900LB Large Size Temporary Strainer - SS316 / SS316L, Conical Basket Hat Type, 2 inch to 48 inch
Tengs Valve supplies high-quality 900LB Large Size Stainless Steel Temporary Strainers in SS316 / SS316L, available in Conical Type, Basket Type and Hat Type for start-up application. Designed and manufactured to ASME SEC VIII DIV.1, with pressure rating 900LB / PN150 / 15.0MPa (150 Bar). Sizes range from 2 inch to 48 inch (DN50 to DN1200). Perforated sheet (plate), spacer ring, handle and wire mesh are all in SS316 / SS316L. Perforated hole size from 1mm to 10mm; mesh size from 5 mesh to 200 mesh. Suitable medium includes gas, oil and water. Special design and large size are available; other sizes, materials and pressure ratings can be customized. Ideal for high-pressure start-up, large diameter pipeline flushing, refinery and petrochemical commissioning, power plant and offshore service.
900LB Temporary Strainer Specification
• Standards: ASME SEC VIII DIV.1
• Type of Temporary Strainer: Conical, Basket, Hat Type
• Sizes: 2 inch to 48 inch (DN50 to DN1200)
• Pressure Rating: 900LB / PN150 / 15.0MPa (150 Bar)
• Material:
• Perforated Sheet (Plate): SS316 / SS316L
• Spacer Ring and Handle: SS316 / SS316L
• Wire Mesh: SS316 / SS316L
• Perforated Hole Size: 1mm, 2mm, 3mm, 4mm, 5mm, 6mm, 8mm, 9mm, 10mm etc.
• Mesh Size: 5 mesh to 200 mesh
• Medium: Gas, oil, water etc.
• Special Design: Large size available
• Other Sizes, Materials and Pressure: Available on request
• Custom Made: Yes
✓ 900LB high pressure large size temporary strainer in SS316/SS316L provides reliable start-up protection for large diameter pipeline and high-pressure service up to 48 inch
900LB Temporary Strainer Standards
1. Design and Manufacture: ASME SEC VIII DIV.1
2. Inspection and Test: API 598
3. Flange End Dimension: ASME B16.5 (under 24 inch), ASME B16.47 (above 24 inch), DIN EN 1092-1
4. Pressure-Temperature Ratings: ASME SEC VIII DIV.1
900LB Temporary Strainer Pressure Rating Comparison: Class 600 vs 900 vs 1500
| Pressure Class | Design Pressure (bar) | Design Pressure (psi) | Typical Application |
|---|---|---|---|
| ANSI Class 600 | 102 | 1,480 | High-pressure process, refinery, power plant |
| ANSI Class 900 | 153 | 2,220 | High-pressure steam, gas transmission, refinery, large size start-up service |
| ANSI Class 1500 | 260 | 3,750 | Very high-pressure process, wellhead, gas injection |
Reference: ASME SEC VIII DIV.1. Class 900 is the standard high-pressure rating for large size temporary strainer in refinery, gas transmission and power plant service. Class 600 is more economical for medium-high pressure service; Class 1500 is selected for very high-pressure requirements.
Material of Construction For 900LB Temporary Strainer
| No. | Part Name | Material |
|---|---|---|
| 1 | Perforated Sheet (Plate) | SS316 / SS316L |
| 2 | Spacer Ring | SS316 / SS316L |
| 3 | Handle | SS316 / SS316L |
| 4 | Wire Mesh | SS316 / SS316L |
Reference: ASME SEC VIII DIV.1, ASTM A240, ASTM A182. 900LB large size temporary strainer is manufactured entirely from SS316 / SS316L for superior corrosion resistance in high-pressure start-up service. Perforated hole size and mesh size are tailor-made to customer requirements. Contact us for confirmed material certificate to EN 10204 3.1.
900LB Large Size Temporary Strainer Applications
• High-pressure start-up and commissioning: large diameter pipeline flushing and commissioning in refinery, petrochemical and power plant with 900LB rating.
• Large diameter pipeline: DN600 to DN1200 main pipeline temporary protection during construction and initial operation.
• High-pressure gas transmission: natural gas and process gas pipeline flushing with SS316/SS316L conical or basket type temporary strainer.
• Refinery and petrochemical: high-pressure process line start-up, removing weld slag, rust and debris before permanent strainer installation.
