Forged Y Type Strainer 800LBS - ANSI Class 800, 1/2 inch to 2 inch, SW NPT BW Ends
Tengs Valve supplies high-quality Forged Steel Y Type Strainers in ANSI Class 800LBS, designed for bore sizes from 1/2 inch to 2 inch (DN15 to DN50). Available with Socket Weld (SW), Threaded (NPT) or Butt Weld (BW) ends. Both Bolted Bonnet and Welded Bonnet designs are available in Full Port or Reduced Port configurations. Body materials include forged carbon steel (A105, LF2), stainless steel (SS304, SS316, SS304L, SS316L), duplex (F51, F53) and alloy 20. Screens are supplied in 304SS and 316SS. Designed and manufactured to BS5352, with inspection and test to API 598. Ideal for high-pressure instrument lines, small bore piping, steam tracing and hydraulic systems.
Specifications For Forged Y Type Strainer 800LBS
• Sizes: 1/2 inch to 2 inch (DN15 to DN50)
• Pressure Rating: ANSI 800LBS / 800LB
• Suitable Medium: Water, gas, oil, steam etc.
• Body Material: A105, LF2, SS304, SS316, SS304L, SS316L, F51, F53, Alloy 20 etc.
• Screen: Stainless Steel (304SS, 316SS)
• End Connection: BW, SW, NPT (Threaded, Screwed)
• Bonnet Type: Bolted Bonnet, Welded Bonnet
• Port Type: Full Port (F.P.), Reduced Port (R.P.)
• Design and Manufacture: BS5352
• Inspection and Test: API 598
• Others: On request
✓ Class 800 forged Y strainer provides high-strength small bore filtration for high-pressure instrument and piping service
Forged Y Type Strainer Standards
1. Design and Manufacture: BS5352
2. Inspection and Test: API 598
3. Structure Features: Bolted Bonnet, Welded Bonnet, Full Port, Reduced Port
End Connection Standards
| End Connection | Standard |
|---|---|
| Screwed (Threaded) | ANSI B1.20.1 (NPT) / BS21 (BSP) |
| Butt Weld (BW) | ANSI B16.25 |
| Socket Weld (SW) | ANSI B16.11 |
Reference: BS5352, API 598. Three end connection types are available for Forged Y strainer 800LBS: Screwed (NPT/BSP), Butt Weld (BW) and Socket Weld (SW). Socket Weld and Threaded ends are the most common for 1/2 inch to 2 inch small bore high-pressure service.
Forged Y Strainer Pressure Rating Comparison: 800LBS vs 900LBS vs 1500LBS
| Pressure Class | Design Pressure (bar) | Design Pressure (psi) | Typical Application |
|---|---|---|---|
| 800LBS | 136 | 1,975 | High-pressure small bore piping, instrument lines, steam tracing |
| 900LBS | 153 | 2,220 | Very high-pressure process, wellhead, gas injection |
| 1500LBS | 260 | 3,750 | Ultra high-pressure small bore, wellhead, hydraulic systems |
Reference: BS5352, ASME B16.34. 800LBS is the standard pressure class for forged Y strainer small bore service. 900LBS and 1500LBS are available for higher pressure requirements.
Class 800LBS Bolted Bonnet: Full Port or Reduced Port
Bolted Bonnet Dimensions (mm)
| 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 |
| Height (mm) | H | 70 | 70 | 70 | 100 | 110 | 120 | 120 |
| Weight (kgs) | 2.2 | 2.2 | 2.1 | 4.2 | 8.9 | 8.9 | 10 | |
Reference: BS5352. Dimensions in mm. R.P = Reduced Port, F.P = Full Port. Face to face (L) and Height (H) may vary by manufacturer. Contact us for confirmed drawing.
Class 800LBS Welded Bonnet: Full Port or Reduced Port
Welded Bonnet Dimensions (mm)
| 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 |
| Height (mm) | H | 65 | 65 | 65 | 95 | 105 | 110 | 110 |
| Weight (kgs) | 1.8 | 1.8 | 2.0 | 3.5 | 9.0 | 8.0 | 12 | |
Reference: BS5352. Dimensions in mm. R.P = Reduced Port, F.P = Full Port. Face to face (L) and Height (H) may vary by manufacturer. Contact us for confirmed drawing.
Forged Y Type Strainer 800LBS Applications
• High-pressure instrument lines: small bore instrument and impulse piping in refinery, chemical and power plant requiring 800LBS rating.
