In-Line Hygienic Diaphragm Seals

While standard diaphragm seals mount adjacent to pipework and can cause flow turbulence or product stagnation, our premium In-Line Hygienic Seals are inserted directly into the fluid stream. Featuring a completely round, circumferential internal diaphragm that mirrors the exact inner diameter of your pipework, this design provides an unobstructed, full-bore transition. It is the gold standard for monitoring pressure in lines carrying fast-flowing, highly viscous, or shear-sensitive media, entirely eliminating dead zones where product could settle and breed bacteria.

Comprehensive Pipeline Integration

To accommodate diverse hygienic and industrial piping frameworks, these in-line units can be manufactured with several standard process connections:

• Screwed Male Threads: Available in DIN standards (DN 15 to DN 100) or SMS standards (1″ to 3″).
• Clamped Fittings: Standard Tri-Clamp compatible configurations spanning 1/2″ to 3″.
• Flanged Connections: Manufactured to DIN standards (DN 25 to DN 100) or ANSI B 16.5 standards (1″ to 4″).

High-Performance Architecture & Compliance

Built from high-grade stainless steel to survive rigorous Clean-in-Place (CIP) and Sterilise-in-Place (SIP) maintenance cycles:

• Fluid Compatibility: Factory-filled with standard FDA-approved non-toxic glycerine, ensuring total safety and validation compliance within food and drug production lines.
• Instrument Interface: Equipped with a standard 1/2″ BSP connection to accept your pressure gauges, switches, or digital transmitters.
• Exceptional Pressure Range: While rated at a standard 40 bar maximum, these robust assemblies can be engineered to handle high-pressure systems up to 400 bar.

Available Custom Options

• Specialised Protective Coatings: Available with advanced surface coatings to resist aggressive chemical washdowns or highly abrasive media.
• Integrated Cooling Tower: Highly recommended for processing lines where medium or sterilisation temperatures exceed 100°C, shielding the gauge internals from excessive heat.
• Remote Capillary Line: For routing the display indicator away from vibrating pipework to a safe, centralised monitoring panel.

Are you designing a high-purity pharmaceutical loop or a high-viscosity food blending line? Despite being a premium instrumentation option, we offer highly competitive pricing and rapid custom fabrication turnarounds. Contact our UK technical sales engineers today to specify your exact pipe sizing.