Overview
The Deltrol N25B is a direct-acting needle valve engineered for hydraulic systems requiring precise flow restriction and control. Constructed from durable brass with female-to-female 3/8″ NPTF ports, this inline needle valve delivers reliable performance in industrial hydraulic circuits. The N25B is classified as a restrictive adjustable needle valve and is ideal for applications where fine, repeatable flow adjustment is critical.
Key Features
- Direct-acting design for straightforward operation
- Fine thread and tapered needle enabling wide range of flow adjustment
- Locknut option (N25BK variant) prevents unwanted changes in adjustment
- Positive shut-off capability for complete flow isolation
- Inline mounting configuration for compact integration
- Pressure-compensated seal material (Fluoropolymer) resists degradation
Technical Specifications
The Deltrol N25B meets demanding hydraulic system requirements with the following verified specifications:
Typical Applications
- Precision flow control in mobile and stationary hydraulic systems
- Metering flow in test stands and laboratory equipment
- Fine adjustment in injection molding machine circuits
- Flow restriction in packaging and material handling equipment
- Anti-cavitation and pilot drain applications
Compatibility & Replacements
Compatible With
- Standard hydraulic fluid power systems operating to 2000 PSI
- Inline manifold cavity designs accepting 3/8″ NPTF ports
- Mobile and industrial hydraulic circuits
- Systems using mineral-based hydraulic oil
Replaces / Drop-In Replacement For
The N25B is the base model. The N25BK variant includes a locking nut feature. Verify compatibility with your system integrator before ordering alternative needle valve models.
Works With
- Standard hydraulic pumps and actuator circuits
- Pressure gauges and monitoring equipment
- Proportional valve stacks and custom manifolds
- Relief valve assemblies for pilot flow control
