Needle Valves - Pumps, Valves, Piping and Fittings
Needle valves are precision flow-control and isolation valves used in marine pump, piping, instrumentation, hydraulic, fuel, lubrication, and control systems. Their tapered needle and seat provide fine adjustment and reliable shutoff for relatively low-flow services.
ProShipWorks provides end-to-end support to source and supply Needle Valves for marine vessels, ship operators, industrial facilities, maintenance teams and procurement departments.
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Product Information
| Product Name | Needle Valves |
|---|---|
| Product Category | Pumps, Valves, Piping and Fittings |
| Product Reference | 693 |
| Brands / Manufacturers | Swagelok, Parker Hannifin, HOKE |
| Unit of Measure | Piece |
Key Features
| Key Feature |
|---|
| 1. Fine flow regulation |
| 2. Compact construction |
| 3. Metal-to-metal or soft-seat sealing options |
| 4. Stainless steel, brass, carbon steel, or alloy construction |
| 5. Threaded, tube, compression, or flanged connections |
Applications of Needle Valves
| Application |
|---|
| 1. Pump pressure and flow instrumentation lines |
| 2. Hydraulic, fuel, lubrication, and pneumatic systems |
| 3. Sampling, gauge isolation, drain, and vent connections |
Models & Manufacturers
| Model | Manufacturer |
|---|---|
| N Series Needle Valves | Swagelok |
| NV Series Needle Valves | Parker Hannifin |
| 1600 Series Needle Valves | HOKE |
Technical Specifications
| Model | Specification | Value | Unit |
|---|---|---|---|
| N Series Needle Valves | Typical body material | 316 stainless steel | — |
| N Series Needle Valves | Connection types | Tube, NPT, ISO/BSP, and other manufacturer options | — |
| NV Series Needle Valves | Valve function | Metering, throttling, and isolation | — |
| 1600 Series Needle Valves | Typical service | Instrumentation and low-flow control | — |
Standards, Certifications & Class Approval
Review the available standards and approval information relevant to the product. Actual certification, material traceability, inspection and classification requirements depend on the product type, intended application and purchasing specification.
| Applicable Standards & Certification | Applicable requirements may include ASME B16.34 for valves, MSS SP-99 for instrument valves, ASME B1.20.1 for NPT threads, ISO 228-1 for pipe threads, and ISO 15848 where fugitive-emission performance is specified. Certification depends on the selected design. |
|---|---|
| Class Approval | Generic needle valves are not automatically class-approved. Marine supply may require product documentation or type approval from DNV, ABS, Lloyd's Register, Bureau Veritas, or ClassNK when specified for classed systems. |
Installation, Maintenance & Safety Information
| Installation Notes | Confirm pressure, temperature, fluid compatibility, flow direction, connection standard, and required valve orientation before installation. Clean tubing and piping, use compatible thread sealant where permitted, and avoid using the valve handle to tighten fittings. |
|---|---|
| Maintenance Tips | Inspect periodically for leakage, corrosion, damaged threads, and difficult operation. Operate the valve through its travel during planned maintenance and replace worn packing, seats, or complete valves according to the manufacturer’s instructions. |
| Safety Notes | Depressurize, drain, isolate, and verify the system before removal or servicing. Do not use a needle valve as a substitute for a required emergency shutoff valve. Use materials and seals compatible with the conveyed fluid and operating temperature. |
Request a Quote for Needle Valves
Contact ProShipWorks for marine or industrial product sourcing, quotations and delivery.
- Vessel name and IMO number
- ETA / vessel schedule
- Berth or vessel location
- Required quantity
- Preferred delivery window
- Shipping agent contact details
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