Purple Valves
PRPLZ207

Power Station Check Valve

Automatic non-return check valve providing reliable backflow prevention across a Class 150 to 1500 range.

Size1/2"-24"PressureANSI Class 150 to 1500PortFull portBodySwing
CategoriesCheck Valves
Overview

The Power Station Check Valve is an automatic non-return valve that allows flow in one direction and closes to prevent backflow whenever line pressure reverses. Closure is achieved by a swing element rather than a ball, so the valve seats under reverse pressure with no external operation required. Built in carbon, low-temperature and stainless steel grades across a Class 150 to 1500 pressure range and sizes from 1/2 inch to 24 inch, it suits a broad spread of process, pipeline and utility duties where reliable backflow protection is essential. Design, testing and face-to-face dimensions follow recognised API, ASME, BS and GOST standards.

Technical Detail

Specifications

Size Range
1/2"-24"
Pressure Rating
ANSI Class 150 to 1500
Temperature Range
-46°C to 232°C (-50°F to 450°F)
End Connections
Flanged (raised face / RTJ), with threaded and socket weld options
Body Material
WCB, LCC, LCB, CF8M, 2205 duplex and special materials
Ball / Disc / Wedge Material
Disc: stainless / Stellite-faced (TRIM 1, 5, 8, 12, 16 or special)
Seat Material
Stellite-faced / stainless steel (renewable seat)
Port Type
Full port
Body Style
Swing
Operation
Automatic (non-return)
Applications
Process piping, pipelines, power generation, oil and gas, and general industrial systems requiring backflow prevention.
Design Standard
API 594,API 6D,API 602,GOST 3327,BS 1868,BS EN 13709
Testing Standard
API 598
Face to Face Standard
ASME B16.10
At a Glance

Key Features

  • Automatic non-return operation prevents reverse flow
  • Swing closure element for reliable seating
  • Wide material range including carbon, low-temp and stainless grades
  • Class 150 to 1500 pressure ratings, sizes 1/2" to 24"
  • Tested to API 598; face-to-face to ASME B16.10
  • NACE-compliant options available

Options

  • NACE compliant
  • Special materials
  • Alternative trim selections

Standards & Certifications

  • API 594
  • API 6D
  • API 602
  • GOST 3327
  • BS 1868
  • BS EN 13709
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