SS Floating Ball Valve – 3″ 150LB RF
Description
SS Floating Ball Valve – 3″ 150LB RF
Model: FBV-SS-3-150-RF
Product Description: Two-piece bolted-body, side-entry, floating ball valve with ASME B16.5 Class 150 raised face flanges. Constructed from ASTM A351 CF8M (316 stainless steel) with PTFE seats, this valve provides bubble-tight shut-off and corrosion resistance for a wide range of general industrial, chemical, and utility services.
1. Main Design Codes and Standards
| Item | Standard / Code |
|---|---|
| Valve Design | API 608, ASME B16.34, ISO 17292 |
| Face-to-Face | ASME B16.10 Short Pattern |
| Flanged Ends | ASME B16.5 Class 150, Raised Face (RF) |
| Pressure-Temperature Ratings | ASME B16.34, Material Group 2.2 (A351 CF8M) |
| Testing & Inspection | API 598, ISO 5208 |
| Fire-Safe Design (Optional) | API 607 / ISO 10497 |
| Fugitive Emissions (Optional) | ISO 15848-1 |
| Anti-Static Design | Per API 608 / ISO 17292 (≤10 Ω) |
| Blow-out Proof Stem | Internally inserted, retained by integral shoulder |
2. Main Technical Parameters
| Parameter | Specification |
|---|---|
| Nominal Size | 3″ (DN80) |
| Pressure Class | Class 150 (PN20) |
| End Connection | Flanged Raised Face, ASME B16.5 Class 150 |
| Body Construction | Two-piece bolted, side entry |
| Ball Type | Floating ball (full bore standard) |
| Seat Type | Virgin PTFE (standard) – double seat, bidirectional |
| Operation | Lever handle (lockable) |
| Flow Direction | Bi-directional, bubble-tight shut-off |
| ISO 5211 Mounting | Integral top pad for direct actuator mounting |
3. Pressure-Temperature Ratings (ASME B16.34 Group 2.2 – A351 CF8M, Class 150)
Ratings for the metal body. Actual operating limits may be further restricted by the seat material. PTFE seats are typically limited to 120°C continuous (150°C intermittent).
| Temperature (°C) | Max. Working Pressure (bar) | Approx. psi |
|---|---|---|
| -29 to 38 | 19.8 | 285 |
| 50 | 19.2 | 279 |
| 100 | 16.2 | 235 |
| 150 | 14.0 | 203 |
| 200 | 12.4 | 180 |
| 250 | 11.2 | 162 |
| 300 | 10.2 | 148 |
For continuous service above 120°C, RTFE or PEEK seats are recommended. Consult manufacturer for seat-specific P-T curves.
4. Materials of Main Parts
| No. | Part Name | Material | Remarks |
|---|---|---|---|
| 1 | Body & End Piece | ASTM A351 CF8M (316 SS) | Investment cast or sand cast, fully solution annealed |
| 2 | Ball | ASTM A276 316 | Solid 316, polished, electroless nickel plating (ENP) optional |
| 3 | Stem | ASTM A276 316 | Blow-out proof, ground and polished |
| 4 | Body Seals / Gaskets | PTFE / Graphite / Spiral Wound SS316 | Service dependent |
| 5 | Seats | Virgin PTFE | Bidirectional, self-relieving upstream seat |
| 6 | Stem Packing | PTFE V-rings | Adjustable gland |
| 7 | Stem Thrust Washer | PTFE / Filled PTFE | Low friction, long life |
| 8 | Bolting (Body & Bonnet) | ASTM A193 B8M / A194 Gr.8M | Stainless steel for corrosion resistance |
| 9 | Handle / Lever | SS304 with PVC grip | Lockable in open/closed position |
| 10 | Anti-Static Spring | SS316 | Ensures electrical continuity per API 608 |
| 11 | ISO Top Flange | Integral cast CF8M pad | Machined to ISO 5211 |
5. Dimensions & Weight – 3″ Class 150 RF (Typical)
| Parameter | Dimension (mm) | Remarks |
|---|---|---|
| Face-to-Face (L) | 203 | ASME B16.10 Short Pattern |
| Overall Height (H – Lever open) | Approx. 235 | Center line to top of lever |
| Lever Length (W) | Approx. 300 | |
| Flange Outside Diameter (D) | 190 | ASME B16.5 Class 150 RF, 3″ |
| Bore Diameter | 76 mm (3″) | Full bore |
| ISO 5211 Top Flange | F05 / F07 | For actuator mounting |
| Stem Drive | 11 mm square / Ø14 keyed | |
| Approx. Weight | 12.5 kg |
Certified drawings with exact flange drilling, raised face dimensions, and ISO flange details are available upon request.
