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easy-e Cryogenic Valves

easy-e Cryogenic Valves
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Product Bulletin easy-e Cryogenic Valves Fisher™ easy-e™ Cryogenic Sliding-Stem Control Valves Fisher easy-e cryogenic valves are globe-style, single-port, valves featuring stainless steel construction materials and fabricated extension bonnets. Fisher ET-C and EWT-C valves are pressure-balanced, whereas the Fisher EZ-C valve is an unbalanced design. These cryogenic valves are designed to provide throttling or on-off control of liquids and gases at cryogenic temperatures as low as -198_C (-325_F). When required, these rugged valves can reliably provide tight shutoff for special applications within the chemical and hydrocarbon processing industries, such as certain liquefied natural gas services. The high-capacity ET-C and EWT-C valves with pressure-balanced trim allow the use of smaller, lower-cost actuators, reducing installed costs in high-pressure and high-flow-rate applications. The easy-e Valve Family These valves are part of the versatile easy-e family of industrial control valves. Special features include: TYPICAL FISHER easy-e CYROGENIC VALVE WITH EXTENSION BONNET n EZ-C: Interchangeable, restricted-capacity trims and n ET-C and EWT-C: Different cage/plug styles provide particular flow characteristics for highly-specialized applications. The standard cage comes in two different flow characteristics: J equal percentage and J linear. full-sized trims match a variety of process flow demands for highly-specialized applications. The standard plug is designed with three different flow characteristics: J equal percentage, J linear, and J quick-ope

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Product Bulletin easy-e Cryogenic Valves n Rugged Metal Seat—The metal-to-metal seat is designed and manufactured to provide long-lasting, reliable, tight shutoff at both ambient and cryogenic temperatures without the need for periodic lapping. This reduces the need for soft seats, even in applications with stringent shutoff requirements. n Cryogenic Spring-Loaded Seal Ring—The seal ring and associated valve parts in the ET-C and EWT-C valves are specifically designed and manufactured for excellent performance at low temperatures. n Stable Control—Rugged cage guiding in the ET-C n Fugitive...

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Product Bulletin easy-e Cryogenic Valves D102189X012 Specifications Maximum Pressure Drops(2) Available Configurations Same as maximum inlet pressure, except where limited by spiral wound gasket for EZ-C (see tables 7 and 8) ET-C: Single-port, globe-style control valve with cage guiding, balanced valve plug, and push-down-to-close valve plug action (figure 1) EWT-C: Single-port, globe-style control valve with cage guiding, balanced valve plug, push-down-to-close valve plug action, and with expanded end connections (figure 1) EZ-C: Single-port, globe-style control valve with post-guiding,...

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Product Bulletin 51.1:easy-e Cryogenic November 2020 easy-e Cryogenic Valves D102189X012 Specifications (Continued) Standard Construction Materials Valve Body and Bonnet: CF8M (316 SST) Body-Bonnet Bolting: SA-193-B8M Class 2 studs with SA-194-8M nuts (see table 6) Bonnet Bushing: S31600/filled PTFE Flat Sheet Gaskets: S31600/graphite Spiral Wound Gasket: N06600/graphite Packing Studs and Nuts: S31600 SST Seal Ring (ET-C and EWT-C): UHMWPE(3) with R30003 spring Back-Up Ring (ET-C and EWT-C): S31600 (316 SST) Retaining Ring (ET-C and EWT-C): S30200 (302 SST) Load Ring (for ET-C, NPS 8 and...

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Product Bulletin easy-e Cryogenic Valves Table 1. Fisher ET-C and EWT-C Typical Trim Material Valve Stem Trim Designation Valve Plug S31600 SST with CoCr-A (Alloy 6) hard-faced seat S31600 SST with CoCr-A (Alloy 6) hard-faced seat and guide 1. Trim 431W for use with Whisper Trim III. Includes S31600 CRPL cage retainer and 316 SST baffle for Level D trims. 2. Soft seat construction. Table 2. Fisher EZ-C Typical Combinations of Metal Trim Parts for Equal Percentage (Including Micro-Form), Linear, and Quick-Opening Valve Plugs Trim Designation 327 Valve Plug Valve Stem Seat Ring Seat Ring...

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Product Bulletin easy-e Cryogenic Valves Figure 1. Fisher ET-C and EWT-C Valve Detail LOAD RING RETAINING RING BACK-UP RING SEAL RING STANDARD NPS 8 AND 10x8 CONSTRUCTION DETAIL PACKING FLANGE PACKING FOLLOWER PACKING STUDS AND NUTS PTFE V-RING PACKING (STANDARD ARRANGEMENT) ACTUATOR LOCKNUT PACKING SPRING BODY-BONNET BOLTING EXTENSION BONNET VALVE BODY VALVE PLUG SPIRAL WOUND GASKET, BONNET GASKET, AND SHIM SEAT RING SEAT RING GASKET

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Product Bulletin easy-e Cryogenic Valves Figure 2. Fisher EZ-C Valve Assembly Detail PACKING FLANGE PACKING FOLLOWER ACTUATOR LOCKNUT PACKING STUDS AND NUTS V-RING PACKING (STANDARD ARRANGEMENT) PACKING SPRING BODY-BONNET BOLTING EXTENSION BONNET GUIDE BUSHING SPIRAL WOUND GASKET, BONNET GASKET, AND SHIM VALVE BODY SEAT RING RETAINER FLOW SEAT RING SEAT RING GASKET

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Product Bulletin easy-e Cryogenic Valves Table 4. Fisher ET-C and EWT-C Port Diameters, Valve Plug Travel, Stem and Yoke Diameters VALVE SIZE, NPS ET-C PORT DIAMETER VALVE STEM AND YOKE BOSS DIAMETERS MAXIMUM VALVE PLUG TRAVEL Standard Stem Optional Yoke Boss Yoke Boss Table 5. Fisher EZ-C Port Diameters, Valve Plug Travel, and Stem and Yoke Diameters VALVE SIZE, NPS EZ-C PORT DIAMETER, INCHES Equal Percentage(1) Quick Opening MAXIMUM PLUG TRAVEL VALVE STEM AND YOKE BOSS DIAMETERS Standard Optional Stem Yoke Boss Yoke Boss 1. 6.4 through 19.1 mm (0.25 through 0.75 inch) port diameters use...

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Product Bulletin easy-e Cryogenic Valves Table 7. Fisher EZ-C Maximum Allowable Pressure Drop for N06600/Graphite Spiral Wound Gasket (NPS 1 and 1-1/2 Valve Size) (Flow Up Only)(1) BAR(2) EZ-C Valve Size, NPS 1-1/2 Port Diameter, Inches 1. EZ-C should not be used in flow down service including on-off applications. 2. Pressure drop cannot exceed maximum inlet pressure as indicated in the specification table on page 2. 3. Pressure drops at intermediate temperatures may be interpolated. * Pressure drops are in excess of CL600 pressure ratings per ASME B16.34 for CF8M body material. Table 8....

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