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    Special Alloys Locked Bonnet Needle Valves - Straight
    Special Alloy Needle Valves
        
    
    
            
                
                    
                        
                
            
                
            
        
    LN Series Needle Valves feature non-rotating stems, locking bonnets, and live-loaded packing making them suitable for instrumentation and other application in oil & gas exploration, power, petro-chemicals and other applications where durability and reliable operation in tough conditions are critical.  
Our website contains the most popular LN Series needle valve configurations - more options and accessories are available.  For more information, contact SSP Customer Service.
Specifications
- Pressure: Up to 6,000 psig (413 bar)
 - Temperatures:-100 to 1200° F (-73 to 648° C)
 - Pattern: Straight and Angle
 - Stems:
 - Metal Seal: V, Metering, Regulating and metering tip
 - Soft Seal: PCTFE Tip
 - Material
 - Body: 316 SS, Alloy 400 and Alloy C-276
 - Packing: PTFE, Grafoil
 - Orifice Sizes: 0.156, 0.250 and 0.437 in
(3.96 to 11.1 mm) - End Connection
 - Size: 1/8 to 1/2 (6 to 12 mm tube fittings only)
 - Type: NPT, Socket Weld and Tube Fitting
 
LN Series Options and Accessories
In addition to the product offered on our website, other options and and accessories are available.  These include:
- Pipe Socket Weld End Connections
 - Speciall Clean in accordance with ASTM 93G Level
 - Sour Gas Service
 - Replacement Caps
 - Rebuild Kits
 - LN Series Angle Valves
 
                            Part # | 
                        
                            CAD | 
                        
                            Body Material | 
                        
                            Inlet Type | 
                        
                            Inlet Size | 
                        
                            Outlet Type | 
                        
                            Outlet Size | 
                        
                            Cv | 
                        
                            Orifice | 
                        
                            Stem Type | 
                        
                            SSP P/N | 
                        
                            Packing Material | 
                        
                            Stem Material | 
                        
                            Production Category | 
                        
                            Product Descriptions | 
                        
                            Description Text | 
                                                        
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| LN4K-2PF-M | 
                                    
                                        CAD                                                    
 N/A                                                         | 
                                Body Material N/A Alloy 400 | Inlet Type N/A FNPT | Inlet Size N/A 1/8 in | Outlet Type N/A FNPT | Outlet Size N/A 1/8 in | Cv N/A 0.34 | Orifice N/A 0.16 in4.1 mm | Stem Type N/A Shutoff, PTFE | SSP P/N N/A LN4K-2PF-M | Packing Material N/A PTFE | Stem Material N/A Chrome-Plated Alloy 400 | Production Category N/A 3 | Product Descriptions N/A Female NPT Needle Valve | Description Text N/A Locked Bonnet Needle Valves | 
| LN4K-4PF-M | 
                                    
                                        CAD                                                    
 N/A                                                         | 
                                Body Material N/A Alloy 400 | Inlet Type N/A FNPT | Inlet Size N/A 1/4 in | Outlet Type N/A FNPT | Outlet Size N/A 1/4 in | Cv N/A 0.34 | Orifice N/A 0.16 in4.1 mm | Stem Type N/A Shutoff, PTFE | SSP P/N N/A LN4K-4PF-M | Packing Material N/A PTFE | Stem Material N/A Chrome-Plated Alloy 400 | Production Category N/A 3 | Product Descriptions N/A Female NPT Needle Valve | Description Text N/A Locked Bonnet Needle Valves | 
| LN4K-D4-M | 
                                    
                                        CAD                                                    
 N/A                                                         | 
                                Body Material N/A Alloy 400 | Inlet Type N/A Duolok Tube Fitting | Inlet Size N/A 1/4 in | Outlet Type N/A Duolok Tube Fitting | Outlet Size N/A 1/4 in | Cv N/A 0.34 | Orifice N/A 0.16 in4.1 mm | Stem Type N/A Shutoff, PTFE | SSP P/N N/A LN4K-D4-M | Packing Material N/A PTFE | Stem Material N/A Chrome-Plated Alloy 400 | Production Category N/A 3 | Product Descriptions N/A Duolok Tube End Needle Valve | Description Text N/A Locked Bonnet Needle Valves | 
| LN4M-2PF-M | 
                                    
