kwik-ZIP HDXT Series User manual

©2019KWIK-ZIP PTY LTD Issue Date: Oct 19
HDXT SIZE TABLE & SETTING GUIDE
* For PE Pipe refer to the nearest Carrier Pipe OD.
For pipe greater than 1000mm OD, or if the carrier pipe surface is slippery, it is recommended that 12mm
stainless steel worm drive banding be considered for application over the collars. Contact kwik-ZIP for further
information.
HDXT Spacers are generally suitable for heavy pipe run lengths up to 300m (approx. 1,000 ft) in good condition
casings. Longer run lengths may be possible with casing lubrication, banding, and/or closer spacer intervals.
Contact kwik-ZIP for further advice.
kwik-ZIP
®
INERT CENTRALIZER &SPACER SYSTEMS
FOR THE DRILLING &CIVIL CONSTRUCTION INDUSTRY
INSTALLATION GUIDE
HDXT SPACERS
FOR LARGE DIAMETER AND HEAVY PIPE IN PIPE
APPLICATIONS SUCH AS SLIP LINING,
CASED CROSSINGS,ETC.
IMPORTANT: PLEASE READ IN FULL
BEFORE INSTALLATION
www.kwikzip.com

©2019KWIK-ZIP PTY LTD Issue Date: Oct 19
PRODUCT SELECTION GUIDE
The table below shows Model details, Part # and maximum operating temperatures:
Model & (Runner Height) Part # Max Operating Temp
(Deg C/F) Recommended for use on Pipe Diameter:
HDXT 43: (1.69 ” / ~ 43mm)
00002
- 20 C to 80 C (- 4 F to 176 F)
(HDXT Hi Load Inserts
should be used for service
temperatures above 50 C /
122 F)
300 mm (11.81”) OD &
greater
HDXT 63: (2.48” / ~ 63mm)
00004
HDXT 103: (4.05” / ~ 103mm)
00006
HDXT 153: (6.02” / ~ 153mm)
00008
HDXT Spacers are made with rubber grip pads under the collars to prevent slippage on the pipe, however
banding of collars with 12mm stainless steel worm drive banding may be required in certain circumstances.
HDXT Spacer runners incorporate a load sharing suspension system allowing heavy loads to be shared
across multiple runners, thereby reducing point loading and increasing the overall load capacity of the
spacer.
Selecting Model (Runner Height): The HDXT Model # corresponds to the runner height. To select the
correct runner height, calculate the annular clearance between the inner pipe and the outer casing
(assuming centralisation in the casing). The annular clearance is half the difference between the outer
casing ID and the inner pipe OD.
For ease of insertion it is recommended that the selected runner height is at least 10mm (0.3937”) less
than the annular clearance. The runner height should also be at least 15mm (0.59”) greater than the height
of the bell.
Different casing positions can be achieved by combining different runner heights in the same spacer,
including centred, or restrained. Contact kwik-ZIP if assistance is required.
Spacer Interval: Subject to project specifications and confirmation of carrier pipe weight, recommended
maximum intervals for heavy weight pipe (including fluid weights), including (MSCL) up to 1750 OD are
shown in the table below:
Carrier Pipe OD (mm) Typical Maximum Interval
(Centre to Centre)
FROM 300MM (11.81”) TO 750MM (29.53”)
2.0 M /6.56 FT
FROM 750MM (29.53”) TO 1100MM (43.31”)
1.5 M /4.92 FT
FROM 1100MM (43.31”) TO 1750MM (68.90”)
1.0 M /3.28 FT
Intervals of 1m may be required on gravity sewers to comply with prevailing codes and standards.
A spacer should also be placed within 500mm (20”) of each end of the pipe. For pipe diameters greater
than 1750mm OD, please contact kwik-ZIP for further advice.
If installing on heavy weight pipe with an annular clearance of greater than 300mm (11.81”) (more than
600mm (23.62”) difference between inner pipe OD and casing ID), contact kwik-ZIP for confirmation of the
interval between spacers.
INSTALLATION INSTRUCTIONS
The table on the back page of this guide indicates the number of HDXT Spacer segments
required to make each complete spacer and the approx. setting position for various pipe
diameters.
Step 1. When you have established the appropriate setting guide position (see table on
rear page), place the segments on a flat surface and insert the male section of each
segment into the mouth of the screw housing on the next segment as indicated by the
arrows (Fig. 1).
Step 2. Line up the leading edge of each screw housing (Fig 1.) with the appropriate
number on the Setting Guide.
Step 3. Once all segments are set, they can be wrapped around the pipe and the final
joints can be fastened. This method allows the centralizer to be made up mostly by hand.
Alternatively a cordless drill with screw driver attachment can be used provided care is
taken not to over torque the screws.
All screws must be tightened and always tighten the screws underneath the pipe last as
this will provide greater tension and better grip.
A flat screwdriver of approx. 8mm (5/16”) is used to tighten the screws once the segments
are fixed to the pipe.
Conditions of Sale and Use / Warranty:
Due to the varying conditions and applications for which kwik-ZIP products are used, neither kwik-ZIP
Pty Ltd or kwik-ZIP Marketing Pty Ltd (collectively, kwik-ZIP) offer any warranty for the products
suitability for any particular purpose. Accordingly, the Purchaser is deemed to have assessed the
suitability of the goods for the intended application and to the extent permitted by law, liability of kwik-
ZIP for breach of any implied, express, or statutory warranty or condition which cannot be excluded is
restricted, at kwik-ZIP's option, to:
i) The replacement of goods found to be defective in material and workmanship; or
ii) The payment of the cost of having such goods replaced;
Replacement of or payment for such goods is subject the goods being returned to us within 12 months
of shipment by kwik-ZIP.
Important Notes:
Do not over tension the screws as this may cause damage to the
thread. Maximum torque of 10 inch-lbs is recommended.
kwik-ZIP
®products should not be exposed to a naked flame or
sparks from welding. Failure to shield the product whilst welding
may result in damage.
Fig. 1