Simplex Basket Strainer - Bolted Quick Opening Davit Arm Bonnet, ANSI and DIN, 2 inch to 36 inch
Tengs Valve is a China Simplex Basket Strainer supplier and manufacturer, offering Industrial Simplex Basket Strainers (Simplex Basket Filter) flanged to ANSI and DIN standards. Sizes range up to 36 inch (DN900), with Bolted Bonnet (Cover), Quick Opening Bonnet (Cover) and Davit Arm design available. Both Cast and Fabricated Simplex Basket Strainers are supplied in carbon steel (GS-C25, WCB, WPB, LCB), stainless steel (CF8, CF8M, CF3, CF3M) and duplex stainless steel (A890-4A, 5A), plus other special materials. Screens are available in 304SS, 316SS, UNS 2205 and 2507 with mesh sizes from 20 to 400 mesh. The Simplex basket strainer offers high dirt holding capacity and a large filtration area, protecting pumps, instruments and heat exchangers in water, gas, oil and steam service.
Specifications For Simplex Basket Strainer (Filter)
• Strainer Type: Simplex Basket Strainer (Simplex Basket Filter)
• Strainer Sizes: 2 inch to 36 inch (DN50 to DN900)
• Pressure Rating (ANSI): 150LB, 300LB, 600LB
• Pressure Rating (DIN): PN6, PN10, PN16, PN25, PN40
• Suitable Medium: Water, gas, oil, steam etc.
• Body Material: GS-C25, WCB, WPB, LCB, CF8, SS304, CF8M, SS316, CF3, SS304L, CF3M, SS316L, Duplex Stainless Steel (A890-4A, 5A) etc.
• Screen: Stainless Steel (304SS, 316SS, UNS 2205, 2507)
• Perforated Hole Size and Mesh Size: 20, 40, 60, 80, 100, 200, 400 mesh etc.
• Connection Ends: Flanged (FF, RF, RTJ), BW (Butt Welding)
• Bonnet (Cover) Type: Bolted Bonnet (BB), Quick-Opening Bonnet, Davit Arm
• Standards: API, ANSI, DIN
• Strainer Structure: Cast Type, Fabricated (Welding) Type
✓ Simplex basket strainer provides the most economical single-chamber filtration with three bonnet design options for different maintenance requirements
Simplex Basket Strainer Standards
1. Design and Manufacture: ASME B16.34, DIN 3230
2. Inspection and Test: API 598, DIN 3230
3. End Flange Dimension: ASME B16.5 (size under 24 inch), ASME B16.47 (size above 24 inch), DIN EN 1092-1
4. BW End Dimension: ASME B16.25, EN 12627
5. Face to Face: ASME B16.10, DIN 3202
6. Pressure-Temperature Ratings: ASME B16.34, DIN EN 1092-1
Simplex Basket Strainer Bonnet Type Selection: BB vs Quick Opening vs Davit Arm
| Bonnet Type | Opening Method | Typical Size Range | Key Characteristic | Typical Application |
|---|---|---|---|---|
| Bolted Bonnet (BB) | Bolts removed one by one | 2 inch to 36 inch | Standard design, most economical, high pressure sealing | General industrial service, refinery, chemical, high-pressure process |
| Quick Opening Bonnet | Swing bolts or clamp, fast access | 2 inch to 12 inch | Fast basket cleaning, no tools required | Frequent cleaning service, water, food and beverage, HVAC |
| Davit Arm | Swing arm lifts heavy cover | 8 inch to 36 inch | Cover lifted by davit arm, no crane required | Large diameter, heavy cover, main pipeline and district heating |
Reference: ASME B16.34, API 598, DIN 3230. For large diameter or heavy cover Simplex basket strainers, Davit Arm design eliminates the need for crane or lifting equipment during maintenance. For frequent cleaning service, Quick Opening Bonnet reduces downtime significantly.
