Applications : Media:           Natural gas, town gas, propane, butane, air
industry:       Gas supply
Tasks:             Gas measurement at operating conditions '•
Brief information :
The residential diaphragm gas meters BK-Type meet the highest demands with re­spect to the accuracy of measurement and safely it incorporates both innovative features and gas measurement know-how of many decodes. The BK-Type meters a supplied in folded form as co-axial and two-pipe versions.
The stroke of the diaphragms is pneumatically stopped and therefore ensures both low bearing loads and a quiet operation.
The synthetic diaphragm is dimensionally stable and stadium shaped.
High-grade materials and components as well as the patented curve K-System en­sure a high-quality standard.
The K-System perfectly coordinates the movement of the valves with the actual gas flow to the measuring chambers. This ensures excellent linearity even with utilizing small valves.

Due to the optimized slides, Omm of BK-Type is stable and the gas meter is not susceptible to contamination IRPF 0.9 to BS4161) The measuring unit is adjusted by a patented needle-and-scale system.
although the design of the BK-Series ts very robust, the gas meters are still measuring instruments and as such should be handled with care.
Operating principle: Four measuring chambers are separated by synthetic dia­phragms. The chambers are filled and emptied periodically, and the movement of the diaphragms Is transferred via a gear to the crankshaft. This shaft moves the valves, which control the gas flow. The rotations of the gear are transferred via a magnetic or mechanical coupling to the inde
   

Type	Meter case	Dimensions					weight	Connections size	Thread
		A	B	C	D	E	Kg	DN*
Two-pipe	steel	110	214	67	194	157	1.9	25	1  ¼ ”
Two-pipe	steel	130	214	67	204	157	1.9	20	1”
Two-pipe	steel	152.4	214	67	194	157	2.0	-	G  B”””
Two-pipe	steel	160	214	67	235	157	2.0	-	G  B”””
Two-pipe	Aluminum	110	220	71.5	197	163	1.9	25	1  ¼ ”
Co-axtal	steel	-	215	67	194	157	1.9	25	2 ”