In-Line Diaphragm Seals

In-line diaphragm seals isolate instruments from harsh, corrosive, or viscous media, ensuring accurate pressure measurement in continuous process lines.

1 - 5 of 5 Products
Diaphragm In-Line Seals - 981.10
WIKA
Wika Diaphragm In-Line Seal, Model 981.10
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Diaphragm In-Line Seals - 981.27
WIKA
Wika Diaphragm In-Line Seal, Model 981.27
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Model 981.18, 981.19, 981.20, 981.21 In Line Diaphragm Seal with Sterile Connection
WIKA
WIKA In Line Diaphragm Seal with Sterile Connection, Model 981.18, 981.19, 981.20, 981.21
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Model 981.22, 981.52, 981.53 In Line Diaphragm Seal with Sterile Connection
WIKA
WIKA In Line Diaphragm Seal with Sterile Connection, Model 981.22, 981.52, 981.53
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Model 981.51 In-Line Diaphragm Seal with Sterile Connection
WIKA
WIKA In Line Diaphragm Seal with Sterile Connection, Model 981.51
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In-Line Diaphragm Seals

In-line diaphragm seals isolate pressure measurement instruments from harsh, corrosive, viscous, or abrasive process media in industrial applications. Installed directly into process lines, these seals feature a flexible diaphragm integrated within a cylindrical, flow-through housing. Pressure from the process fluid is transmitted through an inert, sealed fill fluid, allowing precise measurement while preventing direct contact between the sensitive instruments and aggressive media.

The key benefit of in-line diaphragm seals is their ability to ensure reliable, accurate, and consistent pressure readings by safeguarding instrumentation from contamination, corrosion, clogging, or damage. By providing an effective isolation barrier, these seals extend instrument life, significantly reduce maintenance costs, enhance safety, and minimize downtime associated with instrument failure or leaks, resulting in optimized process efficiency and reliability.

In-line diaphragm seals are used across diverse industry sectors, including chemical processing, oil and gas, pharmaceuticals, food and beverage manufacturing, water treatment, power generation, mining, pulp and paper, and petrochemical. Their streamlined design and ease of integration into pipelines make them particularly valuable in continuous-flow applications involving challenging media conditions.

Applications encompass the protection of pressure transmitters, gauges, and switches in chemical reactors, slurry handling systems, sanitary process lines, wastewater pipelines, high-viscosity fluid handling, and corrosive media transfer. By isolating instrumentation from adverse conditions, in-line diaphragm seals ensure precise measurement, reliable control, and operational safety.