3/4″-150LB F53 Y Pattern Strainer
TECHNICAL DATA SHEET
Product Name: 3/4-inch 150LB F53 Super Duplex Stainless Steel Y Pattern Strainer
Model/Specification: 3/4″-150LB-F53-Y-STRAINER-NPTF
Product Type: Y Type Strainer (Threaded)
Material: Super Duplex Stainless Steel – ASTM A182 F53 (UNS S32750)
Connection Type: NPT Female (NPT-F)
- Basic Design Parameters
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Parameter
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Standard/Specification
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|
Rozmiar
|
3/4 inch (DN20)
|
|
Pressure Class
|
Class 150 LB (PN20 / 290 PSI)
|
|
Materiał korpusu
|
Super Duplex Stainless Steel – ASTM A182 F53 (UNS S32750)
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|
Manufacturing Process
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Investment Casting / Close Die Forged Steel
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Design Standard
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ASME B16.34 / BS 5352 / MSS SP-118
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End Connection Standard
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ASME B1.20.1 (NPT Female)
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Face to Face Standard
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Manufacturer Standard / MSS SP-118
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Test & Inspection Std.
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API 598 / ISO 5208
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Screen / Basket Design
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Perforated or Mesh type, removable for cleaning
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- F53 Super Duplex Material Specifications
ASTM A182 F53 (UNS S32750 / 2507) is a super duplex stainless steel with a PREN (Pitting Resistance Equivalent Number) ≥ 40, offering exceptional resistance to pitting, crevice corrosion, and chloride stress corrosion cracking in highly aggressive environments .
2.1 Chemical Composition (Weight %)
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Element
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Cr
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Ni
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Mo
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N
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C
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Mn
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Si
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P
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S
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Cu
|
|
F53
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24.0-26.0
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6.0-8.0
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3.0-5.0
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0.24-0.32
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0.03 max
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1.20 max
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0.80 max
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0.035 max
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0.020 max
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0.50 max
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2.2 Mechanical Properties
|
Property
|
Value
|
|
Tensile Strength (min)
|
795-800 MPa (116 ksi)
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|
Yield Strength (0.2% min)
|
550 MPa (80 ksi)
|
|
Elongation (min)
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15-25%
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Hardness (max)
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290-310 HBW / 32 HRC
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PREN (typical)
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41-43
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Microstructure
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40-60% Ferrite / Austenite balanced
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Maximum Service Temperature
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315°C (600°F)
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- Technical Specifications
|
Parametr
|
Details
|
|
Strainer Type
|
Y Pattern, Threaded Ends
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Bonnet Type
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Bolted Bonnet / Screwed Bonnet with Gasket Seal
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Service Temperature
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-50°C to +315°C (F53 super duplex range)
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|
Applicable Media
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Seawater, Chloride-rich brines, Sour gas (NACE), Crude oil, Chemical process fluids, Offshore production fluids
|
|
Filtration Element
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Removable Stainless Steel Screen (Super Duplex / SS316L)
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Screen Mesh / Perforation
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Standard: 20 mesh (0.84 mm) / Optional: 40, 60, 80, 100 mesh or perforated
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Installation Position
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Horizontal or Vertical (downward flow)
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Pressure Direction
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Bidirectional (flow arrow indicates direction)
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NACE Compliance
|
NACE MR0175 / ISO 15156 for sour service
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- Material of Construction (F53 Super Duplex)
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Part Name
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Material
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Standard/Grade
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|
Ciało
|
Super Duplex Stainless Steel – F53
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ASTM A182 F53 (UNS S32750)
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|
Bonnet / Cover
|
Super Duplex Stainless Steel – F53
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ASTM A182 F53 (UNS S32750)
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Screen / Filter Element
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Super Duplex Stainless Steel / SS316L
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UNS S32750 / AISI 316L
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Gasket
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Stainless Steel + Flexible Graphite
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Spiral Wound – Super Duplex + Graphite
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Bonnet Bolts / Studs
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Super Duplex Stainless Steel
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ASTM A479 S32750 / ASTM A182 F53
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Bonnet Nuts
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Super Duplex Stainless Steel
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ASTM A479 S32750
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Drain / Blowdown Plug
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Super Duplex Stainless Steel
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ASTM A182 F53
|
|
Nameplate
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Stainless Steel
|
SS304 / SS316
|
- Main Dimensions & Connection Details
*Note: Dimensions for 3/4″ Class 150 Threaded Y Strainer with NPT Female ends. Based on MSS SP-118 and industry standards .*
5.1 End-to-End Dimensions (Face-to-Face – NPT Female)
|
Rozmiar
|
Pressure Class
|
L (mm)
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L (in)
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H (mm)
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H (in)
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Weight (kg)
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Weight (lbs)
|
|
3/4″
|
150LB
|
80-100
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3.15-3.94
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65-85
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2.56-3.35
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~1.5-2.5
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~3.3-5.5
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Note: Dimensions are manufacturer dependent. Consult manufacturer for certified drawings.
