Applications of the pressure gauge siphon
- Siphons for steam services
- Pigtail for vertical installations
- Coil for horizontal installations
Standard Features of the pressure gauge siphon
Pressure Connection
See table on datasheet
Materials
Brass
Steel A120, schedule 40
Steel A106B, schedule 80 & 160
316 stainless steel, schedules 80 & 160
Chrome Moly steel (A335 P22), XX Heavy
Optional Extras
Alternate threads
316 stainless steel cleaned for oxygen service
Media Temperature Reduction
Approximately 75°F for each 12" section of ½" pipe.
Actual reduction dependent on process/application variables.
Description of the pressure gauge siphon
Pressure gauge siphons are used to protect the pressure gauge from the effect of hot pressure media such as steam and also to reduce the effect of rapid pressure surges. The pressure medium forms a condensate and is collected inside the coil or pigtail portion of the pressure gauge siphon. The condensate prevents the hot media from coming in direct contact
with the pressure instrument. When the syphon is first installed, it should be filled with water or any other suitable separating liquid.
Forms
Pigtail siphon
Coil syphon