Installationinstructions-compensator.pdf

ANCHORING & GUIDING KEFLEX™ QUADRA-SIDE EXPANSION COMPENSATORS (7Q SERIES) Expansion compensators used in risers and radiation lines require adequate anchoring and guiding. Main anchors are necessary at the end of
each straight pipe run containing a compensator, with guides installed to prevent the line from bowing, buckling or becoming misaligned be-
cause of thermal expansion or internal pressures. Pipe hangers and rollers are not considered to be adequate as guides. Anchors should be
located per the Expansion Joint Manufacturers Association (EJMA) standards, as noted on the reverse side of this sheet. The main anchors must
restrain the ends of the pipe so that all expansion is directed into the compensator. The main anchors must also withstand the end thrust force
of the internal pressure, plus all other piping system loads.
Expansion compensators should not be subjected to hydrostatic pressure tests beyond their rated working pressures. If a higher pressure test is
required, the factory should be advised. The inside of all piping must be clean before installing and testing expansion compensators. Before the
pipe lines are hydrostatically tested, all anchors and pipe guides must be secured, and the plastic set pins must be removed.
THE CONTRACTOR INSTALLING SWEAT END TYPE EXPANSION COMPENSATORS IS ADVISED TO USE A SOFT (TIN-LEAD) SOLDER. EXCESSIVE
HEAT USED TO MAKE THE SOLDER JOINT MAY HAVE A DETRIMENTAL EFFECT ON THE COMPENSATOR. THE MANUFACTURERS WARRANTY IS
NULL AND VOID IF THE INSTALLING TEMPERATURE EXCEEDS 950° ON THE END FITTINGS.
The single type expansion compensator is fitted with two (2) plastic set pins that holds the bellows at an optimum installation length during ship-
ment. The dual type expansion compensator has four fasteners—two for each bellows. After the unit has been attached to the pipes and the
system properly anchored and guided, the plastic set pins must be removed, allowing the bellows to automatically make proper allowance for
expansion of the line during service (see diagram). Compensators must be leak checked subsequent to installation.
Expansion compensators are not designed to absorb torsional movement or stress. Subjecting a compensator to torsion of any amount may drastically affect operating life and will void the warranty. 1. Leave plastic pins in place during installation to provide proper compression and extension movements in re-sponse to pipe thermal expansion and contraction, re-spectively. 2. Remove plastic pins AFTER installation is complete, but COPPER TUBE GUIDE SPACING Data per Heating and Air Conditioning magazine, Sept. 1961 Maximum Spacing for Intermediate Guides For Copper *For Copper type “L” tubing, spacing may be increased by 10%. For Copper type “K” tubing, spacing may be increased by 20% FLEX-WELD, INC./KEFLEX TM 1425 Lake Avenue Woodstock, IL 60098 (800) 323-6893 Fax: (815) 334-3689 www.flex -weld.com For Additional Guides, see Keflex™ Riser
Installation Spec and Guide slide rule.
Compensator
1st Guide
2nd Guide
All Other Guides
D = Nominal Pipe I.D.
COPPER TUBE NYLON GUIDE & BRACKET (CTG) 1. Guides should be positioned at recommended spacing as noted on the reverse side. 2. The guide bracket must be mounted and secured to a solid and non-moving surface. 3. Maximum service temperature should not exceed 270 degrees Fahrenheit. 1. Anchors should be located per the Expansion Joint Manufacturers Association (EJMA) standards: A. At a change in direction of flow. B. Between two expansion joints of different sizes. C. At the entrance of a side branch into a main line. D. Where a valve is installed in a pipe run between two expansion joints. E. At the blind end of a pipe. 2. The anchor bracket must be mounted and secured to a solid and non-moving surface. 3. The copper anchor should be soldered to the copper tube for best results. RECOMMENDED POSITIONING OF ANCHORS, GUIDES, & COMPENSATORS FLEX-WELD, INC./KEFLEX TM 1425 Lake Avenue Woodstock, IL 60098 (800) 323-6893 Fax: (815) 334-3689 www.flex -weld.com

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