PFA Fully Lined Floating Ball Valve
Description
TECHNICAL DATA SHEET
Fully Lined PFA Floating Ball Valve
Model: Q41PFA-16C / Q41PFA-150LB
Series: PN1.0~1.6MPa, Class 150LB
1. PRODUCT OVERVIEW
Fully lined PFA floating ball valve features high-pressure injection/molding PFA (Perfluoroalkoxy) lining applied to carbon steel or stainless steel valve body and ball surface. Designed for on-off control of highly corrosive media, widely used in chemical, pharmaceutical, petroleum refining, metallurgy, electronics, food industries and high-purity applications.
Key Features:
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Zero Leakage Seal: PFA/reinforced PTFE soft seal between ball and seat, achieving bubble-tight sealing under both low and high pressure.
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Full Corrosion Protection: PFA lining covers all wetted parts including body cavity, ball and stem channel – no metal contact with media. Resists “all strong corrosives except molten alkali metals and elemental fluorine”.
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Blow-out Proof Stem: Integrally forged ball and stem design prevents stem ejection under sudden pressure surge.
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Full Bore Design: Smooth, equal diameter flow path minimizes pressure drop and facilitates pipeline pigging/cleaning.
2. DESIGN STANDARDS & SPECIFICATIONS
| Item | Standard |
|---|---|
| Design & Manufacture | GB/T 12237, API 608 |
| Face-to-Face Dimension | GB/T 12221, ASME B16.10 |
| Flange Dimension | GB/T 9113, HG/T 20592, ASME B16.5 |
| Pressure Testing | GB/T 13927, API 598, JB/T 9092 |
| Lining Process Standard | HG/T 3704 |
3. GENERAL TECHNICAL PARAMETERS
| Parameter | Specification |
|---|---|
| Nominal Diameter (DN) | DN15 ~ DN300 (1/2″ ~ 12″) |
| Nominal Pressure (PN) | PN10 / PN16 |
| Pressure Class (Class) | 150LB |
| Temperature Range | -20℃ ~ +150℃ (PFA Lined) |
| Applicable Media | Sulfuric acid, hydrochloric acid, nitric acid, hydrofluoric acid, aqua regia, organic acids, strong alkalis, halogens, organic solvents, etc. (any concentration) |
| Leakage Rate | ISO 5208 Rate A / Zero Leakage |
| Connection Type | Wafer Type / Flanged (RF Face) |
| Operation Type | Manual (Lever/Gearbox), Pneumatic, Electric |
| Structure Type | 2-piece / 3-piece (Floating Ball, Full Bore) |
| Flow Direction | Bi-directional Sealing |
4. MAIN COMPONENT MATERIALS
| Component | Material Selection | Remarks |
|---|---|---|
| Body | HT250 / WCB / CF8 / CF8M | Pressure containing part |
| Bonnet | Same as body material | – |
| Lining Layer | PFA (Perfluoroalkoxy) | Injection/molding molded, thickness ≥3mm, pinhole-free, no stripping |
| Ball | WCB/304/316 + Fully Lined PFA | Integral stem design |
| Stem | 2Cr13 / 304 / 316 | Anti-static design (optional) |
| Seat/Sealing Ring | Reinforced PTFE / PFA | Flexible compensation structure |
| Packing | V-type PTFE / Chevron PTFE | Self-lubricating, zero leakage |
| Gasket | PTFE / PFA | – |
| Handle/Gearbox | Cast Steel / Ductile Iron | With locking device |
5. DIMENSIONS & CONNECTIONS (PN16 / 150LB)
Unit: mm
| DN | L | D | D1 | D2 | b | f | Z-Φd | H (approx) | Weight (Kg) |
|---|---|---|---|---|---|---|---|---|---|
| 15 | 130 | 95 | 65 | 45 | 14 | 3 | 4-Φ14 | 95 | 4.0 |
| 20 | 140 | 105 | 75 | 55 | 14 | 3 | 4-Φ14 | 100 | 4.5 |
| 25 | 150 | 115 | 85 | 65 | 16 | 3 | 4-Φ14 | 115 | 5.5 |
| 32 | 165 | 135 | 100 | 78 | 18 | 3 | 4-Φ18 | 125 | 7.0 |
| 40 | 180 | 145 | 110 | 85 | 18 | 3 | 4-Φ18 | 135 | 9.0 |
| 50 | 200 | 160 | 125 | 100 | 20 | 3.5 | 4-Φ18 | 140 | 12.0 |
| 65 | 220 | 180 | 145 | 120 | 20 | 3.5 | 4-Φ18 | 155 | 17.0 |
| 80 | 250 | 195 | 160 | 135 | 22 | 4 | 8-Φ18 | 205 | 25.0 |
| 100 | 280 | 215 | 180 | 155 | 24 | 4 | 8-Φ18 | 230 | 35.0 |
| 125 | 320 | 245 | 210 | 185 | 26 | 4 | 8-Φ18 | 255 | 50.0 |
| 150 | 360 | 280 | 240 | 210 | 28 | 4 | 8-Φ23 | 285 | 70.0 |
| 200 | 400 | 335 | 295 | 265 | 30 | 5 | 12-Φ23 | 340 | 120.0 |
| 250 | 450 | 405 | 355 | 320 | 34 | 5 | 12-Φ26 | 400 | 180.0 |
| 300 | 500 | 460 | 410 | 375 | 36 | 5 | 12-Φ26 | 450 | 240.0 |
Note: For ASME B16.5 Class 150LB dimensions, replace flange dimensions accordingly; L dimension refer to ASME B16.10.
6. PERFORMANCE CURVES & TORQUE DATA
6.1 Pressure-Temperature Rating (PFA Lined)
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Maximum Operating Temperature: 150℃ (continuous service)
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Do not exceed 150℃ for prolonged periods to prevent PFA softening/deformation.
6.2 Operating Torque (Reference @ 25℃ Water)
| DN | 25 | 40 | 50 | 80 | 100 | 150 | 200 |
|---|---|---|---|---|---|---|---|
| Torque (N·m) | 10 | 20 | 25 | 85 | 120 | 320 | 700 |
*Note: For media with high specific gravity, crystalline/corrosive nature or containing particles, apply safety factor 1.2~1.5.*
7. SELECTION & ORDERING INFORMATION
To ensure optimal service life under severe conditions, please specify following parameters when ordering:
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Model: e.g. Q41PFA-16C (Carbon Steel Body), Q41PFA-16P (SS304 Body)
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Size & Pressure: DN50, PN16 or 2″, 150LB
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Connection Standard: GB, ASME, JIS, etc.
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Media & Temperature: Specific chemical name, concentration, operating temperature
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Special Requirements: Anti-static device, locking device, extended stem (for insulation), pneumatic/electric actuator brand
