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Bleed & Purge Valves

Bleed & Purge Valves

Hy-Lok USA, Inc. bleed valves can be used on instrument fluid handling products, such as manifolds or gauge/root valves, in order to vent signal line pressure to atmosphere before disassembling of an instrument or to facilitate in calibration of control devices. End connection options include male NPT and SAE from 1/8" to 1/2".

Bleed valves are available in stainless steel, carbon steel, and alloy 400.

Hy-Lok purge valves are designed to manually bleed, vent or drain. The knurled cap is not separable from the valve body for safety. A simple quarter (1/4) turn from finger tight gives leak-free closure. Proper tightening with a wrench secures closure to the desired pressure rate with sufficient make-ups. Purge valve end connection options include female / male NPT, Hy-Lok and Hy-Lok tube stub from 1/8" to 1/2".

Purge valves are available in stainless steel, carbon steel, brass. Both bleed and purge valves are tested with nitrogen at 1000 psi(69 bar) to a max leak rate of 0.1 SCCM.

Contact your Hy-Lok fluid system solutions expert today to learn more or locate a distributor.

  
Bleed Valves

Bleed Valves

  • Pressure rating to 10,000 psi (689 bar) at 100°F (38°C).
  • Temperature rating from -65°F to 850°F (-54°C to 454°C) with stainless steel, from -20°F to 450°F (-29°C to 232°C) with carbon steel, and from -65°F to 500°F (-54°C to 260°C) with alloy 400.
  • Back stop screw prevents accidental removal of stem.
  • Stem thread and tips are chrome-plated for maximum service life.
  • Size range from 1/8" to 1/2" tubing and pipe.
  • Variety of end connections include Hy-Lok tube fittings, male/female NPT and ISO threads.
  • Body Material is standard in 316 stainless steel.

View Bleed Valve Catalog

Purge Valves

Purge Valves

  • Pressure rating to 4,000 psi (275 bar) for stainless steel, and up to 3,000 psi (206 bar) for carbon steel and brass at 100°F (38°C).
  • Temperature rating from -65°F to 600°F (-54°C to 315°C) with stainless steel, from -65°F to 400°F (-54°C to 204°C) with carbon steel, and from -20°F to 350°F (-29°C to 177°C) with brass.
  • Vent hole bleeds excessive liquid or gas from system lines.
  • Knurled cap is crimped to valve body to prevent accidental removal.
  • Size range from 1/8" to 1/2" tubing and pipe.
  • Variety of end connections include Hy-Lok tube fittings, male/female NPT and ISO threads.
  • Body Material is available in 316 stainless steel, carbon steel and brass.

View Purge Valve Catalog

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