Cast Type vs Fabricated Type Simplex Basket Strainer
| Item | Cast Type | Fabricated (Welding) Type |
|---|---|---|
| Manufacturing Method | Sand casting, one-piece body | Steel plate welded, multi-piece construction |
| Typical Size Range | 2 inch to 24 inch (DN50 to DN600) | 8 inch to 36 inch (DN200 to DN900) |
| Wall Thickness | Uniform, thicker walls | Customizable, lighter weight in large sizes |
| Lead Time | Longer (pattern and casting) | Shorter for large sizes and custom dimensions |
| Typical Application | General industrial service, water, oil, gas, chemical | Large diameter pipeline, district heating main lines, custom projects |
Reference: ASME B16.34, DIN 3230. Cast type Simplex basket strainer is the standard choice for sizes up to 24 inch; fabricated type is preferred for sizes above 24 inch, custom dimensions and short lead time projects.
Simplex Basket Strainer Main Parts and Material List
| No. | Part Name | Carbon Steel | Stainless Steel | Duplex / Bronze | Iron |
|---|---|---|---|---|---|
| 01 | Body | GS-C25, A216-WCB, A234-WPB, A352-LCB | A351-CF8, CF8M, CF3, CF3M | A890-4A / 5A, Bronze | Cast Iron, Ductile Iron |
| 02 | Basket / Screen | 304SS, 316SS | 304SS, 316SS, 316LSS | Duplex 2205, Super Duplex 2507, Monel | 304SS, 316SS |
| 03 | Wire Mesh | 304SS, 316SS | 304SS, 316SS, 316LSS | Duplex 2205, Super Duplex 2507, Monel | 304SS, 316SS |
| 04 | Gasket | Graphite, Graphite + Stainless Steel (304SS / 316SS), PTFE, EPDM | |||
| 05 | Bonnet / Cover | GS-C25, A105, A216-WCB | A182-F304, F304L, F316, F316L | A182-F51, A182-F53, Bronze | Cast Iron, Ductile Iron |
| 06 | Bolt | A193 B7 | A193 B8, A193 B8M | A193 B8M, Monel | A193 B7 |
| 07 | Nut | A194 2H | A194 8, A194 8M | A194 8M, Monel | A194 2H |
| 08 | Drain Plug | A105, A193 B7 | A182-F304, F316, A193 B8, B8M | A182-F51, F53, A193 B8M, Bronze | Steel |
| 09 | Davit Arm | On Request | |||
Reference: ASME B16.34, API 598, DIN 3230, ASTM A216, A234, A351, A890, A182, A105. GS-C25 is a German standard cast steel grade equivalent to EN 1.0619 and A216-WCB. Materials may vary by model and pressure rating. Contact us for confirmed material certificate to EN 10204 3.1.
Simplex Basket Strainer Pressure Rating Comparison: ANSI vs DIN
| Standard | Pressure Rating | Design Pressure (bar) | Design Pressure (psi) | Typical Application |
|---|---|---|---|---|
| ANSI | 150LB | 19.6 | 285 | Water distribution, HVAC, general industrial piping |
| ANSI | 300LB | 51 | 740 | General hydrocarbon, process piping, medium-pressure service |
| ANSI | 600LB | 102 | 1,480 | High-pressure process, refinery, power plant |
| DIN | PN6 / PN10 | 6 / 10 | 87 / 145 | Low-pressure water, HVAC, district heating return lines |
| DIN | PN16 / PN25 | 16 / 25 | 232 / 362 | District heating supply lines, water distribution, medium-pressure steam |
| DIN | PN40 | 40 | 580 | High-pressure steam, boiler feedwater, high-pressure process piping |
Reference: ASME B16.34, DIN EN 1092-1. ANSI Class 150 and DIN PN16 are the most common ratings for Simplex basket strainer service; higher ratings are available for refinery, power plant and high-pressure process service.
Simplex Basket Strainer Applications
• Water treatment and distribution: municipal water networks, pump suction and discharge protection with high dirt holding capacity basket.
• Oil and gas process piping: refinery process lines, pump protection and general hydrocarbon service with ANSI Class 150 to 600.
• Power plant and boiler service: feedwater, condensate and cooling water protection lines with large filtration area.
• District heating and HVAC: supply and return lines requiring DIN PN16 / PN25 Simplex basket strainer with Davit Arm cover.
• Chemical and petrochemical: corrosive media filtration with CF8M, CF3M or duplex stainless steel basket and Monel screen.
