New England Steam Turbine Corp.
NESTCO
| Power/Speed Range (17H) | 1260 HP (940 Kw) @ 6300 RPM Max. |
| Power/Speed Range (17V) | 700 HP (522 Kw) @ 4000 RPM Max. |
| Inlet Pressure | 700 psig (49Kg/cm2) Max. |
| Inlet Temperature | 825 Deg F (440 Deg C) Max. |
| Exhaust Pressure | 175 psig (12.3 Kg/cm2) Max. |
| Inlet Diameter | 3.0 inches (CI 250 lb FF/STL 600 lb RF) |
| Exhaust Diameter | 6.0 inches (CI 250 lb FF/STL 300 lb RF) |
| Hand Valves | 6 Max. |
| Shaft Ext. Dia. | 2.125 inches |
| Weight | 1750 lbs (794.5 Kg) Cast Iron, 1850 lbs (839.9 Kg) Cast Steel |
Material Specifications per Unit Class
| Class |
Operating Conditions |
Inlet Valve Body | Inlet Casing | Exhaust Casing |
|
1 |
275 psig, 500 Deg F, 150 psig | Cast Iron CL 40 | Cast Iron CL 40 | Cast Iron CL 40 |
|
2 |
700 psig, 775 Deg F, 175 psig | Cast Steel WCB | Cast Steel WCB | Cast Steel WCB |
|
5 |
700 psig, 825 Deg F, 175 psig | Cast Steel WC6 | Cast Steel WC6 | Cast Steel WC6 |
Material Specifications: Components
| Nozzle Plate | 416 Stainless Steel |
| Valve Cage | 416 Stainless Steel |
| Valve Plug | 17-4 Stainless Steel |
| Strainer Screen | 300 Series Stainless Steel |
| Clapper Trip Valve | 416 Stainless Steel |
| Seat Trip Valve | 416 Stainless Steel |
| Turbine Shaft | C1144 Stress-proof Carbon Steel |
| Rotor | 4140 Carbon Steel |
| Blading | 17-4 Stainless Steel |
| Steam, Gland Seal | 300 Series Stainless Steel, Carbon Rings, Inconel Garter Springs |
| Bearing Housing | Cast Iron CL40, with provisions for Water Cooling |
| Bearing Oil Seals | Bronze |
| Bearings | Deep Groove Ball type, 50,000 Hour Life |
| Speed Control, Governor | Woodward TG 13 |
