Important Definitions For Sieving Meshes
Warp/Weft
The longitudinal direction of a mesh wire is the warp, the transverse direction is the weft. Only stainless steel wires are used, which meet the most challenging requirements in terms of diameter tolerances, yield strength and wire surface.
Aperture (W),
Wire Diameter (D)
Square woven wire stainless steel filter meshes are defined by aperture and wire diameter. The aperture (w) describes the distance between two warp or weft wires. The wire diameter (d) describes the thickness of the wire before weaving. This measurement may alter slightly during the weaving process.
Mesh Count
The mesh count describes the number of apertures per imperial inch and is calculated as follows:
Mesh Open Area (Ao)
Mesh open area’ describes the total of all apertures as a percentage of the mesh surface.
Materials
Our main material is stainless steel to DIN 1.4301 (AISI 304) or DIN 1.4401 (AIS 316). Other specifications are available in chrome steel to DIN 1.4016 (AISI 430).
Nutsche plates repair / replace
Hall Pyke offers a specialist service for:
Supply of new filter plates to individual customer specifications.
- Re-meshing of existing filter plates
- Range of designs to suit different applications/environments
- Extensive selection of filter cloths in all types and weaves available ex-stock
Fast turnaround remeshing service includes collection from and delivery to customer premises using our own specialist transport.
Hall Pyke offer a repair service for Nutsche filters used predominantly in the chemical and pharmaceutical industries.
Nutsche Filters perform a range of demanding tasks in these industries, and downtime for repairs can be costly in terms of both materials and lost production.
Hall Pyke provide an expert repair facility, designed to ensure the equipment is up and running to specification quickly and reliably.
All repairs are carried out using precision, high quality sintered materials produced in Switzerland by our supplier G Bopp & Co AG.
Screen Re-Meshing
Hall Pyke tension bonding service is one of the best in the market today offering full traceability on all parts used. Using G.Bopp a Swiss wire weavers st/steel woven mesh we can offer three mesh options ISO9044, ISO3310 or Bopp SI quality mesh. Bopp SI standard is one of the highest in the world and in conjunction with our adhesives to ISO10933 our service and traceability is second to none.
Hall Pyke also offers a bespoke frame and mesh fabrication service.