Diaphragm Seals | Diaphragm Pressure Seals

Diaphragm seals create a flexible barrier to protect pressure measurement instruments from extreme operating temperatures and corrosive, abrasive, and toxic process media. These seals are made from metal or plastic and are available with either a threaded, flanged, or in-line connection.

Uses for diaphragm seals include pressure transducers and transmitters, and pressure switches and gauges. Applications and industries vary widely but typically include wastewater treatment facilities, offshore oil applications, pharmaceutical, food and beverage, and biotech.

Types of diaphragm pressure seals include:

  • Threaded diaphragm seals connect directly to the process instrumentation with an NPT connection.
  • Flanged connection diaphragm seals attach to the process instrumentation with either a raised, flat, or ring joint flange.  
  • In-line seals  are designed for use in full port flow-thru applications that would clog standard diaphragm seals.   

Diaphragm Seals for Pressure Instrumentation

Branom Instrument Co. provides diaphragm seals from several manufacturers, including WIKANOSHOK, Red Valve, and Winters. Our inventory includes replaceable and non-replaceable diaphragm seals in the following seal types:

  • Threaded Connection Diaphragm Seals
  • Flange Connection Diaphragm Seals
  • Sanitary Diaphragm Seals 
  • In-Line Diaphragm Seals

If you are unsure of which diaphragm seal is best for your application, our team will help you select and source the best option.

Contact us to Discuss Diaphragm Seals

Branom has decades of instrumentation experience and delivers high-quality products produced by the industry’s leading manufacturers. We carry an extensive inventory of diaphragm seals and other instrumentation and will help you source the right products for your testing needs. Contact us to discuss your application requirements.

Wika Instrument Lp
WIKA 232.25 6 3000PSI 1/2 B

4236424

738.45 738.45 USD
On Hand: 0
474.58 474.58 USD
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248.00 248.0 USD
On Hand: 2
554.93 554.9300000000001 USD
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731.68 731.6800000000001 USD
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Wika Instrument Lp
L990.10-N4FxN4F.SS.SS-2.CS.SS.VI.1500

50372211

741.31 741.3100000000001 USD
On Hand: 2
777.93 777.9300000000001 USD
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L990.TB.N4FXN4F.SS.SS-2.SS.2500

4268475

337.82 337.82 USD
On Hand: 0
451.30 451.3 USD
On Hand: 0
474.58 474.58 USD
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Wika Instrument Lp
L990.TB.N2FXN4F.SS.SS-2.SS.2500

4268467

351.35 351.35 USD
On Hand: 2
997.81 997.8100000000001 USD
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Wika Instrument Lp
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52031055

0.01 0.01 USD
On Hand: 1
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L990.10.N4FXN8F.CS.SS-2.CS.SS.VI.3625

9768195

148.38 148.38 USD
On Hand: 1