                                        CAD                                                    
 N/A                                                         | 
                                Body Material N/A Alloy 400 | Inlet Type N/A FNPT | Inlet Size N/A 1/8 in | Outlet Type N/A FNPT | Outlet Size N/A 1/8 in | Cv N/A 0.28 | Orifice N/A 0.16 in4.1 mm | Stem Type N/A Metering | SSP P/N N/A LN4M-2PF-M | Packing Material N/A PTFE | Stem Material N/A Chrome-Plated Alloy 400 | Production Category N/A 3 | Product Descriptions N/A Female NPT Needle Valve | Description Text N/A Locked Bonnet Needle Valves | 
| LN4M-4PF-M | 
                                    
                                        CAD                                                    
 N/A                                                         | 
                                Body Material N/A Alloy 400 | Inlet Type N/A FNPT | Inlet Size N/A 1/4 in | Outlet Type N/A FNPT | Outlet Size N/A 1/4 in | Cv N/A 0.28 | Orifice N/A 0.16 in4.1 mm | Stem Type N/A Metering | SSP P/N N/A LN4M-4PF-M | Packing Material N/A PTFE | Stem Material N/A Chrome-Plated Alloy 400 | Production Category N/A 3 | Product Descriptions N/A Female NPT Needle Valve | Description Text N/A Locked Bonnet Needle Valves | 
| LN4M-D4-M | 
                                    
                                        CAD                                                    
 N/A                                                         | 
                                Body Material N/A Alloy 400 | Inlet Type N/A Duolok Tube Fitting | Inlet Size N/A 1/4 in | Outlet Type N/A Duolok Tube Fitting | Outlet Size N/A 1/4 in | Cv N/A 0.28 | Orifice N/A 0.16 in4.1 mm | Stem Type N/A Metering | SSP P/N N/A LN4M-D4-M | Packing Material N/A PTFE | Stem Material N/A Chrome-Plated Alloy 400 | Production Category N/A 3 | Product Descriptions N/A Duolok Tube End Needle Valve | Description Text N/A Locked Bonnet Needle Valves | 
| LN4R-2PF-M | 
                                    
                                        CAD                                                    
 N/A                                                         | 
                                Body Material N/A Alloy 400 | Inlet Type N/A FNPT | Inlet Size N/A 1/8 in | Outlet Type N/A FNPT | Outlet Size N/A 1/8 in | Cv N/A 0.23 | Orifice N/A 0.16 in4.1 mm | Stem Type N/A Regulating | SSP P/N N/A LN4R-2PF-M | Packing Material N/A PTFE | Stem Material N/A Chrome-Plated Alloy 400 | Production Category N/A 3 | Product Descriptions N/A Female NPT Needle Valve | Description Text N/A Locked Bonnet Needle Valves | 
| LN4R-4PF-M | 
                                    
                                        CAD                                                    
 N/A                                                         | 
                                Body Material N/A Alloy 400 | Inlet Type N/A FNPT | Inlet Size N/A 1/4 in | Outlet Type N/A FNPT | Outlet Size N/A 1/4 in | Cv N/A 0.23 | Orifice N/A 0.16 in4.1 mm | Stem Type N/A Regulating | SSP P/N N/A LN4R-4PF-M | Packing Material N/A PTFE | Stem Material N/A Chrome-Plated Alloy 400 | Production Category N/A 3 | Product Descriptions N/A Female NPT Needle Valve | Description Text N/A Locked Bonnet Needle Valves | 
| LN4R-D4-M | 
                                    
