FLEXITALLIC ENVIROFLEX 500 0 pages
ENVIROFLEX™
nnnn500
nnnnPRODUCT
nnnnREFERENCE
nnnnFLEXITALLIC LIMITED
nnnnPO BOX 3 MARSH WORKS DEWSBURY ROAD
nnnnCLECKHEATON WEST YORKSHIRE BD19 5BT
nnnnTEL: 01274 851273 FAX: 01274 851386
nnnnENVIROFLEX™ 500
nnnnDESCRIPTION
nnnnSERVICE
nnnnEnviroflex™500 is a low emission valve stem sealing system.
nnnnEnviroflex™500 is supplied as a five ring set, consisting of three moulded
nnnngraphite rings and two braided header rings specially formulated from
nnnnhigh performance carbon yarn. The moulded graphite rings are entirely
nnnnfree ofPTFE but there is a small amount in the header rings.
nnnnWhere the PTFE is of concern as a potential source of corrosion, then
nnnnEnviroflex™506 is the appropriate form to select.
nnnnEnviroflex™500 has been developed for use in Linear and Rotary valves,
nnnnboth control and hand operated. Enviroflex™500 has exceeded the most
nnnnstringent requirements for fugitive emissions, resulting in less product
nnnnloss and reduced emission penalties.
nnnnEnviroflex™500has Fire Test approval in accordance with API 607.
nnnnpH Range 0 -14*
nnnnMaximum recommended service temperature 350 °C (662°F)**
nnnnMaximum recommended service pressure
nnnn860 bar
nnnn(12470 psi, 86 MPa)
nnnn* Not recommended for use with strong oxidising agents.
nnnn** For service above 350°C, the temperature at which PTFE will start to
nnnndecompose and cause stem corrosion, Enviroflex™506 is recommended
nnnnas it is entirely free of PTFE.
nnnnPlease note that statements of operating limits are not an indication that
nnnnthese values can be used simultaneously or that they apply in all chemical
nnnnmedia.
nnnnAVAILABILITY
nnnnEnviroflex™500 can be manufactured in sizes to fit stuffing boxes of most
nnnnvalves, and is available as split ring form. Please contact our sales offices
nnnnfor further details.
nnnnPDS794 03/2003
nnnnThis Data Sheet relates to the material as supplied. The information contained herein is given in good faith, but no
nnnnliability will be accepted by the Company in relation to same.
nnnnThe acquisition of additional information may necessitate revision to parts, or all, of this Data Sheet, and such
nnnninformation will be supplied as it becomes available.
nnnnThe information given and, in particular, any parameters, should be used for guidance
nnnnpurposes only. The Company does not give any warranty that the product will be suitable for the use intended by
nnnnthe Customer.
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