Axial Flow Valves

High-performance axial flow valves with compact design, pressure-balanced bi-directional sealing, and customizable specifications for critical surface applications in energy and pipeline systems.

Surface Axial Flow Valves are high-performance industrial valves engineered for demanding fluid control applications in oil & gas, pipeline transportation, and safety systems such as HIPPS (High Integrity Pressure Protection Systems) and ESDV (Emergency Shut Down Valves). These valves feature a compact one-piece cast body with bi-directional flow and sealing, pressure-balanced design, and options for metal or soft seats. They deliver high flow coefficients with low pressure drop, precise sliding movement, and very low operating forces. Designed for both on-off isolation and control service, they include extensive anti-noise and anti-cavitation options, and are fire-safe per industry standards like API 607 and ISO 10497.

Main Features

  • One piece Design
  • Cast Body
  • Bi-Directional Flow and Sealing
  • Self-Energized Sealing
  • Multiple redundant sealing configuration
  • Pressure Balanced
  • Metal or soft seated
  • High flow coefficients
  • Precise sliding movement
  • Low pressure drop (on-off valves)
  • Extensive gamma of low noise and anti-cavitation trims (control Valves)
  • Perfect for anti-surge Application (control Valves)
  • Very low operating forces
  • Fire Safe Design (API 607, API 6FA, ISO 10497)

Options

  • Customized size and design pressure according to Project requirements
  • Forged Body
  • Emergency Grease Injection points on stem
  • Available Design Validation: API 6A PR2F, ISO 15848-1, API 6D
  • Client specific Type Approval or Design Validation test
  • PED
  • ATEX
  • Overlay Cladding on Sealing Areas
  • Painting according to Customer Specification
  • Larger or smaller size upon request
  • Higher pressure class upon request

Benefit

  • Compact envelope
  • Suitable for Fast stroke times (HIPPS, ESDV)
  • Perfect for Fluid Control

Technical Data

Main Design Standard

API 6D, API 6A, ISO 14313, ISO 10423

Applications
Platforms, High Integrity Pressure Protection System (HIPPS), Emergency Shut Down Valve (ESDV), Shut Down Valve (SDV), Motor Operated Valve (MOV), FPSO / Turret & Mooring System, Pipeline / Transportation, Antisurge / Control Valve
Size, Pressure Range

API 6D:
6”- 60”
Class: # 150-2500

API 6A:
5 1/8” – 21 ¼”
From RWP Form 13.8 MPa (2.000PSI) to RWP 69 MPa (10.000PSI)

Temperature Range
-100°C ÷ 250°C
Quality Controls
API 6D:
QSL 2, QSL3/3G, QSL4/4G
API 6A:
PSL-1, PSL-2, PSL-3, PSL-4
Materials

Main Components:

  • Carbon steel
  • Low temperature carbon steel
  • Stainless austenitic steel and super-austenitic steel
  • Stainless duplex and super-duplex
  • Nickel superalloys (such as Monel, Inconel 625, Hastelloy)

NACE material available upon request
Norsok material available upon request

Hard Facing (Metal Seated):

  • Ionic Nitriding
End Connections
Flanges, Compact Flanges, Hub Ends
Operators
  • Manual gear
  • Electric
  • Hydraulic actuator (FAI, FSC, FSO)
  • Pneumatic actuator (FAI, FSC, FSO)
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