2.7.4
Pressure Gages
ASME B40.1, Accuracy Grade A, for air, with steel or brass case, and
nonshatterable safety glass, and a pressure blowout back to prevent glass
from flying out in case of an explosion. Gages shall have a 90 mm 3 1/2
inch minimum diameter dial and a dial range of approximately twice working
pressure.
2.7.5
Hangers and Supports
Provide pipe hangers and supports conforming to MSS SP-58, MSS SP-69, and
ASME B31.1, except as specified or indicated otherwise. Furnish zinc
plated pipe hangers and supports except for copper plated inserts for
copper piping. Provide tubing supports of U-shaped steel bolts and nuts
firmly secured to adequately support structures such as walls, columns,
floors, or brackets. Clips shall fit closely around piping but shall have
sufficient clearance to permit longitudinal movement of piping during
normal expansion and contraction. Provide supports at valves, fittings,
branch lines, outlets, changes in direction, equipment, and accessories.
2.7.6
Quick Disconnect Couplings
All brass and suitable for a working pressure of not less than 862 kPa
(gage) 125 psig. Female side of coupling (fixed end) shall have male
thread connection with automatic shutoff. Provide male side of coupling
with hose stem and ball check to bleed pressure from hose and prevent hose
whipping.
2.7.7
Single Cartridge Type Filters
862 kPa (gage)125 psig operating pressure and filter housing of brass or
bronze. Provide cellulose cartridge filters of graded density construction
capable of removing liquids and solids of 5 microns and larger. Filter
capacity shall be compatible with rated flow of equipment or pressure
reducing valves provided.
2.7.8
Strainers
FS WW-S-2739. Bronze or malleable iron body, Class 125, Style Y, Type II,
simplex type, with 20-mesh Monel or stainless steel screen.
2.7.9
Traps
FS A-A-60001 to drain water and other liquids from system. Type of traps,
as indicated, and rated working pressure not less than system operating
pressure.
2.7.10
Lubricators
Brass body, 862 kPa (gage) 125 psig minimum rating, with [clear plastic
bowl and metal guard.] [metal bowl.]
2.7.11
Flexible Connections
Vibration isolation, wire braid reinforced corrugated metal hose type,
line-sized, with bronze end connections, suitable for pressure indicated.
Length as recommended by manufacturer but not less than [457] [_____] mm
[18] [_____] inches.
SECTION 15211N
Page 23
Previous Page
