2″-150LB-RF Silica Sol Precision Cast Floating Ball Valve – Technical Data Sheet
Item | 仕様 |
Product Name | Floating Ball Valve, Soft Seated |
公称サイズ | 2″ (DN50) |
圧力定格 | Class 150 (PN20) |
Connection Type | Flanged, Raised Face (RF) |
Flange Standard | ASME B16.5 / ASME B16.47 Series A |
Design Standard | ASME B16.34 / API 608 / ISO 17292 |
Face-to-Face Dimension | ASME B16.10 – long pattern (178 mm / 7.01″) |
Construction | Floating ball, two‑piece or three‑piece body |
Casting Process | Silica sol precision casting – smooth surface finish (Ra ≤ 3.2 μm), tight dimensional tolerances, defect‑free |
Seat Type | Soft seated (PTFE / RTFE / PEEK) – bidirectional bubble‑tight shut‑off |
Temperature Range | -29°C ~ +180°C (depending on seat material) |
Applicable Media | Water, oil, gas, chemicals, mild corrosive media |
- Main Parts & Materials (Silica Sol Castings)
Component | Material (Standard) | Optional Material |
体 | WCB (silica sol cast) | CF8 (304 SS), CF8M (316 SS), CF3M (316L SS) |
End Caps | WCB (silica sol cast) | Same as body |
ボール | 304 SS / 316 SS (investment cast or forged) | Nickel‑plated, chromium‑plated, Stellite coated |
シート | PTFE (virgin) | RTFE (reinforced), PEEK, Devlon |
幹 | 304 SS / 316 SS | 17‑4PH, Monel |
Stem Seals | PTFE V‑ring packing | Graphite (for higher temperature) |
Gasket | PTFE | Spiral wound (SS + graphite) |
Bolting | A193 B8 / A194 8 | A193 B7 / A194 2H (for carbon steel body) |
- Dimensions & Weight (Class 150 Flanged, RF – Standard)
Dimension | mm | inch |
Face‑to‑Face (L) | 178 | 7.01 |
Flange Outer Diameter (D) | 152 | 6.00 |
Bolt Circle Diameter (K) | 120.7 | 4.75 |
Flange Thickness (C) | 19 | 0.75 |
Number of Bolt Holes | 4 | – |
Bolt Hole Diameter | 19 | 0.75 |
Overall Height (H) (valve only) | ~110 | – |
Weight (valve body only) | ~8 – 10 kg | – |
Note: Dimensions follow ASME B16.10 for short pattern; some manufacturers use longer patterns. Confirm with drawing.
- Silica Sol Casting Advantages
- Superior Surface Finish – Reduces fugitive emissions, minimizes seat wear, and ensures reliable ball‑seat contact.
- High Dimensional Accuracy – Consistent flange alignment and ball cavity dimensions, critical for automated actuation.
- Defect‑Free Structure – Almost no porosity, inclusions, or shrinkage defects compared to sand casting.
- Thin‑Wall Capability – Allows lighter weight without compromising mechanical strength.
- Performance Features
- Soft Seated Floating Ball – Bubble‑tight shut‑off in both directions (zero leakage per API 598 / ISO 5208 Rate A).
- Precision Cast Body – Smooth internal surface reduces pressure drop and extends seat life.
- Low Operating Torque – Polished ball and low‑friction PTFE seats ensure easy manual or actuated operation.
- Bidirectional Sealing – No preferred flow direction; simplifies installation.
- Fire Safe Design (Optional) – Secondary metal‑to‑metal sealing meets API 607 / ISO 10497.
- Anti‑Static Device – Available to dissipate static charge across the ball, stem, and body.
- Actuation Options
Actuator Type | Description |
Lever Handle | Standard manual operation, with locking plate in open/closed position |
Gear Operator | For higher torque or larger sizes (optional for 2″) |
Pneumatic Actuator | Double‑acting or single‑acting (spring return) for on‑off or modulating service |
Electric Actuator | For remote automated control with position feedback |
- アプリケーション
- Water treatment and distribution
- Oil and gas gathering lines
- Chemical and petrochemical process lines
- HVAC systems
- Food and beverage (with stainless steel body)
- General industrial utilities
- Testing & Compliance
Test | Standard / Requirement |
Shell Test | 1.5 × Class 150 (2.2 MPa / 319 psi) – no visible leakage |
Seat Test | 1.1 × Class 150 (1.6 MPa / 232 psi) – zero leakage (Rate A) |
Low‑Pressure Seat Test | 0.6 MPa (87 psi) – zero leakage |
Material Traceability | EN 10204 3.1 (optional) |
Marking | Per MSS SP‑25 / API 608 |
- Ordering Information
When ordering, please specify:
- Valve size: 2″
- Pressure rating: Class 150
- End connection: Flanged RF
- Body material: WCB / CF8 / CF8M
- Seat material: PTFE / RTFE / PEEK
- Operation: Lever / Gear / Pneumatic / Electric
- Special requirements: Fire safe, anti‑static, low‑emission packing, NACE MR0175, etc.
Notes:
- Silica sol casting ensures a high‑quality surface finish, making this valve suitable for critical services and automated actuation.
- For stainless steel bodies (CF8/CF8M), the same silica sol process applies, offering excellent corrosion resistance.
- Final dimensions and weights may vary slightly by manufacturer; refer to approved drawings for exact values.
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