Bow Spring Centralizer

API 10D Standard

Single Piece, Hinged and Slip-on Types or Without Welding

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Product Description

Product Parameters

Bow spring centralizers have slightly larger diameter than the wellbore, which is effective in vertical and slightly deviated wellbores to centralize the casing in borehole so as to improve the cementing efficiency.

Bow spring centralizers are available in single piece, hinged and slip-on types or without welding process.

Adjustable bow heights and full ranges of sizes ranging from 4-1/2" to 20" can satisfy almost all cementing projects in oil and gas cementing constructions.

The starting force testing and restoring force testing of our bow spring centralizers are performed in accordance with API 10D Standards.

Popular Specifications of Bow Spring Centralizers

Size (inch)	Bow Quantity	Outside Diameter	Inner Diameter	Overall Length
4-1/2" × 6"	4	160	116	450/575
4-1/2" × 6-1/4"	4	167	116	450/575
4-1/2" × 7-7/8"	4	210	116	450/575
4-1/2" × 8-1/2"	4	230	116	450/575
5" × 6"	4	160	128	450/540
6" × 6-3/4"	4	180	128	450/575
5" × 7-7/8"	4	210	128	450/575
5-1/2" × 7-7/8"	5	210	140	450/575
5-1/2" × 8-1/2"	5	216/245	140	450/575
5-1/2" × 8-3/4"	5	222/250	140	450/575
5-1/2" × 9-7/8"	5	251/264	140	450/575
5-1/2" × 9-1/2"	5	242/264	140	450/575
7" × 8-1/2"	6	216/230	179	450/575
7" × 8-3/4"	6	222/233	179	450/575
7" × 9-1/2"	6	242/264	179	450/575
7" × 9-7/8"	6	251/264	179	550/650
9-5/8" × 12-1/4"	8	346	245	550/650
9-5/8" × 13-3/8"	8	346/352	245	550/650
9-5/8" × 12-13/16"	8	378	245	550/650
10-3/4" × 14-3/4"	9	405	275	550/650
10-3/4" × 15-1/2"	9	374	275	550/650
13-3/8" × 17-1/2"	10	440/466	342	550/650
13-5/8" × 17-1/2"	12	440/466	342	550/650
20" × 26"	12	696	510	550/610/650