• Food and beverage: hygienic stainless steel service with Quick Opening Bonnet for frequent cleaning cycles.
FAQ - Simplex Basket Strainer
Q1: What is a Simplex Basket Strainer?
A: A Simplex Basket Strainer (Simplex Basket Filter) is a single-chamber basket type pipeline filter that removes small impurities from liquid, gases and pipe systems using a perforated screen or wire mesh basket. It has one basket chamber and one bonnet, so the pipeline must be shut down to clean or replace the basket. It is the most economical and widely used basket strainer type, suitable for general water, oil, gas and steam service. For continuous operation without shutdown, a Duplex Basket Strainer with two basket chambers and diverter valve is recommended.
Q2: What is the difference between Bolted Bonnet, Quick Opening Bonnet and Davit Arm?
A: Bolted Bonnet (BB) is the standard design where the cover is fixed by bolts and must be removed one by one. It is the most economical and is used for general industrial service and high-pressure sealing. Quick Opening Bonnet uses swing bolts or a clamp mechanism for fast access without tools, suitable for frequent cleaning service such as water, food and beverage, and HVAC. Davit Arm design has a swing arm that lifts the heavy cover, eliminating the need for crane or lifting equipment during maintenance. It is preferred for large diameter (8 inch to 36 inch) Simplex basket strainers with heavy covers, such as district heating main lines.
Q3: What is the difference between Cast Type and Fabricated Type?
A: Cast type Simplex basket strainer has a one-piece sand-cast body, typically available from 2 inch to 24 inch (DN50 to DN600). It has uniform thicker walls and is the standard choice for general industrial service. Fabricated (welding) type is made from welded steel plates, typically available from 8 inch to 36 inch (DN200 to DN900). It offers shorter lead time for large sizes and custom dimensions, and lighter weight in large sizes. For sizes above 24 inch or special project requirements, fabricated type is preferred.
Q4: What body materials are available for Simplex basket strainers?
A: Body materials include carbon steel (GS-C25, A216-WCB, A234-WPB, A352-LCB), stainless steel (A351-CF8, CF8M, CF3, CF3M, equivalent to SS304, SS316, SS304L, SS316L), duplex stainless steel (A890-4A and 5A) and other special materials. GS-C25 is a German standard cast steel grade equivalent to EN 1.0619 and A216-WCB. Carbon steel is the most economical for water, oil and steam service; stainless steel and duplex are selected for corrosive, seawater and offshore service.
Q5: What is the size range and end connection available?
A: Simplex basket strainers are available from 2 inch to 36 inch (DN50 to DN900). End connections include Flanged FF (Flat Face), RF (Raised Face) and RTJ (Ring Joint) to ASME B16.5 (size under 24 inch), ASME B16.47 (size above 24 inch) or DIN EN 1092-1, and Butt Weld (BW) to ASME B16.25 or EN 12627. Perforated hole size and mesh size include 20, 40, 60, 80, 100, 200 and 400 mesh, tailor-made to customer requirements.
Q6: How do I maintain a Simplex Basket Strainer?
A: Simplex basket strainer maintenance is simple: isolate the strainer, depressurize, open the bonnet (bolted, quick opening, or davit arm), remove the basket, clean or replace the screen and mesh, install a new gasket, and reassemble. For standard bolted bonnet, bolts must be removed one by one. For quick opening bonnet, no tools are required. For davit arm design, the cover is swung open by the davit arm without a crane. Screen replacement is recommended when the pressure drop exceeds the initial clean-screen value by 0.5-1.0 bar. For continuous operation without shutdown, a Duplex Basket Strainer is recommended.
Request a Quote for Simplex Basket Strainer
Send us your size, pressure rating (ANSI 150LB / 300LB / 600LB or DIN PN6 / PN10 / PN16 / PN25 / PN40), body material (GS-C25 / WCB / WPB / LCB / CF8 / CF8M / CF3 / CF3M / Duplex), body structure (Cast or Fabricated), bonnet type (Bolted / Quick Opening / Davit Arm), screen material and mesh size, end connection (FF / RF / RTJ / BW), 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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