6. Performance Testing
| Test Item | Test Medium | Test Pressure | Acceptance Criteria |
|---|---|---|---|
| Shell Hydrostatic | Water | 29.7 bar (1.5 × max. rated at 38 °C) | No visible leakage or deformation |
| High-Pressure Seat Test | Water | 21.8 bar (1.1 × max. rated) | Zero leakage (API 598 Rate A for soft seats) |
| Low-Pressure Seat Test | Air / Nitrogen | 6 bar (87 psi) | Zero bubble leakage |
| Anti-Static Test | Dry circuit | ≤ 10 Ω (Stem-to-ball, ball-to-body) | API 608 / ISO 17292 |
| Fire-Safe Test (if ordered) | – | Per API 607 | Passes fire and leakage tests |
7. Design Features
-
Floating Ball, Bidirectional Seal: The ball moves downstream under pressure, compressing against the downstream seat for a tight seal in either flow direction.
-
Self-Relieving Cavity: The upstream seat relieves excess cavity pressure automatically to the pipeline, eliminating the need for an external relief valve in most applications.
-
Anti-Blowout Stem: The stem features an integral shoulder inside the body, preventing ejection under pressure.
-
Anti-Static Device: Spring-loaded conductive elements between stem-ball and ball-body ensure static electricity dissipation.
-
Low Operating Torque: Optimized stem and seat geometry keeps breakaway torque low, allowing easy manual operation and smaller actuators.
-
Full Bore: Standard full-bore design minimizes pressure drop and allows pigging.
-
ISO 5211 Ready: The integral top flange accepts standard pneumatic or electric actuators without additional brackets.
8. Application Scope
-
Suitable Media: Water, steam (limited by seat), oils, gases, mild acids, alkalis, solvents, and many chemicals compatible with 316 stainless steel and PTFE.
-
Temperature Range: -29 °C to +120 °C continuous (PTFE seats); body rated down to -29 °C and up to +300 °C (seats are limiting factor).
-
Industries: Chemical processing, water treatment, food and beverage, pharmaceutical, general industrial, marine, HVAC.
-
Key Advantages:
-
316 stainless steel body and trim offer excellent corrosion resistance.
-
Compact, lightweight design compared to gate valves.
-
Quarter-turn quick operation with clear visual position indication.
-
Simple two-piece bolted construction facilitates inline maintenance.
-
9. Optional Configurations & Accessories
-
Body Material: ASTM A351 CF8 (304 SS) available.
-
Ball & Stem Material: 304 SS, Duplex SS, Monel, or Hastelloy on request.
-
Seat Materials: RTFE (15% glass-filled PTFE, up to 150 °C), PEEK (up to 220 °C), TFM, Devlon, metal-seated.
-
Fire-Safe Package: Graphite body seals and secondary metal seats, certified to API 607.
-
End Connections: Butt Weld, Socket Weld, or Threaded NPT/BSPP ends optional.
-
Lever Options: Extendable lever, gear operator for larger sizes or high torque.
-
Actuation: Complete assembly with pneumatic (double-acting/spring-return) or electric actuators; limit switches, solenoid valves, positioners.
-
Locking Device: Padlockable handle in open/closed position.
-
Oxygen Service Cleaning: Degreased and bagged per CGA G-4.1.
-
NACE Compliance: For sour service, NACE MR0175 / ISO 15156 certified materials upon request.
Disclaimer: This technical data sheet is for reference and selection purposes based on common industrial standards and typical floating ball valve design. All exact dimensions, ratings, and material certifications must be confirmed against the manufacturer’s certified documentation, material test reports, and approved drawings before installation or procurement.