• Steam tracing and sampling: steam tracing lines, sample systems and analyzer protection with forged body high-pressure strainer.
• Chemical injection: chemical and inhibitor injection lines requiring small bore forged strainer in SS304, SS316 or F51 material.
• Hydraulic systems: high-pressure hydraulic power systems with 800LBS rating for pump and valve protection.
• Wellhead and oilfield: high-pressure small bore wellhead piping, gas lift and chemical injection with LF2 low-temperature or F51 duplex body.
• General small bore piping: 1/2 inch to 2 inch piping requiring forged Y strainer with SW or NPT ends, at 800LBS rating.
FAQ - Forged Y Type Strainer 800LBS
Q1: What is a Forged Y Type Strainer 800LBS?
A: A Forged Y Type Strainer 800LBS is a Y-shaped pipeline strainer with a forged steel body, rated to ANSI Class 800 (136 bar / 1,975 psi). It is designed for bore sizes from 1/2 inch to 2 inch (DN15 to DN50) and is the standard choice for high-pressure small bore piping, instrument lines and hydraulic systems. The forged body provides higher strength and tighter grain structure than cast body, making it suitable for high-pressure and thermal shock service.
Q2: What is the difference between Bolted Bonnet and Welded Bonnet?
A: Bolted Bonnet design allows the bonnet to be removed by loosening the bolts, making screen cleaning and replacement easy without cutting or welding. Welded Bonnet design provides a permanent leak-tight welded connection, preferred for high-integrity and high-pressure service where no leakage is acceptable. For 800LBS forged Y strainer, both designs are available. Bolted Bonnet is more common for maintenance-accessible service; Welded Bonnet is selected for critical high-pressure service where the strainer is not frequently cleaned.
Q3: What is the difference between Full Port and Reduced Port?
A: Full Port (F.P.) has a bore equal to the pipeline inside diameter, providing the lowest pressure drop and allowing full flow. Reduced Port (R.P.) has a smaller bore than the pipeline, providing higher strength and lower cost but with slightly higher pressure drop. For 800LBS forged Y strainer, Full Port is available from 1/4 inch to 1 1/2 inch; Reduced Port is available from 1/2 inch to 2 inch. Full Port is preferred for low pressure drop requirement; Reduced Port is selected for high pressure and cost-sensitive projects.
Q4: What body materials are available for Forged Y Strainer 800LBS?
A: Body and bonnet materials include forged carbon steel (A105, LF2 for low-temperature service down to -46°C), stainless steel (SS304, SS304L, SS316, SS316L), duplex (F51, F53) and alloy 20. A105 is the standard and most economical choice for general high-pressure service; LF2 is selected for low-temperature service; SS304 and SS316 are selected for corrosive service; F51 and F53 duplex are used for high-chloride and sour service. Screen is 304SS or 316SS.
Q5: What is the size range and end connection available?
A: Forged Y strainer 800LBS is available from 1/2 inch to 2 inch (DN15 to DN50). End connections include Socket Weld (SW) to ANSI B16.11, Threaded (NPT) to ANSI B1.20.1 or BS21 (BSP), and Butt Weld (BW) to ANSI B16.25. Socket Weld and Threaded ends are the most common for small bore high-pressure service. Socket Weld provides a permanent leak-tight connection; Threaded allows easy installation and removal. Please specify the end connection when requesting a quotation.
Q6: How do I maintain a Forged Y Strainer 800LBS?
A: Maintenance is simple: isolate the strainer, depressurize, remove the bonnet (bolted bonnet or welded bonnet), take out the screen, clean or replace it, install a new gasket (graphite + 304SS / 316SS), and reassemble. The Y-shaped body allows screen removal without disconnecting the pipeline. For welded bonnet design, the bonnet must be cut and re-welded during screen replacement; for bolted bonnet design, the bonnet can be removed by loosening the bolts. Screen replacement is recommended when the pressure drop exceeds the initial clean-screen value by 0.5-1.0 bar.
Request a Quote for Forged Y Type Strainer 800LBS
Send us your size (1/2 to 2 inch or DN15 to DN50), pressure rating (800LBS), body material (A105 / LF2 / SS304 / SS316 / SS304L / SS316L / F51 / F53 / Alloy 20), end connection (SW / NPT / BW), bonnet type (Bolted / Welded), port type (Full Port / Reduced Port), screen material, 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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