
BULLETIN 1000-MR5-1
MASON/MERCER EXPANSION JOINTS
9
•
112
1000
Series
SERIES
MATERIAL AVAILABILITY
& OPERATING TEMPERATURES
Series
1000
Standard Materials
Max.
Oper.
Temp.Tube Cover
B Butyl Butyl 250°F
E EPDM EPDM 250°F
H Hypalon
®
Hypalon
®
225°F
HN Hypalon
®
Neoprene
225°F
N Neoprene Neoprene 225°F
NH Neoprene Hypalon
®
225°F
Ni Nitrile Nitrile 210°F
NiN Nitrile Neoprene
210°F
NR Neoprene Natural 225°F
R Natural Natural 180°F
RN Natural Neoprene 180°F
V Viton
®
Viton
®
250°F
*
Food Grade Rubber Available.
ARCH
Style 1001 High Movement Expansion Joint
Coating of
Hypalon
®
Paint
Resilient
Arch
Smooth
Leakproof
Tube
Embedded Solid Steel
Hoop Rings
Carcass Made of
Multiple Plies of Tough,
Elastomer-Impregnated
Polyester Tire Cord
with Helical Steel Wire
Reinforcement
Control Rods
Compression Sleeves
Supplied by
Mercer Rubber
EXPANSION JOINTS INSTALLED IN PIPING SYSTEMS
THAT ARE ANCHORED ON BOTH SIDES OF THE JOINT.
No control rods are necessary. If control rods are installed as a safety
measure, the locking nuts must be backed off with a clearance equal
to the specified axial movement. The expansion joint will exert a thrust
force on the anchors. To calculate pressure thrust on anchors use the
following equation:
Pressure Thrust = (Pressure Thrust Area) x (Rated Working Pressure)
EXPANSION JOINTS INSTALLED IN UNANCHORED
PIPING OR CONNECTED TO ISOLATED EQUIPMENT.
Control rods are necessary. Once control rods are installed the joint
will no longer act as an expansion joint, since the pressure will extend
the joint to the nuts of the control rods. The joint will no longer take up
axial motion. It will make up for misalignment, transverse and possibly
angular motion. The nuts of the control rods should be threaded against
control rod gussets, thereby preventing joint from extending.
Expansion joint flanges must be in contact with a flat faced or
1
/16"
standard raised face flange. Depressions or protrusions typical of
vitaulic or similar type flanges must be covered with a steel spacer
flange first. Rubber flanges will not retain loose elements in valve bodies
that rely on contact with a steel flange. A steel spacer flange must be
inserted between the rubber expansion joint and the valve body.
Rigid Mating Flange
(Weld Neck or Slip on Type)
and Flange Hardware
Supplied by Others
Split Retaining Ring
ARCH
Style 1002
ARCH
Style 1003
ARCH
Style 1004
Standard 150 lb
ASA Drilling.
Other Drillings as Required
LOW SPRING RATE, LARGE
MOVEMENT EXPANSION JOINTS