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Product Name Stainless Steel Flanged Floating Ball Valve
Nominal Size 3″ (DN80)
Pressure Rating Class 150LB
Body Material 304 Stainless Steel (ASTM A351 CF8 / SS304)
End Connection Flanged
Construction Floating ball, two-piece / side-entry
Bore Type Full bore (full port)
Seat Seal Type Soft seated (PTFE / RPTFE / PPL)
Fire Safe Design Optional, to API 607



TECHNICAL DATA SHEET
3″-150LB-RF Heavy Pattern 304SS Floating Ball Valve
Item | Description |
Product Name | Stainless Steel Flanged Floating Ball Valve |
Nominal Size | 3″ (DN80) |
Pressure Rating | Class 150LB |
Body Material | 304 Stainless Steel (ASTM A351 CF8 / SS304) |
End Connection | Flanged |
Construction | Floating ball, two-piece / side-entry |
Bore Type | Full bore (full port) |
Seat Seal Type | Soft seated (PTFE / RPTFE / PPL) |
Fire Safe Design | Optional, to API 607 |
This 3-inch, Class 150LB stainless steel floating ball valve is of heavy pattern construction. The body is made of 304 stainless steel (CF8). Flange ends conform to ASME B16.5. Suitable for water, oil, gas and mildly corrosive media for on-off service.
Item | Standard |
Design & Manufacture | ASME B16.34, API 6D, API 608 |
Face-to-Face Dimensions | ASME B16.10 |
Flanged Ends | ASME B16.5 |
Butt Weld Ends | ASME B16.25 |
Inspection & Testing | API 598 |
Wall Thickness | ASME B16.34, GB12224 |
Fire Test (optional) | API 607 |
Anti-static | API 608 |
Mounting Pad | ISO 5211 |
Parameter | Value |
Nominal Size (NPS) | 3″ (DN80) |
Pressure Class | 150LB |
Suitable Media | Water, oil, gas, mild corrosive fluids |
Temperature Range | -20°C ~ +180°C (PTFE/RPTFE) |
Max. Temperature (PPL seats) | -20°C ~ +300°C |
Max. Working Pressure (ambient) | 1.96 MPa (285 psi) |
Hydrostatic Shell Test Pressure | 1.5 × rating (~2.94 MPa) |
Hydrostatic Seat Test Pressure | 1.1 × rating |
Low Emission Test (optional) | ISO 15848 |
Actuation | Manual (lever/gear) / pneumatic / electric |
Flow Direction | Bidirectional |
Operation | 90° quarter-turn |
Temperature (°C) | Max. Working Pressure (MPa) |
-29 ~ 38 | 1.96 |
93 | 1.78 |
121 | 1.62 |
149 | 1.50 |
177 | 1.42 |
204 | 1.35 |
232 | 1.30 |
260 | 1.26 |
288 | 1.22 |
316 | 1.18 |
343 | 1.15 |
371 | 1.12 |
399 | 1.09 |
427 | 1.06 |
Note: Ratings per ASME B16.34 for Material Group 2.1 (304 SS) for flanged end valves.
5.1 Face-to-Face & Overall Dimensions (mm)
DN | NPS | L (Face-to-Face) | D (Flange OD) | C (Flange Thk.) | G (RF Dia.) | t (RF Height) | H (Height) | W (Lever Length) | n-φ (Bolt holes) |
80 | 3″ | 203 | 190 | 19 | 127 | 1.6 | 196 | 350 | 4-φ19 |
Dimensions per ASME B16.10 and B16.5.
5.2 Flange Connection Details (ASME B16.5 Class 150 RF)
Parameter | Value (mm) |
Flange OD (D) | 190.5 |
Bolt circle dia. (D1) | 152.4 |
Bolt hole dia. (d) | 19.1 (3/4″) |
No. of bolt holes | 4 |
Flange thickness (C) | 23.8 (including RF) |
Sealing face | RF (raised face, height 1.6 mm) |
Bolt size | 5/8″ (M16) |
5.3 Recommended Bolt Torque
Bolt Size | Recommended Torque (N·m) |
5/8″ (M16) ASTM A193 Gr.B7 | 120 ~ 140 |
Note: Torque values are reference only. Adjust according to gasket type and service conditions.
