KROHNE – COMPACT ORIFICE PLATE FLOWMETER

The compact orifice plate with OPTIBAR DP transmitter is an economic DP flowmeter for a broad range of applications – from demi-water to chemicals to steam. The integral orifice plate is a one-piece design per ISO 5167-2 or ASME MFC-3M, consisting of a compact orifice plate, a sandwich meter body, impulse lines and a connection flange. KROHNE offers the complete DP flow solution with integral orifice plate, manifold and DP transmitter. It comes pre-assembled, preconfigured and pressure tested – ready for immediate commissioning. There is absolutely no need for routing of impulse lines, valves and supports. In this way, material costs and installation efforts are significantly reduced.

Features & Options

• Reduced installation costs: no installation of further components such as valves, DP transmitter, impulse lines, supports
• No external impulse lines: reduced risk of leakage
• Standardised flow element according to ISO 5167-2
• Low TCO due to reduced engineering, commissioning and installation costs
• Reduced need for recalibration in the field through advanced 3-D linearised OPTIBAR DP transmitters
• Complete flowmeter solution with compact orifice plate, manifold, DP transmitter, sizing and documentation from a single source
• Standard material: 316/316L, other materials on request
• Redundant versions, pressure and temperature compensated versions available
• Redundancy available (1oo2, 2oo3)
• HART^®7, Foundation fieldbus and Profibus-PA communication options
• SIL 2/3 certified versions
• Ex ia, Ex d, Ex t approvals

General information

Product type	Flowmeter
Product family name	OPTIBAR
Product positioning	For liquids, gases and steam
Measurement principle	Differential pressure
Measured media	Liquids, Gases, Steam
Probe diameter	–
Nominal diameter / size	DN50…DN600 / 2…24″ (others on request)

Operating conditions

Process pressure	max. 160 bar / 2320 psi
Process temperature	-130…+400°C/ -202…+752°F

Materials

Measuring tube

Austenitic stainless steel (1.4404/316L)

Process connections

lange connections	EN (1092-1): DN50…600 (others on request) ASME (B 16.5): 2…24″ (others on request)
Other connections	Buttweld ends

Approvals/Standards

Certificates/Approvals Ex	ATEX, IECEx, NEPSI
Certificates/Approvals Others	Oxygen
Certificates/Approvals Safety	SIL 2/3
NAMUR compliance	NE 107, NE 21, NE 43, NE 53
Design standards	ASME MFC-3M, ISO 5167-2

Communication

Analogue outputs	4…20 mA
Digital outputs	FOUNDATION™ Fieldbus, HART®, Profibus-PA, Bluetooth®

Accuracy

Discharge coefficient uncertainty

≤0.5%