Super Duplex Forged Y Type Strainer - F53 / UNS S32750 / SAF 2507, Class 150-800LB, Female NPT
Tengs Valve supplies high-quality Super Duplex Stainless Steel Forged Y Type Strainers in A182-F53 / UNS S32750 / SAF 2507, designed for bore sizes from 1/2 inch to 2 inch (DN15 to DN50). Available with Female NPT (Threaded / Screwed) ends. The forged body provides superior strength and corrosion resistance, especially in high-chloride and sour service. Pressure rating ranges from ANSI Class 150LB to 800LB. Screens are supplied in SS316 and duplex stainless steel (2205 / 2507). Ideal for seawater, desalination, offshore, chemical injection, sour gas and high-chloride small bore piping.
Super Duplex Stainless Steel Forged Y Type Strainer Specifications
• Sizes: 1/2 inch to 2 inch (DN15 to DN50)
• Pressure Rating: ANSI 150LBS to 800LB
• Suitable Medium: Water, gas, oil, steam etc.
• Body Material: A182-F53, UNS S32750, SAF 2507
• Screen: Stainless Steel (316SS), Duplex Stainless Steel (2205 / 2507)
• End Connection: Female NPT (Threaded, Screwed)
• Bonnet Type: Bolted Bonnet
• Drain Connection: Plug, Flange, or Valve
• Design and Manufacture: BS5352
• Inspection and Test: API 598
• Others: On request
✓ Super duplex F53 forged Y strainer provides the highest chloride and sour resistance for small bore high-pressure service
Super Duplex Forged Y Type Strainer Structure Drawing
Super Duplex Forged Y Strainer Pressure Rating Comparison: Class 150 vs 300 vs 600 vs 800
| Pressure Class | Design Pressure (bar) | Design Pressure (psi) | Typical Application |
|---|---|---|---|
| Class 150 | 19.6 | 285 | Low-pressure seawater, water treatment, general chemical |
| Class 300 | 51 | 740 | Offshore process, sour gas medium-pressure service |
| Class 600 | 102 | 1,480 | High-pressure sour gas, desalination, chemical injection |
| Class 800 | 136 | 1,975 | High-pressure small bore piping, wellhead, seawater injection |
Reference: ASME B16.34, BS5352. Class 800 is the standard high-pressure rating for super duplex forged Y strainer small bore service. Class 150 to 600 are available for lower pressure requirements.
Main Material List For Super Duplex Forged Y Type Strainer
| Part Name | Material (F51 / 2205) | Material (F53 / 2507) |
|---|---|---|
| Body | F51 / UNS S31803 / SAF 2205 | F53 / UNS S32750 / SAF 2507 |
| Gasket | Graphite + SS | |
| Bonnet | F51 / UNS S31803 / SAF 2205 | F53 / UNS S32750 / SAF 2507 |
| Bolt | B8M | B8M |
| Screen | SS316, 2205, 2507 | |
Reference: ASTM A182, ASTM A276, NORSOK M-630. F53 / UNS S32750 / SAF 2507 is the super duplex grade providing PREN ≥ 40 for superior chloride and sour resistance. F51 / 2205 is available as an alternative duplex option.
Main Face to Face Dimensions Class 150LB - 800LB
| Size (NPS) | R.P | - | 1/2 | 3/4 | 1 | 1 1/4 | 1 1/2 | 2 |
|---|---|---|---|---|---|---|---|---|
| F.P. | 1/4 | 3/8 | 1/2 | 3/4 | 1 | 1 1/4 | 1 1/2 | |
| Face to face (mm) | L | 98 | 98 | 98 | 120 | 140 | 140 | 170 |
Reference: BS5352. Dimensions in mm. R.P = Reduced Port, F.P = Full Port. Face to face (L) may vary by manufacturer. Contact us for confirmed drawing.
Super Duplex Forged Y Type Strainer Applications
• Seawater and desalination: seawater intake, RO pretreatment and brine discharge with F53 / 2507 body and 2507 screen.
