The WIKA L990.34 Threaded Diaphragm Seals are suitable for corrosive, contaminated, hot or viscous pressure media. The upper and lower housing are welded with the Internal welded diaphragm,threaded process connection. It requires hydraulic fluid to transmit pressure to the instrument. Suitable pressure ranges from 100 to 9000 psi. Process connections are available from 1/4in to 1in NPT.
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