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High Pressure Dispensing Valve
For High Viscosity Liquids
Silicones, RTVs, Greases, Sealants
- Suitable for very high viscosity fluids
- High pressure fluid input up to 2500psi
- Available in aluminum or stainless steel
- Suck-back eliminates post-dispense dripping
Description
The Fisnar IJF 790HPNM High Pressure Dispensing Valve is designed
to dispense high viscosity fluids such as silicones,
RTV, sealants, pastes
and greases. The 790HPNM high pressure valve provides a snap-release shut
off after dispensing, creating in a suck-back effect that prevents any dripping.
790 dispensing valve, controlled by a DSPE501A dispenser
| Specifications | |
| Construction | IJF 790HPNM Aluminum Valve Body IJF 790HPNMSS-LF Stainless Steel Valve Body Aluminum inlet & outlet blocks |
| Material inlet | 1/4" NPT |
| Air inlet (actuating) | 1/4" NPT |
| Material outlet | 1/4" NPT |
| Air pressure required | 50 psi minimum |
| Maximum input pressure | 2500 psi |
| Seals | O-ring - viton, seats are glass filled ptfe |
Operation
The 790 is a high pressure dispensing valve which is also known as a "spool valve". The material to be dispensed is supplied under pressure to the material inlet. The valve is opened and closed pneumatically, typically using a dispensing
controller. Applying a minimum of 50 psi to the air inlet will force the internal spool forward, dispensing the material. Releasing the air pressure allows an internal spring to snap the spool back, closing the valve. The spool shape helps to provide a suck back of the material, preventing drips and giving a clean cut-off of the dispense.
| Ordering information | ||
| Part number | Description | |
| IJF790HPNM | High pressure dispensing valve - aluminium body | |
| IJF790HPNMSS-LF | High pressure dispensing valve - stainless steel body | |
| IJFDSPE-501A-CE | Automatic liquid dispenser - recommended for controlling the valve | |
| IJF560064 | Tip adapter - allows the fitting on a luer lock dispensing needle or tip | |
| IJF580017NM | Service kit including replacement valve spool | |
| IJF580018NM | Service kit excluding replacement valve spool | |
Other Information
Our Technical Bulletins & Articles page has links to:
Improving Industrial Dispensing with Pneumatic Dispensing Valves - by Peter Swanson
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See also! The DSPE501A is our recommended dispenser for controlling dispensing valves This valve is recommended for dispensing silicones and RTVs Our complete range of luer lock dispensing needles and tips Pressure pots can be used to feed material to the valve
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November 2010
Version 1.0
INTERTRONICS
17 Station Field Industrial Estate, Banbury Road
KIDLINGTON, Oxfordshire, OX5 1JD, ENGLAND
Tel: +44 1865 842842 Fax: +44 1865 842172 info@intertronics.co.uk