Temporary Strainer - Conical, Basket and Plate Type, ANSI 150-1500LB, DIN PN10-PN100, 3/4 inch to 36 inch
Tengs Valve supplies high-quality Temporary Strainers (also called Conical Strainer, Inline Strainer / Inline Filter, Start Up Strainer, Cone-Hat Type Filter Strainer or Steel Conical Strainer), an essential filtration device used to protect pumps, valves and other critical equipment from debris during system startup, commissioning or maintenance. Manufactured from high-quality stainless steel, the temporary strainer ensures durability, corrosion resistance and reliable performance in demanding industrial applications. Manufacturing size range from 3/4 inch to 36 inch, with flange standards to ASME B16.5, ASME B16.47 and DIN EN 1092-1, pressure ratings to ANSI Class 150LB to 1500LB and DIN PN10 to PN100. Materials include SS304, SS316(L), duplex 2205 and super duplex 2507. Three configurations are available: Conical Type, Basket Type and Plate Type.
Temporary Strainer Specifications
• Strainer Type: Temporary Strainer, Conical Strainer, Start Up Strainer, Inline Strainer
• Available Types: Conical Type, Basket Type, Plate Type
• Manufacturing Size Range: 3/4 inch to 36 inch (DN20 to DN900)
• Flange Standards: ASME B16.5, ASME B16.47, DIN and EN 1092-1
• Pressure Rating (ANSI): Class 150LB, 300LB, 600LB, 900LB, 1500LB
• Pressure Rating (DIN): PN10, PN16, PN25, PN40, PN64, PN100
• Body / Screen Material: SS304, SS316(L), UNS S31803 (2205), UNS S32750 (2507)
• Mesh Material: SS304, SS316, SS316L, DSS
• Suitable Medium: Water, gas, oil, steam etc.
• Design and Manufacture: ASME B16.34, EN 12266-1
• Inspection and Test: API 598
• Others: On request
✓ Temporary strainer is an economical temporary filtration device for system startup, commissioning and maintenance, easily installed between flanges and removed after use
Suitable to Mount Between and Pressure Rating
| Standard | Pressure Rating |
|---|---|
| ANSI | Class 150LB, 300LB, 600LB, 900LB, 1500LB |
| DIN / EN 1092 | PN10, PN16, PN25, PN40, PN64, PN100 |
Reference: ASME B16.5, ASME B16.47, DIN EN 1092-1. Temporary strainer is mounted between two flanges in the pipeline, compatible with both ANSI and DIN standard flange dimensions.
Temporary Strainer Type Selection: Conical vs Basket vs Plate
| Item | Conical Type | Basket Type | Plate Type |
|---|---|---|---|
| Structure | Cone-shaped screen with ring flange | Cylindrical basket with ring flange | Flat perforated plate with ring flange |
| Filtration Area | Medium | Large | Small |
| Pressure Drop | Medium | Medium | Low |
| Flow Direction | One direction (cone tip against flow) | One direction | One direction |
| Typical Application | General start-up service, pump suction | High dirt load, system flushing, commissioning | Low cost, temporary protection in horizontal pipeline |
| Available Sizes | 3/4 inch to 36 inch | 3/4 inch to 36 inch | 3/4 inch to 36 inch |
Reference: ASME B16.34, API 598. Conical type is the standard choice for general start-up service; Basket type offers the largest filtration area for high dirt load and system flushing; Plate type is the most economical temporary protection for horizontal pipeline. Please refer to our Temporary Conical Strainer page for detailed specifications.
Material of Construction For Temporary Strainer
| No. | Part Name | SS304 | SS316 (L) | UNS S31803 (2205) | UNS S32750 (2507) |
|---|---|---|---|---|---|
| 1 | Body / Screen | SS304 | SS316 (L) | UNS S31803 (2205) | UNS S32750 (2507) |
| 2 | Mesh | SS304 / SS316 / SS316L / DSS | |||
Reference: ASTM A240, ASTM A182, ASTM A789. Temporary strainer is manufactured from stainless steel 304, 316(L), duplex 2205 or super duplex 2507 for superior corrosion resistance. Materials may vary by model and pressure rating. Contact us for confirmed material certificate to EN 10204 3.1.
Key Features and Benefits
• Material: Constructed from stainless steel for superior strength and corrosion resistance.
• Temporary Use: Designed for short-term installation during system flushing, initial operation, or maintenance.
• Debris Protection: Filters out particles, rust, and foreign materials to prevent damage to downstream equipment.
• High-Temperature and Pressure Resistance: Suitable for oil and gas, chemical processing, water treatment, and power plants.
• Easy Installation and Removal: Lightweight yet robust design for quick setup and removal after use.
• Versatile Applications: Ideal for pipelines in refineries, petrochemical plants, HVAC systems, and industrial processes.