• Power plant high-pressure service: feedwater, condensate and high-pressure steam system temporary filtration during plant startup and maintenance.
• Offshore and marine: high-pressure offshore pipeline and seawater system start-up with SS316L construction for chloride resistance.
FAQ - 900LB Large Size Temporary Strainer
Q1: What is a 900LB Large Size Temporary Strainer?
A: A 900LB Large Size Temporary Strainer is a temporary filtration device rated to ANSI Class 900LB / PN150 / 15.0MPa (150 Bar), with sizes from 2 inch to 48 inch (DN50 to DN1200). It is designed and manufactured to ASME SEC VIII DIV.1 and used during system startup, commissioning or maintenance to protect pumps, valves, meters and other critical equipment from debris such as weld slag, rust and scale. The 900LB large size temporary strainer is available in Conical, Basket and Hat Type, all manufactured from SS316 / SS316L for high-pressure and corrosive service.
Q2: What materials are used for 900LB Temporary Strainer?
A: The 900LB large size temporary strainer is manufactured entirely from SS316 / SS316L stainless steel. Perforated sheet (plate), spacer ring, handle and wire mesh are all in SS316 or SS316L. SS316 contains molybdenum for chloride resistance and is suitable for high-pressure gas, oil and water service; SS316L is the low-carbon version for better weldability and intergranular corrosion resistance. For special corrosive media, other materials such as duplex 2205 / 2507 or Monel are available on request.
Q3: What is the difference between Conical, Basket and Hat Type for 900LB Temporary Strainer?
A: Conical Type has a cone-shaped screen with ring flange, suitable for general start-up service and pump suction protection, installed with the cone tip against the flow direction. Basket Type has a cylindrical basket screen with ring flange, providing the largest filtration area for high dirt load and system flushing, installed with the flat bottom against the flow direction. Hat Type is similar to Basket Type with a flatter profile. All three types are available in 900LB rating from 2 inch to 48 inch, and can be manufactured in SS316 / SS316L for high-pressure service.
Q4: What is the size range and pressure rating available?
A: 900LB large size temporary strainers are available from 2 inch to 48 inch (DN50 to DN1200). Pressure rating is 900LB / PN150 / 15.0MPa (150 Bar), in accordance with ASME SEC VIII DIV.1. Flange standards include ASME B16.5 (under 24 inch), ASME B16.47 (above 24 inch) and DIN EN 1092-1. Special designs, other sizes, materials and pressure ratings are available on request. The 900LB temporary strainer is mounted between two standard flanges in the pipeline, and its ring flange dimension matches the mating flange standard.
Q5: What perforated hole size and mesh size are available?
A: Perforated hole sizes include 1mm, 2mm, 3mm, 4mm, 5mm, 6mm, 8mm, 9mm and 10mm. Mesh sizes range from 5 mesh to 200 mesh. For high-pressure start-up and large diameter pipeline service, 3mm to 5mm perforated plate is common; for finer filtration, wire mesh from 20 to 100 mesh is specified. Combined screens (perforated plate + wire mesh) are available for high dirt load with fine filtration requirement. Perforated hole size and mesh size are tailor-made to customer requirements. Please specify when requesting a quotation.
Q6: How is the 900LB Large Size Temporary Strainer installed and removed?
A: The temporary strainer is installed between two flanges in the pipeline. The ring flange is sandwiched between the two mating flanges, and the bolts are tightened to compress the gasket and secure the strainer. For Conical Type, the cone tip must point against the flow direction; for Basket or Hat Type, the flat bottom must point against the flow direction. Installation is quick and does not require welding or special tools. After system flushing or commissioning is complete, the temporary strainer is removed by loosening the flange bolts, and a spacer or permanent strainer is installed in its place. For 900LB high-pressure service, verify the flange rating and gasket before installation.
Request a Quote for 900LB Large Size Temporary Strainer
Send us your size (2 to 48 inch or DN50 to DN1200), pressure rating (900LB / PN150 / 15.0MPa), type (Conical / Basket / Hat), material (SS316 / SS316L), perforated hole size or mesh size, and quantity. Our team will reply within 24 hours with price, drawing, and delivery time.
Email: sales@tengsvalve.com
Website: Request a Quote Online
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