Specifications - Lord and Son Construction, Inc.

integral pointer on the valve which registers the degree of valve opening.
Flow through the valve shall be manually adjustable from bubble tight
shutoff to full flow. Valves smaller than 2 inches shall have NPT
connections. Valves 2 inches and larger shall have flanged or grooved end
connections. Valve design shall allow the back seat for the stem to be
replaced in the field under full line pressure.
2.4.11 Water Temperature Mixing Valve
Valve, ASSE 1017 for water service.
2.4.12 Water Temperature Regulating Valves
Provide copper alloy body, direct acting, pilot operated, for the intended
service.
2.4.13 Water Pressure Reducing Valve
Valve, ASSE 1003 for water service, copper alloy body, automatic re-seating,
with test lever.
2.4.14 Pressure Relief Valve
Valve shall prevent excessive pressure in the piping system when the piping
system reaches its maximum heat buildup. Valve, CSA/AM Z21.22 and shall
have cast iron bodies with corrosion resistant internal working parts. The
discharge pipe from the relief valve shall be the size of the valve outlet
unless otherwise indicated.
2.4.15 Combination Pressure and Temperature Relief Valves
CSA/AM Z21.22, copper alloy body, automatic re-seating, test lever, and
discharge capacity based on AGA temperature steam rating.
2.4.16 Drain Valves
Valves, MSS SP-80 gate valves. Valve shall be manually-operated, 3/4 inch
pipe size and above with a threaded end connection. Provide valve with a
water hose nipple adapter. Freeze-proof type valves shall be provided in
installations exposed to freezing temperatures.
2.4.17 Air Venting Valves
Manually-operated general service type air venting valves, brass or bronze
valves that are furnished with threaded plugs or caps. Automatic type air
venting shall be the ball-float type with brass/bronze or brass bodies, 300
series corrosion-resistant steel float, linkage and removable seat. Air
venting valves on water coils shall have not less than 1/8 inch threaded
end connections. Air venting valves on water mains shall have not less than
3/4 inch threaded end connections. Air venting valves on all other
applications shall have not less than 1/2 inch threaded end connections.
2.4.18 Vacuum Relief Valves
CSA/ANSI Z21.22
Section 23 64 26 Page 14