For y-strainer screens, Y-strainer OEM replacement defines the specification designations and tolerances. The sections below describe the scope, the properties it leaves to companion standards, and the equivalent designations across standards bodies.
Y-strainer OEM replacement — Scope
Y-strainer OEM replacement specifies the designation system, dimensions and tolerances of y-strainer screens — mesh count or nominal opening, wire diameter and the permissible aperture deviations. Alloy chemistry, mechanical testing and delivery condition are governed by separate documents in the same standards family.
Tolerance Classes
Y-strainer OEM replacement defines tolerance limits on the average aperture and on the maximum single aperture, tightening as the aperture gets finer. For test-sieve duty the tighter ISO 3310-1 tolerances apply instead of the general cloth tolerances — specify sieve grade explicitly if the mesh will be used for particle-size analysis.
Specifications Defined by Y-strainer OEM replacement
| Nominal pipe size | Screen mesh | Material | Style | Reference standard |
|---|---|---|---|---|
| DN15 (1/2 in) | 20-Mesh | SS304 / SS316 | Cylindrical insert | Y-strainer replacement |
| DN25 (1 in) | 20-Mesh / 40-Mesh | SS304 / SS316 | Cylindrical insert | Y-strainer replacement |
| DN50 (2 in) | 20-Mesh / 40-Mesh | SS304 / SS316 | Cylindrical insert | Y-strainer replacement |
| DN80 (3 in) | 20-Mesh / 40-Mesh | SS304 / SS316 | Cylindrical insert | Y-strainer replacement |
| DN100 (4 in) | 10-Mesh to 40-Mesh | SS304 / SS316 | Cylindrical insert | Y-strainer replacement |
Companion Standards
Y-strainer OEM replacement controls the geometry of y-strainer screens. Companions frequently cited alongside it: ISO 565 / ASTM E11 (test-sieve aperture series), ISO 3310-1 (test sieves of metal wire cloth), ISO 4783 (selection of wire and aperture combinations), ISO 9044 (industrial woven wire cloth), and ISO 2941 (collapse/burst rating for finished filter elements).
When to Specify Y-strainer OEM replacement
Choose Y-strainer OEM replacement for international procurement and OEM supply where ISO documents are the contractual reference. It is the default modern specification for y-strainer screens.
Specifying Y-Strainer Screens Beyond the Standard
- Body size & make: Screen OD and length must match the Y-strainer body exactly.
- Perforation & mesh: Perforated screen, with a mesh liner (20–100 mesh) for finer straining.
- Material: SS304 or SS316 for most fluids; Monel for sea water.
When Y-Strainer Screens Is Not the Right Choice
Not a fine filter; for micron ratings use a cartridge filter downstream.
