This application note to introduce the applications of steam/gas flow measurement by using Compact Orifice. The Complaflow with Flow Computer package allow customer to connect to IoT platform for easily remote management & reporting

1. www.daviteq.com
COMPACT ORIFICE FLOWMETER
Saturated/Superheated Steam, Gas, Liquid Flowmeter

2. Contents
1. Daviteq introduction
2. Business lines
3. CompaFlow
4. Customers

3. Daviteq Introduction
• Founded in 2004
• Established R&D department in 2009
• Business: Manufacturing & Supply Instruments & Controls
• Daviteq’ s typical products:
- EMS, RMS: Energy Management Solution and Remote
Management Solution
- Compaflow: Steam and Gas flow meter
- CAP10 series: Fuel level sensor
- CAP20 series: Liquid and solid level sensor
- MS128/LFC 128 series: Process display & controler
- iConnector: Smart IoT Gateway
- Globiots: IoT platform

4. Business Lines
Istrument & Valves Plastic Piping & Valves Fuel Sensors Remote Management Solutions
- Flow Meter
- Level
- Pressure
- Temperature
- Analyzer
- Systems
- Power Meter
- valves
- PVC - U
- PVC - C
- ABS
- PP - H
- PE, PVDF
- Sensors & Instruments
- Welding Machine
- Cements – Primers
- Valves
- PulseCAP10
fuel sensors
- PulseCAP20
level Switch
- PulseCAP20
level Transmitter
- Flowmeter
- BTS Remote
Management
- Energy Management
- Process Automation
- Boiler Control Systems
- Boiler Remote
Management
- Generator Remote

5. Compaflow
ü ISO – 5167 Standard
ü Low Cost
ü Easy Installation
ü High Accuracy
ü Ready to connect to internet
ü Not be affacted by vibration &
electromagnetic interference

6. Specification
Fluids Saturated/Superheated Steam
Gas
Liquid
Output 4 – 20mA, Pulse, Relays,
Modbus RS485
Accuracy max +/- 1 ÷ 2%
Pressure max 100 Bar (1450 psi)
Temperature Max 500 degC
Power supply 24VDC
Line size 1”(DN25),1¼”(DN32),1½”(DN40),
2”(DN50),2½”(DN65),3”( DN80), 4”( DN100), 5”( DN125),
6”( DN150),8”( DN200),
10”( DN250),12”( DN300),
14”( DN350)
Material Orifice assembly, stem and manifold: 304SS, 316/316L SS

7. Configuration
1. Package for Saturated Steam
2. Package for Gas/Superheated Steam
3. Package for Liquid

8. 1. Package for Saturated Steam
• (1) Orifice Plate
• (2)DP transmitter
• (3)Pressure transmitter
• (4)Flow Computer MS128
• (1) Orifice Plate
• (5)Multi-Variable Flow
transmitter

9. 2. Package for Gas/Superheated Steam
• (1)Orifice plate
• (2)DP transmitter
• (3)Pressure transmitter
• (4)Temperature transmitter
• (5)Flow Computer MS128
• (1)Orifice plate
• (6)Multi-Variable Flow
transmitter
• (7)Temperature
transmitter

10. 3. Package for Liquid
• (1) Orifice plate
• (2) DP transmitter
• (3) Flow totalizer MT128

11. Orifice
• ISO 5167 Standard
• Integrated 3 – valves manifold
• Material: SS304/316
• Size: 1”(DN25)…14”( DN350)
• Pressure limited: 100 Bar (1450 psi)
• Temperature limited: Max 500 degC
• Upstream/downstream : 20D÷44D/5D (1)
• Upstream/downstream : 2D/2D (2) for Conditioning type
ISO 5167 Compact Orifice Compact Orifice with FlowtubeConditioning Compact Orifice

12. DP Transmitter
• Model: APT3100
• Output signal: 4 ~ 20mA,
HART
• Accuracy : ±0.075%
• High reangeability
(100:1)
• Maker : Autrol (Korea)
• Model: EJX110A
• Output signal: 4 ~ 20mA,
HART
• Accuracy : ±0.065%
• High reangeability (200:1)
• Maker : Yokogawa(Japan)

13. Multi-Variable Flow transmitter
• Model: 3051SMV
• Accuracy : 0.04%
• Turndown: 200 : 1
• Output : 4 – 20mA,
HART
• Maker : Emerson (USA)
• Model: EJX910A
• Accuracy : +/- 0.025%
• Turndown: 200 : 1
• Max Working Pressure: 250 bar
• Output : 4 – 20mA, HART
• Maker: Yokogawa (Japan)

14. Pressure Transmitter
• Accuracy : 0.25% & 0.5%
• Output : 4…20mA
• Range : 0 - 16 bar
Range : 0 - 25 bar
Range : 0 - 40 bar

15. Temperature Transmitter
• Accuracy : 0.25% & 0.5%
• Output signal: 4..20 mA
• Temperature range :
-50 to +200°C
• Maker: Tecsis (Germany)
• Stability ±0.11%
• Temperature range: –50 - 400 °C
• Sheath material :316, 321 SST
• Maker: Emerson (Germany)

16. MS-128 Flow Computer
• Input: 4-20mA, 0…5Vdc,
Pulse,PT100
• Output: 4-20mA, Pulse, Relays,
ModbusRS485,
• Weather-Proof Front
• Internet connection Ready
• Large LCD display, IR Touch
buttons
• Maker: Daviteq (Viet Nam)

17. MT-128 Flow Totalizer
• Input: 4 channel 4-20mA,Pulse,
0…5Vdc
• Output: 4-20mA,Pulse,Relays,
Modbus RS485
• Weather-Proof Front
• Internet connection ready
• Large LCD display, IR Touch
buttons
• Maker: Daviteq (Viet Nam)

18. Ready connect to IoT platform – Globiots for Automatic Report

19. Daviteq Compact Orifice –
COMPAFLOW
Vortex from other
Manufacturers
Designed and manufactured
base on ISO5167 standard
No international standard
Not be affected by vibration &
electromagnetic interference
Easily affected by vibration &
electromagnetic interference
Turndown standard 14:1 up to
36:1 (using 2 DP transmitter)
Turndown 25:1
Low cost High cost
Warranty up to 24 month Warranty 12 month
Easy to change/replace
separate parts
Difficult to change parts
separately, need to stock whole
pack of system
Compaflow v.s Vortex

20. Daviteq Orifice –
COMPAFLOW
Vortex from other
Manufacturers
High accuracy : ±1 to ±2 % High accuracy : ±1 to ±2 %
Flow computer MS128 has
large LCD display to show
simultaneously parameters
Small LCD display
Output:4-20mA
RS485/Modbus,ready
connect to the IoT platform
Output 4 – 20mA/HART
and Pulse
High cost if connect to the
Internet
Straight pipe: 20D÷44D/5D
be able to 2D/2D by using
conditioning orifice
Straight pipe:10D÷20D/5D
Compaflow v.s Vortex

21. Customers

22. Typical Projects

23. Typical Projects

24. Typical Projects

25. Contact
Dai Viet Controls & Instrumentation Company Ltd.
No.11 Street 2G, Nam Hung Vuong Res, An Lac Ward,
Binh Tan Dist, HCM City, Viet Nam.
Tel: +84.28.6268.2523 / 6268.2524 | Fax:
+84.28.6268.2520
Email: info@daviteq.com | www.daviteq.com