No bearing
(Available for OM008 only)
51 = Stainless Steel / Carbon Ceramic (Standard on OM004 &
OM006, optional for OM008)
71 = Keishi cut Stainless Steel (For high viscosity liquids) / Carbon
Ceramic (Available for OM008 only)
O-RING MATERIAL
1 = FKM (Viton™) -5º F minimum (-15º C)
3 = PTFE encapsulated FKM (Viton™) 5º F minimum (-15º C)
4 = Buna-N (Nitrile), -40º F minimum (-40º C)
MAXIMUM TEMPERATURE LIMIT
-2 = 250º F (120º C) max.
-3 = 300º F (150º C) max. (Hall Effect)(Includes Stainless Steel
terminal cover)
-5 = 250º F (120º C) max. (includes integral cooling n)
-8 = 176º F (80º C) max. (meters with integral instruments, OM008
with PPS rotors)
PROCESS CONNECTIONS
1 = BSPP (G) female threaded (ISO 228)
2 = NPT female threaded
B = Bottom entry manifold (SS body only)
CABLE ENTRIES
1 = M20 x 1.5 mm (M16 x 1.5 mm for R4 options)
2 = 1/2" NPT
6 = 3 x 16mm drilled holes (for F instruments only)
2
1
3
4
5
6
7
8
INTEGRAL OPTIONS
__ = Combination Reed Switch and Hall Effect Sensor
SS = Stainless Steel terminal cover
RS = Reed Switch only - to suit Intrinsically safe installations
E1 = Explosion proof Exd IIB T3...T6 (Aluminum & Stainless Steel
meters) [IECEx & ATEX approved]
E2 = Explosion proof Exd I/IIB T3...T6 (Stainless Steel meters only)
[IECEx & ATEX mines approved]
QP = Quadrature pulse (2 NPN phased outputs)
Q1 = Explosion proof ~ Exd (with quadrature pulse) [IECEx & ATEX
approved]
HR = High Resolution Hall Effect output (004 – 006 only)
H1 =
Explosion proof ~ Exd with HR Hi-Res. Hall option (004-006 only)
R3 = RT12 Intrinsically Safe rate totalizer with all outputs (GRN
Housing) [IECEx & ATEX approved]*#
R3G = RT12 Intrinsically Safe rate totalizer with all outputs (GRN
Housing) [IECEx & ATEX approved] (with gallons calibration)*#
R4 = RT40 rate totalizer with backlit large digit LCD (Alloy housings
with facia)*#
R4G = RT40 rate totalizer with backlit large digit LCD (Alloy hous
ings with facia) (with gallons calibration)*#
R5
= RT14 backlit rate totalizer with all outputs (GRN Housing)*#
R5G = RT14 backlit rate totalizer with all outputs (GRN Housing)
(with gallons calibration)*#
E18 = E018 backlit rate/tot, pulse, 4-20mA, 10 point linearization,
HART, aluminium body [IECEx & ATEX approved]#
E19 = E018 backlit rate/tot, pulse, 4-20mA, 10 point linearization,
HART, stainless steel body [IECEx & ATEX approved]#
F18 = F018 backlit rate/tot, pulse, 4-20mA, 10 point linearization,
HART#
F19 = F018 backlit rate/tot, pulse, 4-20mA, 10 point linearization,
HART, Intrinsically safe# [IECEx & ATEX approved]
F31 = Intrinsically safe F130 2 stage batch controller# [IECEx &
ATEX approved]
9
-
*Temp code 5 required for integral instruments between 176F (80C) & 250F (120C)
#Temp code 8 required for integral instruments below 176F (80C)
1 2 3 4 5 6 7 8 9
--->>>> OM 006 A 51 2 -8 2 1 R5
© 2019 Great Plains Industries, Inc. All Rights Reserved.
SPECIFICATIONS
B
C
RT12 / RT14
GRN HOUSING
RT40
COVER
OM008: 5/8" (16 mm)
OM004 & OM006: 7/16" (12.5 mm)
MOUNTING
FOOTPRINT
1.97”
(50 mm)
2.68” (68 mm)
OM004 OM006 OM008
Nominal
Size:
Flow*
Range:
Accuracy
3cp:
Repeatability:
Temperature
Range:
Pressure Rating (Threaded Meter):
Aluminum 220 psi (15 bar)
316
Stainless
Steel
Intermediate
Pressure
Stainless
Steel
Recommended
Filtration:
+
@
1/8"
(4 mm)
0.26-9.5 GPH
(1.0-36 L/hr)
± 1.0% of reading (accuracy is ± 0.2% of reading with
optional RT14 with non-linearity correction)
Typically ± 0.03% of reading
-40° F to +300° F (-40° C to +150° C)
1/4"
(6 mm)
0.5-27 GPH
(2-100 L/hr)
495 psi (34 bar)
1450 psi (100 bar)
200 mesh (75 µm)
3/8"
(8 mm)
4-145 GPH
(15-550 L/hr)
OM004 OM006 OM008
Electrical:
Output
Pulse
Resolution:
Reed Switch 10600 (2800) 3975 (1050) 1345 (355)
Hall Effect 10600 (2800) 3975 (1050) 2690 (710)
QP Quadrature
Hall option
HR - High
Resolution
Hall Effect
Reed Switch
Output
Hall Effect
Output (NPN)
Optional
Outputs
*Maximum ow is to be reduced as viscosity increases, see ow de-rating
guide. Max recommended pressure drop is 14.5 psi (1 bar).
+
When used to meter rate, at very low ow rates, the rate can jump, due to
resolution (not accuracy).
Pulses / gallon (Pulses / L) - Nominal
10600 (2800) 3975 (1050) 2690 (710)
42400 (11200) 15900 (4200) n/a
30V (dc) x 200mA max. [maximum thermal shock 18 F
(10 C) / minute]
3 wire open collector, 5-24V (dc) max., 20mA max.
4-20mA, scaled pulse, quadrature pulse, ow alarms or
two stage batch control
DIMENSIONS
B C
OPTION OM004 OM006 OM008 —
RT12 / RT14 GRN
HOUSING
RT40
COVER
4.8"
(122 mm)
4.9"
(125 mm)
3.6"
(92 mm)
4.8"
(122 mm)
4.9"
(125 mm)
3.6"
(92 mm)
*All dimensions are ± .079” (±2mm)
5.0"
(129 mm)
5.2"
(132 mm)
3.9"
(99 mm)
APPLICATIONS
• Oils
• Fuel
• Diesel
• Truck Metering
• Chemical Additive Injection
• Batching
• Molasses
• Clean Fluids
• Bunker C Fuel Oil
• Oil-Based Paints
• Industrial Fluids
• Chemical Feed Lines
4.9"
(124 mm)
3.8"
(96 mm)
2.8"
(72 mm)
C
APPROVALS
IP66/67
03/19 IND-1043_OM_SMALL
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