8″-300LB-RF Electric-hydraulic V-port Control Ball Valve
Description
TECHNICAL DATA SHEET
8″-300LB-RF Electric-hydraulic V-port Control Ball Valve
1. Product Overview
The electric-hydraulic V-port control ball valve is an 8-inch (DN200), Class 300, flanged control ball valve, incorporating a V-port ball and an electro-hydraulic actuator for precise flow regulation in industrial processes. The V-port ball features specially shaped V-notches that provide a shearing action when rotating against the seat, capable of cutting fibrous materials and preventing clogging. It is particularly suitable for automatic control of suspensions containing fibrous matter or fine solid particles.
2. Model Description
| Item | Description |
|---|---|
| Model | EHA-VTS-8-300-CTRL |
| Nominal size | 8″ (DN200) |
| Pressure rating | 300LB (Class 300 / PN50) |
| End connection | RF (Raised Face flange) |
| Valve type | V-port control ball valve |
| Actuation | Electric-hydraulic actuator |
3. Valve Technical Parameters
| Parameter | Specification |
|---|---|
| Valve design | Three-piece, V-port, trunnion mounted ball valve |
| Nominal size | 8″ (DN200) |
| Pressure rating | ASME B16.34 Class 300LB |
| Temperature range | -29°C to +425°C |
| End connection | ASME B16.5 RF flanged |
| Face-to-face dimension | 622 mm (ASME B16.10) |
| Flow coefficient Cv | 890 (full open) |
| Flow characteristic | Approx. equal percentage |
| Rangeability | 100:1 |
| Leakage class | ANSI/FCI 70-2 Class IV |
| Seat type | Metal hard seat (Stellite No.6 hardfacing, HRC 58-62) |
| V-port angle | 90° (60° high ΔP optional) |
| Body material | ASTM A216 Gr. WCB cast steel |
| Blowout-proof stem | Yes |
| Double block & bleed (DBB) | API 6D Sec 6.3 certified |
| Fire safety | API 607 fire safe |
| Weight (complete assembly) | 420 kg |
4. Electric-hydraulic Actuator Technical Parameters
| Parameter | Specification |
|---|---|
| Actuator model | EHA-6500-DUAL |
| Drive type | Electric-hydraulic double-acting (auto control + manual override) |
| Control torque | 6,500 N·m |
| Control signal | 4-20mA + HART® protocol |
| Position feedback | 0.1% resolution encoder |
| Control accuracy | ±0.5% FS |
| Repeatability | ±0.15% |
| Fail-safe mode | Spring return (FO/FC/FL optional) |
| Stroke time | 8-25 seconds (adjustable) |
| SIL certification | SIL 2 (IEC 61508) |
| Manual override | Integrated hand pump (35:1 gear ratio, max operating force 350 N) |
| Hydraulic system pressure | 50-100 bar |
| Hydraulic fluid type | ISO VG 32 |
| Positioner accuracy | ±0.25° |
| Power supply | 480V AC, 3-phase, ±10% |
| Enclosure protection | IP67 / NEMA 4X |
| Explosion-proof certification | Optional |
| Enclosure material | Cast aluminum / cast iron |
| Ambient temperature | -25°C to +55°C |
5. Key Dimensions
| Dimension | Value |
|---|---|
| Flange outside diameter | 495 mm |
| Bolt circle diameter | 432 mm |
| Bolt quantity & size | 8 × 1″ |
| Actuator height | 810 mm |
| Valve overall length | 622 mm |
| V-port alignment tolerance | ±0.25° |
6. Inspection & Testing
| Test | Standard / Requirement |
|---|---|
| Shell test | API 598 |
| Seat leakage test | API 598 |
| 50-cycle endurance test | Performed |
| Helium leak test | Performed |
| Fugitive emissions | ISO 15848-B |
| PED certification | Category II |
| NACE option | MR0175 (optional) |
| Fire test | API 607 / API 6FA |
7. Key Features
-
Precise control – Approximately equal percentage characteristic, rangeability 100:1, control accuracy ±0.5% FS.
-
Powerful shearing action – V-notch and metal seat cut fibrous materials, self-cleaning.
-
Electric-hydraulic actuation – Combines electric precision with hydraulic torque density; fail-safe spring return.
-
Metal hard seat – Stellite No.6 hardfacing (HRC 58-62), wear and high temperature resistant.
-
High flow capacity – Cv 890, low pressure drop.
-
Fire safe design – API 607 certified, blowout-proof stem, DBB function.
-
Manual override – Integrated hand pump for emergency manual operation.
8. Applications
| Industry | Typical media |
|---|---|
| Petrochemical | Crude oil, refined products, chemicals |
| Pulp & paper | Pulp, black liquor, white water |
| Power generation | Boiler feedwater, steam, cooling water |
| Metallurgy | Slurry, dust suspensions |
| Food & pharmaceutical | Pastes, fluid food products |
| Water treatment | Sewage, sludge |
9. Accessories & Options
-
Position transmitter
-
Limit switches
-
Insulation jacket
-
NACE MR0175 certification
-
Explosion-proof actuator
-
60° V-port (for high ΔP)
10. Delivery & Warranty
| Item | Description |
|---|---|
| Standard delivery scope | Valve body, electric-hydraulic actuator, API 598 test report, IOM manual |
| Warranty period | 24 months |
