Emerson Process Management BP104 User Manual
Page 2
BP104/SI
Page 2
GB
Safety Information:
Vertical Boiler Chambers manufactured from carbon steel
These safety instructions are to be used in conjunction with the “Boiler Controls” product manual.
Definitions:-
P
s
max = Maximum allowable chamber pressure at the stated temperature - bar
T
s
max = Maximum allowable chamber temperature - °C
T
s
min = Minimum allowable chamber temperature - °C
P
t
= Chamber Test pressure - bar
This product is designed and manufactured to comply with Module H of the Pressure Equipment Directive
97/23/EC. It carries a CE mark and has a Declaration of Conformity to show compliance with the Directive.
Under the Pressure Equipment Directive this product is classified as Piping.
This product is designed for use with gases and liquids within Group 2.
It is the responsibility of the installer/user of this equipment to ensure: -
• The product is installed and used by suitably trained personnel in accordance with all relevant Local and
National regulations and codes.
• Safe working practices for the media and process concerned are followed during installation and maintenance.
• The materials of construction are suitable for the application. See also Table 1
• The pressure and temperature limits for this equipment are not exceeded, if necessary by the use of suitable
safety accessories. See also Table 3
• All Mobrey Measurement supplied installation fixing bolts are used where applicable, and are only replaced
by exact equivalents. On all other flanges, the correct quantity, size and strength of bolts (clamp type) are
used. All fasteners are evenly tightened to the correct torque. See also Table 2.
• Correct gaskets/seals are fitted and are compatible with the media and process.
• The product is protected from fire.
• The product is protected from impact.
• This product is not used as a support for other equipment or personnel.
• Regular inspection for corrosion and wear are carried out, both internal and external.
Table 1 - Vessel Pressure Materials
Table 2 - Bolt Torques (Flanges)
Component
Material Specification
Flange Type
Bolting
Torque (Nm)
Switch Mounting Flange – M12
ASTM A105
Switch Mounting Flange
M12
50
Switch Mounting Flange – M20
BS1501 224-490B LT50
Switch Mounting Flange
M20
150
Chamber Body Tube
ASTM A106 Grade B
Bottom Flange
M12
50
Chamber End Cap
ASTM A105
Side Flange
M12
60
Process Flange / Fitting
ASTM A105
Studs (where supplied)
ASTM A193 B7
Nuts (where supplied)
ASTM A194 2H
For use with high tensile bolts only.
For further bolting torque details see L1880 + L1882
Table 3:
Vertical Boiler Chambers manufactured from Carbon Steel
Chamber Type
Nameplate Stamping Explanation
4561, 4661
4671
e.g. 8645
8621, 8631, 8641
8645
21
5
32
5
Ps max 20C
Ts min
21
214
32
237
Ps max
at Ts max
48
72
Pt
32
Ps max 20C is the same as Ps max at Ts max
32
237
Ts min for boiler chamber is always 5C = 5
78
Ts max for 21 bar steam is 214C = 214
Ts max for 32 bar steam is 237C = 237