Victaulic VicFlex AH1, Руководство пользователя

Страница: 157 / 239

FIG. C-3
Lightweight Flexible Coupling
The instructions are based on pipe grooved in accordance with SPF™ grooving specifications. Check pipe ends for proper groove
dimensions and to assure that the pipe ends are free of indentations and projections which would prevent proper sealing.
ALWAYS USE A GRUVLOK ® SPF/ANVIL™ LUBRICANT FOR PROPER COUPLING ASSEMBLY. Thorough lubrication of the
external surface of the gasket is essential to prevent pinching and possible damage to the gasket. For temperatures above 150°F
(65˚C) and below 32°F (0˚C) use Gruvlok
®
SPF/Anvil™ Xtreme Lubricant™ and lubricate all gasket surfaces, internal and external.
See Gruvlok SPF/Anvil Lubricants in the Technical Data section of the Anvil SPF catalog for additional important information.
1
Check and lubricate gasket
Check gasket to be sure it is compatible
for the intended service. Apply a thin coating
of Gruvlok SPF/Anvil Xtreme Lubricant
to the outside and sealing lips of the
gasket. Be careful that foreign particles do
not adhere to lubricated surfaces.
2
Gasket installation
Slip the gasket over the pipe end,
making sure the gasket lip does not
overhang the pipe end.
Step 2 Step 3
3
Alignment
After aligning the two pipe ends
together, pull the gasket into position,
centering it between the grooves on
each pipe. Gasket should not extend into
the groove on either pipe.
Specified Bolt Torque
Step 4
4
Housings
With one nut unthreaded to the end
of the bolt, unthread the other nut completely
and swing the coupling housing halves
over the gasket, making sure the housing
keys engage the grooves. Insert the bolt
and turn the nuts finger tight.
5
Tighten nuts
Tighten the nuts alternately and
equally to the specified bolt torque. The
housing bolt pads must make metal-to-
metal contact.
Caution: Uneven tightening may cause
the gasket to pinch.
6
Assembly is complete
Visually inspect the pipe joint to
assure the coupling keys are fully
engaged in the pipe grooves and the bolt
pads are in firm even metal-to-metal
contact on both sides of the coupling.
Specified bolt torque is for the oval neck track bolts used on SPF ™ couplings and
flanges. The nuts must be tightened alternately and evenly until fully tightened.
Caution: Use of an impact wrench is not recommended because the torque
output can vary significantly due to many variables including air pressure supply,
battery strength and operational variations.
Caution: Proper torquing of coupling bolts is required to obtain specified
performance.
Over torquing the bolts may result in damage to the bolt and/
or casting which could result in pipe joint separation. Under torquing the
bolts may result in lower pressure retention capabilities, lower bend load
capabilities, joint leakage and pipe joint separation. Pipe joint separation may
result in significant property damage and serious injury.
ANSI
Specified Bolt Torque
Bolt
Size
Wrench
Size
Specified
Bolt Torque*
In. In. Ft.-Lbs
3
/
8
11
/
16
30-45
1
/
2
7
/
8
80-100
5 /
8
1 1 /
16
100-130
3
/
4
1
1
/
4
130-180
Metric
Specified Bolt Torque
Bolt
Size
Wrench
Size
Specified
Bolt Torque*
mm mm N-M
M10 16 40-60
M12 22 110-150
M16 24 135-175
M20 30 175-245
* Non-lubricated bolt torque * Non-lubricated bolt torque
Step 1
Step 5 Step 6
FP-4.12