In-line Needle Valves
Straight-through flow design for direct integration in process lines
What Are In-Line Needle Valves?
In-line needle valves are precision flow control devices designed to be installed directly within a straight run of piping or tubing. The inlet and outlet ports are aligned on the same axis (180 degrees apart), allowing fluid to enter and exit along a straight path.
This configuration is ideal for standard pressure measurement points where the piping layout is already linear, eliminating the need for additional elbows or fittings.
Common applications include: pressure gauge isolation, transmitter isolation in straight runs, and standard process instrumentation where the flow path follows the pipe direction.
Minimal pressure drop with straight-through flow path
Technical Specifications
- Pressure Rating
6,000 PSI | 10,000 PSI | 15,000 PSI
- Connection Types
Female/Female Threaded (F/T-F/T)
Male/Female Threaded (M/T-F/T)
Male/Male Threaded (M/T-M/T)
Butt Weld - Female Threaded (BW-F/T)
Socket Weld - Female Threaded (SW-F/T)- Sizes
1/4” NPT | 3/8” NPT | 1/2” NPT | 3/4” NPT | 1” NPT
- Materials
Stainless Steel 316/316L, Duplex, Alloy 625, Alloy 825, Hastelloy, Titanium, 6Mo, Monel 400
All materials NACE MRO175/ISO 15156 compliant for sour service- Seat Seal Options
Metal-to-metal (optional Stellite-coated) | PTFE | Graphite
- Mounting
Standard | Panel mounting
Key Features
Straight-Through Flow
Direct Integration into Process Lines
Butt Weld and Socket Weld Options
Vent Design Available
Where In-Line Valves Excel
In-line needle valves are the ideal choice for:
Pressure gauge isolation in straight pipe runs
Transmitter isolation where linear flow is required
Standard process instrumentation without directional changes
Applications where pipe routing is already linear and space permits
Need a different configuration?
Explore our Angle-Body valves for space-saving 90° designs, or Multiport valves for complex instrumentation setups.
