Emerson Neotecha SAPRO Installation And Maintenance Instructions Manual page 6

Neotecha SAPRO
InstallatIon and MaIntenance InstructIons
6.2.2 Recommended tightening torques (Nm) of bolted connections for installing SAPRO valves
staNdard Values for GalVaNized steel bolts (8.8), liGhtly oiled
dN Nps
25 1
40 1½
50 2
65 2½
80 3
100 4
6.2.3 Final checks
before commissioning the sampling valve, the pipeline should be flushed, to flush out any solid
particles that might be present and which could damage the soft seat of the valve.
the bottle adaptor should also be flushed through at the same time. for this, first remove the
padlock (item 10, if fitted, not included in delivery package) and pull out the safety pin (item 3). the
valve can now be opened briefly by pressing the dead man's lever (item 2), and then closed again
by releasing the lever.
6.2.4 Packings
the SAPRO valves are installed and sealed like other valves (ball valves, butterfly valves, etc.).
first of all, take any internal works standards into account and use standard packings.
Depending on the type of pipeline, we recommend the following packings:
sapro valve
High-grade steel wafer or flanged
style
PfA coated wafer or flanged style
7 commissioNiNG
7.1 General commissioning
before commissioning, the information relating
to material, pressure and temperature should
be checked against the installation diagram of
the pipeline system.
Any debris left in the pipeline and valves (dirt,
welding beads, etc.) will inevitably lead to
leakage.
SAmPling VAlVe SV fOR SAmPling intO bOttleS
®
torque high grade steel
35
60
100
130
90
105
pipeline type
Steel or high-grade steel with flush flanges
Steel pipe enameled
Steel Ptfe lined
PVDf pipe
Steel pipe rubberized
glass pipe with flat surface
WarNiNG
Before each commissioning of a new system or
re-commissioning of a system after repair or
modification, it must be ensured that:
- All installation and assembly work has been
completed in accordance with the regulations!
- Commissioning is only undertaken by 'Qualified
personnel'.
- The valve is in the correct operating position.
- New protective equipment is installed or existing
protective equipment repaired.
torque pfa
22
35
55
70
50
60
packing type
Punched flat packing
Coated flat packing
gORe-teX flat packing
Coated flat packing
no packing
Punched flat packing
Coated flat packing
gORe-teX flat packing
packing material
Asbestos-free sheet
Ptfe casing with Afm liner
Spun Ptfe
Ptfe casing with steel corrugated ring
ePDm, iiR
Ptfe casing with Afm liner
Spun Ptfe
6