You're here: Electrical & electronic components > Electronic filter > EMI/RFI shields > Airfilters with dustfield
Airfilters with dustfield
Our VF Series of RFI vents combine the benefits of an attenuation vent panel with the properties of a dustfilter in a single frame, unlike the VB Series which utilises separate units fixed together in-situ.Standard frame styles are AF1 to AF4 and they incorporate a triple layer of woven and corrugated aluminium mesh. Each layer has a slightly different degree of corrugation and so provides separation and increased airflow potential. To enable it to perform its dual function the VF filter material is relatively dense and so requires an assisted airflow to operate correctly. A 'kickplate' is built into the unit to protect the filter from damage.
VF dustfilters are mounted in the same manner as the VH series and are used in industrial or military environments where a 'heavy duty' attenuating dustfilter is required and the lighter weight de-membraned polyurethene VB Series is not suitable. They are not designed for pure convection and need a driven airflow. They may be solvent cleaned after removal but particular attention should be paid to the replacement of gaskets which could be affected by compression-set or hydrocarbon/solvent contamination.
Manufacturer/supplier's information
| Company name: | P & P Technology Ltd [ Homepage ] | |
| Business address: | Finch Drive Springwood Braintree Essex United Kingdom |
|
| Zip/postal code: | CM7 2SF | |
| Telephone number: | 01376 550525 | |
| Fax number: | 01376 552389 | |
| Contact name: | Gerry Steel [ Email ] |
Product groups: EMI shields RFI
Other products from this member

Fully laminated windows
Fully laminated screened windows combine the physical strength and optical clarity of laminated glass or plastic with the shielding effectiveness of fine wire gauze.

Edge bonded shielded windows
A low cost range of windows offering the same high level of EMI shielding performace as our range of fully laminated windows (WF Series) but with edge lamination only.

Connector Gaskets
P & P Technology manufacture a wide range of connector gaskets, including precision diecut gaskets made from a selection of materials, both conductive and non-conductive. Gaskets can be tailor made to meet individual requirements.

Vent/filter composites
P & P Technology's VB Series of EMC vents / filter assemblies are composites of the VH Series honeycomb attenuation vents and demountable dustfilter panels containing a demembraned polyurethene filter media.

Aluweave - versatile gaskets
Aluweave is a versatile, highly conductive gasket medium produced by filling a woven aluminium mesh with either silicone, flurosilicone or neoprene rubber. It is particularly useful where thicker gaskets are unsuitable but, because it is woven, it is unsuitable for 'landwidths' of less than 3mm for diecut gaskets. Surface irregularities should not exceed 0.05mm.

Twinstrip knitted or cored mesh gaskets
Twinstrip is a combination of knitted or cored mesh gasket with a non-conductive environmental seal. The wire mesh types used are Monel, Aluminium, TCS and Stainless Steel and the permutations of wire and elastomer combinations are almost endless providing a wide range of environmental, water, dust and pressure seals.

Conductive silicone
Our E Range gaskets are constructed from silicone containing metal powder fillers which combine to produce high levels of attenuation with excellent environmental shielding and a high level of conductivity.

Monex - expanded monel foil
Monex is expanded Monel foil filled with silicone rubber. The exposed foil surface provides excellent conductivity combined with good corrosion resistance. Monex is also 'thin' gasket medium, similar to Aluweave, and is particularly suitable for connector or waveguide gaskets where a pressure seal and EMI shield is required.

Knitted mesh with carrier
Our KM series gasket strip and frame materials consist of a slotted aluminium extrusion carrier into which a solid or elastomer cored knitted mesh gasket is clamped. These ready-to-fit, semi-rigid gasketing profiles help to avoid the problems often encountered when fitting adhesive-backed or plain mesh gaskets.

Conductive adhesive
The one-part conductive particle filled room temperature curing silicone rubber adhesives is available using standard silicone and flurosilicone base compounds combined with a selection of particle fillers to produce a readily extrudable paste which self-cures when exposed to atmospheric moisture.

Shielded windows
Fully laminated (WF Series) screened windows combine the physical strength and optical clarity of laminated glass or plastic with the shielding effectiveness of fine wire gauze.

Elastomer-cored knitted wire meshes
P & P Technology's KE Series elastomer-cored knitted wire meshes consist of two layers of knitted wire over a low-closing-force rubber or elastomer core and offer the same shielding effectiveness of all-mesh types.

Attenuation vents
P & P Technology's VH Series of lightweight aluminium honeycomb attenuatung ventilation panels comprise of forms of conductive airflow media retained within an aluminium extrusion. They are designed for use in racks and other forms of commercial enclosure.

Silshield - Oriented wires in silicone
Our S Range silicone rubbers combine excellent environmental protection with a high level of shielding effectiveness. These products incorporate a matrix of vertically oriented wires which pierce both flat faces of the elastomer and provide around 100 contact points per square centimetre.

High performance RFI vents & filter composites
P & P Technology's VP Series of honeycomb ventilation panels can be custom manufactured from steel, brass or stainless steel. When selecting the material, corrosion resistance relevant to the application environment should be considered along with the attenuation requirements.
Other products at Electrical & electronic components > Electronic filter > EMI/RFI shields

Twinstrip knitted or cored mesh gaskets
Twinstrip is a combination of knitted or cored mesh gasket with a non-conductive environmental seal. The wire mesh types used are Monel, Aluminium, TCS and Stainless Steel and the permutations of wire and elastomer combinations are almost endless providing a wide range of environmental, water, dust and pressure seals.

Shielded windows
Fully laminated (WF Series) screened windows combine the physical strength and optical clarity of laminated glass or plastic with the shielding effectiveness of fine wire gauze.

Knitted mesh with carrier
Our KM series gasket strip and frame materials consist of a slotted aluminium extrusion carrier into which a solid or elastomer cored knitted mesh gasket is clamped. These ready-to-fit, semi-rigid gasketing profiles help to avoid the problems often encountered when fitting adhesive-backed or plain mesh gaskets.

Silshield - Oriented wires in silicone
Our S Range silicone rubbers combine excellent environmental protection with a high level of shielding effectiveness. These products incorporate a matrix of vertically oriented wires which pierce both flat faces of the elastomer and provide around 100 contact points per square centimetre.

Vent/filter composites
P & P Technology's VB Series of EMC vents / filter assemblies are composites of the VH Series honeycomb attenuation vents and demountable dustfilter panels containing a demembraned polyurethene filter media.

Our partner