5.2 NPT Female Thread Details (Per ASME B1.20.1)
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Parametr
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3/4″ NPT-F
|
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Thread Size
|
3/4″ NPT Female
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Thread Type
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Tapered Pipe Thread (National Pipe Taper)
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Threads per Inch (TPI)
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14
|
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Thread Engagement Length (Min)
|
14.0 mm (0.55 in)
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Pipe Thread Depth
|
Standard NPT thread depth
|
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Sealing Method
|
Thread sealant or PTFE tape required during installation
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5.3 Screen Details
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Parametr
|
Standard Value
|
|
Screen Material
|
Super Duplex S32750 / SS316L
|
|
Mesh Size (Standard)
|
20 mesh (0.84 mm openings)
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|
Perforation Size
|
0.8 mm – 1.6 mm (optional)
|
|
Open Area Ratio
|
> 50% of pipe cross-section
|
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Screen Removal
|
Removable through bonnet opening
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- Pressure-Temperature Rating (ASME B16.34 / Class 150)
*Material Group: Super Duplex Stainless Steel (F53/UNS S32750)*
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Temperature (°C)
|
Working Pressure (bar)
|
Working Pressure (psi)
|
Notatki
|
|
-50 to 38
|
19.6
|
285
|
Maximum Rating (Class 150)
|
|
50
|
19.2
|
278
|
|
|
100
|
17.7
|
257
|
|
|
150
|
16.1
|
234
|
|
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200
|
14.4
|
209
|
|
|
250
|
12.8
|
186
|
|
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315
|
~10.0
|
~145
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Max temp per F53 limits
|
Note: F53 super duplex has excellent retention of strength at elevated temperatures within the Class 150 envelope.
- Test Pressure (API 598)
|
Test Type
|
Medium
|
Pressure (bar)
|
Pressure (psi)
|
Acceptance Criteria
|
|
Shell Test (Hydrostatic)
|
Water
|
29.4
|
426
|
1.5 x 38°C Rating (no visible leakage)
|
|
Seat / Screen Test
|
Air / N2
|
5.5 – 7.0
|
80 – 100
|
Per API 598
|
|
Gasket Seal Test
|
Air / N2
|
5.5
|
80
|
No visible leakage
|
|
Corrosion Test (Optional)
|
Per ASTM A923
|
—
|
—
|
Ferric chloride at 50°C
|
- Flow Characteristics & Pressure Drop
|
Parametr
|
Value
|
|
Flow Coefficient Cv (approx)
|
~9 – 11 (typical for 3/4″ threaded Y strainer)
|
|
Pressure Drop
|
Minimal when clean (< 0.2 bar at rated flow)
|
|
Screen Open Area
|
2-3 times pipe cross-sectional area
|
|
Recommended Flow Velocity
|
Water: < 2.5 m/s, Gas: < 30 m/s
|
- F53 Super Duplex Advantages for This Strainer
|
Feature
|
Benefit
|
|
High PREN (≥40)
|
Superior resistance to pitting and crevice corrosion in chloride environments
|
|
High Yield Strength (550 MPa)
|
Allows thinner walls or higher safety margins
|
|
NACE MR0175 Compliance
|
Suitable for sour service (H₂S environments)
|
|
Excellent Seawater Resistance
|
Critical pitting temperature 55-70°C vs 35-45°C for 2205
|
|
Bidirectional Strength
|
Balanced duplex microstructure provides strength and toughness
|
|
Long Service Life
|
Reduced corrosion rates in aggressive media
|
- Features & Applications
- Key Features:
- Super Duplex F53 Construction: ASTM A182 F53 (UNS S32750) provides exceptional corrosion resistance in seawater, chlorides, and sour service environments .
