Principal Products


BLB 300 Orifice Plate


For differential-pressure flow-rate measurement in aggressive and non-aggressive gaseous and liquid media. 



Carrier-ring with single bore according to DIN 19205 and fixed orifice plate. It can be delivered as an orifice according to ISO 5167-2, as cylindrical orifice, as quarter circle nozzle or as a segmental orifice or double coned orifice according to appropriate conditions of use. 


The orifice plate may either be welded or screwed into the carrier- ring or may be manufactured as single piece. When using mild steel the bore is reinforced with stainless steel (1.4571). When using special materials the orifice pl ate is screwed into carrier-ring. 



A compact and economical construction for use with small installation lengths. The orifice plate is easy to clean and thus suitable for media that become resinous, accumulate. Also they suit the needs for not constantly operating plants. 



Quality assurance 

Production and check go along with the relevant guidelines such as TRD, "AD-Merkblatt" and customer-specifications. Material certificates according to EN 10204 3.1 A and B. 



The table below shows the customary materials for carrier-rings and orifices. The choice is according to medium, pressure and temperature. The given temperature-scopes are guiding data. Especially for aggressive media you have to consider the individual application. This table is only valid if they are weld ed or screwed into the carrier-rings. 




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