Ball and poppet check valves

Process Control Equipment stocks a range of Hoke® 6100 and 6200 series ball and poppet check valve fluid control components, see the full list of features and specifications below:

Applications:

• Prevents reversed flow to protect solenoids, regulators, and pumps.
• Locks pressure in hydraulic cylinders.
• Low-pressure inline relief valve.
• Vent valve to purge a system.

Features and specifications

• Body material: 316 stainless steel, brass, Monel® R-405.
• Maximum operating pressure: Stainless steel – 6000 psig at 70 °F (414 bar at 21 °C). Brass – 3000 psig at 70 °F (414 bar at 21 °C). Monel® – 6000 psig at 70 °F (414 bar at 21 °C).
• Operating temperature range: Buna N – -40 °F to +200 °F (-40 °C to +93 °C). Viton® – 20 °F to +350 °F (-29 °C to +177 °C).
• Orifice sizes: 0.187” to 0.422” (4.75mm to 10.7mm).
• Cv factors: 0.3, 2.4.
• O-ring seat provides leak-tight shut-off.
• Internal design guides flow around or inside spring, not through coils, when valve is open.
• All models are tested in production to assure a leak-tight body joint and seat.
• Ball and poppet designs are available as standard.
• Ball type provides effective leak-tight closure minimum flow resistance.
• Poppet models provide large flows with a minimum of chatter and fluctuation.
• Valves are available with various cracking pressures, from 1⁄3 to 25 psig.
• 2-piece body permits interchangeability of end connections.
• Special High Tolerance NPT Thread.