TETROSEAL Flanged Diaphragm Seal

Flanged diaphragm seal for pharma, food/CIP-SIP, chemical, petrochemical and pulp & paper applications.

Technical Specifications
Flange Types: ANSI B16.5 Raised Face (RF) or Ring Type Joint (RTJ), EN 1092 Form B, JIS B2220
Flange Materials: Duplex, Hastelloy, Monel, Titanium
Diaphragm & Wetted Parts: Stainless Steel 316L, Alloy 20, Duplex, Hastelloy C-276, Incoloy 825, Inconel 625, Monel 400, Tantalum, Titanium, Zirconium
Coating Options: Gold, Rhodium, PFA, PTFE (Teflon)
Pressure Ranges: Vacuum to 1,600 bar
Temperature Range: -50°C to +400°C (depending on materials)
Material Selection Guide
Select your flanged diaphragm seal material based on your process media:

Stainless Steel 316L: General-purpose applications, water, mild chemicals
Hastelloy C-276: Strong acids, chlorine, seawater
Monel 400: Hydrofluoric acid, alkaline solutions
Tantalum: Highly corrosive acids except hydrofluoric acid
PTFE Coating: Non-stick surface for viscous or sticky media
The TETROSEAL flanged diaphragm seal provides reliable pressure measurement in contaminated, solidifying, hot, or highly viscous media. As part of PCI Instruments’ complete diaphragm seal range, this flush-welded design prevents material buildup and meets stringent hygienic requirements for pharmaceutical, chemical, and food processing applications.

Key Benefits
Flush-Welded Diaphragm: Eliminates dead spaces and crevices where process media can accumulate, meeting stringent hygienic requirements for pharmaceutical and food processing
Multiple Flange Standards: Compatible with ANSI, EN, and JIS flanges for easy integration into existing systems worldwide
Corrosion-Resistant Materials: Choose from 9 different diaphragm materials including Hastelloy, Monel, and Tantalum to match your specific chemical compatibility needs
High-Temperature Capability: Maintains accurate pressure measurement in processes up to 400°C, outperforming standard pressure gauges in extreme conditions