Check Valve, High Flow In-Line, Inlet (In.) 1-1/2 (F)NPT, Outlet (In.) 1-1/2 (F)NPT, Brass, Max. Pressure (PSI) 500, Cracking Pressure (PSI) 1, Hex Size (In.) 2.125, Flow Range Free Air (CFM) 90, Max. Temp. (F) 450, Horizontal or Vertical Mounting, Tap Size 1-1/2 In., Length (In.) 4-1/2, Stainless Steel Spring Material, 15 In. Glass Filled PTFE Poppet, Brass Seal, Pneumatic Control
- Valves open at less than 1 psi with max. operating pressure of 400 psi. All-brass bodies with filled PTFE poppets and stainless steel springs. 4X828 and 4X829 have 1/8" (F)NPT tapped port for pressure switch unloader connection.