DKR – Nozzle             

Application

For flow-rate measurement of gases, steams and fluids in either homogenous or heterogeneous media. Special applications are gas- and oil-extraction and flow-rate measurements that require a very low energy-loss.

Construction

DKR–nozzles consist of an inlet cylinder, a diffuser cone, a confuser and an outlet cylinder.

The DKR-nozzles are carried out and meant for the flow in one direction.

As a special construction you have the possibility of measuring the flow-through in both directions and we may construct several deviations, if needed.

The pressure tapping takes place at the junction from diffuser to confuser and at the outlet.

In most cases they are designed as single bore. We can, of course, take into account customer specifications for pressure tapping (multiple tapping or ring chamber).

Advantages

Much smaller remaining pressure-losses (which means smaller energy-loss) compared to conventional DP-Flow-elements (roughly 30% less than venturi tubes)

2–3 times a s much duration of life when being used in extreme conditions (such as fluid-measuring with solids contents)

Little noises and vibrations due to the low-optimised construction
 

Technical Details

Nominal pressure: up to PN 400 (2500 lbs)

Nominal diameter: DN 50 (2“) up to DN 1000 (40“)

Temperatures: depending on material up to 450°C

Installation lengths: depend on pipe diameter and the needed differential pressure

Connection: For flanging along with EN 1092-1 / ANSI; for welding;
customer-specific connections

Materials: Steels, heat-resistant steels, stainless steels, plastics such as:
C22.8 1.4571
15Mo3 PVC
13CrMo44

Pressure Taps: According to customer specifications or data sheet A6.

Quality assurance: Production and check according to the relevant guidelines such as TRD,
“AD-Merkblättern”, DGRL 97/23/EG (PED) and customer specification. Material certificates according to EN 10204 (DIN 50049 3.1B).

Patent protection:

DE 19648573, DE 19648583, DE 19648588, DE 19648591,
DE 19648599, DE 19648601