公开(公告)号：US09714717B2

公开(公告)日：2017-07-25

申请号：US14452990

申请日：2014-08-06

Applicant: Fluid Handling LLC.

Inventor： Nimesh Pratapbhai Karia ,  Girish Subhash Mukkawar ,  Navalkishor Birdhilal Agrawal ,  Brijeshkumar Kantilal Meghpara

IPC: H01H3/16 ,  H01H3/18 ,  H01H15/14 ,  H01H17/12 ,  H01H19/18 ,  H01H21/28 ,  F16K25/00 ,  G01F23/56 ,  H01H35/40 ,  E03B7/00

CPC classification number: F16K25/005 ,  E03B7/00 ,  G01F23/56 ,  H01H35/40 ,  H01H2239/036

Abstract: A flow switch assembly features a two-part base assembly having lower and upper base parts. The lower base part is made from a metallic material, adapted on piping having a fluid flow, and configured with a central orifice to receive a paddle arm that pivots on an axis and responds to fluid flow in the piping. The upper base part is made from a non-metallic material, configured with a corresponding central orifice to receive the paddle arm, and configured with a channel to receive a pivot arm to mount and allow the paddle arm to pivot on the axis to actuate an ON/OFF switch in response to fluid flow. The non-metallic material has a lower coefficient of heat transfer than the metallic material to reduce condensation build-up in the flow switch assembly when the flow switch assembly is used in cold applications and exposed to temperatures below freezing.