Welded Diaphragm Seals

Welded Diaphragm Seal is a high-integrity pressure isolation device where the diaphragm is permanently welded to the body, eliminating potential leakage paths and ensuring maximum reliability. It is designed to protect pressure instruments such as gauges and transmitters from corrosive, viscous, high-temperature, or hazardous process media while maintaining accurate pressure transmission through a fill fluid.

This welded construction enhances mechanical strength and makes the seal suitable for critical and high-pressure applications where safety and zero leakage are essential. Manufactured from high-quality materials such as SS 316, SS 316L, Hastelloy, Monel, or other alloys, welded diaphragm seals provide excellent corrosion resistance and long service life even in harsh industrial environments.

Technical Details:

• Product Type: Welded Diaphragm Seal
• Material: SS 316 / SS 316L / Hastelloy / Monel / Alloy Steel
• Construction: Fully Welded (No Gasket Joint)
• Connection Type: Threaded / Flanged / Welded
• Diaphragm Type: Welded / Flush / Extended
• Fill Fluid: Silicone Oil / Glycerin / Fluorinated Fluid
• Pressure Range: Vacuum to High Pressure
• Temperature Range: -40C to 400C
• Mounting: Direct Mount / Capillary Type
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• Features:
• • Leak-proof welded construction
  • Eliminates gasket leakage points
  • Suitable for high-pressure applications
  • Excellent corrosion resistance
  • Accurate pressure transmission
  • High mechanical strength and durability
  • Low maintenance and long service life