Unmatched Engineering Features for Maximum ROI

What truly sets the VM Series apart are the innovative, patented design solutions that directly address and solve the most common causes of valve failure in industrial settings.

1. Robust, Service-Friendly Metal Yoke

Enables simple and optimal assembly of mechanical or inductive limit switches. The yoke can be removed from one side, providing unparalleled ease of access for maintenance and drastically reducing service downtime and associated labor costs.

2. Bubble-Tight Seal on the Gate Edge

A mechanically retained, precision round cord seal creates a perfect, bubble-tight shut-off against the gate. This ensures zero media bypass, protects sensitive downstream equipment, and prevents product loss.

3. Unique, Patented Transverse Seal System

The cornerstone of WEY SISTAG’s design genius. A unique seal profile and packing compound make the valve body completely bubble-tight towards the atmosphere. Crucially, it can be repacked under full line pressure using lateral packing screws, eliminating the need for complete valve disassembly. This revolutionary feature is a game-changer for continuous operations, minimizing planned and unplanned shutdowns.

4. Full Mechanical Guidance & Support

The gate is mechanically guided over its entire stroke and positively supported in the closed position. This prevents gate flutter, vibration, and misalignment—common issues with abrasive media—dramatically extending the valve’s service life and reducing wear.

5. Optimized, Self-Cleaning Gate Geometry

The intelligent gate design actively prevents media accumulation and clogging. It pushes built-up material out of the gate guide and flushes it back into the bore, ensuring reliable operation cycle after cycle, even with sticky or particulate-laden fluids.