30″ 150LB U-section Double Flange Butterfly Valve
Description
TECHNICAL DATA SHEET
MODEL: SVD34A1X
I. GENERAL SPECIFICATIONS
| Parameter | Specification |
|---|---|
| Valve Type | Double Flanged Butterfly Valve |
| Body Design | U-Section Profile (Structural Optimized) |
| Size | 30″ (DN750) |
| Pressure Rating | ASME Class 150 (PN25) |
| Design Standard | API 609 / ISO 10631 / EN 593 |
| Seat Type | Resilient Seated (Soft Seal) |
| Actuator Mounting | ISO 5211 F14 Pad (Ready for Electric Actuator) |
| Flow Direction | Bi-directional |
II. MATERIALS OF CONSTRUCTION
| Component | Material Standard | Details |
|---|---|---|
| Body | ASTM A216 WCB | U-Section Structural Design |
| Disc | ASTM A351 CF8M | 316 Stainless Steel |
| Stem | ASTM A479 Type 316 | 316SS, Full Diameter |
| Seat | NBR (Nitrile Rubber) | Replaceable Liner |
| Bushings | Self-Lubricating Bronze | Low Friction |
III. PERFORMANCE DATA
| Parameter | Value | Standard |
|---|---|---|
| Max. Working Pressure | 19.6 bar @ 38°C | ASME B16.34 |
| Temperature Range | -20°C to +82°C | (NBR seat) |
| Leakage Class | ISO 5208 Rate A (Bubble-tight) | Resilient Seat |
| Face-to-Face Dimension | 292 mm | EN 558 Series 52 |
| End Connections | ASME B16.47 Series B Class 150 RF | Raised Face Flanges |
IV. STRUCTURAL & OPERATIONAL FEATURES
| Feature | Technical Specification |
|---|---|
| U-Section Body | – Uniform stress distribution – 30% Weight reduction vs. standard body |
| Disc Design | Centric, Low-Torque Profile (C<sub>v</sub> = 25,000) |
| Stem System | Triple-Sealed (NBR + PTFE + Bronze Bushings) |
| Seat Retention | Dovetail Groove Design (No Bolt Loosening Risk) |
| Fire Safe Option | Metal Seat + Graphite Ring (API 607 Compliant) |
V. ACTUATOR INTERFACE
| Parameter | Specification |
|---|---|
| Mounting Standard | ISO 5211 F14 |
| Drive Shaft | 90mm Square (DIN 3337) |
| Max. Torque | 15,000 Nm |
| Position Indicator | Integrated Dual-output Shaft |
VI. TESTING & CERTIFICATION
| Test | Standard | Requirement |
|---|---|---|
| Shell Test | API 598 | 1.5x PN (30 bar) |
| Seat Test | EN 12266-1 | 1.1x PN (22 bar) Bubble-tight |
| Fugitive Emissions | ISO 15848-1 | Class BH (≤50 ppm) |
| Fire Safe Test | API 607 (Optional) | 30-min burn + seat integrity |
VII. SURFACE PROTECTION
| Component | Treatment |
|---|---|
| Body Exterior | Shot-blasted (Sa 2.5) + Epoxy Coating (250μm, RAL 7012) |
| Flange Faces | Anti-corrosion Varnish + PVC Cover |
| Internals | Passivated (316 SS Parts) |
