
The SPF Series Flow Control Valves meter flow of air or oil in one direction and allow free flow in the reverse direction. SPF Series valves are manufactured with a two step needle. Fine metering is accomplished over the initial adjustment turns and nominal metering is provided over the remaining turns. Once the desired flow is selected, a set screw can be tightened to maintain the setting. These valves are available with NPTF ports in 1/8", 1/4", 3/8" and 1/2" sizes.
Valve Specifications:
• Maximum Operating Pressure:  2000 PSI Non-Shock
• Operating Temperature: 0° to 140°F
Component Materials:
• Body Material:  Brass
• Needle:  Stainless Steel
• Poppet:  Stainless Steel
• Poppet Style:  Soft Seal Standard
• Check Retainer:  Stainless Steel
• Seals:  Nitrile (Standard). Fluorocarbon (Optional)
• Knob: Steel with Zinc Plating
• Spring:  Stainless Steel
            
            
                            Item # | 
                        
                            (A) Inch - Port Size | 
                        
                            (B) Inch | 
                        
                            (C) Inch | 
                        
                            (D) Inch | 
                        
                            (E) Inch | 
                        
                            (F) Inch | 
                        
                            Flow SCFM at 100 PSIG Inlet | 
                        
                            Cv | 
                        
                            Effective Area Sq. In. | 
                                                        
|---|---|---|---|---|---|---|---|---|---|
| SPF200B | N/A 1/8-27 NPTF | N/A 1.54 | N/A 2.00 | N/A 0.63 | N/A 1.28 | N/A 0.75 | N/A 25.4 | N/A 0.53 | N/A 0.018 | 
| SPF400B | N/A 1/4-18 NPTF | N/A 1.79 | N/A 2.63 | N/A 0.81 | N/A 1.66 | N/A 0.81 | N/A 55.2 | N/A 1.56 | N/A 0.038 | 
| SPF600B | N/A 3/8-18 NPTF | N/A 2.18 | N/A 2.75 | N/A 1.00 | N/A 1.75 | N/A 1.00 | N/A 99.3 | N/A 2.27 | N/A 0.070 | 
| SPF800B | N/A 1/2-14 NPTF | N/A 2.70 | N/A 3.44 | N/A 1.25 | N/A 2.23 | N/A 1.19 | N/A 138.0 | N/A 5.11 | N/A 0.096 |