US 11,860,010 B2
Differential pressure metering apparatus for a flow restrictor pipe section
Adam Hughes, Cheltenham (GB); and Martin Folkesson, Cheltenham (GB)
Assigned to Spirax-Sarco Limited, Cheltenham (GB)
Appl. No. 17/292,214
Filed by Spirax-Sarco Limited, Cheltenham (GB)
PCT Filed Nov. 8, 2019, PCT No. PCT/EP2019/080725
§ 371(c)(1), (2) Date May 7, 2021,
PCT Pub. No. WO2020/094856, PCT Pub. Date May 14, 2020.
Claims priority of application No. 1818258 (GB), filed on Nov. 9, 2018.
Prior Publication US 2022/0003583 A1, Jan. 6, 2022
Int. Cl. G01F 1/36 (2006.01); G01F 15/00 (2006.01)
CPC G01F 1/36 (2013.01) [G01F 15/005 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A differential pressure metering apparatus comprising a manifold for fluidically coupling impulse lines for a differential pressure meter to measurement ports of a flow restrictor pipe section having a longitudinal pipe axis, the manifold comprising:
a rigid body comprising a base for mounting to the flow restrictor pipe section, and an arm extending from the base to an impulse attachment portion for coupling to two impulse lines;
a high pressure channel extending through the rigid body from a high pressure inlet port to a high pressure outlet T-junction in the impulse attachment portion, the high pressure outlet T-junction having opposing first and second high pressure outlet ports each defining an impulse line extension direction along which an impulse line extends when connected to the respective port;
a low pressure channel extending through the rigid body from a low pressure inlet port to a low pressure outlet T-junction in the impulse attachment portion, the low pressure outlet T-junction having opposing first and second low pressure outlet ports each defining an impulse line extension direction along which an impulse line extends when connected to the respective port;
whereby the manifold is configured to be mounted to the flow restrictor pipe section in a wet-line configuration:
when the longitudinal pipe axis of the flow restrictor pipe section extends horizontally; and
when the longitudinal pipe axis of the flow restrictor pipe section extends vertically;
wherein in the wet-line configuration, the first high pressure outlet port and the first low pressure outlet port define impulse line extension directions having a downward component, and the second high pressure outlet port and the second low pressure outlet port define impulse line extension directions having an upward component.