Product Description
The Festo H, HA, and HB series are screw-in check valves featuring a non-return function that allows compressed air to flow freely in one direction while blocking reverse flow . Suitable for screw-in or in-line installation with connecting threads at both ends, push-in connectors at both ends, or thread/push-in connector combinations, these valves provide reliable backflow prevention for pneumatic systems .
Key Features & Advantages:
Non-Return Function for Reliable Backflow Prevention: Ensures consistent flow direction by allowing compressed air to pass freely in one direction while completely blocking flow in the reverse direction, preventing system malfunctions and pressure loss .
Flexible Installation Options: Supports screw-in or in-line installation with three connection configurations: connecting threads at both ends, push-in connectors at both ends, or thread/push-in connector combinations for versatile system integration .
Robust Anodized Aluminium Construction: Features anodized wrought aluminium housing with NBR seals, providing corrosion resistance class CRC 2 (moderate corrosion stress) and durability for demanding industrial environments .
Wide Operating Pressure Range: Operates reliably at pressures from 0.4 bar to 12 bar (H-1/4-B: 0.4 - 12 bar; H12B: 0.4 - 10 bar; H-1/2-B: 0.4 - 12 bar) with ambient and medium temperatures from -10°C to +60°C .
Compact Design with High Flow Performance: Compact construction saves installation space while maintaining excellent flow rates, ranging from 115 L/min up to 5,500 L/min depending on port size and model variant .
Technical Specifications:
Brand: Festo
Model Series: H / HA / HB
Product No. (Example): H-1/4-B (11689)
Valve Function: Non-return function (check valve / one-way valve)
Operating Pressure: 0.4 – 12 bar
Cracking Pressure: 0.4 bar (typical)
Port Sizes Available: M5, G1/8, G1/4, G3/8, G1/2, G3/4
Push-in Sizes Available: 2, 4, 6, 8, 10, 12 mm
Design: Poppet valve with mechanical spring return
Mounting Type: Screw-in or in-line
Housing Material: Anodized wrought aluminium alloy
Seal Material: NBR
Corrosion Resistance Class: CRC 2 – Moderate corrosion stress
Ambient Temperature: -10°C to +60°C
Medium Temperature: -10°C to +60°C
Flow Direction: 1 → 2 (free flow), 2 → 1 (blocked)
Operating Medium: Compressed air to ISO 8573-1:2010 [7:4:4]
Lubrication: Oiled operation possible (must be continued thereafter)
Certifications: RoHS compliant, LABS (PWIS) conformity VDMA24364-B2-L
Ideal For:
Pneumatic system backflow prevention, cylinder speed control circuits, pressure maintenance applications, vacuum system protection, air preparation units, and industrial automation systems requiring reliable one-way flow control.
Why Choose FESTO H / HA / HB?
Choose the Festo H, HA, and HB check valves for their reliable non-return function, flexible screw-in or in-line installation options, robust anodized aluminium construction, and wide port size range up to G3/4.
Tags:
#Festo #H #HA #HB #CheckValve #NonReturnValve #ScrewInValve #PneumaticValve #MalaysiaSupplier
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