Precision Orifice Plate

Precision Flow Measurement

Engineered for Accuracy. Built for Durability. Compliant with ISO 5167 & ASME MFC-3M.

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About DAEHAN INST CO.,LTD.

DAEHAN INST specializes in the in-house design and manufacturing of advanced differential pressure flow meters. Our commitment to excellence is guided by a CEO with over 40 years of extensive industry experience, ensuring that we deliver highly accurate, reliable, and innovative solutions to our global clientele.

ISO 5167 Compliant

Adhering to global standards for orifice flow meters to ensure consistent accuracy.

High Accuracy

Precision engineering delivering measurement accuracy within ±0.5% to ±1.5%.

Custom Solutions

Tailored designs for diverse fluids including liquids, gases, and steam.

Product Showcase

Concentric Orifice Plate

Orifice Plates

Available in Concentric, Eccentric, Segmental, and Quadrant Edge designs. Ideal for a wide range of flow measurement applications.

  • Types: Concentric, Eccentric, Segmental
  • Material: SS316, Hastelloy, Monel
  • Application: Liquid, Gas, Steam
Orifice Flange Assembly

Orifice Flanges

High-quality forged steel flanges designed for accurate differential pressure measurement. Available in various pressure ratings.

  • Material: Forged Steel (ASTM A-105)
  • Tapping: Flange Tap, Corner Tap
  • Size: 15mm - 1000mm
Flow Nozzle

Flow Nozzle

Designed for high-velocity, non-viscous, erosive flow measurement. Excellent durability and long-term stability.

  • Types: ISA 1932, Long Radius
  • Application: High Pressure Steam, Feed Water
  • Standard: ASME MFC-3M
Venturi Tube

Venturi Tube

Low pressure loss flow meter suitable for clean liquids and gases, as well as slurry and sludge applications.

  • Feature: Low Pressure Loss
  • Application: Water, Sewage, Slurry
  • Material: Carbon Steel, SUS304/316
V-Cone Meter

V-Cone Meter

Also known as Annular Venturi Meter. Generates differential pressure via a central cone, offering high accuracy with minimal straight run requirements.

  • Feature: Short Straight Run (Upstream 5D, Downstream 3D)
  • Advantage: Low Pressure Loss, High Accuracy & Repeatability
  • Application: Wide Flow Range
Average Pitot Tube

Average Pitot Tube

Insertion-type flow meter ideal for large pipe diameters. Simple installation and low permanent pressure loss.

  • Type: Insertion
  • Advantage: Low Cost for Large Pipes
  • Application: Air, Gas, Water

Condensate Pot & Seal Pot

Essential protection devices for DP Flowmeters and Transmitters. Condensate Pots handle steam applications while Seal Pots protect against corrosive fluids.

  • Model: DHCP
  • Application: Steam Line / Corrosive Fluids
  • Material: Carbon Steel, Stainless Steel, Alloy Steel

Downloads

Click below to download our comprehensive product guide.

Download Product Guide (PDF)

Technical Specifications

Specification Details
Pipe Diameter 15mm - 3000mm(1/2" - 120")
Pressure Rating JIS 10K - 63K, ANSI 150# - 2500#
Standard Materials SUS304, SUS316, SUS316L, Carbon Steel
Special Materials Monel, Hastelloy, Inconel, Titanium, Teflon
Accuracy ±0.5% ~ ±1.5%
Standards ISO 5167-1,2,3,4,5,6 ASME MFC-3M, 13M, JIS Z 8762
Tapping Methods Flange Tap, Corner Tap, D-D/2 Tap, Pipe Tap

Get in Touch

Contact us for custom quotes and technical consultation.

Company: DAEHAN INST CO.,LTD.
Email: dhinst2000@naver.com
Phone: 070-8065-0273
Fax: 0508-940-6775
Address: #18-21, 36Beon-gil, Muha-ro, Hwaseong-si, Gyeonggi-do, Korea
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Research & Development

Overcoming the limitations of traditional differential pressure flow meters through state-of-the-art facilities and expert research. We are redefining precision and durability.

Welcome to DAEHAN INST CO.,LTD.