Gimpel® Steam Turbine Valves
Steam turbine protection valves are part of the overall rotating equipment protection system.
Dresser-Rand’s Gimpel® electro-hydraulic trip throttle valve (EHTTV) is a microprocessor-controlled trip throttle valve with a self-contained electro-hydraulic actuator. Designed to prevent the catastrophic failure of steam turbines, the EHTTV stops the flow of steam to the turbine in less than 0.3 seconds, a closing force that is 4-10 times faster than typical latch-type valves.
As a protection and safety device, Gimpel valves are designed and manufactured in accordance with rigorous industry specifications including the following:
- API 611 and 612
- ASME / ANSI B16.34 and B16.5
- NEMA SM 23/24
- CEMARK / PED Certification
- CRN
Dresser-Rand’s Gimpel steam turbine protection valves handle a wide range of applications and are in operation in petrochemical facilities and power plants around the world.
| Model | Type | Operation | Size NPS | Pressure ANSI Class | Temperature °F (limit) | Model Image |
|---|---|---|---|---|---|---|
| TMTTV - (Top Mechanism Trip Throttle Valve) | Mechanical Latch | Push-to-close | 2 - 14 (50-350) | 150 - 1,500 | 950 (510) | Click to View |
| INTTV (Inverted Trip Throttle Valve) | Mechanical Latch | Pull-to-close | 3 - 20 (80 - 500) | 150 - 1,500 | 950 (510) | Click to View |
| OOTV - Oil (hydraulic) Operated (Oil Operated Trip Valve) | Oil Operated | Pull-to-close | 3 - 24 (80 - 600) | 150 - 2,500 | 1,004 (540) | Click to View |
| OOTTV - Oil (hydraulic) Operated (Oil Operated Trip Throttle Valve) | Oil Operated | Pull-to-close | 3 - 24 (80 - 600) | 150 - 2,500 | 1,004 (540) | Click to View |
| OOPTV - Oil (hydraulic) Operated (Oil Operated Trip Positionable Valve) | Oil Operated | Pull-to-close | 6 - 24 (150 - 600) | 150 - 2,500 | 1,004 (540) | Click to View |
| EHTTV - Electro-Hydraulic Trip Throttle Valve | Electro-Hydraulic | FPull-to-close | 3 - 24 (80 - 600) | 150 - 2,500 | 1004 (540) | |
| SDNRV - Swing Disc Non-return Extraction / Induction Power-assisted Valve | Swing Disc Non-return | Free-swinging | 4 - 36 (100 - 900) | 150 - 900 | 950 (510) | Click to View |
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