                                        CAD                                                    
 N/A                                                         | 
                                Body Material N/A Alloy 400 | Inlet Type N/A Duolok Tube Fitting | Inlet Size N/A 1/4 in | Outlet Type N/A Duolok Tube Fitting | Outlet Size N/A 1/4 in | Cv N/A 0.23 | Orifice N/A 0.16 in4.1 mm | Stem Type N/A Regulating | SSP P/N N/A LN4R-D4-M | Packing Material N/A PTFE | Stem Material N/A Chrome-Plated Alloy 400 | Production Category N/A 3 | Product Descriptions N/A Duolok Tube End Needle Valve | Description Text N/A Locked Bonnet Needle Valves | 
| LN4V-2PF-M | 
                                    
                                        CAD                                                    
 N/A                                                         | 
                                Body Material N/A Alloy 400 | Inlet Type N/A FNPT | Inlet Size N/A 1/8 in | Outlet Type N/A FNPT | Outlet Size N/A 1/8 in | Cv N/A 0.34 | Orifice N/A 0.16 in4.1 mm | Stem Type N/A Shutoff, Vee | SSP P/N N/A LN4V-2PF-M | Packing Material N/A PTFE | Stem Material N/A Chrome-Plated Alloy 400 | Production Category N/A 3 | Product Descriptions N/A Female NPT Needle Valve | Description Text N/A Locked Bonnet Needle Valves | 
| LN4V-4PF-M | 
                                    
                                        CAD                                                    
 N/A                                                         | 
                                Body Material N/A Alloy 400 | Inlet Type N/A FNPT | Inlet Size N/A 1/4 in | Outlet Type N/A FNPT | Outlet Size N/A 1/4 in | Cv N/A 0.34 | Orifice N/A 0.16 in4.1 mm | Stem Type N/A Shutoff, Vee | SSP P/N N/A LN4V-4PF-M | Packing Material N/A PTFE | Stem Material N/A Chrome-Plated Alloy 400 | Production Category N/A 3 | Product Descriptions N/A Female NPT Needle Valve | Description Text N/A Locked Bonnet Needle Valves | 
| LN4V-D4-M | 
                                    
                                        CAD                                                    
 N/A                                                         | 
                                Body Material N/A Alloy 400 | Inlet Type N/A Duolok Tube Fitting | Inlet Size N/A 1/4 in | Outlet Type N/A Duolok Tube Fitting | Outlet Size N/A 1/4 in | Cv N/A 0.34 | Orifice N/A 0.16 in4.1 mm | Stem Type N/A Shutoff, Vee | SSP P/N N/A LN4V-D4-M | Packing Material N/A PTFE | Stem Material N/A Chrome-Plated Alloy 400 | Production Category N/A 3 | Product Descriptions N/A Duolok Tube End Needle Valve | Description Text N/A Locked Bonnet Needle Valves | 
| LN4VG-2PF-M | 
                                    
                                        CAD                                                    
 N/A                                                         | 
                                Body Material N/A Alloy 400 | Inlet Type N/A FNPT | Inlet Size N/A 1/8 in | Outlet Type N/A FNPT | Outlet Size N/A 1/8 in | Cv N/A 0.34 | Orifice N/A 0.16 in4.1 mm | Stem Type N/A Shutoff, Vee | SSP P/N N/A LN4VG-2PF-M | Packing Material N/A Flexible Graphite | Stem Material N/A Chrome-Plated Alloy 400 | Production Category N/A 3 | Product Descriptions N/A Female NPT Needle Valve | Description Text N/A Locked Bonnet Needle Valves | 
| LN4VG-4PF-M | 
                                    
                                        CAD                                                    
 N/A                                                         | 
                                Body Material N/A Alloy 400 | Inlet Type N/A FNPT | Inlet Size N/A 1/4 in | Outlet Type N/A FNPT | Outlet Size N/A 1/4 in | Cv N/A 0.34 | Orifice N/A 0.16 in4.1 mm | Stem Type N/A Shutoff, Vee | SSP P/N N/A LN4VG-4PF-M | Packing Material N/A Flexible Graphite | Stem Material N/A Chrome-Plated Alloy 400 | Production Category N/A 3 | Product Descriptions N/A Female NPT Needle Valve | Description Text N/A Locked Bonnet Needle Valves | 
| LN4VG-D4-M | 
                                    
