Steriflow Mark 978INLINE Series - Manual (Page 5)

M
ark
978 S
anitary
G
lobe
-S
tyle
C
ontrol
V
alVeS
- J
orlon
D
iaphraGM
S
eal
J
orlon
D
iaphragm
s
eal
(3")
SST Namur yoke permits easy
mounting of a variety of positioners
Unique body design is
compact and ultra-lightweight
simplifying installation
Optimized flow geometry to
accommodate high hydraulic
forces of large flows
Contoured plug design for true equal
percentage or linear flow characteristic
throughout entire stroke length
Hard seats for ANSI Class III shut-off
Soft seats to ANSI Class VI
100% 316L construction for body
and trim which ensures process
compatibility
FDA/USP Class VI Jorlon diaphragm
resistant to aggressive chemicals,
suitable for continuous steam service;
Lifetime Warranty
Corrosion resistant
coating with SST
fasteners
Optimized spring
configuration for
maximum pressure
drop in compact size
Extended PEEK guide
bushings ensures
smooth, stable move-
ment throughout entire
stroke length
Stainless steel sanitary control valve shall be made from ASTM SA479 316L material, which includes body and
all wetted metal parts. Control valve with the stem sealed by FDA approved and USP Class VI certified Jor-
lon diaphragm with lifetime warranty. The valve stem shall be supported by a one piece, SS NAMUR Yoke to
provide structural rigidity in any installation orientation. Guiding of valve stem/plug shall be outside of the wetted
process areas of valve above diaphragm. Control valve shall have secondary stem seal, and extended guide
bushing to provide additional support for multiple installation orientations. Valve shall be self draining when
installed with inlet vertical and below valve assembly.
s
peciFication
-5-
FDA/USP Class VI secondary stem seal
Telltale weephole between primary
diaphragm and secondary stem seal
per ASME BPE 2009