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5.14 Pulp and Paper diaphragm seals (S26KN)
Models 266HDH, 266NDH, 266GDH and 266ADH integrate a direct mount seal on the positive side, having the negative side
reference at atmospheric or vacuum pressure, respectively for gauge or absolute measurements.
The integral seal is available in 1in and 1-1/2in diaphragm sizes specifically designed for pulp & paper industry applications,
providing a flush diaphragm to the process; this solution ensures the measure reliability avoiding all problems of crystallization/
polymerization, typical of pulps having viscosity as in the paper mill.
IMPORTANT. Use of proper procedures and fixtures avoid the risks of personal injury or plant damage.
The recommended minimum radius of curvature of the tank is 0.91 m (3 feet).
Allowed fill fluids are Silicone Oil DC200
1 in. and 1-1/2 in. size with 1 in. and 1-1/2 in. NPT threaded connection
This particular process connection can withstand a maximum working pressure of 345bar (5000psi). The wetted parts are
available in AISI 316L, Hastelloy C276
18 (0.71)
113 (4.45)
26 (1.02)
1 in.-11.5 NPT
41 (1.61)
Figure 42: S26KN with NPT threaded connectionl
1 in. and 1-1/2 in. size with G 1 in. B and G 1-1/2 in. B threaded connection
This particular process connection can withstand a maximum working pressure of 600bar (8700psi). The wetted parts are
available in AISI 316L, Hastelloy C276
113 (4.45)
18 (0.71)
26 (1.02)
G 1 in. A
41 (1.61)
Figure 43: S26KN with GAS threaded connection
and mineral oil Marcol 82
TM
and Diaflex (anti-abrasion diaphragm treatment).
TM
29 (1.14)
18 (0.71)
width across flats of hexagon
and Diaflex (anti-abrasion diaphragm treatment).
TM
29 (1.14)
18 (0.71)
width across flats of hexagon
.
TM
18 (0.71)
113 (4.45)
39 (1.54)
1 1/2 in.-11.5 NPT
55 (2.17)
113 (4.45)
18 (0.71)
39 (1.54)
G 1 1/2 in. A
55 (2.17)
2600T Series Pressure transmitters | OI/S266-EN Rev. B 35
29 (1.14)
18 (0.71)
width across flats of hexagon
29 (1.14)
18 (0.71)
width across flats of hexagon
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