No. | Part Name | ASTM Material | GB Material | Remarks |
1 | Body | A351 CF8 | 0Cr18Ni9 / 304 | Investment cast |
2 | Bonnet | A351 CF8 | 0Cr18Ni9 / 304 | Investment cast |
3 | Ball | 304 / 2Cr13 (plated) | 304 | Full bore |
4 | Seat Ring | PTFE / RPTFE / PPL | PTFE / RPTFE / PPL | Self-lubricating |
5 | Stem | SS304 | 2Cr13 / 304 | Blow-out proof |
6 | Stem Packing | PTFE / Graphite | PTFE / Flexible graphite | V-ring set |
7 | Body Gasket | PTFE / 304+Graphite spiral | PTFE / Spiral wound | |
8 | Bolts / Studs | A193 Gr.B8 (304) | 1Cr18Ni9Ti | Corrosion resistant |
9 | Nuts | A194 Gr.8 (304) | 1Cr18Ni9Ti | |
10 | Lever (manual) | Carbon steel / SS | Q235 / 304 | Lockable optional |
11 | Gland | A351 CF8 | 0Cr18Ni9 / 304 | |
12 | Anti-static device | SS / spring | SS304 / phosphor bronze | Per API 608 |
13 | Fire-safe seal (opt.) | Graphite | Expanded graphite | Per API 607 |
Feature | Description |
Floating ball design | Medium pressure pushes ball against downstream seat for tight shut-off |
Full bore | Minimal flow resistance, equivalent to same length of pipe |
Blow-out proof stem | Stem retained against internal pressure |
Anti-static device | Conductive path between ball and stem to prevent static buildup (API 608) |
ISO 5211 mounting pad | Direct mounting of pneumatic/electric actuators |
Fire-safe option | Graphite secondary seal to API 607 |
Seat material | PTFE/RPTFE/PPL – self-lubricating, corrosion resistant, tight sealing |
90° operation | Quick quarter-turn from fully open to fully closed |
Test | Pressure | Hold Time | Acceptance |
Shell hydrostatic | 1.5 × rating (~2.94 MPa) | ≥3 min | No leakage or visible deformation |
High pressure seat (water) | 1.1 × rating (~2.16 MPa) | ≥3 min | No visible leakage |
Low pressure seat (air) | 0.5 ~ 0.7 MPa | ≥1 min | No leakage across seat |
Anti-static test | Per API 608 | — | Resistance ≤ 10 Ω |
Optional tests:
For soft-seated floating ball valve, clean medium at ambient temperature.
Condition | Break-to-Open (N·m) | Break-to-Close (N·m) |
Ambient, no pressure (PTFE seats) | 40 ~ 50 | 40 ~ 50 |
Ambient, 1.0 MPa | 55 ~ 70 | 55 ~ 70 |
Ambient, 1.96 MPa (max rating) | 70 ~ 85 | 70 ~ 85 |
High temperature (>150°C) | +20% ~ +30% | +20% ~ +30% |
Low temperature (<0°C) | +15% ~ +25% | +15% ~ +25% |
Important: These values are for reference. For actuator sizing, multiply by a safety factor of 1.3 ~ 1.5.
NPS | Cv (typical, full port) |
3″ | 400 ~ 500 |
Note: Cv = US gal/min of 60°F water at 1 psi pressure drop. Exact value depends on ball port diameter.
Industry | Typical Media |
Petrochemical | Crude oil, refined products, natural gas, LPG |
Water treatment | Clean water, sewage, reclaimed water |
Food & beverage | Food grade media (with food grade seals) |
Pharmaceutical | Process water, drug solutions (with sanitary finish) |
General industry | Compressed air, steam, thermal oil |
Limitations for 304 SS body:
Item | Value |
Approx. net weight | 12 ~ 15 kg |
Packaging | Export wooden case / standard export packing |
Protection | Plastic flange protectors, rust preventive coating |
Please specify the following when ordering:
Manufacturer Information (to be filled)
Item | Description |
Product | 3″-150LB-RF Heavy Pattern 304SS Floating Ball Valve |
Model | Q41F-150LB Heavy Pattern |
Issue Date | April 14, 2026 |
Version | V1.0 |
Disclaimer: This technical data sheet is prepared based on ASME B16.34, API 6D, API 598 and other industry standards. Actual product parameters are subject to the nameplate and factory test report. For special service conditions, please consult the manufacturer’s engineering department.
GUATANTEE:
SAVVY VALVES is committed to delivering exceptional product quality and worry-free after-sales service. Our valves are guaranteed to provide a minimum service life of 12 months, during which we will supply all necessary spare parts and detailed maintenance instructions free of charge. Within the warranty period, if any non-human-induced damage occurs, we will replace components at no cost and provide professional technical support. After the warranty expires, customers only need to pay for the cost of spare parts, while still benefiting from discounted maintenance services. Our goal is to help clients reduce operational costs and enhance production efficiency through reliable quality and comprehensive after-sales support. Whether for technical inquiries or maintenance needs, our expert team will respond promptly to ensure your valve system maintains optimal performance at all times.
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