Straight Couplings

Straight Couplings

For Ductile Iron Pipe ISO 2531/EN545Straight-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. DZ H L O.D. Tolerance Min. pipe end prepared length
mm mm mm mm mm mm mm mm
SC1-40 40 56 120 102 166 +1.0 -3.0 100
SC1-50 50 66 126 102 166 +1.0 -3.0 100
SC1-60 60 77 135 102 166 +1.0 -3.0 100
SC1-65 65 82 156 102 166 +1.0 -3.0 100
SC1-80 80 98 184 102 166 +1.0 -3.0 100
SC1-100 100 118 205 102 166 +1.0 -3.0 100
SC1-125 125 144 232 102 166 +1.0 -3.0 100
SC1-150 150 170 264 102 173 +1.0 -3.0 100
SC1-200 200 222 315 102 173 +1.0 -3.5 100
SC1-250 250 274 374 102 173 +1.0 -3.5 100
SC1-300 300 326 426 102 173 +1.0 -3.5 100
SC1-350 350 378 494 152 254 +1.0 -3.5 150
SC1-400 400 429 544 152 254 +1.0 -4.0 150
SC1-450 450 480 595 152 254 +1.0 -4.0 150
SC1-500 500 532 650 152 254 +1.0 -4.0 150
SC1-600 6000 635 753 152 254 +1.0 -4.5 150
SC1-700 700 738 858 152 254 +1.0 -4.5 150
SC1-800 800 842 962 152 254 +1.0 -4.5 150
SC1-900 900 945 1070 178 280 +1.0 -5.0 150
SC1-1000 1000 1048 1173 178 280 +1.0 -5.0 150
SC1-1100 1100 1152 1282 178 280 +1.0 -6.0 150
SC1-1200 1200 1255 1385 178 280 +1.0 -6.0 150
SC1-1400 1400 1462 1592 178 295 +1.0 -6.0 150
SC1-1500 1500 1565 1798 178 295 +1.0 -6.0 150
SC1-1600 1600 1668 1798 178 295 +1.0 -6.0 150
SC1-1800 1800 1875 2015 254 375 +1.0 -6.0 150/300
SC1-2000 2000 2082 2222 254 375 +1.0 -6.0 150/300
SC1-2200 2200 2288 2415 254 375 +1.0 -6.0 150/300
Category:

Description

Straight 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

BOLTS AND NUTS: Carbon steel grade 8.8/6.8/4.8 with dacromet coating/galvanization
Working Pressure:
16/25 Bar or 250/350 PSI
Fluid Temperature:
0°C-50°C, excluding frost
Allowed Angular Deflection:
COUPLING SIZE ANGLE
80-400 ±6º
450-500 ±5º
600-700 ±4º
800-1100 ±3º
1200-1800 ±2º
2000 ±1º
The above schedule should only be used when the
pipes will not move in service. Where movement of
the pipes may occur subsequent to laying, we
recommend working to half these figures to allow
for in-service flexibility.
Joint Gap:
COUPLING SIZE RECOOMMENDED JOINT GAP MAX ACCUM GAP Consideration of actual temperature
movement or deflection conditions
may lead to different initial joint
gaps. The Maximum accumulated
gap above must not be exceeded
under any circumstances.
DN40-300 19mm 38mm
DN350-800 31mm 62mm
DN900-1600 38mm 76mm
DN1800-2200 57mm 114mm
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: Straight Couplings join pipes of the same outside diameter.
Note: The accessories for Straight Couplings are usually supplied by assembled on the body.

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