                                        CAD                                                    
 N/A                                                         | 
                                Body Material N/A Alloy 400 | Inlet Type N/A Duolok Tube Fitting | Inlet Size N/A 1/4 in | Outlet Type N/A Duolok Tube Fitting | Outlet Size N/A 1/4 in | Cv N/A 0.34 | Orifice N/A 0.16 in4.1 mm | Stem Type N/A Shutoff, Vee | SSP P/N N/A LN4VG-D4-M | Packing Material N/A Flexible Graphite | Stem Material N/A Chrome-Plated Alloy 400 | Production Category N/A 3 | Product Descriptions N/A Duolok Tube End Needle Valve | Description Text N/A Locked Bonnet Needle Valves | 
| LN6K-4PF-M | 
                                    
                                        CAD                                                    
 N/A                                                         | 
                                Body Material N/A Alloy 400 | Inlet Type N/A FNPT | Inlet Size N/A 1/4 in | Outlet Type N/A FNPT | Outlet Size N/A 1/4 in | Cv N/A 0.85 | Orifice N/A 0.25 in6.4 mm | Stem Type N/A Shutoff, Vee | SSP P/N N/A LN6K-4PF-M | Packing Material N/A PTFE | Stem Material N/A Chrome-Plated Alloy 400 | Production Category N/A 3 | Product Descriptions N/A Female NPT Needle Valve | Description Text N/A Locked Bonnet Needle Valves | 
| LN6K-6PF-M | 
                                    
                                        CAD                                                    
 N/A                                                         | 
                                Body Material N/A Alloy 400 | Inlet Type N/A FNPT | Inlet Size N/A 3/8 in | Outlet Type N/A FNPT | Outlet Size N/A 3/8 in | Cv N/A 0.85 | Orifice N/A 0.25 in6.4 mm | Stem Type N/A Shutoff, PTFE | SSP P/N N/A LN6K-6PF-M | Packing Material N/A PTFE | Stem Material N/A Chrome-Plated Alloy 400 | Production Category N/A 3 | Product Descriptions N/A Female NPT Needle Valve | Description Text N/A Locked Bonnet Needle Valves | 
| LN6K-D6-M | 
                                    
                                        CAD                                                    
 N/A                                                         | 
                                Body Material N/A Alloy 400 | Inlet Type N/A Duolok Tube Fitting | Inlet Size N/A 3/8 in | Outlet Type N/A Duolok Tube Fitting | Outlet Size N/A 3/8 in | Cv N/A 0.85 | Orifice N/A 0.25 in6.4 mm | Stem Type N/A Shutoff, PTFE | SSP P/N N/A LN6K-D6-M | Packing Material N/A PTFE | Stem Material N/A Chrome-Plated Alloy 400 | Production Category N/A 3 | Product Descriptions N/A Duolok Tube End Needle Valve | Description Text N/A Locked Bonnet Needle Valves | 
| LN6K-D8-M | 
                                    
                                        CAD                                                    
 N/A                                                         | 
                                Body Material N/A Alloy 400 | Inlet Type N/A Duolok Tube Fitting | Inlet Size N/A 1/2 in | Outlet Type N/A Duolok Tube Fitting | Outlet Size N/A 1/2 in | Cv N/A 0.85 | Orifice N/A 0.25 in6.4 mm | Stem Type N/A Shutoff, PTFE | SSP P/N N/A LN6K-D8-M | Packing Material N/A PTFE | Stem Material N/A Chrome-Plated Alloy 400 | Production Category N/A 3 | Product Descriptions N/A Duolok Tube End Needle Valve | Description Text N/A Locked Bonnet Needle Valves | 
| LN6M-4PF-M | 
                                    
