Chemical seal

Chemical Seal

Installation
Connection:              ½” BSP
Special request:        ½” NPT
Filling conection:       ¼” NPT
Maximum working pressure 6000 Psi
Operation
The PCE Chemical seal is an isolation device used to separate pressure instruments from the process media, while allowing the instruments to sense the process pressure. A piston with a fill fluid, transmits pressure from the process medium to the pressure element assembly of the instrument. The chemical seal  may be attached directly to the instrument, or remotely, using a capillary line. These devices are intended to keep the process medium out of the pressure element assembly and to prevent damage from corrosion or clogging. Chemical seals are also used to maintain the sanitary requirements of the process medium and to reduce the process temperature to which the pressure element is exposed. Chemical seal function using a piston that is floating between the upper and lower connection. The upper housing is filled with a fluid and attached to the pressure instrument. The lower housing is in contact with the process medium and has the connection to the process system. The process media pressure is transmitted through the piston to the fill fluid in the upper housing and subsequently to the pressure instrument. The chemical seal has on both ends a fire seat if a hose or a connection breaks the chemical seal will close the on the metal seat.
A fill/bleed connection is standard, which permits filling the seal and instrument.
Features
All Buna-N O-rings
All 316 SS Construction
O-rings do not cross directly over ports during operation, therefore maintaining O-ring longevity.