B148 C95800 Aluminum Bronze Lugged Butterfly Valve
Description
Technical Datasheet: Wafer / Lug Type Butterfly Valve
(Body/Disc: C95800 / Stem: Monel K400 / Seat: Viton)
Project Name: ____________________ Item No.: ____________________
Tag No.: ____________________ Quantity: ____________________
1. General Information
| Item | Standard Configuration | User Specification / Remarks |
|---|---|---|
| Valve Type | Center Line Butterfly Valve (Concentric / Resilient Seated) | |
| Connection Type | Wafer Type (Fits between flanges) / Lug Type (Threaded inserts) | |
| Body Material | C95800 (Nickel Aluminum Bronze / ASTM B148) | High strength, excellent corrosion resistance in seawater |
| Disc Material | C95800 (Nickel Aluminum Bronze) | |
| Stem Material | Monel K400 (UNS N04400) | Excellent corrosion resistance in saline and acidic environments |
| Seat Material | Viton (FKM) | Fluoroelastomer – Excellent chemical & heat resistance |
| Nominal Size | 2″ – 24″ (DN50 – DN600) | |
| Pressure Rating | Class 150 / PN10 / PN16 | |
| Design Standard | API 609 / MSS SP-67 / ISO 5752 | |
| Face-to-Face | API 609 Short Pattern / ISO 5752 Series 20 | |
| Flange Drilling | ASME B16.5 / ASME B16.42 / EN 1092-2 | |
| Inspection & Test | API 598 / ISO 5208 | |
| Top Flange | ISO 5211 (For direct actuator mounting) |
2. Bill of Materials (Main Components)
| No. | Part Name | Material | Remarks |
|---|---|---|---|
| 1 | Body | C95800 (Nickel Aluminum Bronze) | ASTM B148 / AB2 |
| 2 | Disc | C95800 (Nickel Aluminum Bronze) | Polished finish |
| 3 | Stem | Monel K400 (UNS N04400) | High strength, anti-corrosion |
| 4 | Seat | Viton (FKM) | Bonded / Lined type – Fluoroelastomer |
| 5 | O-Ring / Backup Ring | Viton (FKM) / PTFE | Stem sealing |
| 6 | Bushings / Bearings | PTFE / Bronze backed PTFE | Stem support |
| 7 | Thrust Washer | PTFE / Bronze | |
| 8 | Handle / Gearbox | Ductile Iron / Steel (Epoxy coated) | Optional |
| 9 | Fasteners (for Lug) | Stainless Steel (304 / 316) / Monel | For lug type only |
3. Technical Parameters & Performance
| Item | Specification |
|---|---|
| Medium | Seawater, Brine, Acids, Alkalis, Hydrocarbons, Oils, Fuels, Chemicals (____________________) |
| Operating Temp. | -20°C ~ +200°C (Viton Seat) |
| Max Operating Pressure | Up to 200 psi / 16 bar (De-rate at high temps) |
| Leakage Rate | ISO 5208 Rate A (Bubble tight, zero leakage) |
| Flow Direction | Bidirectional / Unidirectional (Lug type recommended for dead-end service) |
| Seat Type | Resilient (Flexible liner) – Replaceable / Bonded |
| Disc Type | Concentric (Center Line) |
| Stem Sealing | O-Ring + Blow-out proof design |
4. Test Pressure (Reference: Class 150 / PN16)
| Test Type | Pressure | Standard |
|---|---|---|
| Shell (Hydrostatic) | 1.5 x Rated Pressure | API 598 / ISO 5208 |
| Seat (Hydrostatic) | 1.1 x Rated Pressure | API 598 / ISO 5208 |
| Low Pressure Seat (Air) | 80 psi / 0.6 MPa | Bubble tight |
| *(Note: For Class 150, typical shell test is 425 psi / 2.9 MPa)* |
5. Dimensions & Weight (Reference: Wafer Type, API 609 Short Pattern)
| NPS | DN (mm) | L (Face-to-Face) mm | H (Open) mm (approx) | Weight (kg) approx |
|---|---|---|---|---|
| 2″ | 50 | 43 | 85 | 3 |
| 4″ | 100 | 52 | 120 | 6 |
| 6″ | 150 | 56 | 150 | 10 |
| 8″ | 200 | 60 | 190 | 16 |
| 10″ | 250 | 68 | 230 | 25 |
| 12″ | 300 | 78 | 270 | 38 |
| (Note: For Lug type, weight is slightly higher. For larger sizes or exact dimensions, refer to certified GA drawing.) |
6. Special Requirements / Options
-
Operation: Lever / Gearbox / Pneumatic Actuator / Electric Actuator
-
Locking Device: Yes / No
-
Position Indicator: Yes / No
-
Lug Type Tapped Lugs: For dead-end service
-
Stem Extension: Yes / No (For buried service)
-
Test Certificate: EN 10204 3.1
-
Coating: No coating required (C95800 is corrosion resistant)
-
Special Cleaning: For Oxygen / Food / Pharmaceutical service
Material Notes:
-
C95800 (Nickel Aluminum Bronze): High strength alloy with excellent corrosion resistance in seawater, brackish water, and many chemical environments. Commonly used in marine, offshore, and desalination applications.
-
Monel K400 (UNS N04400): Nickel-copper alloy with excellent resistance to seawater, hydrofluoric acid, and alkalis. Provides superior stem strength and corrosion resistance.
-
Viton (FKM): Fluoroelastomer with excellent resistance to high temperatures, ozone, oils, fuels, and many chemicals. Suitable for temperatures up to 200°C. Not recommended for ketones, esters, or brake fluids.
Note: This datasheet is prepared for a Center Line Butterfly Valve with high-performance marine-grade materials and Viton seat. Ensure compatibility of Viton with specific service media.
