®
Technical Specifications
Eggs Delta Pulse
®
INSTRUMENTS, LLC.
Product Data Sheet
PDS-FLP
2026-07-31
Eggs Delta Pulse
Vortex Flowmeter
Description
Eggs Delta-Pulse is a light weight, small,
low cost flow monitoring vortex meter
made out of PPS resin. Its simple design
and material makes it suitable for a wide
variety of flow applications. It has no
moving parts and the injection molded
design provides a smooth surface for
cleanliness and better chemical
compatibility.
Principle of Operation
Sparling Vortex Meters measure flow rate
based on Karman's vortex shedding
principle. The stationary trapezoidal object
(bluff body) placed into the path of the
flow stream sheds vortices downstream at
a frequency proportional to the velocity of
flowing media. A piezoelectric sensor
detects the vortices and creates electrical
impulse signals which is proportional to the
fluid flow rate.
Applications
(PPS) polyphenylene sulphide material is
compatible with nearly all gases & liquids.
Common Applications Include:
•
Deionized Water(RO/DI skids)
•
Ultra pure water distribution in
medicare, biotech, semiconductor
and pharmaceutical market
segment
•
Cooling Water
•
Chemical Feed
•
Alcohol
•
Air consumption control in
compressed air distribution
systems
•
Gas flow (nitrogen, oxygen, argon,
etc) measurements and monitoring
•
Sanitary Cleaning
®
INSTRUMENTS, LLC.
Features
•
Sizes include: 0.125", 0.25", 0.5" and 1"
•
Injection molded plastic construction
•
Single molded one-piece meter and bluff body
construction with no moving parts.
•
NEMA 4X Enclosure
•
NPT threaded connection for simple installation
•
Open collector unsealed pulse output with 12-24VDC
loop power.
How to order an Eggs Delta Pulse
Table 1: BaseModelNumber
Eggs Delta Pulse
-
Eggs Delta Pulse
Table 2: Size
04
-
0.125"
08
-
0.25"
15
-
0.5"
25
-
1"
Table 3: ApplicableFluids
G
-
Gas
L
-
Liquid
Table 4: FrequencyDivision
1
-
1/1: Liquid (Always "1")
2
-
1/10: Gas (Always "2")
Table 5: MatForConnectAdapters
P
-
NPT Threaded Adapters (PPS)
V
-
NPT Threaded Adapters (PVC)
Table 6: Version
A
-
Always "A"
Model
Size
Fluids
Freq.
Material
Version
Eggs
Delta
Pulse
04
G
1
P
A
Standard Specifications
Accuracy:
0.5" - 1": ±1% of flow (Liquid Only)
±3% Full Scale
Repeatability:
±0.5% of full scale
Outputs:
Three wire system requiring external power
supply.
Pulse Width 30 ms.
Max. Current 20mA.
Max. Voltage Impressed 30V.
Cable:
3 cores shield cable (36" std.)
Transmission
Length:
3280 ft
Enclosures:
NEMA 4X
Process Temp:
-4°F to 176°F
Max. Working
Pressure:
150 psi
Flow Ranges:
See Table
Pressure Loss:
Water:
•
0.05-4.56 psi (0.125")
•
0.018-5.04 psi (0.25" - 1")
Air:
•
0.02-0.103 psi (0.125")
•
0.009-0.22 psi (0.25" - 1")
Construction
Material:
PPS (Polyphenylene Sulphide)
Ambient Temp:
-4°F to 140°F
Power Supply:
12-24VDC
Process
Connections:
NPT Threaded Adapters
R 3/8 - 19
.........
0.125" NPT Female
R 1/2 - 14
.........
0.25" NPT Female
R 3/4 - 14
.........
0.5" NPT Female
R1 1/4 - 11
.......
1" NPT Female
®
INSTRUMENTS, LLC.
Flow Ranges
Size (in)
Factored
Pulse Units
(ml/pulse)
Max. Frequency
Liquid Flow (GPM)
Gas Flow (scfm)
Liquid
Gas
Min
Max
Min
Max
0.125
0.0899
749
3180
0.105
1.10
0.254
0.590
0.250
0.441
567
3400
0.310
4.00
0.650
3.20
0.500
2.36
306
2000
0.750
11.4
1.90
8.99
1.00
12.7
175
1120
2.20
35.1
5.99
30.2
Above table is based on air measurements at 68°F and atmospheric pressure (14.7 psi)
Above table is based on water measurements at 70°F
Flow range may vary under different process conditions such as density and viscosity of the process fluid.
Size (in)
Meter
I.D. (in)
L (in)
W (in)
H1 (in)
H2 (in)
*L (in)
H (in)
0.125
0.157
3.15
1.26
1.14
2.70
5.12
0.570
0.250
0.315
3.15
1.26
1.14
2.70
5.12
0.570
0.500
0.591
3.35
1.26
1.14
2.70
5.12
0.570
1.00
0.984
4.72
1.81
1.81
3.30
7.48
0.906
*L = with adapters
