Principle

ใช้ในการวัดอัตราการไหลของไอน้ำ,ของเหลว,ก๊าซ ตามหลักการทำงาน differential pressure

Construction

Design Standards : ISO 5167-4 and ASME MFC-3M
Sizes : DN 100 – 800 according to ISO 5167
Beta (d/D) : 0,3 £ ߣ 0,75
Pressure rating : PN 10 – 640, 150 – 2500 lbs, ISO PN 20 —420
Material : Carbon steel, AISI 316, Duplex, 254 SMO others on request.
Mounting style : Weld ends according to DIN 2559 or ANSI B16.25. Flanges acc. to DIN or ANSI B16.5 standards or Grayloc Clamp connections.
Pressure taps : Weld ends Ø 21.3 mm, 26.9 mm, thread connection 3/8″, 1/2″ BSP, 1/2″ NPT, or flanged.
Tappings : Single pressure tappings or 2×4 tappings each arranged with an external annular ring to equalise the pressure.
Outlet cone : 7 — 15 °

Technical Data

Accuracy : 0,7 % (according to ISO 5167-4)
Pressure loss : Depending on outlet cone between 10 – 15 % of the differential pressure measured
Limits for Re. No. : 2 x 10 5 < ReD < 2 x 10 6 according to ASME
Accessories : Shut -off valves and condensing chambers for steam flow

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