General Introduction
TLY Enerji is a technology company that manages the engineering, design, manufacturing, installation, and commissioning processes of flow measurement systems used in industrial facilities from end to end.
Flow elements are primary measurement devices based on the differential pressure principle and are the fundamental components that determine the accuracy of flow measurement, system reliability, and long-term stability in process lines.
Product Range
1. Orifice Plate
Orifice plates are the most widely used primary elements for flow measurement based on the differential pressure method.
TLY Enerji provides engineering, calculation, manufacturing, and installation services in accordance with ISO 5167-2, API 14.3 / AGA-3, and ASME MFC-3M standards.
Types: Concentric, Eccentric, Segmental, Quadrant Edge
Materials: AISI 316(L), Monel, Inconel, Hastelloy
Applications: Steam, natural gas, water, process fluids
Options: Designs compatible with Single Chamber or Dual Chamber Orifice Fittings
2. Multi-hole Orifice Plate
Multi-hole orifice plates provide more stable, linear, and vibration-free differential pressure generation in low Reynolds number flows.
TLY Enerji delivers low-noise, highly repeatable measurements through optimized hole geometry.
Advantages: Flow profile balancing, low noise, reduced pressure loss
Standards: Custom design based on ISO 5167 and ASME MFC-3M
3. Meter Run
Meter Run systems are integrated flow measurement stations manufactured as a single unit with an orifice plate for small-diameter pipelines (DN ≤ 50 mm).
TLY Enerji manufactures high-accuracy Meter Runs that minimize straight pipe length requirements.
Standards: ISO 5167-2, ASME MFC-3M
Manufacturing: CNC machining, surface roughness control, EN 10204 3.1 certified materials
Applications: Natural gas, process gases, testing and laboratory systems
4. Venturi / Flow Nozzle
Venturi tubes and flow nozzles provide low permanent pressure loss and high accuracy in high-velocity and high-pressure applications.
Standards: ISO 5167-3 / 4, ASME MFC-3M, ISA 1932
Types: Long Radius Nozzle, ISA 1932 Nozzle, Classical Venturi Tube, Venturi Nozzle
Applications: Steam, gas, and liquid lines
Advantages: ±0.5% measurement accuracy, long service life
5. Wedge Element
Wedge flow elements provide reliable measurement in high-viscosity, particulate, or contaminated fluids.
TLY Enerji manufactures wedge flow elements using highly wear-resistant materials.
Standards: ASME MFC-14M, design based on ISO 5167
Advantages: Low blockage risk, low maintenance requirements, wide Reynolds number range
Applications: Crude oil, slurry flows, wastewater systems
6. Pitot Tube
Pitot tubes determine the average flow velocity by measuring the velocity pressure of the fluid.
TLY Enerji provides design, installation, and calibration services for both single-point and averaging Pitot tubes.
Standards: ISO 3966, ASME PTC 19.5
Applications: Air, flue gas, large-diameter pipelines
Advantages: Low pressure loss, easy installation, cost-effective solution
7. Venturi Tube
Venturi tubes are designed in accordance with ISO 5167-4 and ASME MFC-3M standards.
They are suitable for high-accuracy measurements where permanent pressure loss must be minimized.
Types: Classical, Short Form, Machined Venturi
Materials: Stainless steel, carbon steel, special alloys
Applications: Water, steam, gas, and chemical processes
8. Restriction Orifice
Restriction orifice elements are used to limit flow rate or create pressure reduction.
TLY Enerji manufactures both single-stage and multi-stage models according to process pressure and fluid characteristics.
Standards: Designed in accordance with ASME B31.3 and ISO 5167 principles
Applications: Pressure reduction, flow balancing, safety line control
9. Dual Chamber Orifice Fitting
Dual Chamber Orifice Fitting systems allow the orifice plate to be safely replaced while the process line remains under pressure.
This design eliminates process shutdowns and significantly reduces maintenance time.
Standards: API 14.3 / AGA-3, ISO 5167
Pressure classes: ANSI 150–2500
Measurement size range: DN50–DN600
Body materials: Carbon steel, stainless steel
Applications: Refineries, natural gas stations, petrochemical plants, power plants
Advantages:
Orifice plate replacement without shutting down the process line
Fast maintenance and low operating costs
Long-life sealing system
Fully compliant with international standards
Engineering and Service Scope
Design and Calculation
Differential pressure calculations, beta ratio selection, Reynolds number analysis, and straight pipe length optimization in accordance with ISO 5167, API 14.3, AGA-3, and ASME MFC-3M standards.
Manufacturing
CNC-controlled manufacturing, surface tolerance inspection, hydrostatic testing, NDT (PT, RT, UT) applications, and the use of EN 10204 3.1 / 3.2 certified materials.
Installation and Integration
Pressure tap connections, impulse lines, manifold installation, transmitter integration (HART, Modbus, Profibus), and full compatibility with automation systems.
Commissioning and Calibration
Field testing, transmitter calibration, zero and span adjustment, and verification services by an ISO 17025 accredited laboratory.
Project Management and Documentation
Comprehensive technical documentation including General Arrangement (GA), P&ID and isometric drawings, material lists, FAT/SAT reports, and quality dossiers.
Compliance with Standards
TLY Enerji designs and manufactures all flow elements in accordance with the following standards:
ISO 5167 (Parts 1–5): Differential Pressure Flow Measurement
API 14.3 / AGA-3: Orifice Metering of Natural Gas
ASME MFC-3M: Measurement of Fluid Flow Using Orifice, Nozzle, and Venturi
ASME PTC 19.5 / ISO 3966: Pitot Tube Measurement
ASME MFC-14M: Wedge Flow Element Design
ANSI / ASTM / EN Standards: Material and manufacturing criteria
TLY Enerji Capabilities
Turnkey engineering solutions for flow measurement systems
In-house design, manufacturing, and integration capabilities
Safe systems with ATEX, SIL2, and IECEx certified components
PLC, DCS, and SCADA integration
Complete technical support for EPC projects from field installation to commissioning
Experienced engineering team and international project management expertise
