Starting at $114.41
  • Not in stock. Usually ships in 3-4 weeks


  • Provides direct threaded connection
  • 1/4in or 1/2in NPT female
  • Process connections:
    • 1/4in to 1in NPT-female
    • 1/4in to 3/4in NPT male
  • Suitable pressure ranges 15 to 2500 psi
  • Large selection of materials

The WIKA L990.TC Clamped Diaphragm Seal has an internally clamped diaphragm with threaded process connection. It requires hydraulic fluid to transmit pressure to instrument process. Process connections are available from 1/4in to 1in NPT-female or 1/4in to 3/4in NPT male. Suitable pressure ranges include 15 psi up to 2500 psi. The L990.TC is designed for aggressive, hot, corrosive, environmentally hazardous or toxic media.