Why Choose a Stainless Steel Temporary Strainer
• Longer Equipment Lifespan: Prevents costly damage to pumps and valves during system startup and commissioning.
• Cost-Effective Solution: Eliminates the need for permanent strainers in temporary applications, saving installation and material cost.
• Reliable Performance: Stainless steel construction ensures durability even in harsh environments, including marine and chemical service.
• Fast Commissioning: Lightweight design allows quick installation between flanges and easy removal after system flushing.
• Wide Compatibility: Available in ANSI and DIN standard flange dimensions for global project compatibility.
Temporary Strainer Applications
• System startup and commissioning: temporary protection of pumps, valves, meters and heat exchangers during initial system operation and flushing.
• Oil refinery and petrochemical: pipeline flushing and commissioning in refineries and petrochemical plants, removing weld slag, rust and debris.
• Power plant: temporary filtration in feedwater, condensate, cooling water and steam systems during plant startup and maintenance.
• Water treatment: commissioning of municipal water networks, pumping stations and treatment plants with temporary strainer installation.
• Chemical processing: temporary filtration of corrosive media during system flushing, with SS316(L) or duplex 2205/2507 construction.
• HVAC and marine: temporary protection in HVAC systems and marine pipelines during construction and commissioning.
FAQ - Temporary Strainer
Q1: What is a Temporary Strainer?
A: A Temporary Strainer (also called Conical Strainer, Start Up Strainer, Inline Strainer or Cone-Hat Type Filter Strainer) is a temporary filtration device mounted between two flanges in the pipeline during system startup, commissioning or maintenance. It protects pumps, valves, meters and other critical equipment from debris such as weld slag, rust, scale and foreign materials generated during construction or system flushing. After the system is cleaned and running normally, the temporary strainer is removed and replaced by a spacer or permanent strainer.
Q2: What is the difference between Conical, Basket and Plate Type Temporary Strainer?
A: Conical Type has a cone-shaped screen with ring flange, suitable for general start-up service and pump suction protection. Basket Type has a cylindrical basket screen with ring flange, providing the largest filtration area for high dirt load and system flushing service. Plate Type has a flat perforated plate with ring flange, offering the lowest cost and lowest pressure drop for temporary protection in horizontal pipeline. All three types are available from 3/4 inch to 36 inch, and can be manufactured in SS304, SS316(L), duplex 2205 or super duplex 2507.
Q3: What size range and pressure rating are available?
A: Temporary strainers are available from 3/4 inch to 36 inch (DN20 to DN900). Pressure ratings include ANSI Class 150LB, 300LB, 600LB, 900LB and 1500LB, as well as DIN PN10, PN16, PN25, PN40, PN64 and PN100. Flange standards include ASME B16.5 (under 24 inch), ASME B16.47 (above 24 inch) and DIN EN 1092-1. The temporary strainer is mounted between two standard flanges in the pipeline, and its ring flange dimension matches the mating flange standard. Please specify the flange standard and pressure rating when requesting a quotation.
Q4: What materials are available for temporary strainer?
A: Temporary strainers are manufactured from stainless steel, including SS304, SS316(L), duplex UNS S31803 (2205) and super duplex UNS S32750 (2507). The body / screen is made from the selected stainless steel grade; the mesh is SS304, SS316, SS316L or DSS. SS304 is the standard and most economical choice for general water, HVAC and non-chloride service; SS316(L) is selected for chloride-containing and corrosive media; duplex 2205 and super duplex 2507 are used for seawater, desalination and offshore service where high chloride resistance is required.
Q5: How is the temporary strainer installed and removed?
A: The temporary strainer is installed between two flanges in the pipeline. The ring flange of the temporary strainer is sandwiched between the two mating flanges, and the bolts are tightened to compress the gasket and secure the strainer. 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. The conical type must be installed with the cone tip against the flow direction.
Q6: How do I select the right temporary strainer for my project?
A: To select the right temporary strainer, consider the following: (1) Pipeline size and flange standard — 3/4 inch to 36 inch, ASME B16.5 / B16.47 or DIN EN 1092-1. (2) Pressure rating — ANSI Class 150LB to 1500LB or DIN PN10 to PN100. (3) Fluid medium and corrosiveness — SS304 for general service, SS316(L) for chloride, duplex 2205/2507 for seawater. (4) Dirt load — Conical type for general service, Basket type for high dirt load. (5) Flow direction — Conical type must be installed with the cone tip against the flow. Please send us your project details and we will recommend the suitable type.
Request a Quote for Temporary Strainer
Send us your size (3/4 to 36 inch or DN20 to DN900), flange standard (ASME B16.5 / B16.47 or DIN EN 1092-1), pressure rating (Class 150LB to 1500LB or PN10 to PN100), type (Conical / Basket / Plate), material (SS304 / SS316 / SS316L / 2205 / 2507), 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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Temporary Strainer Dimensions Details
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