You are here: Home » Products » FLOW » Venturis, Cones & Wedge Meters » Venturi Tube » Machined Venturi

EMCO Classical venturi tube machined, Type KVR

Principle: Based on the ISO 5167-4 standard, the venturi tube offers durable flow measurement with minimal pressure loss.

Images & drawings

Construction
Design and calculation standards
ISO 5167-4, ASME MFC-3M
Sizes
DN 50 - DN 250, 2” - 10"
Pressure rating
PN 10 - 640, 150 - 2500 lbs, ISO PN 20 - 420
β (d/D)
preferred range 0,4 < β < 0,75
Material
Carbon steel, AISI 316, Duplex, 254 SMO, other on request
Mounting style
Weld ends according to DN 2559 or ANSI B16.25. Flanges acc. to DIN or ANSI B16.5 standards (Greyloc Clamp connection available on request)
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 2x4 tappings each arranged with an external annular ring to equalize the pressure
Outlet cone
7-15°
Technical Data
Accuracy
1 % (acc. to ISO 5167)
Pressure loss
Depending on outlet cone, between 10-15% of the differential pressure measured
Limits for Reynolds No
2*10^5 < ReD < 2*10^6 according to ASME
Accessories
shut-off valves
Condensing chamber unit for steam flow