Needle Valves
Stainless Steel Integral Bonnet Forged Double Ferrule Needle Valve
316 stainless steel integral bonnet needle valves for shutoff and controlled flow regulation in instrumentation and industrial fluid systems. BN and BNH Series are available with NPT threaded or fractional and metric tube-fitting connections, with working pressures up to 5,000 psig depending on series and configuration.
Specifications
- Product Type
- Integral Bonnet Needle Valve
- Series
- BN / BNH
- Standard Material
- 316 Stainless Steel
- Maximum Working Pressure
- BN: 3,000 psig (207 bar); BNH: 5,000 psig (345 bar)
- Connection Options
- Female NPT, Male NPT, Fractional Tube Fitting, Metric Tube Fitting
- Fractional Tube Sizes
- 1/8 to 3/4 in.
- Metric Tube Sizes
- 3 to 20 mm
- Flow Patterns
- Straight, Angle and 3-Way configurations
- Packing Options
- PTFE / PEEK
- Packing Temperature Range
- PTFE: -65°F to 450°F (-54°C to 232°C); PEEK: -65°F to 500°F (-54°C to 260°C)
- Stem Options
- Taper / Vee / Regulating Stem
- Mounting
- Panel mounting available
Overview
The StarkValve Stainless Steel Integral Bonnet Forged Double Ferrule Needle Valve provides compact shutoff and controlled flow regulation for instrumentation tubing and piping systems.
The one-piece forged body and integral bonnet construction provide a compact valve design for instrumentation, sampling, pressure measurement, hydraulic, and process-fluid applications.
BN and BNH Series are available with NPT threaded or fractional and metric tube-fitting connections, with working pressures up to 3,000 psig (207 bar) for BN Series and 5,000 psig (345 bar) for BNH Series, depending on the selected configuration and operating temperature.
Straight-pattern valves are standard, with angle and 3-way configurations available within the series.
Key Features
- Integral bonnet construction for a compact valve design
- One-piece forged stainless steel body
- BN Series rated up to 3,000 psig (207 bar)
- BNH Series rated up to 5,000 psig (345 bar)
- Female NPT, Male NPT, and tube-fitting connection options
- Fractional and metric tube sizes available
- Straight, angle, and 3-way configurations
- PTFE and PEEK packing options
- Panel-mounting capability for instrumentation installations
Engineering Specifications
Series | Maximum Working Pressure | Packing | Packing Temperature Range |
|---|---|---|---|
BN | Up to 3,000 psig (207 bar) | PTFE | -65°F to 450°F (-54°C to 232°C) |
BN | Up to 3,000 psig (207 bar) | PEEK | -65°F to 500°F (-54°C to 260°C) |
BNH | Up to 5,000 psig (345 bar) | PTFE | -65°F to 450°F (-54°C to 232°C) |
BNH | Up to 5,000 psig (345 bar) | PEEK | -65°F to 500°F (-54°C to 260°C) |
Maximum working pressure is configuration- and temperature-dependent. The maximum pressure values shown above should not be interpreted as constant pressure ratings across the full packing temperature range. Confirm the allowable working pressure for the selected size, connection, packing, and operating temperature.
Connection & Size Options
Connection Type | Available Sizes |
|---|---|
Female NPT | 1/8 to 3/4 in. |
Male NPT | 1/8 to 3/4 in. |
Fractional Tube Fitting | 1/8 to 3/4 in. |
Metric Tube Fitting | 3 to 20 mm |
Straight-pattern valves are available across the principal connection formats. Angle and 3-way configurations are available for applications requiring different installation or flow-routing arrangements.
Representative Flow Data
Connection / Tube Size | Orifice | Cv |
|---|---|---|
1/8 in. Female NPT | 0.12 in. (3.0 mm) | 0.20 |
1/4 in. Female NPT | 0.16 in. (4.0 mm) | 0.35 |
3/8 in. Female NPT | 0.20 in. (5.1 mm) | 0.56 |
1/2 in. Female NPT | 0.25 in. (6.4 mm) | 0.70 |
3/4 in. Female NPT | 0.29 in. (7.5 mm) | 0.55 |
1/4 in. Tube Fitting | 0.16 in. (4.0 mm) | 0.35 |
3/8 in. Tube Fitting | 0.20 in. (5.1 mm) | 0.56 |
1/2 in. Tube Fitting | 0.25 in. (6.4 mm) | 0.70 |
3/4 in. Tube Fitting | 0.29 in. (7.5 mm) | 0.55 |
Orifice and Cv values vary by connection size and valve configuration. Confirm the required flow capacity when selecting a specific valve.
Materials of Construction
The standard configuration uses a 316 stainless steel valve body, with stainless steel internal components and packing selected according to the required service conditions.
For applications requiring specific material compatibility, documentation, or traceability requirements, provide the process media, operating temperature, working pressure, and project requirements before ordering.
Pressure & Temperature Considerations
BN Series configurations are available with maximum working pressures up to 3,000 psig (207 bar), while BNH Series configurations are available up to 5,000 psig (345 bar).
These values represent maximum pressure ratings for applicable configurations and should not be treated as constant working pressures across the complete temperature range.
Allowable working pressure depends on the selected series, connection size, packing, valve configuration, and operating temperature.
PTFE and PEEK packing provide different temperature capabilities. Packing selection should therefore be based on the complete combination of operating pressure, temperature, process media, and valve configuration.
For applications approaching the maximum pressure or temperature limits, confirm the required operating conditions before ordering.
Typical Applications
- Instrumentation and process-control systems
- Pressure and flow-isolation lines
- Analyzer and sampling systems
- Hydraulic and pneumatic control circuits
- Test and calibration equipment
- Chemical and process-fluid systems
- Industrial gas and liquid-handling systems
- Instrument panels and compact fluid-control assemblies
Final valve selection should be based on pressure, temperature, process media, flow requirements, connection type, and compatibility with the surrounding system.
Selection & Ordering
For correct valve selection, specify:
- BN or BNH pressure series
- Required inlet and outlet connection type
- Connection or tube size
- Straight, angle, or 3-way configuration
- Stem type
- PTFE or PEEK packing
- Operating pressure and temperature
- Process media
- Required quantity
- Testing, documentation, drawing, or BOM requirements where applicable
For replacement projects, send the existing valve part number, connection details, or drawing so the required configuration can be reviewed before quotation.
