Overview
The DK32/34 is a variable area (VA) flowmeter for measuring low flow rates of liquids and gases. The tried and tested meter is particularly suitable for flow monitoring and dosing in gas analyser systems or on purge panels. Due to its robust all-metal design it can also be used in difficult process conditions with temperatures up to +200°C / +392°F or pressures up to 400 barg / 5800 psig. It is available with a metering valve as standard to accurately set the flow value.
Product features and options depend on device configuration: Contact us to make sure that your preferred functionality can be combined in one device.
- * Simple, low-cost installation: Able to measure and display without auxiliary power supply
- * Purgemeter with 2 optional limit switches for flow monitoring
- * Various stainless steel and alloy sensor materials
- * Optional surface passivation with SilcoNert®2000 for trace-level analysis
- * Ingress protection IP65/66
- * Full scale value for liquids: 1.6…150 l/h / 0.4…40 GPH
- * Full scale value for gases: 16…4,800 l/h / 0.6…170 SCFH
- * Turndown ratio 10:1
- * Maximum measuring error: ±4% (acc. to VDI/VDE 3513-2) or ±3% of full scale
- * Suitable for use in Safety Instrumented Systems with SIL 2, in redundant design (1oo2) also in SIL 3 applications (type A device)
- * Approved for hazardous areas
Specifications
Depending on selected device configuration
General information
Product type Flowmeter Product family name DK Product positioning For low liquid and gas flows Measurement principle Variable area float Measured media Liquids, Gases Operating conditions
Process pressure max. 220 barg/
3190 psigProcess temperature -40…+200°C/
-40…+392°FMaterials
Measuring tube Austenitic stainless steel (1.4404/316L), Austenitic alloy (2.4610/Alloy C4), Nickel alloy (2.4360/Alloy 400), Titanium alloy (3.7035/Ti-Grade 2), Nickel-chrome-molybdenum-tungsten alloy (2.4819/Alloy C276), Nickel-chromium-molybdenum-niobium alloy (2.4856/Alloy 625), Passivation with SilcoNert®2000 Gaskets Polytetrafluoroethylene (PTFE), Perfluoroelastomer rubber (FFKM), Fluoroelastomer rubber (FPM), DK34: none Process connection Austenitic stainless steel (1.4404/316L), Nickel alloy (2.4360/Alloy 400), Austenitic alloy (2.4610/Alloy C4), Nickel-chrome-molybdenum-tungsten alloy (2.4819/Alloy C276), Nickel-chromium-molybdenum-niobium alloy (2.4856/Alloy 625), Titanium alloy (3.7035/Ti-Grade 2), Passivation with SilcoNert®2000 Process connections
Flange connections EN (1092-1): DN15…25
ASME (B 16.5): ½…1"Thread connections Female:
G¼
¼ NPT, ½ NPTOthers:
Tube fittingsOther connections Swagelok;Serto, Ermeto; Hose; Gyrolok Approvals/Standards
Certificates/Approvals Nuclear Nuclear qualification on request (e.g. acc. to ASME III, RCC-M/E, etc.) Certificates/Approvals Ex ATEX, cQPSus, IECEx, NEPSI, EAC Ex, INMETRO, KCs, UKEX Certificates/Approvals Others CRN, NACE Certificates/Approvals Safety SIL 2 Communication
Analogue outputs 4…20 mA Discrete outputs Limit switches Digital outputs HART®
KROHNE DK32/34 Variable area flowmeter
Variable area flowmeter for low liquid and gas flows
* Compact mechanical indicator, optional 4…20 mA/HART®7, MIN/MAX switches and needle valve
* Sturdy metal design: stainless steel or alloy
* Thread: G¼, ¼ NPT, etc.
* -40…+200°C / +392°F, max. 220 barg / 3190 psig
* Compact mechanical indicator, optional 4…20 mA/HART®7, MIN/MAX switches and needle valve
* Sturdy metal design: stainless steel or alloy
* Thread: G¼, ¼ NPT, etc.
* -40…+200°C / +392°F, max. 220 barg / 3190 psig
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