Auto-Welded Bellows

Lower end of the metal bellows is automatically welded to the valve stem assembly, and the upper end to the connecting plate — forming a precision sealed unit.

Zero Stem Leakage

The welded bellows form a complete metal barrier between the fluid medium and the atmosphere, ensuring absolute zero leakage at the valve stem.

Double Seal Design

Bellows primary seal combined with packing secondary seal provides dual safety — if the bellows are ever compromised, the packing maintains the seal.

DIN & ANSI Standards

Available across DIN and ANSI standards for compatibility with international pipeline specifications and project requirements.

Reliable Metal Barrier

The metal bellows construction provides a permanent, corrosion-resistant barrier that outperforms traditional packing-only stem sealing methods.

Process & Chemical Duty

Designed for demanding process, chemical, pharmaceutical and power generation applications where stem leakage is unacceptable.