Purple Valves
PRPLZ162

Wafer Butterfly Valve

Compact wafer-type butterfly valve for quarter-turn on/off and throttling control in space-restricted piping.

SizeDN50 to DN600 (2" to 24")PressurePN10 / PN16 / ANSI Class 150PortStandard BoreBodyWafer, concentric
Overview

The ZQV Wafer Butterfly Valve uses a quarter-turn disc to control flow within a short, lightweight body that clamps directly between two pipe flanges, making it ideal where space and weight are at a premium. A single 90-degree rotation moves the disc from fully open to fully closed, giving fast operation for both isolation and throttling duties. The resilient seat liner forms a bubble-tight seal around the disc and bore, while the wafer design lowers installation cost and simplifies maintenance on water, HVAC, air and general process services.

Technical Detail

Specifications

Size Range
DN50 to DN600 (2" to 24")
Pressure Rating
PN10 / PN16 / ANSI Class 150
Temperature Range
-29°C to 120°C (-20°F to 250°F)
End Connections
Wafer (clamped between flanges)
Body Material
Ductile iron / WCB cast steel
Ball / Disc / Wedge Material
Ductile iron / stainless steel disc
Seat Material
EPDM / NBR / PTFE resilient liner
Stem Material
420 / 410 stainless steel
Port Type
Standard Bore
Body Style
Wafer, concentric
Operation
Lever
Applications
Water, HVAC, air and general process isolation and throttling in space-restricted piping.
Design Standard
API 609 / EN 593
Testing Standard
API 598
Face to Face Standard
ASME B16.10
At a Glance

Key Features

  • Short, lightweight wafer body for tight installations
  • Quarter-turn disc for fast on/off and throttling
  • Resilient seat liner for bubble-tight shut-off
  • Low cost and easy maintenance

Options

  • Lever, gear, electric or pneumatic actuation
  • EPDM, NBR or PTFE seat
  • Ductile iron or stainless disc

Standards & Certifications

  • API 609
  • EN 593
  • ASME B16.34
  • API 598
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