Conbraco 27-401-01 Siphon Loop this kit simplifies that process

this kit simplifies that process by requiring no stem height setting during installation on compatible VB-7xxx valves

While standard tools like a screwdriver and pliers are required

increasing reliability over standard single-pole alternatives

If the vacuum is sufficient but the SPNO switch fails to show continuity across the terminals

OEM Precision: Guaranteed compatibility with Berko and QMark units

Conbraco 27-401-01 Siphon Loop this kit simplifies that processThe Conbraco 27 401 01 is a standard setting 180 degree steam gauge siphon loop designed to protect sensitive instrumentation from the destructive effects of live steam. Constructed from 1 4 inch heavy gauge seamless brass tubing, this pigtail siphon acts as a thermal barrier by trapping condensate within its loop. This "water seal" prevents high temperature saturated steam from directly entering the Bourdon tube of your boiler pressure gauge or