Differential pressure flow regulator HLF-1 series

for gascompactmanual

Product features

• Compact size, low weight and portable
• Flow can be finely adjusted or set to a constant flow per customer specification
• Repeated gas refilling possible

Operating instructions

• The flow of the HLF-1 series can be adjusted
• The outlet valve is a flow control valve, while the inlet valve is a shut-off valve
• Both valves close when turned clockwise and open when turned counterclockwise
• Set the flow control handle to the closed position, then connect and secure the valve to the gas cylinder to prevent leaks at connected parts
• Open the inlet shut-off valve first, then open the flow control valve and adjust to the required flow
• Note: Before closing the shut-off valve, reduce the flow to a small amount
• Do not overtighten the flow control valve to avoid damage to the valve stem and impaired flow regulation

Overall dimensions
Overall dimensions are shown on the product page for types HLF-1B and HLF-1 (diagrams with dimensions).

Model selection descriptions
Model selection descriptions and selection graphics are provided on the product page to explain available variants.

Technical specifications

• Series: HLF-1 (including HLF-1B)
• Mounting: To be mounted on the gas cylinder
• Function: Outlet valve = flow control valve; Inlet valve = shut-off valve
• Operating direction: Close clockwise, open counterclockwise
• Features: compact, lightweight, portable; adjustable or customer-specified constant flow; repeated gas refilling possible
• Operation note: Before closing the shut-off valve, reduce the flow to a small amount; do not overtighten the flow control valve