Water pressure regulator and reducer 420

for potable waterdiaphragmcast iron

Overview
Hydraulically operated, pressure reducing control valve that reduces higher upstream pressure to lower constant downstream pressure, regardless of fluctuating demand or varying upstream pressure.

Key Features & Benefits

• Line pressure driven – Independent operation
• High performance control trim
  • High stability and accuracy at wide flow range
  • Drip tight sealing
• Flexible design - Easy addition of features
• Advanced globe hydro-efficient design
  • Unobstructed flow path
  • Single moving part
  • Non-turbulent flow
  • High flow capacity
• Fully supported & balanced diaphragm
  • Excellent low flow regulation performance
  • Progressively restrains valve closing
  • Prevents diaphragm distortion
• In-line serviceable
  • Easy maintenance
  • Minimal down time

Typical Applications

• Highrise and midrise residential buildings - Reducing pressure at the pressure zone inlet
• Municipal systems - Reducing pressure at potable water connections to buildings and structures

Documentation (selected)

• 420 - Product Page (Metric, English)
• 420 - Product Page (Imperial, English)
• 420 - IOM (Installation & Maintenance) - English

Technical specifications

• Model: 420
• Product type: Pressure Reducing Valve
• Series: 400 Series
• Product barcode / internal code: 30400
• Operation: Hydraulically operated, line pressure driven
• Design highlights: Globe hydro-efficient design, fully supported & balanced diaphragm, single moving part
• Serviceability: In-line serviceable for easy maintenance and minimal downtime
• Primary applications: Buildings & Construction, Waterworks