Designed to dispense viscous materials fed from cartridges or pumps. The 790HP-LF is a spool design for a fast ON/OFF dispensing action unaffected by material input pressure, and is ideal for material with a viscosity between 5000 to 3,000,000 CPS at pressures of up to 2,500 psi.
The hardened spool slides in PTFE seals and displaces a portion of the material back into the nozzle during shut off, creating an accurate suck-back anti-drip action. An oil chamber creates an additional liquid seal that prevents inadvertent moisture from entering the spool mechanism.
The valve is opened by applying air pressure and closed via a return spring (single acting). A port is provided so that the valve may be connected for air closing without the spring (double acting).
All valves are shipped with a luer lock fluid elbow fitting, airline hose with male quick connect, mounting attachment, tip cap end seal, selection of dispensing tips and user guide. Valves are supplied with a 1 Year warranty.
Do not use this valve for reactive adhesives and fluids such as Cyanoacrylates or other low viscosity liquids. For high viscosity materials only.
Part ID: 790HP-LF
Materials: Aluminium, Teflon
Length: 4.70" (119mm)
Diameter: 1.50" (38mm)
Weight: 1.16lb (726g)
Viscosity Range: 5,000 to 3 Million CPS
Repeatability: +/- 1.28%
Cycle Rate: Up to 500 cycles/ minute
Flow Rate (water): 39,000 ml / minute @ 100 psi
Min Shot Size: 0.14 cc / ml
Max Fluid Pressure: 2500 psi (172.4 bar)
Activation Pressure: 70 psi (4.8 bar) minimum
Material Inlet: 1/4"
Material Outlet: 1/4"
Mounting: 1.5" (38mm) diameter
Adhesive Dispensing Ltd provide a wide range of equipment options for dispensing almost all assembly fluids - from watery liquids, solvents, primers and activators through to thick pastes, sealants, silicones, gels and epoxies.
- 790HPNM-LF: Aluminum Valve Body Aluminum material: inlet & outlet blocks
- Material inlet: 1/4 npt
- Air inlet (actuating): 1/4 npt
- Air pressure required: 50 psi minimum
- Material outlet: 1/4 npt
- Maximum input pressure: 2500 psi
- Seals: O-ring - Fluorocarbon Rubber, seats are glass filled teflon
Typical materials dispensed from these valves include sealants, silicones, mastics, RTVs, pastes, gels, lubricants, flavourings, UV cure gels, fluxes, solder masks and greases.
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