**************************************************************************
b.
Steel Gate Valves: ASME B16.34. Provide outside screw and yoke
type with solid wedge or flexible wedge disc, and with trim
suitable for the service temperature and pressure.
2.2.7.2
Globe and Angle Valves
a.
Bronze Globe and Angle Valves: MSS SP-80, Type 1 (metal disc,
integral seat) or Type 3 (metal disc, renewable seat), 80 mm 3
inches and smaller, threaded or solder joint ends, Class 200
except that Class 150 with solder joint ends may be used for
copper tubing. Valves shall have renewable seats and discs,
except solder joint end valves which shall have integral seats.
**************************************************************************
NOTE: When special trim material is required,
revise latter portion of paragraph to identify the
special trim material.
**************************************************************************
b.
Steel Globe and Angle Valves: ASME B16.34, with trim suitable for
the service temperature and pressure.
2.2.7.3
Check Valves
a.
Bronze Check Valves: MSS SP-80, Type 3 (swing check, metal disc
to metal seat), 80 mm 3 inches and smaller, threaded or solder
joint ends, Class 200, regrinding type.
**************************************************************************
NOTE: When special trim material is required,
revise latter portion of paragraph to identify the
special trim material.
**************************************************************************
b.
Steel Check Valves: MIL-V-18436, with trim suitable for the
service temperature and pressure.
(1)
Swing Check Valves:
Shall have bolted caps.
(2)
Lift Check Valves:
Shall have threaded or bolted caps.
2.2.7.4
Steam Pressure Reducing Valves
MIL-V-16733, Type [_____], Class [_____], Construction [_____], Load
Characteristics [_____], cast iron prohibited.
2.2.7.5
Temperature Regulating Valves
MIL-V-18433, Type [_____], Style [_____], Class [_____], cast iron
prohibited.
2.2.7.6
Air Vent Valves
MIL-V-18499, [with] [without] vacuum holding device, pressure rated for the
intended service, and with a [capacity of [_____] liter per secondcfm]
[capacity based on manufacturer's standard for the connection size], cast
iron prohibited.
SECTION 15183N
Page 16
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