Chemical/Diaphragm Seal Unit

Thermal Instrument is the leading Chemical Diaphragm Seal Unit manufacturer in India providing reliable solutions for accurate pressure measurement to the process industry worldwide.

Model:

1. CSU

Chemical Diaphragm Seal Unit:

• A diaphragm seal is a device in which a flexible membrane (diaphragm) seals and isolates the measuring instrument from the process medium.
• The instrument side of the diaphragm is filled with appropriate fluid.
• The pressure exerted by the process fluid on the Diaphragm is hydraulically transmitted through the seal fluid to the pressure-sensing element.

TESTS

• Visual Inspection
• Dimensional Verification
• Accuracy Test
• Hysteresis Test
• Leak Test
• Influence Of Mounting Position
• Degree of Protection
• Effect of Mechanical Vibration
• Effect of Mechanical Shock
• Endurance Test With Steady Pressure
• Endurance Test With Over Pressure
• Endurance Test with Cyclic Pressure
• Safety Blow-out Test
• Thermal Stability Test at Rated Temperature

Features:

• The diaphragm seal protects the pressure sensor from the harmful and hazardous effects of the process fluid.
• Optional features are a Capillary for Remote mounting of the Pressure Instrument, a Flushing Ring (Spacer Ring) for purging/cleaning the area below the diaphragm without removing the Seal from the process line, a Stud / Nut and gasket for assembling the Diaphragm Seal with the Process Flange.