Models 19, 19M, 20, 20M, 20MP, 200A, 200H Non-code Bronze Liquid Relief Valves

Description

Model Descriptions

  • Model 19: All bronze, equipped with handwheel for easy adjustment.
  • Model 19M: Same as Model 19 except SS trim (seat and disc). (Available 2 1/2-inch and 3-inch only). For higher pressure settings or severe applications.
  • Model 20: All bronze, with pressure-tight cap. Suitable for maximum back pressure of 50 psig.
  • Model 20M: Same as Model 20 except SS trim (available in 2 1/2-inch and 3-inch only)(seat and disc). For higher pressure settings or severe applications. Maximum back pressure of 50 psig.
  • Model 20P: Same as Model 20 except with packed lift lever. Suitable for maximum back pressure of 50 psig.
  • Model 20MP: Same as Model 20M except with packed lift lever. Maximum back pressure of 50 psig.
  • Model 200A: Special non-chattering design. Recommended for light oils and continuous bypass or pressure regulation. UL listed for light oil service. Available 3/4-inch through 1 1/2-inch sizes. Female NPT connections only.
  • Model 200H: Same as Model 20. UL listed for use with fuel oils. Available 3/4-inch through 2-inch sizes.
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    Pressure and Temperature Limits
    • Model 19, 20: 1 to 300 psig -60° to 406°F
    • Models 19M, 20M: 1 to 500 psig -60° to 406°F
    • Models 200A, 200H: 10 to 200 psig -60° to 406°F
    Applications
    • Non-Code liquid relief
    • Overpressure relief and protection of pumps, tanks, lines and hydraulic systems
    • Pressure regulation
    • Continuous bypass relief
    Options
    • Available with optional female NPT inlet or flanged inlet and outlet connections.
    • Male x Female NPT connections standard.
    • Female x Female connections available.
    Features and Benefits
    • Inlet and outlet connections integrally cast into body to permit easy inspection and servicing without disconnecting piping.
    • Lapped beveled seats for optimum performance.
    • Stainless Steel Spring for optimum corrosion resistance.
    • Optional Flange connections available