                                        CAD                                                    
 N/A                                                         | 
                                Body Material N/A Alloy 400 | Inlet Type N/A FNPT | Inlet Size N/A 1/4 in | Outlet Type N/A FNPT | Outlet Size N/A 1/4 in | Cv N/A 0.78 | Orifice N/A 0.25 in6.4 mm | Stem Type N/A Metering | SSP P/N N/A LN6M-4PF-M | Packing Material N/A PTFE | Stem Material N/A Chrome-Plated Alloy 400 | Production Category N/A 3 | Product Descriptions N/A Female NPT Needle Valve | Description Text N/A Locked Bonnet Needle Valves | 
| LN6M-6PF-M | 
                                    
                                        CAD                                                    
 N/A                                                         | 
                                Body Material N/A Alloy 400 | Inlet Type N/A FNPT | Inlet Size N/A 3/8 in | Outlet Type N/A FNPT | Outlet Size N/A 3/8 in | Cv N/A 0.78 | Orifice N/A 0.25 in6.4 mm | Stem Type N/A Metering | SSP P/N N/A LN6M-6PF-M | Packing Material N/A PTFE | Stem Material N/A Chrome-Plated Alloy 400 | Production Category N/A 3 | Product Descriptions N/A Female NPT Needle Valve | Description Text N/A Locked Bonnet Needle Valves | 
| LN6M-D6-M | 
                                    
                                        CAD                                                    
 N/A                                                         | 
                                Body Material N/A Alloy 400 | Inlet Type N/A Duolok Tube Fitting | Inlet Size N/A 3/8 in | Outlet Type N/A Duolok Tube Fitting | Outlet Size N/A 3/8 in | Cv N/A 0.78 | Orifice N/A 0.25 in6.4 mm | Stem Type N/A Metering | SSP P/N N/A LN6M-D6-M | Packing Material N/A PTFE | Stem Material N/A Chrome-Plated Alloy 400 | Production Category N/A 3 | Product Descriptions N/A Duolok Tube End Needle Valve | Description Text N/A Locked Bonnet Needle Valves | 
| LN6M-D8-M | 
                                    
                                        CAD                                                    
 N/A                                                         | 
                                Body Material N/A Alloy 400 | Inlet Type N/A Duolok Tube Fitting | Inlet Size N/A 1/2 in | Outlet Type N/A Duolok Tube Fitting | Outlet Size N/A 1/2 in | Cv N/A 0.78 | Orifice N/A 0.25 in6.4 mm | Stem Type N/A Metering | SSP P/N N/A LN6M-D8-M | Packing Material N/A PTFE | Stem Material N/A Chrome-Plated Alloy 400 | Production Category N/A 3 | Product Descriptions N/A Duolok Tube End Needle Valve | Description Text N/A Locked Bonnet Needle Valves | 
| LN6R-4PF-M | 
                                    
                                        CAD                                                    
 N/A                                                         | 
                                Body Material N/A Alloy 400 | Inlet Type N/A FNPT | Inlet Size N/A 1/4 in | Outlet Type N/A FNPT | Outlet Size N/A 1/4 in | Cv N/A 0.79 | Orifice N/A 0.25 in6.4 mm | Stem Type N/A Regulating | SSP P/N N/A LN6R-4PF-M | Packing Material N/A PTFE | Stem Material N/A Chrome-Plated Alloy 400 | Production Category N/A 3 | Product Descriptions N/A Female NPT Needle Valve | Description Text N/A Locked Bonnet Needle Valves | 
| LN6R-6PF-M | 
                                    
                                        CAD                                                    
 N/A                                                         | 
                                Body Material N/A Alloy 400 | Inlet Type N/A FNPT | Inlet Size N/A 3/8 in | Outlet Type N/A FNPT | Outlet Size N/A 3/8 in | Cv N/A 0.79 | Orifice N/A 0.25 in6.4 mm | Stem Type N/A Regulating | SSP P/N N/A LN6R-6PF-M | Packing Material N/A PTFE | Stem Material N/A Chrome-Plated Alloy 400 | Production Category N/A 3 | Product Descriptions N/A Female NPT Needle Valve | Description Text N/A Locked Bonnet Needle Valves | 
                        
                                            