• Offshore and subsea: offshore platform process piping, subsea manifolds and seawater injection with Female NPT ends.
• Sour gas and chemical injection: H2S-containing gas and corrosive chemical injection lines requiring PREN ≥ 40 resistance.
• High-pressure instrument lines: small bore impulse and instrument piping in refinery and chemical plants with 800LB rating.
• Wellhead and oilfield: high-pressure small bore wellhead piping, gas lift and chemical injection with F53 super duplex body.
• Pulp and paper bleach plant: chlorine dioxide, hypochlorite and aggressive bleach service requiring super duplex construction.
FAQ - Super Duplex Forged Y Type Strainer
Q1: What is a Super Duplex Forged Y Type Strainer?
A: A Super Duplex Forged Y Type Strainer is a Y-shaped pipeline strainer with a forged body made from super duplex stainless steel F53 / UNS S32750 / SAF 2507. It is designed for bore sizes from 1/2 inch to 2 inch with Female NPT ends, and rated from Class 150LB to 800LB. The super duplex body provides PREN ≥ 40, offering superior resistance to chloride pitting, crevice corrosion and stress corrosion cracking, making it ideal for seawater, desalination, offshore and sour gas service.
Q2: What is the difference between F51 (2205) and F53 (2507)?
A: F51 / UNS S31803 / SAF 2205 is standard duplex stainless steel with PREN ≥ 34, offering good resistance to chloride stress corrosion cracking for general seawater and offshore service. F53 / UNS S32750 / SAF 2507 is super duplex stainless steel with PREN ≥ 40, providing significantly higher resistance to chloride pitting, crevice corrosion and sour gas (H2S). For the most demanding seawater injection, subsea and sour gas service, F53 is the recommended grade; for general seawater and desalination service, F51 is a more economical choice.
Q3: Why choose Female NPT ends instead of flanged or BW ends?
A: Female NPT (National Pipe Thread) ends allow easy installation and removal without welding, making them ideal for small bore piping where the strainer may need periodic cleaning or replacement. Female NPT provides a leak-tight threaded connection for 1/2 inch to 2 inch piping up to 800LB. For permanent high-integrity service, BW ends are preferred; for flanged connection, RF or RTJ ends are available. Please specify the end connection when requesting a quotation.
Q4: What is the pressure rating and size range available?
A: Super duplex forged Y strainers are available from 1/2 inch to 2 inch (DN15 to DN50). Pressure rating ranges from ANSI Class 150LB to 800LB. Class 800 is the standard high-pressure rating for small bore forged Y strainer service. Class 150, 300 and 600 are available for lower pressure requirements. The forged body provides higher strength than cast body, making it suitable for the full 150LB to 800LB range.
Q5: What screen materials are available?
A: Screens are supplied in SS316, duplex 2205 and super duplex 2507. For F53 / 2507 body, super duplex 2507 screen is recommended to match the corrosion resistance of the body. Duplex 2205 screen is suitable for general seawater and desalination service; SS316 screen can be used for non-chloride or low-chloride service. Perforated hole size and mesh size are tailor-made to customer requirements.
Q6: How do I maintain a super duplex forged Y strainer?
A: Maintenance is simple: isolate the strainer, depressurize, remove the bolted bonnet, take out the screen, clean or replace it, install a new gasket (graphite + SS), and reassemble. The Y-shaped forged body allows screen removal without disconnecting the pipeline. For Female NPT ends, the strainer can be unscrewed from the pipeline if needed. Screen replacement is recommended when the pressure drop exceeds the initial clean-screen value by 0.5-1.0 bar. After maintenance, pressure test is recommended before returning to service.
Request a Quote for Super Duplex Forged Y Type Strainer
Send us your size (1/2 to 2 inch or DN15 to DN50), pressure rating (Class 150LB to 800LB), body material (F53 / 2507), end connection (Female NPT), screen material (SS316 / 2205 / 2507), 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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Forged Y Strainer Dimension Details
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