1. 1/2" Sight Glass Minimum Connection
2. 3/4" Low Water Cut-off Draw Minimum Connec-
tion
3. 1" Water Column Minimum Connection
4. 3/4" Control Manifold Minimum Connection
5. 1/4" Sight Glass Drain Minimum Connection
6. 1" Bottom Blow-Off Minimum Connection
7. 2 1/2" Bottom Blow-Off Maximum Connection
8. 2 1/2" Surface Blow-Down Maximum Connection
9. 3" Threaded Safety Valve Maximum Connec-
tion
10. 4 1/2" Flanged Safety Valve Maximum Connection
11. Up to 2" Steam Stop Valve Non-Indicating
12. 1/2" Take-off for Control Line Minimum Connec-
tion
13. 3" Socket Welded Fitting Maximum Size
14. 2 1/2" and over Hangers Must be Adjusted Over
15. 1/4" Minimum Size Syphon Non-Ferrous
16. 350 psi Malleable Iron Maximum PSI
17. 250 Cast Iron Maximum PSI
18. 250 Degrees ASME V Maximum Water Temperature
Heating Boiler
19.
, 500 Square Feet of Heating When do you need 2 or more heating safe-
Surface (2 means of water ty's?
feed)
20. Over 400 psi (cast iron sec- When do you need 2 sight glasses?
tional/MAWP 30psi)
21. 30 The ASME code for heating boilers says
that an ASME code, Section VIII expansion
tank is required on a hot water boiler when
the boiler pressure exceeds what pressure
(psig)?
22. Steel When the pressure exceeds 100
psi, the boiler blow-off fittings shall
be ?
23. Not be restricted or reduced The discharge outlet of a safety valve must
.
24. 20 An Altitude gauge is required on a hot wa-
ter supply boiler when altitude is more than
feet.
25. Gate The most appropriate valve application for
a surface blow-off system would be a
valve.
26. Auxiliary low-water cut-off Which device shall cause a safety
shut-down (lockout) requiring a manual re-
set?
27. 3/4" What is the minimum size of the drain pipe
and the blow-off valve required on a low
water cut-off that has a separate float cham-
ber? inches
28. Gate The valve that offers the least resistance to
flow is the valve.