Overview
The Deltrol NM620SK-C33 needle valve is a precision-engineered flow restrictor built for demanding industrial and mobile applications. This model combines Deltrol’s proven needle valve design with a 1/4″ female connection, making it suitable for hydraulic, pneumatic, and fluid power systems. The NM620SK-C33 delivers repeatable flow adjustment and positive shut-off in a compact, reliable package.
Key Features
- Metal Setting Knob: Durable knob allows precise manual adjustment without tools
- Tapered Needle Design: Fine-thread mechanism enables smooth, wide-range flow control with minimal dead spots
- Locknut Prevention: Built-in locknut secures adjustment and prevents accidental drift
- Full Shut-Off Capability: Reliable positive closure for safety and system isolation
- Female-to-Female Connection: Standard 1/4″ NPTF ports for straightforward installation
Technical Specifications
- Connection Type: Female-to-Female
- Port Size: 1/4″ NPTF
- Flow Control: Restrictive / Adjustable
- Needle Type: Tapered needle with fine thread
- Adjustment Method: Metal knob
- Locking Feature: Locknut
- Fluid Compatibility: Hydraulic and pneumatic systems
Typical Applications
Deltrol needle valves like the NM620SK-C33 are ideal for:
- Plastic injection molding machines
- Packaging and automation equipment
- Machine tools and press equipment
- Automotive fluid systems
- Hospital equipment and hydraulic beds
- Mobile and industrial hydraulic circuits requiring precise flow metering
Compatibility & Replacements
Compatible With
- Hydraulic power units and circuits
- Pneumatic systems and compressors
- Mobile equipment hydraulics
- Industrial automation equipment requiring flow control
Replaces / Drop-In Replacement For
The NM620SK-C33 is a specific Deltrol model variant. Verify compatibility with your system integrator before ordering to ensure proper thread type, port size, and flow requirements.
Works With
- NPTF threaded ports (standard industrial fluid power connections)
- Hydraulic fluids (ISO VG 32–68 typical)
- Pneumatic/compressed air systems
- Water-glycol and other compatible fluids per Deltrol specification
