Purple Valves
PRPLZ165

API6D Carbon Steel Check Valve 150LB 300LB

An API 6D carbon steel check valve rated for ASME Class 150 and 300 backflow prevention in pipeline and process service.

Size1/2"-24"PressureANSI Class 150 to 300PortFull PortBodyBolted Bonnet
CategoriesCheck Valves
Overview

The API6D Carbon Steel Check Valve 150LB 300LB is a non-return valve engineered to prevent reverse flow and protect pumps, compressors and downstream equipment from backflow and water hammer. Built with a carbon steel (wcb), with lcc, lcb, cf8m, 2205 and special grades available and a stainless steel disc with hardfaced seating per trim options, the valve opens automatically under forward line pressure and closes under the weight of the closure member or spring assistance the instant flow reverses. Supplied with flanged raised face (asme class 150 / 300), with rtj available and rated to ANSI Class 150 to 300, it is designed and tested to recognised international standards for dependable, low-maintenance service across oil and gas, petrochemical, power and water applications.

Technical Detail

Specifications

Size Range
1/2"-24"
Pressure Rating
ANSI Class 150 to 300
Temperature Range
-46°C to 232°C (-50°F to 450°F)
End Connections
Flanged Raised Face (ASME Class 150 / 300), with RTJ available
Body Material
Carbon steel (WCB), with LCC, LCB, CF8M, 2205 and special grades available
Ball / Disc / Wedge Material
Stainless steel disc with hardfaced seating per TRIM options
Seat Material
Hardfaced (Stellite) / metal seat, with soft seat options
Port Type
Full Port
Body Style
Bolted Bonnet
Operation
Automatic (non-return)
Applications
Oil and gas, petrochemical, power generation, water treatment and general industrial pipelines
Design Standard
API 6D, API 594, BS 1868
Testing Standard
API 598
Face to Face Standard
ASME B16.10
At a Glance

Key Features

  • API 6D compliant swing-disc design
  • Carbon steel (WCB) body
  • Class 150 and 300 flanged ratings
  • Hardfaced trim options
  • NACE-compliant construction available

Options

  • NACE compliant
  • Special alloys (CF8M, 2205, LCC, LCB)
  • Soft or metal seat
  • RTJ flange facing

Standards & Certifications

  • API 6D
  • API 598
  • ASME B16.10
  • NACE MR0175 (optional)
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