Type RS - 3
(Repair Clamps)
Repair clamp type RS 3
Stainless steel repair clamps type RS 3 are used for permanent repairs of broken and damaged pipes
for water, gas and petrochemical fluids
Application
Type RS 3 clamps are available in many different working ranges for pipes of DN 250 – DN 1000.
Available lengths: 300 / 400 / 500 / 600 mm.
Other lengths possible on request. If you need to repair larger pipes we can offer 4 band or 5 band clamps.
The clamps can be used to repair the following pipe types:
- Cast iron (DI / CI)
- Steel (St.)
- Asbestos Cement (AC)
- PE coated steel
- PE
- PVC
- GRP
Repair clamps should be used under following conditions:
- The width of the clamp should be at least equal to the pipe OD.
- The width of the clamp should be 150 mm greater than the length of any crack on pipes with an outside diameter up to 350 mm. On larger pipes this should be at least 200 mm.
- For PVC pipes , the width of the clamps should be 50 % longer and bolt torque should be reduced by 50 %.
- The maximum allowable distance between two pipe ends should not exceed 10 mm.
- The maximum allowable deflection is 2 degrees.
- The maximum allowable offset should not exceed 3 mm.
Pressure ratings:
Pressure ratings for water depend on the type of break or damage, pipe OD, medium etc.
Pipe DN 250 up to and including DN 500: 10 bar
Pipe DN 500 and DN 600: 6 bar
Pipe DN 700: 4 bar and Pipe DN 800: 2 bar.
Our clamps can be modified to cope with higher working pressures.
Material specification:
- All metal parts: stainless steel AISI 304.
- Metal parts have been deburred and are passivated to restore the corrosion resistance to its original state after the welding process.
- Triple band (three sections) with a working range of 30-33 mm depending on the diameter.
- Standard certified rubber gaskets EPDM or NBR. The rubber is tapered and has a waffle pattern.
- Seamless rubber lining for every clamp diameter.
- Bridge plates are vulcanized into the rubber gasket.
- U-shaped lifter bar.
- Stainless steel, electrolytic zinc plated nuts to prevent galling.
- Stainless steel washers.
- No loose parts that may get lost during installation.
- No special tools required: a simple wrench will do the job.
- Special tape is used to fix the rubber gasket to the stainless steel band. This tape is flexible and reinforced with glass fibre thread to withstand hot and humid conditions and guarantee a long storage capability.
- Under most circumstances the clamps can be installed without releasing the pressure on the pipe.
- The clamps are packed into strong double-rib cartons. For export overseas we use strong, seaworthy crates.