Operating from a world-class, 3,000 sqm facility, FEMA executes large-scale, complex projects without limitation on valve weight or pressure ratings. Certified to rigorous international standards (including ISO 9001:2015, ATEX, and PED Module B+D), their specialty valves serve critical sectors like oil & gas, chemicals, aerospace, and cryogenics.
Its aluminium body and PTFE sealing are specified for compatibility with liquid nitrogen, liquid oxygen, and liquid argon at temperatures down to -203°C.The piston design ensures a positive, repeatable shutoff under reverse flow conditions at pressure ratings up to 422 bar - an exceptional figure for a cryogenic check valve. Available in ½" to 3" flanged configurations, it is deployed in cryogenic fill lines, vessel outlet connections, and pump discharge circuits.
Key Attributes
Industry-specific Attributes
TypeVDR8100
Connection TypeFlanged
Size½″ – 3″
Pressure422 Bar
Other Attributes
BodyAluminium
SealingPTFE
Temperature-203 to +121°C
Its aluminium body and PTFE stem packing provide the cold-temperature material compatibility needed in liquid nitrogen and liquid oxygen service at temperatures down to -196°C. With a pressure rating of 64 bar and a globe-type flow path that provides excellent throttling characteristics, this valve is used on cryogenic vessel outlets, transfer line isolation, and low-temperature process control installations where modulating flow control is required.
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Key Attributes
Other Attributes
TypeVDF6355
Connection TypeFlanged, Butt weld, Socket weld, Female Screw, Male Screw
Pressure64 Bar
BodyAluminium
SealingPTFE
Temperature-196 to +121°C
With stem (extended bonnet) connections in ¾" to 2" inlet sizes, it accommodates the thermal gradients inherent in cryogenic service. The metallic sealing and cast steel body ensure reliable, leak-tight reseating after pressure events at temperatures down to -200°C and at pressures up to 350 bar. The S3100 meets the safety requirements of cryogenic vessel pressure relief as defined by international pressure equipment directives.
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Key Attributes
Other Attributes
TypeS3100
Connection TypeStem
Inlet Size¾″ – 2″
Outlet Size1″ – 2″
Pressure350 Bar
Orifice10 – 21.2mm
BodyCast Steel
SealingMetallic
With flanged inlet connections from ¾" to 8" and outlet sizes to 12", it handles large volumetric relief flows through orifice diameters from 10 to 152.8mm. Cast steel construction with metallic seating provides structural integrity and reliable reseat performance from cryogenic temperatures down to -268°C up to process temperatures of +540°C. The S3000 is the primary safety device for high-pressure vessel and pipeline protection in LNG, industrial gas, and petrochemical facilities.
