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Large ET and ED Valves

Large ET and ED Valves
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Product Bulletin Fisher™ Large ED/EWD and ET/EWT Valves NPS 12 through 30 Fisher NPS 12 through 30 CL150 through CL600 ED/EWD and ET/EWT series control valves are used for either throttling or on-off control of a wide variety of liquids and gasses. ED/EWD series valves utilize a hanging cage and a seat ring that is bolted into the valve body. These valves have two graphite piston rings between the cage and plug, which provide up to a Class IV standard shutoff. They are used for high temperature applications between 316_C (600_F) and 593_C (1100_F). Shutoff can be improved to Class V by using the Bore seal. ET/EWT series valves utilize a hanging cage and a seat ring that is threaded into the cage. These valves have two spring loaded seal rings, one between the cage and plug and another between the seat ring and valve body, which provide up to a Class V standard shutoff. They are used for low to medium temperature applications between -46_C (-50_F) and 232_C (450_F). This temperature range can be extended to 316_C (600_F) for nonoxidizing service and to 260_C (500_F) for oxidizing service by using the High Temperature (HTS1) seal. The temperature range of the ET/EWT series can be extended to cryogenic temperatures as low as -198_C (-325_F) with the ET-C and EWT-C specialized versions of these valves. The specialized valves feature unique trim, seals, and a longer extension bonnet to tolerate the extreme cold. A range of severe service trims are available for noise abatement or cavitation control. Noise abatement trims help with aerodynamic noise attenuation in gas services and feature a Whisper Trim™ III or WhisperFlo™ cage. Cavitation control trims help prevent the damaging effects of liquid cavitation and include either a Cavitrol™ III cage (for services without entrained particulate) or Dirty Service Trim (DST) set (for services with entrained particulate). Fisher NPS 24x20 Valve Assembly with Piston Actuator Features n Stable Control at High Pressure Drops— Rugged cage guiding stabilizes the valve plug at all points in its travel range. This guiding reduces vibration, mechanical noise, and the need for hydraulic snubbers. n Economy— Streamlined flow passages provide greater capacities per initial investment than most globe valves of the same size. Balanced valve plug design can allow use of smaller actuators in high pressure drop applications. n Cost-Effective Operation— Increased wear resistance of the standard hardened stainless steel trim means long-lasting service. n Easy Maintenance— The valve can stay in the pipeline during removal of trim parts for insp

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Product Bulletin Specifications Valve Sizes ED, ET, and ET-C: J NPS 12, J 14, J 16, J 18, J 20, and J 30 EWD, EWT, and EWT-C(2): J NPS 16x12, J 20x16, J 24x16, and J 24x20 End Connection Styles Flanged: CL150, 300, and 600 raised-face or ring-type joint flanges per ASME B16.5. NPS 30 valve size has series A or B flanges, per ASME B16.47 Buttwelding: All ASME B16.25 schedules through schedule 120 that are compatible with the ASME B16.34 valve body rating For other end connections, contact your Emerson sales office for details. Maximum Inlet Pressure(1) Flanged: Consistent with CL150, 300,...

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Product Bulletin Figure 1. Typical Fisher ED/EWD Valve OPTIONAL TAPPING FOR LUBRICATOR VALVE BONNET BONNET GASKET CAGE GASKET BALANCING PORTS VALVE BODY SEAT RING Figure 2. Typical Fisher ED/EWD Valve with Bore Seal PISTON RING RETAINER BONNET BORE SEAL CAGE BONNET GASKET CAGE GASKET BALANCING PORTS PLUG VALVE BODY FLOW DOWN PLUG PISTON RING RETAINER BORE SEAL CAGE SEAT RING GASKET SEAT RING

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Product Bulletin Figure 3. Typical Fisher ET/EWT Valve STEM OPTIONAL TAPPING FOR LUBRICATOR VALVE BONNET GASKET CAGE GASKET BALANCING PORTS VALVE BODY SEAT RING VALVE BODY SEAT RING SEAL RING SEAT RING THREADED TO CAGE VIEW A

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Product Bulletin Figure 4. Typical Fisher ET/EWT Valve with HTS1 Seal STEM BONNET OPTIONAL TAPPING FOR LUBRICATOR VALVE BONNET GASKET PLUG CAGE GASKET BALANCING PORTS SEAT RING RETAINING RING BACKUP RING ANTI-EXTRUSION RING SEAL RING ANTI-EXTRUSION RING PLUG VIEW A - FLOW DOWN SEAT RING SEAT RING ANTI-EXTRUSION RING SEAL RING ANTI-EXTRUSION RING BACKUP RING RETAINING RING VIEW B- FLOW DOWN

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Product Bulletin Figure 5. Typical Fisher ET-C/EWT-C Valve STEM BONNET CAGE RETAINING RING BACKUP RING SEAL RING PLUG CAGE BONNET GASKET CAGE GASKET VALVE BODY BALANCING PORTS VIEW A FLOW DOWN SEAT RING GASKET SEAT RING

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Product Bulletin Table 1. Port Diameters and Valve Plug Travels for ED/EWD Valves VALVE SIZE, NPS TRIM (CAGE) PORT DIAMETER MAXIMUM VALVE PLUG TRAVEL Whisper Trim III Levels A, B, and C Whisper Trim III Level D Short Neck Short Neck Short Neck Long Neck Long Neck Short Neck Long Neck Short Neck VALVE STYLE Short Neck Whisper Trim III Levels A, B, and C Long Neck Whisper Trim III Level D Long Neck Long Neck Short Neck Short Neck Short Neck Long Neck Short Neck Long Neck Whisper Trim III Levels A, B, and C 18, 20x16, and 24x16 Whisper Trim III Level D Long Neck Short Neck Long Neck Long Neck...

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Product Bulletin Table 2. Port Diameters and Valve Plug Travels ET/EWT Valves VALVE SIZE, NPS TRIM (CAGE) PORT DIAMETER MAXIMUM VALVE PLUG TRAVEL Whisper Trim III Levels A, B, and C Whisper Trim III Level D Short Neck Short Neck Short Neck Long Neck Long Neck Short Neck Long Neck Long Neck Short Neck VALVE STYLE Short Neck Long Neck Whisper Trim III Level D Long Neck Long Neck Long Neck Short Neck Short Neck Short Neck Long Neck Whisper Trim III Levels A, B, and C Whisper Trim III Levels A, B, and C Whisper Trim III Level D Short Neck Long Neck Whisper Trim III Levels A, B, and C Whisper...

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Product Bulletin Table 3. Port Diameters and Valve Plug Travels ET-C/EWT-C Valves VALVE SIZE, NPS TRIM (CAGE) PORT DIAMETER MAXIMUM VALVE PLUG TRAVEL Whisper Trim III Levels A, B, and C Whisper Trim III Level D Short Neck Short Neck Short Neck Long Neck Long Neck Short Neck Long Neck Long Neck Short Neck VALVE STYLE Short Neck Whisper Trim III Levels A, B, and C Long Neck Whisper Trim III Level D Long Neck Long Neck Long Neck Short Neck Short Neck Short Neck Long Neck Whisper Trim III Levels A, B, and C Whisper Trim III Level D Short Neck Long Neck Whisper Trim III Levels A, B, and C...

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