Weld-on collar

RM® manufactures and distributes S355 (ST52) steel welding collars for various types and diameters of pipes. Suitable for the most popular connection systems in the market of concrete distribution lines and cement mortars in general.

Weld-on rings for every connecting system:

SK/METRIC

Collars particularly suitable for distribution lines with working pressures from 85 to 130 bar. Mainly used for concrete distribution booms as they allow the rotation of pipes.

metric rings

PART# DN mm D mm H H1
AN.20.38 50 60 38 -
AN.25.38 61 73 38 -
AN.30.35.50 50 89 35 -
AN.30.35.63 63 89 35 -
AN.30.35.75 75 89 35 -
AN.34.35 73 97 35 -
AN.34.35.81 81 97 35 -
AN.40.35+3 100 114 35 38
AN.40.38 100 114 38 -
AN.40.50.77 77 115 50 -
AN.45.35 100 127 35 -
AN.45.35+3-0 100 127 35 38
AN.50.35+3 125 140 35 38
AN.55.35 125 148 35 -
AN.55.35+3-0 125 148 35 38
AN.60.45 150 168 45 -
AN.65.45 150 178 45 -
AN.70.45 180 200 45 -

 

CONICAL

Particularly suitable for distribution lines with working pressures up to 150 bar. Conical collars ensure maximum rigidity and tightness of the pipeline.

weld-on rings
PART# DN mm D mm H H1
AN.ORZ.4.F 100 146 35 29.5
AN.ORZ.4.M 100 146 35 29
AN.ORZ.5.F 125 167.5 35 30
AN.ORZ.5.M 125 167.5 35 29
AN.ORZ.6.F 150 198 35 30.5
AN.ORZ.6.M 150 198 35 30
AN.ORZ.75.F 180 227 38 33
AN.ORZ.75.M 180 227 35 30
weld-on rings
PART# DN mm D mm H
AN.ORZ.5.P 125 167.5 35
AN.ORZ.5.PF 125 167.5 30
AN.ORZ.6.P 150 198 35
AN.ORZ.6.PF 150 198 30.5

HD – HEAVY DUTY

Suitable for applications with high working pressures from 85 up to 300 bar. They provide good rigidity and sealing while allowing slight movements of the pipe.

weld-on rings

PART# DN mm D mm H
AN.2HD.35 50.8 77.7 35
AN.25HD.35 63.5 82.5 35
AN.3HD.35 76.2 106.2 35
AN.4HD.35 100 131.6 35
AN.5HD.35 125 157 35

 

MALE/FEMALE

Male/female rings ensure a rigid connection with no backlash.

weld-on rings
weld-on rings
PART# DN mm D mm H H1
AN.SCH.5.F 125 166 35 -
AN.SCH.5.M 125 166 35 28
AN.SCH.6.F 150 193 35 -
AN.SCH.6.M 150 193 35 28

ZX

They ensure maximum rigidity between collar and coupling. Particularly suitable for heavy-duty applications with high working pressures, 150/200 bar.

weld-on rings
PART# DN mm D mm H H1
AN.ZX.5.F 125 175 40 31.5 20°
AN.ZX.5.M 125 175 35 33 20°
AN.ZX.6.F 150 205 40 32 15°
AN.ZX.6.M 150 205 35 32 15°

CHROME CARBIDES

Chrome carbide collars are made for the SK/metric connection system. The outer part of the collar is made of S355 (ST52) steel while the inner part in steel alloy and chromium carbides to ensure high resistance to abrasion. Mainly used for the production of double wall pipelines and in particularly critical points of the pipeline.

weld-on rings
weld-on rings
PART# DN mm D mm H H1
AN.45.35CC 100 127 35 -
AN.45.40+10CC 100 127 40 50
AN.45.40CC 100 127 40 -
AN.47.40+10CC 110 148 40 50
AN.55.35CC 125 148 35 -
AN.55.40+10CC 125 148 40 50
AN.5HF.40CC 125 148 40 -
AN.5HF.40+15-0CC 125 148 40 55

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VAT 00581130390  -  REA: RA-114274  -  Capitale sociale I.V.: € 110.000