Large Range Couplings

Large Range CouplingLarge-Range-Couplings-SYI-Pipeline

 

SYI is keeping on designing the series of coupling products for pursuing the better performance and easier operation.

New design and patterns could be developed based on customers’requirement.

SYI Series No. DN Pipe O.D. range D2 H L
mm inch mm inch mm mm mm
LRC-80 3” 80 83-108 3.27-4.25 225 120 240
LRC-100 4” 100 104-134 4.09-5.28 261 130 260
LRC-125 5” 125 125-155 4.92-6.10 286 140 265
LRC-150 6” 150 154-194 6.06-7.64 332 150 270
LRC-175 7” 175 190-230 7.48-9.06 367 150 270
LRC-200 8” 200 210-250 8.27-9.84 388 158 290
LRC-225 9′ 225 225-267 8.86-10.51 410 160 310
LRC-250 10” 250 267-310 10.51-12.20 463 180 310
LRC-300 12” 300 315-356 12.40-14.02 510 180 330
Category:

Description

Large Range Couplings

SPECIFICATIONS
Material:
BODY: Ductile iron grade 500-7/ 450-10 in accordance with ISO 1083 or 70-50-05/65-45-12 with ASTM A536

GLAND: Ductile iron grade 500-7/ 450-10 in accordance with ISO 1083 or 70-50-05/65-45-12 with ASTM A536

GASKET: Rubber E.P.D.M./SBR/NR in accordance with EN 681.1

D-BOLTS AND NUTS: Carbon steel grade 8.8 with dacromet coating
Working Pressure:
16/25 Bar or 250/350 PSI
Fluid Temperature:
0°C-50°C, excluding frost
Allowed Angular Deflection:
8°
Joint Gap:
20mm
Coating:
External coatings Internall coatings

liquid epoxy resin painting
epoxy applied by FBE
according to customers’ requirements

liquid epoxy resin painting
epoxy applied by FBE
according to customers’ requirements
Reference Rules:
Designed and tested in accordance with EN 14525, ANSI/AWWA C219 and EN 545
Use:
Large Range Couplings, designed by our own company in 2007 and applied the patent, with superwide range tolerance on O.D. (up to 43mm), are suitable for jointing plain-ended pipes with same or different materials and same or different outside diameters within the pipe O.D. ranges, and can replace the stepped couplings within the ranges.

The circumferentially ribbed, specially profiled gaskets in the high quality material, provide for smooth installation by minimizing contact friction and restrict to pull out.

The gasket also provide a leak tight seal across the O.D. range per nominal size and still allow for thermal expansion and contraction of the pipe up to 5mm per gasket, facilitated through gasket deformation.

The further more reasonable sizes and ranges can allow the pipes of main sizes in the most reasonable location (up to 5mm per gasket), and the gasket can be at the perfect situation after assembled.
Note: The accessories for Large Range Couplings are usually supplied by assembled on the body .

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