Small Displacement Volume Mini Diaphragm Seal WIKA Type L990.TA

Application

Process industry diaphragm seal to combine with Bourdon tube pressure gauges. Intended for corrosive, contaminated, hot or viscous pressure media.

Design

Upper and lower housing welded with integral diaphragm. It requires hydraulic fluid to transmit pressure to instrument

Process Connection

¼" or ½" NPT-female, other see options

Instrument Connection

¼" or ½" NPT-female

Suitable Pressure Ranges (MWP 2500PSI @100°F)

2 ½" gauge: 100 PSI to 2500 PSI

4 or 4 ½" gauge: 400 PSI to 2500 PSI

Volumetric Data

Displacement typically for 1.3″ SS diaphragm

∆V = 0.51 cm3 [0.0311 in3 ]

Total cavity volume max V0 = 0.7 cm3 [0.0427 in3 ]