ECR International Olsen OSVB II Series, Инструкция по установке, эксплуатации и обслуживанию, Страница: 7 / 40

7
INSTALLATION SYSTEM PIPING
Check local codes
for maximum
distance from
floor or other
allowable safe
point of discharge
RELIEF VALVE
DISCHARGE
PIPING
Figure 2 - Safety Relief Valve Discharge Piping
1. Refer to local codes and appropriate ASME Boiler and
Pressure Vessel Code for additional installation require -
ments. Install safety relief valve using pipe fittings
provided with boiler. See Figure 2
2.
Install safety relief valve with spindle in vertical posi -
tion.
3.
Do not install shutoff valve between boiler and safety
relief valve.
4. Install discharge piping from safety relief valve. See
Figure 2.
• Use ¾” or larger pipe.
• Use pipe suitable for temperatures of 375°F (191°C)
or greater.
• Individual boiler discharge piping shall be independent
of other discharge piping.
• Size and arrange discharge piping to avoid reducing
safety relief valve relieving capacity below minimum
relief valve capacity stated on rating plate.
• Run pipe as short and straight as possible to loca -
tion protecting user from scalding and properly drain
piping.
• Install union, if used, close to safety relief valve outlet.
• Install elbow(s), if used, close to safety relief valve
outlet and downstream of union (if used).
• Terminate pipe with plain end (not threaded).
WARNING
Burn and scald hazard. Safety relief valve could
discharge steam or hot water during operation.
Install discharge piping per these instructions.
!