Flow Safe F7000 SERIES - PILOT VALVE SOFTGOODS

INSTALLATION, OPERATION, &
MAINTENANCE MANUAL
TITLE: F7000 / 8000 Series Rev. T
Pilot-Operated Safety Relief Valve Page 41 of 43
8.2 PILOT VALVE SOFTGOODS
Most common materials listed; contact Flow Safe for availability of other materials.
Seals made from other materials noted below.
NOTE: Softgoods kits may contain extra O-rings for older part versions that may not be needed.
F100 Softgoods Kit: P/N F100-DHP-DXYZ High pressure, direct-mount
or F100-HP-DXYZ High pressure, direct- or bracket-mount
Contents (See drawing on Page 14): Qty.
Seat * 1
Diaphragm 1
Nozzle O-ring 1
Nozzle seal 1 * Hardness per Code “D”
Small face seal 1 above (Code “9” not
Large face seal 1 applicable to F100 pilot)
Gasket (For use with Teflon diaphragm only) 1
F200 Softgoods Kit: P/N F200-DXY Conventional style
F200IM-DXY ‘IM’ style
Contents (See drawings on Page 16) Qty.
Upper / lower seat * 2
BFP O-ring 1
Upper nozzle seal 1
Small face seal 1
BFP face seal 1
Bushing seal (PTFE / Teflon) 1 * Hardness per Code”D” above
‘IM’ bushing O-ring 1 ** ** For ‘IM’ style only
Inlet port face seal 1 **
X / Y / Z =
Pilot Seat / Seal / Diaphragm Material
Code
D =
Pilot Seat Hardness
Code
B
V
U
E
Z
C
N
T
Buna-N
Viton
Polyurethane
EPR / EPDM
Kalrez
Chemraz
Lo-temp nitrile
Teflon – FEP film (diaphragms only)
5
6
7
9
0
Soft: < 50 psig
Medium soft: 40-80 psig
Medium: 51-999 psig
Hard: > 1000 psig
“Universal”: 1 each of
above seats
These pressure ranges
are approximate only.