Fisher easy-e Cryogenic Universal Globe Valves – Sliding Stem Valves

Fisher easy-e Cryogenic Universal Globe Valves are part of the sliding stem valve range that have either balanced or unbalanced valve plugs and feature stainless steel materials, specialised seals, and extension bonnets for cryogenic service applications with temperatures down to -193°C (-325°F).

The easy-e Cryogenic valves are available in sizes ranging from NPS 1 to 30 and pressure ratings up to CL600, with several globe body, sliding-stem configurations, including ET-C, EWT-C, and EZ-C:

ET-C: Balanced, cage-guided, push-down-to-close valve
EWT-C: Balanced, cage-guided, push-down-to-close valve with expanded end connections
EZ-C: Unbalanced, post-guided, push-down-to-close valve

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.

Fisher easy-e Cryogenic Universal Globe Valve

Product Features

Compliance with the Clean Air Act—ENVIRO-SEAL™ packing systems provide an improved stem seal to help prevent the loss of process fluid. The ENVIRO-SEAL packing systems feature PTFE, Graphite ULF, or Duplex packing with live loading for reduced packing maintenance
Cryogenic Design Features—The stainless steel materials, specialized seals, and extension bonnet are designed to meet cryogenic temperature requirements
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
Piping Economy–Expanded end connections of EWT-C valve bodies may reduce the need for line swages, while accommodating oversized piping arrangements used to limit fluid flow velocities
Valve Plug Stability— Rugged cage guiding for the ET-C and EWT-C provides high valve plug stability, which reduces vibration and mechanical noise. Post guiding for the EZ-C also provides valve plug stability, but with less chance of a sticking valve plug due to non-lubricating or sticky process fluids or build-up of entrained solids
Balanced Valve Plug Construction— ET-C and EWT-C balanced valve plugs permit the use of smaller, lower-cost Fisher actuators
More Flow Capacity for Initial Investment— Streamlined flow passages provide excellent capacities and flow
Sour Service Capability—Materials are available to meet NACE standards
Application Flexibility—In EZ-C constructions, low-flow requirements can be satisfied with standard restricted-capacity trim or with Micro-Form, Micro-Flute, or Micro-Flow valve plugs. If flow requirements change, the valve can be converted to full-sized trim
Operating Economy—Increased wear resistance provided by standard, hardened stainless steel trim means long service life
Maintenance Economy— Trim inventory costs are cut because dimensional standardization permits use of most standard easy-e trim parts. During removal of trim parts, the valve body can stay in the pipeline
Thoroughly Tested—Extensive cryogenic testing during the development of the valve design reduces the need for expensive cold testing for most applications, which results in quicker delivery and greater value

FISHER easy-e cryogenic UNIVERSAL GLOBE VALVE

PRODUCT Specification

Valve Sizes	ET-C: NPS 3, 4, 6, and 8 EWT-C: NPS 6X4(1), 8X4, 8X6, 12X6, and 10X8 EZ-C: NPS 1, 1-1/2, 2, 3, and 4
End Connection Styles(2)	CL150, 300, or 600 raised-face flanges per ASME B16.5, EN 1092-1/B
Maximum Inlet Pressure(2)	Consistent with CL150 and CL300 pressure-temperature ratings per ASME B16.34 CL600 valves with B8M Class 2 bolting are consistent with CL600 pressure-temperature ratings per ASME B16.34 ex CL600 valves with optional S20910 (XM-19) bolting are consistent with CL600 pressure-temperature ratings per ASME B16.34
Maximum Pressure Drops(2)	Same as maximum inlet pressure, except where limited by spiral wound gasket for EZ-C
Shutoff Classifications Per ANSI/FCI 70-2 and IEC 60534-4	ET-C and EWT-C. Metal Seat:. Class IV is standard Class V Air Test is optional (Test will be 50 psid air)(6). Class VI Composition Seat:. Standard air test is standard Class VI is optional EZ-C. Metal Seat:. Class IV is standard Class VI is optional Maxim
Conformance to Customer Specifications	ET-C with metal seats and EZ-C valves successfully passed type approval testing per SIPM (Shell) specification T-2.253.730
Flow Characteristics	ET-C, EWT-C, and EZ-C. Equal percentage Linear EZ-C Only. Quick-opening
Flow Direction(5)	ET-C and EWT-C. Normally down for linear and equal percentage trims. Flow up for Whisper Trim. EZ-C. Up through the seat ring only
Material Temperature Capabilities(2)	ET-C and EWT-C -198 to 66C (-325 to 150F) EZ-C -198 to 149C (-325 to 300F) Bo
Options	ET-C and EWT-C: Whisper Trim III and WhisperFlo trim for aerodynamic noise attenuation, and Cavitrol III cages for liquid cavitation protection are available.

1. Valve size number is end connection size by normal trim size. For example, an NPS 6X4 EWT-C valve has NPS 6 end connections with NPS 4 trim (see table 4 on data sheet). 2. Do not exceed the pressure or temperature limits in this bulletin, and any applicable code limitations. 3. UHMWPE stands for ultra high molecular weight polyethylene. 4. A spring is used only with PTFE V-ring packing. A lantern rings replace the spring in other packing arrangements. 5. Down is in through the cage and out the seat ring (see figure 1 on data sheet). 6. Class V shutoff cannot be performed with water. The residual trapped moisture from testing with water can cause valve and trim damage from the ice crystals formed at below freezing service temperatures.

Fisher easy-e Cryogenic Universal Globe Valves – Valve Detail

FISHER easy-e cryogenic Universal globe VALVE

Materials of construction

Description	Material
Valve Body and Bonnet	CF8M (316 SST)
Body-Bonnet Bolting	SA-193-B8M Class 2 studs with SA-194-8M nuts (see table 6 see data sheet)
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(1) 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 for EWT-C, NPS 10 x 8 only)	N07718
Packing Follower, Lantern Ring, Packing Spring(2) and Packing Box Ring	S31600 SST

UHMWPE stands for ultra high molecular weight polyethylene
A spring is used only with PTFE V-ring packing. A lantern rings replace the spring in other packing arrangements

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➡ Did you know? Fisher Control Valves are approved, certified and classified to international standards including ASME, CSA, IEC, NACE, FDA & NFPA. Should you require assistance with valve specification for explosion-proof or intrinsically safe applications in the hazardous area industries, please contact T&D.