Needle Valves

High-integrity subsea needle valve for chemical injection and control lines — compact, low-torque, metal-to-metal sealing, and rated for deep-water use.

The ATV Subsea Needle Valve is a high-performance, precision control valve designed for demanding subsea environments. Built to deliver reliable isolation and flow regulation in chemical injection, instrumentation, bleed, and vent lines, this valve combines compact design with low-torque operation, even in deep-water conditions.

It is available in multiple configurations, including Single Isolation, Single Block & Bleed, Double Isolation, and Double Block & Bleed. The valve supports a wide range of end connections and features a non-rotating, self-centering, anti-galling tip that ensures excellent sealing performance and extends service life.

Its robust construction includes metal-to-metal body-bonnet sealing, primary metal static seals, thermoplastic stem seals, and elastomeric environmental barriers to prevent seawater ingress. An anti-blow-out stem adds an extra layer of safety. Qualified to industry standards such as API 17D, API 6A, and API 6DSS, the valve benefits from field-proven technology at TRL-7 and is engineered to deliver a long, maintenance-free operating life.

Operating across wide temperature ranges and suitable for depths up to 3,048 m (10,000 ft), it can be equipped with various operator interfaces including X-bar, Y-bar, T-bar, or ROV paddle.

Main Features

  • Available in Single Isolation, Single Block & Bleed, Double Isolation and Double Block and Bleed configurations
  • Non-Rotating, Self-Centering, Anti-Galling tip
  • Metal-to-Metal design
  • Primary metal static sealing
  • Primary thermoplastic seals for stem sealing
  • Elastomeric environmental seal to prevent seawater ingress
  • Anti blow-out stem
  • Design validation to API 17D / API 6A or API 6DSS
  • Field-Proven technology up to TRL7 due to a large installed base
  • Long design life, maintenance free

Options

  • Customized size and design pressure according to Project requirements
  • Integral design in large bore valves
  • Extended Stem
  • Client specific Type Approval or Design Validation test
  • PED
  • Painting according to Customer Specification

Benefit

  • Wide variety of configurations and end connections
  • Compact, light-weight solution
  • Low torque operation

Technical Data

 

Main Design Standard
API 17D, API 6DSS, ISO 13628-4, ISO 14723

 

Applications

Chemical Injection Isolation, Instrumentation and Controls, Bleed and Vent Lines
Size, Pressure Range
½”, ¾”, up to Class 2500 or 15.000 psi

 

Temperature Range

-46°C ÷ 177°C

 

Water Depth

  • Up to 3048 m (10.000 ft)
  • Greater Depth upon application

Quality Controls

API 6DSS
QL-1 or QL-2
API 17D
PSL-3, PSL-4

 

Materials

Main Components:

  • Carbon Steel or Low Alloy Steel
  • Stainless Steel
  • Duplex and Superduplex Stainless Steel
  • Nickel Alloys

NACE material available upon request
Norsok material available upon request

End Connections
  • Inlet: Flanges, Compact Flanges, Studded Flanges, Buttwelded ends, Hub Ends, Medium Pressure
  • Outlet & Bleed: Flanges, Compact Flanges, Studded Flanges, Buttwelded ends, Hub Ends, JIC, SAE, NPT, BSP & Medium Pressure
Operators
  • X, Y, T-bars
  • ROV Paddle
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