Flat perforated and mesh-lined start-up strainers with defined active area, support plate, gasket land and identification tab. Installation and pressure-drop checks.
Perforated metal screensShare a drawing, reference sample or application requirements to discuss the configuration.
Flat startup strainers — Construction illustration
A flat start-up screen places its active surface across the pipe bore. The mounting ring, sealing land and any cross-support occupy part of the projected area; the free perforated area is calculated after those regions are deducted. Plate thickness and unsupported span define the mechanical geometry, while hole diameter, pitch and an added mesh liner define the screening surface.
The flange drawing fixes outside diameter, bore, plate thickness and gasket contact width. A projecting tab identifies the installed screen and provides handling access. The flow arrow locates the support plate relative to the finer mesh so the pressure load reaches the support. Inspection covers flatness, burr-free holes, perimeter attachment and gasket seating; differential pressure is monitored throughout start-up flushing.
| Feature | Drawing and operating definition |
|---|---|
| Active surface | Clear diameter, hole pattern and support obstruction |
| Plate and ring | Thickness, unsupported span, outside diameter and bore |
| Sealing and handling | Gasket land, tab, bolt clearance and removal route |
| Layer orientation | Fine mesh, support plate and marked flow direction |
| Hole diameter (in) | Hole diameter (mm) |
|---|---|
| 1/16 | 1.5875 |
| 1/8 | 3.175 |
| 1/4 | 6.35 |
| 1/2 | 12.7 |
Round support-hole sizes are stated in inches with exact millimetre conversions using 1 in = 25.4 mm. Hole pitch, sheet thickness and solid mounting lands complete the support geometry. The optional woven liner has its own mesh and wire specification.
| Supply item | Order basis |
|---|---|
| Production lead time | 2–3 weeks after order and drawing confirmation. |
| Trial orders | Small trial quantities for fit and process evaluation. |
| Regular production orders | 50 pieces or US$3,000 per order. |
| Quotation basis | Material, finished dimensions, filter construction, connections and quantity. |
| Parameter | Specification | Notes |
|---|---|---|
| Active surface | Clear diameter, hole pattern and support obstruction | — |
| Plate and ring | Thickness, unsupported span, outside diameter and bore | — |
| Sealing and handling | Gasket land, tab, bolt clearance and removal route | — |
| Layer orientation | Fine mesh, support plate and marked flow direction | — |
| Material | 304 / 316L stainless steel | — |
| Perforated support openings | 1/16 / 1/8 / 1/4 / 1/2 in | Round support-hole sizes are stated in inches with exact millimetre conversions using 1 in = 25.4 mm. Hole pitch, sheet thickness and solid mounting lands complete the support geometry. The optional woven liner has its own mesh and wire specification. |
| Illustrated geometry | DN100 line; plate thickness 10 mm | Geometry of the illustrated construction; finished dimensions follow the equipment interface drawing. |
| Mesh-liner geometry shown | 20 mesh; wire Ø0.25; clear opening 1.02 mm | For square weave:25.4/20−0.25=1.02 mm. |
The screen captures construction debris during flushing and is removed after commissioning.
The upstream screen intercepts debris before it reaches the pump inlet.
The flange drawing fixes outside diameter, bore, plate thickness and gasket contact width. A projecting tab identifies the installed screen and provides handling access. The flow arrow locates the support plate relative to the finer mesh so the pressure load reaches the support. Inspection covers flatness, burr-free holes, perimeter attachment and gasket seating; differential pressure is monitored throughout start-up flushing.
A flat start-up screen places its active surface across the pipe bore. The mounting ring, sealing land and any cross-support occupy part of the projected area; the free perforated area is calculated after those regions are deducted. Plate thickness and unsupported span define the mechanical geometry, while hole diameter, pitch and an added mesh liner define the screening surface.
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Define the dimensions, media, joints and inspection records before confirming the order.
