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       Barksdale Control Products 公司介紹
                        		
        
      
        
      
           
        
      
        
      
          
                  
                		
        
      
        
      
          
        
      
        
      
          
      		
          
        
      
        
      
          
        
      
        
      
          
      		
          
        
      
        
      
          
        
      
        
      
          
      		
          
        
      
        
      
          
        
      
        
      
          
                  
                		
        
      
        
      
          
        
      
        
      
           
          
        
      
        
      
          
        
      
        
      
          
      		
          
        
      
        
      
          
        
      
        
      
           
          
        
      
        
      
          
        
      
        
      
          
                  
                		
        
      
        
      
          
        
      
        
      
          
      		
           
        
      
        
      
          
        
      
        
      
          
      		
          
        
      
        
      
          
        
      
        
      
           
          
        
      
        
      
          
        
      
        
      
          
                  
                		
        
      
        
      
          
        
      
        
      
           
          
        
      
        
      
          
        
      
        
      
          
        
      
        
      
          
        
      
        
      
           
          
        
      
        
      
          
        
      
        
      
           
          
        
      
        
      
          
        
      
        
      
           
          
        
      
        
      
          
        
      
        
      
           
          
        
      
        
      
          
        
      
        
      
           
        
      
        
      
          
      		
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      518, 526 Series Microtorque Valve 
      
        Directional control for fluid power applications up to 6,000 psi - compact design 
      
        Shear-Seal Manual Control Valve 
      
        
       
      
        
      Description 
      
        
      Barksdale's Microtorque  valve provides superior directional control for fluid power applications up to 6,000 psi where compact design and virtually zero leakage* are a must. Utilizing Barksdale's Shear-Seal technology, the Microtorque valve offers reliable performance and lapped metal-to-metal sealing surfaces that will easily tolerate contaminated fluids. This valve offers many options that make it extremely versatile including panel mounting, spring return, 2 or 3 position detents, DO3 manifold mounting, and non-interflow. Leveraging the flexibility and unique features of the Microtorque  valve, along with its superior performance, can result in bottom line savings and operational benefits for your customers. 
      
        
      
        
      518, 526 Series Microtorque Shear-Seal Manual Control Valve 
      
        Directional control for fluid power applications up to 6,000 psi - compact design 
      
        
       
      
        
      Features 
      
        
      
      
            
        
              
      • Original Shear-Seal ? technology 
        • 
                
      • Compact design 
        • 
                
      • Non-interflow option 
        • 
                
      • Spring return option 
        • 
                
      • Multiple handle types 
        • 
                
      • 2 or 3 position detent 
        • 
                
      • Panel mount option 
        • 
            
      
      
      
        
       
      
        
      Technical specifications 
      
        
      General Specifications* 
      
        
      
          
      
            Media: 
            Hydraulic oil 
          
      
          
      
            Working Pressure: 
            6,000 psi (415 bar) ** 
          
      
          
      
            Flow Capacity, Cv: 
            See table 
          
      
          
      
            Back Pressure: 
            Must not exceed 250 psi (17.2 bar)*** at return port for satisfactory operation 
          
      
          
      
            Proof Pressure: 
            1-1/2 times working pressure except at return port 
          
      
          
      
            Burst Pressure: 
            2-1/2 times working pressure except at return port 
          
      
          
      
            Media Temperature Range: 
            -40° to +250°F (-40° to +121°C) 
          
      
          
      
            Porting: 
            1/4” NPT, SAE for 1/4” tubing, or DO3 pattern for manifold mounting 
          
      
          
      
            Mounting: 
            Panel mountable with p/n 22357 mounting nut (-P option) DO3 Manifold mounting shipped with (4) #10-24 screws and O-Rings 
          
      
          
      
            Handle Rotation: 
            90°; 45° each side of center position 
          
      
          
      
            Detent: 
      
      2-position: 
      
      3-position:       		
            
      
      Detent at 90° positions 
      
      Detents at center and 2 extreme positions       		
          
      
          
      
            Optional Spring Return: 
            Available to center or either shifted position 5,000 psi (345 bar) max working pressure on spring return option 
          
      
          
      
            Body & Housing: 
            Anodized aluminum 
          
      
          
      
            Shaft, Rotor, Pressure Seals: 
            400 series stainless steel 
          
      
          
      
            Standard O-Rings: 
            Buna N, others available 
          
      
          
      
            Back-up Rings: 
            Tefl on 
          
      
          
      
            Bearings: 
            Hardened steel 
          
      
          
      
            Shipping Weight: 
            .95 lbs 
          
      
          
      
            * See product confi gurator for additional options. 
      
      ** Consult factory for pressure up to 10,000 psi (690 bar) 
      
      *** For requirements in excess of 250 psi (17.2 bar) at return port consult factory       		
          
      
        
      
        
      Flow Capacity Table 
      
        Flow Capacity (Approx.) 20 ft/sec 
      
    (6.1 m/s) 
      
    gpm (l/min) 40 ft/sec 
      
    (12.2 m/s) 
      
    gpm (l/min) Min. Flow 
      
    Passage Dia. Cv 
      
    Factor 
      
          
      
          
      
          
      
            518 Series Interflow 
            1.4 (5.6) 
            2.8 (11) 
            0.17 " 
            0.4 
          
      
          
      
            526 Series 
      
      Non-Interflow       		
            0.36 (1.4) 
            0.72 (2.7) 
            0.086 " 
            0.09 
          
      
        
      
        
       
      
        
       
      
        
      Applications 
      
        
      
          
        
            
      • Work holding clamps and systems 
        • 
              
      • Hydraulic presses and lifting systems 
        • 
              
      • Hydraulic test equipment 
        • 
              
      • Grease injection equipment 
        • 
              
      • Hydraulic power units 
        • 
          
      
        
      
        
      Need a part number? Configure this product... 
      
        
        
       
      
        
               
      
              		
    
      
    
    
      
      
      		
    
      
    
      
              
      
        
      
        Since 2007         
      		 
       
              

      
            
      
        美國DMK Engineering Solutions公司
      
信德邁科技(北京)有限公司 CNMEC Technology
      

      
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