Technical Resources & Certificates
Certifications and technical documents proving Daehan Instrument's technology and quality
🏆 Quality Certificates
ISO 9001:2015
Quality Management System
Certifying Body: Korea Foundation for Quality (KFQ)
Certificate No: QMS-2024-001
Valid Period: Jan 2024 - Jan 2027
Scope: Design, manufacture and sales of differential pressure flow meters
ISO 14001:2015
Environmental Management System
Certifying Body: Korea Foundation for Quality (KFQ)
Certificate No: EMS-2024-002
Valid Period: Jan 2024 - Jan 2027
Scope: Eco-friendly manufacturing process and environmental management
CE Marking
European Conformity
Certifying Body: TÜV Rheinland
Certificate No: CE-2024-003
Directive: PED 2014/68/EU
Product Range: Pressure Equipment Directive compliant products
KS Certification
Korean Industrial Standards
Certifying Body: Korean Standards Association
Certificate No: KS-2024-004
Standard: KS B 5301
Product Range: Differential pressure flow meters
📐 Manufacturing Standards & Specifications
ISO 5167 Series
International Standard for Differential Pressure Flow Measurement
- ISO 5167-1: General principles and requirements
- ISO 5167-2: Orifice plates
- ISO 5167-3: Nozzles and Venturi nozzles
- ISO 5167-4: Venturi tubes
- ISO 5167-5: Cone meters
- ISO 5167-6: Wedge meters
ASME Standards
American Society of Mechanical Engineers
- ASME MFC-3M: Orifice, Nozzle, and Venturi Measurement
- ASME MFC-14M: Natural Gas Flow Measurement
- ASME B16.36: Orifice Flanges
- ASME B31.3: Process Piping
API Standards
American Petroleum Institute
- API MPMS 14.3: Natural Gas Flow Measurement
- API 2530 (AGA-3): Orifice Metering
- API RP 551: Process Measurement Instrumentation
- API 21.1: Electronic Gas Measurement
Other International Standards
Industry-Specific Standards
- AGA Report No.3: Orifice Metering
- AGA Report No.7: Turbine Meter Measurement
- AGA Report No.9: Ultrasonic Flow Measurement
- IEC 61508: Functional Safety
⚙️ Technical Specifications
| Product | Accuracy | Repeatability | Pressure Range | Temperature Range | Pipe Size |
|---|---|---|---|---|---|
| Orifice Plate | ±0.5% | ±0.1% | Up to 420 bar | -200°C to +800°C | 15mm to 2000mm |
| Venturi Tube | ±0.75% | ±0.1% | Up to 160 bar | -50°C to +500°C | 50mm to 1200mm |
| Flow Nozzle | ±1.0% | ±0.2% | Up to 320 bar | -100°C to +650°C | 25mm to 1600mm |
| V-Cone Meter | ±0.5% | ±0.1% | Up to 200 bar | -50°C to +450°C | 15mm to 1000mm |
| Wedge Meter | ±0.5% | ±0.2% | Up to 250 bar | -30°C to +400°C | 25mm to 600mm |
📚 Technical Document Downloads
Product Catalogs
Technical Manuals
Calculation Software
🛠️ Technical Support
Please contact us anytime for technical inquiries or additional materials.
technical@daehan.in
📞 Phone
Technical Support Direct Line
💬 Remote Support
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