790HP-LF High Volume Spool Dispensing Valve

790HP-LF High Volume Spool Dispensing Valves

The high-pressure 790HP-LF High Volume Spool Dispensing Valves are an economic solution when dispensing high viscosity materials such as silicones, RTV, sealant, and grease. The 790HP-LF provides a snap-release shut off after dispensing, resulting in a suck-back at the fluid outlet, preventing any drip or post extrusion.


3-Way & 4-Way Valve Operation

The 790HP-LF is a balanced type “on/off” segmented high-pressure spool valve. Applying a minimum of 50 psi to the air inlet will force the spool forward, under tension from an internal return spring, dispensing the material. Releasing the air pressure results in the internal spring snapping back into position and closing the valve.

790HP-LF valves can be used with a 3-way air valve controller DSP501N. Should the operation require automation, a faster closing action can be achieved using the 4-way valve controller VC1195N.

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790HP-LF: High-pressure valve aluminum
790HPSS-LF: High-pressure valve stainless steel


High-pressure fluid input up to 2500 psi
Suitable for very high viscosity fluids
Replaceable seals


Material input pressure Max. 2500psi (172.4 bar)
Air pressure required Min. 60psi (4.1 bar)
790HP-LF Valve Body Aluminum
790HPSS-LF Valve Body Stainless Steel
Operating air input 1/4" NPT
Material inlet 1/4" NPT
Material outlet 1/4" NPT
Seals O-ring - viton, seats are glass-filled Teflon


560671U High-Pressure Dispensing Valve Stand