Temporary cone strainers
Conical commissioning strainer installed between pipe flanges.
Product detailsDrawing-based manufacturing
Cone strainers
Temporary conical and flat startup screens installed in pipelines to intercept construction debris before commissioning. Flange fit, installation length and differential-pressure monitoring are central to selection.
- Shapes
- Cone · truncated cone · flat startup screen
- Installation
- Between-flange or equipment-specific seat
- Duty
- Startup debris interception
Metal filtration componentsCone strainer configurations
Choose by flow geometry
Cone strainer configurations
Start with the line size, flange interface and available installation length, then define flow direction and screen support.
01
Witch-hat strainers
Pointed temporary strainers installed between flanges for equipment protection.
View matching products →02
Truncated cone strainers
Flat-ended conical screens where a full point is unnecessary or restricted.
View matching products →03
Basket cone strainers
Open-ended conical baskets designed around a removable pipeline insert.
View matching products →Cone strainers
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3 products
Flat startup strainers
Flat perforated plate or mesh-lined screen fitted at a flange joint.
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Flange fit, flow direction and startup loading
Pipeline class does not establish the allowable pressure drop across a screen.
Pipe/flange interface
Defines the mounting ring and fit
Cone dimensions and orientation
Controls available area and structural behavior
Aperture or mesh specification
Defines the debris retained
Flow and differential pressure
Guides support construction
Service duration and cleaning
Separates temporary from permanent duty
Construction
Flange fit, flow direction and startup loading
- Cone orientationPoint-upstream and point-downstream arrangements load the screen differently. Follow the piping design rather than treating them as interchangeable.
- Backing screenPerforated backing carries load while woven mesh captures smaller debris. Place the mesh on the side supported under the specified flow.
- Removal planDefine pressure monitoring, access and the removal procedure before startup. A flat insert fits shorter spaces but usually offers less screening area than a cone.
01Cone orientation
02Backing screen
03Removal plan
Compare cone strainers
Pipeline class does not establish the allowable pressure drop across a screen.
| Construction | Application and fit | Confirm first | Find a product |
|---|---|---|---|
| Witch-hat strainers | A temporary screen must project upstream or downstream between flanges. | Line size, cone length, flange OD, flow direction and support. | Filter matching products |
| Truncated cone strainers | Available length or handling favors a flat-ended cone. | Large and small diameters, length, flange and closed-end detail. | Filter matching products |
| Basket cone strainers | The pipeline arrangement uses a removable basket-like temporary insert. | Mouth, body length, closed end, removal feature and flow direction. | Filter matching products |
Cone strainers
Applications
For commissioning and intrusive pipework.
Pump protection
Intercept weld debris, scale and foreign material during flushing.
Auxiliary liquid circuits
Protect specified equipment circuits during initial circulation.
Plant turnaround
Control debris following pipe modifications.
Inspect the retaining ring and supported screen
The retaining edge transfers load into the pipeline joint.
01Ring fitMeasure thickness, bore and gasket contact geometry.
02AttachmentInspect the mesh, backing and retaining-edge joints.
03OrientationDocument flow direction and installed position.
Cone strainers
Technical resources
Technical guide
Strainer area, pressure drop and maintenance
Specify a basket or cone strainer from debris duty, available area and planned cleaning access.
Read guide→Technical guide
Perforated open area and structural support
Calculate theoretical opening area, then check ligaments, support spacing and installed coverage.
Read guide→Cone strainers
Questions before ordering
Can a temporary strainer be used permanently?
Only when the design provides sufficient area, pressure monitoring, cleaning access and structural assessment. Startup screens usually serve a defined commissioning period.
Does Class 150 specify the cone differential-pressure limit?
No. Flange pressure-temperature ratings apply to the piping joint. The thin screen and support require their own differential-pressure limit.
Which direction should a startup cone face?
Orientation depends on the piping specification, flow direction and debris collection plan. Mark the flow arrow on the drawing and check removal clearance and allowable pressure drop.
Related products and guidance
Technical enquiry
Define the dimensions, media, joints and inspection records before confirming the order.