- NPT Female Connections: Tapered pipe threads per ASME B1.20.1 for direct connection to threaded piping systems .
- PREN ≥ 40: Pitting Resistance Equivalent ensures superior performance in highly corrosive conditions .
- NACE MR0175 Compliant: Certified for sour (H₂S) oil and gas service .
- Y Pattern Design: Compact Y-shaped body minimizes pressure drop while providing effective debris removal.
- Removable Screen: Easy maintenance without removing strainer from pipeline.
- Bolted Bonnet: Secure seal design with high-temperature gasket (graphite) for reliable operation.
- High Strength: Yield strength 550 MPa – significantly higher than 316/316L stainless steel .
- Equipment Protection: Protects downstream pumps, valves, flow meters, and instrumentation.
- Versatile Installation: Horizontal or vertical (downward flow) installation.
- Main Applications:
- Offshore Oil & Gas: Seawater injection systems, produced water filtration, subsea manifolds .
- Desalination Plants: Brine handling, reverse osmosis pretreatment .
- Chemical Processing: Hot chloride brines, ferric chloride, aggressive chemical services .
- Sour Gas Processing: NACE MR0175 environments with H₂S .
- Marine Systems: Seawater cooling, ballast water treatment .
- Power Generation: FGD systems, cooling water headers .
- Subsea Production: Wellhead flanges, manifold fittings .
- Laboratory & Pilot Plants: Small bore corrosive fluid handling .
- Comparison: F53 vs Standard Stainless Steels
|
Property
|
F53 (Super Duplex)
|
316/316L (Austenitic)
|
F51/2205 (Duplex)
|
|
PREN
|
41-43
|
24-26
|
34-36
|
|
Yield Strength (min)
|
550 MPa
|
210 MPa
|
450 MPa
|
|
Critical Pitting Temp
|
55-70°C
|
15-20°C
|
35-45°C
|
|
Seawater Service
|
Up to 50°C
|
Ambient only
|
Ambient only
|
|
Relative Cost
|
High
|
Baseline
|
Moderate
|
- Installation Guidelines for NPT Connections
- Thread Sealant: Apply PTFE tape or thread sealant to male pipe threads before installation.
- Do Not Over-Tighten: Excessive torque can crack the female threads or distort the body.
- Wrench Flats: Use wrench flats on valve body for installation support.
- Kierunek przepływu: Arrow on body must align with flow direction.
- Positioning: Ensure bonnet/cover is accessible for screen cleaning.
- Support: Heavy piping may require additional support to avoid strain on threads.
- Ordering Information
Please specify when ordering:
- Valve size: 3/4″ (DN20)
- Pressure class: 150LB
- Body material: ASTM A182 F53 (Super Duplex / UNS S32750)
- End connections: NPT Female (NPT-F)
- Screen material: Super Duplex / SS316L
- Screen type: Mesh (specify mesh size) / Perforated (specify hole size)
- Standard mesh: 20 mesh (default)
- Bonnet type: Bolted / Screwed
- Special requirements: NACE MR0175 certification, PMI testing, ferrite content verification
- Certifications: Material Test Reports (EN 10204 3.1/3.2), NACE certificates
*Disclaimer: The above data is prepared based on common industry standards (ASME B16.34, API 598, ASTM A182, MSS SP-118) for F53 super duplex Y strainers with NPT female connections . F53 (UNS S32750) is a premium super duplex stainless steel requiring specialized welding and handling procedures . NPT threads provide a reliable tapered pipe thread seal when properly installed with appropriate sealant. Specific dimensions may vary by manufacturer. The final technical agreement and certified drawings shall prevail.*
GWARANCJA:
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