Manual

Mark 95FT Series
Sanitary "Flow Through" Back Pressure Regulators
Starting with the features and benets associated with
the superior design of the Mark 95, Steriow Valve has
added a ow-through option that creates more applica-
tion potential. The MK95FT can eliminate a portion of
the by-pass line components by allowing the back pres-
sure regulating valve to be installed in the primary line
– not in the separated by-pass line.
The Mark 95FT is often found in liquid services such
as WFI loops, CIP lines and filling lines. The valve is
normally closed, allowing flow to pass straight through
to downstream users. When demand downstream is
reduced and pressure builds and reaches the setpoint,
the Mark 95FT will open to relieve and maintain con-
stant pressure. This design allows for elimination of
pipe "T's" and elbows, reduction of weld joints, sim-
plified by-pass piping and easier, quicker installation.
Due to the unobstructed flow path through the valve,
very little to no pressure loss through the valve can
be expected. This is a key reason the MK95FT can be
installed directly into the primary process piping.
Valve
Size
Dimensions (inches)
Weight
Lbs
A B C D E
3/4" 3.29 8.50 1.50 5.70 6.58 19
1" 4.00 8.50 1.64 5.70 8.00 21
1-1/2" 4.24 10.5 2.53 7.25 8.48 41
2" 5.34 17.5 2.96 9.50 10.7 91
3" 5.34 18.0 3.46 9.50 10.7 99
Valve
Size
Dimensions (mm)
Weight
Kgs
A B C D E
DN20 84 216 38 145 168 8,6
DN25 102 216 42 145 203 9,5
DN40 108 267 64 184 214 19
DN50 136 445 75 241 271 41
DN80 136 457 88 241 271 45
D
B
C
AA
E
C
By-pass
OutletInlet
1
4
5
3
2
WFI RESERVOIR
1. MK95 (1 welded clamp
connection on inlet piping)
2. 90° "L" elbow (2 welds)
3. 90° "L" elbow (1-2 welds)
4. 90° "L" elbow (2 welds)
5. 180° "T" connector (3 welds)
1. MK95FT (3 welds for clamp
connection in pipe)
2. 90° "L" elbow (2 welds)
3. 90° "L" elbow (2 welds)
WFI RESERVOIR
2
3
1
MK95FT solution:
A typical MK95 pump by-pass line
looks as follows:
CRN Registration Number Available
Based on US tri-clamp ends. Consult factory for DIN and ISO
tri-clamp end dimensions