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Spülrohr

Shut-off Valves & Gate Valves

Proven solution for manual
shut-off and flow control

Proven foundation for reliable process performance

What's the difference? Valve vs. gate valve

Although both are used to shut off pipelines, the key difference lies in their construction.

This determines whether a valve type is suitable solely for on/off operation or also for precise flow regulation (throttling).

The designs in direct comparison

Shut-off valves (disk valves)

  • To interrupt the flow, the valve disc is pressed firmly onto the valve seat, ensuring a reliable seal.

  • This design is ideal for precise control.

  • Main advantage: Provides precise and finely adjustable throttling for accurate flow regulation.

  • Further features: High tightness at high pressures, compact design.

  • Typical variants: needle valves (for ultra-fine control) or diaphragm valves (for aggressive media).

Gate valve

  • The flow is interrupted by a wedge gate that moves through the media stream. In the open position, it allows full bore flow without restriction.

  • Key advantage: Extremely low flow resistance when fully open – comparable to a ball valve.

  • Additional features: Ideally configured for large-diameter pipelines and media containing solid particles.

  • Typical variants: Wedge gate valves (for high sealing performance) and knife gate valves (for reliable separation of media with solids).

Our hand fittings at a glance

– whether for maintenance, for bypass lines or as a primary safety barrier

Spülrohr
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Shut-off valves

  • Designs: Angle seat, straight seat, angle, needle & outlet valves

  • Housing: Brass, stainless steel, gray cast iron (GG-25), cast steel (GSC)

  • Connections: Thread (internal/external), welding ends, DIN flange

  • Seals: Metallic, NBR, EPDM, PTFE

  • Sizes: 1/8" to 3" and various DN sizes

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  • Housing: ductile iron (GGG), brass, gunmetal, stainless steel

  • Connections: internal thread, DIN flange

  • Seals: Metallic, NBR, EPDM

  • Sizes: 1 1/4" to 4" and DN40 to DN600

  • Approvals: e.g. DVGW-Wasser

Gate valve

Looking for an automated valve solution?

For processes that require remote operation, fast cycle times, or seamless integration into your control system, our automated valves represent the next level of performance. They are often combined with a manually operated valve installed upstream, serving as a maintenance or safety shut-off.

Features of gate valves:

  • Minimal flow resistance: When open, there is almost no pressure loss.

  • Designed for large-diameter pipelines: Particularly effective in high-flow applications.

  • Robust construction: Less prone to wear in media containing solid particles.

Your contact for high-quality and reliable valve solutions.

MMER 

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Automation

Since 1958

WE SAY THANK YOU FOR ALMOST 70 YEARS OF TRUST.

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