Page 57 - GarlockFluidSealing2010

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WARNING:
Properties/applications shown throughout this brochure are typical. Your specifc applica-
tion should not be undertaken without independent study and evaluation for suitability.
For specifc application recommendations consult Garlock. Failure to select the proper
sealing products could result in property damage and/or serious personal injury.
Performance data published in this brochure has been developed from feld testing,
customer feld reports and/or in-house testing.
While the utmost care has been used in compiling this brochure, we assume no respon-
sibility for errors. Specifcations subject to change without notice. This edition cancels
all previous issues. Subject to change without notice.
GARLOCK is a registered trademark for packings, seals, gaskets, and other products
of Garlock.
Flange leakage
¦ Check bolt tightness
¦ Check mating fange surface area for:
• Grooves
• Scratches
• Distorted areas
¦ Over-extension may indicate need for control units
Liquid weeping from bolt holes
¦ Check tube portion of joint for leaks; replace if nec-
essary
Cracking at base of arch or fange
¦ Check installed face-to-face dimensions for over-ex-
tension or over-compression
¦ Check for proper pipe alignment: must not exceed
0.125" (3.2mm)
Excessive ballooning of arch
¦ Indicates distortion/deterioration of joint strengthen-
ing members, or excessive system pressure
¦ Re-evaluate service conditions
¦ Install new joint
Troubleshooting
General Precautions
Elastomeric Joints Only
¦ Use proper care breaking seal
¦ Drive fanges apart gently with wooden wedges
¦ Bring insulation only to pipe fange—do not insulate
over or around joint
• Covering joints may make leak detection diffcult
• Insulation could restrict joint movement or cause
overheating
¦ Store in cool, dry, dark area
¦ Do not rest on fange edges
¦ Carefully protect joints near welding operations
¦ Never install spool-type joints next to fangeless
check valves or butterfy valves
¦ Install only against full-face metal fanges or dam-
age/leakage could result; restrictions also apply to
raised face or any non-full face fange