Grayloc Clamp Connectors and Flanges

Esbjerg Oiltool A/S is the official distributor and representative of Grayloc Products in Denmark.

Carbon and Low Alloy

ASTM A105, A350 LF2

High Yield

ASTM A694 F52, F60, F65

Chromium Molybdenum

ASTM A182 F1, F5, F9, F11, F22, F91

Austenitic Stainless Steels

ASTM A182 F316, ASTM A182 F44

Ferritic Stainless steels

ASTM A182 F51, ASTM A182 F53+F55

Clamps to suit hubs are available from stock in B7M & L7 materials, c/w bolting in L7/7 H.D.G

Seal rings to suit hubs are available from stock in AISI 630SS & AISI 4140 materials.

All other material grades for clamps and seal rings can be supplied upon request.


​Esbjerg Oiltool A/S

Håndværkervej 67
6710 Esbjerg V 


Tel.: (+45) 75 15 64 00

CVR: DK10458374