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MS4 / MSP4 Series - Aseptic Single Seat Valves

The MS4 and MSP4 aseptic single seat valve series are designed for applications in the food, beverage, dairy, pharmaceutical and chemical industries.  These valves are available in shut-off, change over, and tank outlet configurations.

MSP4 Diaphragm Valve

Key Advantages

  • Innovative fan support mechanism improves pressure range and diaphragm life
  • Flat, single-layer diaphragm design simplifies cleaning and ensures rapid leakage detection
  • Supports process pressures up to 145 psi (10 bar), depending on valve size
  • High temperature resilience for demanding applications
  • Multiple valve body configurations enable optimal system integration
  • Cost-effective maintenance compared to bellows-based designs
  • Certified to 3-A sanitary standards
  • MSP4 variant includes USP Class VI approved diaphragm and shaft materials
  • Available in ATEX-compliant models for hazardous environments
Key Applications

Food & Beverage Processing

Dairy Processing

Pharmaceutical Processing

Chemical Processing

Valve configurations: Single seat valves:

  • DELTA MS4 
  • DELTA MSP4  (with diaphragm shaft made of PTFE)
  • DELTA MSR4 (with regulating cone)

Tank outlet valves:

  • DELTA MST4
  • DELTA MSTP4 (with diaphragm shaft made of PTFE)

Change over valves:

  • DELTA MSES4

 

Pressure Ratings:

Operating Pressure:  Maximum line pressure: 145 psi (10 bar)

Temperature Ratings:

Operating temperature: Maximum  275ºF (135°C),  Short time 284ºF (140ºC) - no steam

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