Fulton Ancillary Equipment SteamPac Unfired Steam Generators - Manual (Page 33)

Fulton Thermal Corp.*SteamPac Unfired Steam Generators Manual* Version 2010-0201
Page 33
Caution
It is imperative that an adequate vent to atmosphere is provided on all such
covered or enclosed vessels which may receive steam.
c) Special care is to be taken to ensure that blowdown lines are properly secured so no
movement (other than expansion) can be caused by the action of steam discharge from
that pipe.
d) Care must always be taken to comply with water board or other authority requirements to
avoid damage to PVC main drains due to the discharge of hot effluent. If cold water is
blended with the effluent to assist cooling, this should usually come from a separate tank
or directly from the main supply.
Note
A deaerator may be supplied in lieu of a return tank. Please consult the
manufacturers manual for installation and operation of the deaerator.
26. Steam Pipework
a) All pipework and equipment to be fed with steam must either be designed to withstand
the generator safety relief valve setting, or alternatively, an additional safety valve or
valves should be inserted in the service line adjacent to the equipment to be protected.
All steam pipework should comply with all Federal, State and Local Codes.
b) Steam pipework to the plant must be sized to suit the steam flow and pressure. The
correct diameter for interconnecting pipework to the steam generator is at least equal to
the diameter of the main steam outlet valve above the generator.
c) All safety relief valves must be connected to a discharge line of a diameter at least equal
to the discharge port. These lines should be piped directly to outside the building and
terminate in such a way that steam discharge does not create a danger to personnel or
property. Extra care must be exercised when this pipework cannot be of minimal length,
and, if necessary a larger diameter pipe employed to reduce resistance to flow.
d) Discharge pipework is to be installed such that no water can accumulate and a small
drain provided close to the relief valve(s) and piped to a safe place.
Warning
No undue load is to be imposed on the safety relief valve body by this pipework.