Instruction Manual

Instruction Manual
D103360X012
24000CVF/SVF Valves
April 2015
17
Special ENVIRO-SEAL Packing Note
The ENVIRO-SEAL PTFE packing system is suitable for 100 ppm environmental applications on services up to 51.7 barg
(750 psig) and process temperatures ranging from -46 to 232_C (-50 to 450_F).
For non-environmental applications, this packing system offers excellent performance at the same temperature range
up to the maximum valve working pressure.
Temperature limits apply to packing arrangements only. Complete valve assembly temperature limits may differ.
Refer to appropriate pressure/ temperature ratings.
Reference Packing Selection Guidelines for Fisher Sliding-Stem Valves, bulletin 59.1:062, D101986X012
.