3/4″-150LB F53 Y Pattern Strainer

Size 3/4 inch (DN20)
Pressure Class Class 150 LB (PN20 / 290 PSI)
Body Material Super Duplex Stainless Steel – ASTM A182 F53 (UNS S32750)
Manufacturing Process Investment Casting / Close Die Forged Steel
Design Standard ASME B16.34 / BS 5352 / MSS SP-118
End Connection Standard ASME B1.20.1 (NPT Female)
Face to Face Standard Manufacturer Standard / MSS SP-118

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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

Parameter	Standard/Specification
مقاس	3/4 inch (DN20)
Pressure Class	Class 150 LB (PN20 / 290 PSI)
مادة الجسم	Super Duplex Stainless Steel – ASTM A182 F53 (UNS S32750)
Manufacturing Process	Investment Casting / Close Die Forged Steel
Design Standard	ASME B16.34 / BS 5352 / MSS SP-118
End Connection Standard	ASME B1.20.1 (NPT Female)
Face to Face Standard	Manufacturer Standard / MSS SP-118
Test & Inspection Std.	API 598 / ISO 5208
Screen / Basket Design	Perforated or Mesh type, removable for cleaning

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 %)

Element	Cr	Ni	Mo	N	C	Mn	Si	P	S	Cu
F53	24.0-26.0	6.0-8.0	3.0-5.0	0.24-0.32	0.03 max	1.20 max	0.80 max	0.035 max	0.020 max	0.50 max

2.2 Mechanical Properties

Property	Value
Tensile Strength (min)	795-800 MPa (116 ksi)
Yield Strength (0.2% min)	550 MPa (80 ksi)
Elongation (min)	15-25%
Hardness (max)	290-310 HBW / 32 HRC
PREN (typical)	41-43
Microstructure	40-60% Ferrite / Austenite balanced
Maximum Service Temperature	315°C (600°F)

Technical Specifications

المعلمة	Details
Strainer Type	Y Pattern, Threaded Ends
Bonnet Type	Bolted Bonnet / Screwed Bonnet with Gasket Seal
Service Temperature	-50°C to +315°C (F53 super duplex range)
Applicable Media	Seawater, Chloride-rich brines, Sour gas (NACE), Crude oil, Chemical process fluids, Offshore production fluids
Filtration Element	Removable Stainless Steel Screen (Super Duplex / SS316L)
Screen Mesh / Perforation	Standard: 20 mesh (0.84 mm) / Optional: 40, 60, 80, 100 mesh or perforated
Installation Position	Horizontal or Vertical (downward flow)
Pressure Direction	Bidirectional (flow arrow indicates direction)
NACE Compliance	NACE MR0175 / ISO 15156 for sour service

Material of Construction (F53 Super Duplex)

Part Name	مادة	Standard/Grade
جسم	Super Duplex Stainless Steel – F53	ASTM A182 F53 (UNS S32750)
Bonnet / Cover	Super Duplex Stainless Steel – F53	ASTM A182 F53 (UNS S32750)
Screen / Filter Element	Super Duplex Stainless Steel / SS316L	UNS S32750 / AISI 316L
Gasket	Stainless Steel + Flexible Graphite	Spiral Wound – Super Duplex + Graphite
Bonnet Bolts / Studs	Super Duplex Stainless Steel	ASTM A479 S32750 / ASTM A182 F53
Bonnet Nuts	Super Duplex Stainless Steel	ASTM A479 S32750
Drain / Blowdown Plug	Super Duplex Stainless Steel	ASTM A182 F53
Nameplate	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)

مقاس	Pressure Class	L (mm)	L (in)	H (mm)	H (in)	Weight (kg)	Weight (lbs)
3/4″	150LB	80-100	3.15-3.94	65-85	2.56-3.35	~1.5-2.5	~3.3-5.5

Note: Dimensions are manufacturer dependent. Consult manufacturer for certified drawings.

5.2 NPT Female Thread Details (Per ASME B1.20.1)

المعلمة	3/4″ NPT-F
Thread Size	3/4″ NPT Female
Thread Type	Tapered Pipe Thread (National Pipe Taper)
Threads per Inch (TPI)	14
Thread Engagement Length (Min)	14.0 mm (0.55 in)
Pipe Thread Depth	Standard NPT thread depth
Sealing Method	Thread sealant or PTFE tape required during installation

5.3 Screen Details

المعلمة	Standard Value
Screen Material	Super Duplex S32750 / SS316L
Mesh Size (Standard)	20 mesh (0.84 mm openings)
Perforation Size	0.8 mm – 1.6 mm (optional)
Open Area Ratio	> 50% of pipe cross-section
Screen Removal	Removable through bonnet opening

Pressure-Temperature Rating (ASME B16.34 / Class 150)

*Material Group: Super Duplex Stainless Steel (F53/UNS S32750)*

Temperature (°C)	Working Pressure (bar)	Working Pressure (psi)	ملحوظات
-50 to 38	19.6	285	Maximum Rating (Class 150)
50	19.2	278
100	17.7	257
150	16.1	234
200	14.4	209
250	12.8	186
315	~10.0	~145	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

المعلمة	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.
اتجاه التدفق: 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.*

ضمان:

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