Our inventory of Cameron Variable Bore Rams ranges from 7-1/16 inches to 21-1/4 inches, with working pressures of 5M, 10M and 15M. We carry types “T”, “TL”, “U” and “UII” variable bore rams. Please refer to the graphs below for variable bore ram specifications:
Click here to download our variable bore ram specification chart.
| Bore Size | 7-1/16" | 7-1/16" | 7-1/16" | 11" | 11" | 11" | 13-5/8" | 13-5/8" | 13-5/8" | 16-3/4" | 16-3/4" | 18-3/4" | 18-3/4" | 18-3/4" |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Working Pressure (psi) | 5M | 10M | 15M | 5M | 10M | 15M | 5M | 10M | 15M | 5M | 10M | 5M | 10M | 15M |
| Type | "T" | "T" | "T" | "T" | "T" | "T" | "T" | "T" | "T" | "T" | "T" | "T" | "T" | "T" |
| VBR Ranges | * | * | * | * | * | * | * | 2-7/8" To 5" | * | * | * | * | * | 3-1/2" To 5-1/2" |
| VBR Ranges | * | * | * | * | * | * | * | 3-1/2" To 5-1/2" | * | * | * | * | * | 3-1/2" To 5-7/8" |
| VBR Ranges | * | * | * | * | * | * | * | * | * | * | * | * | * | 3-1/2" To 6-5/8" |
| VBR Ranges | * | * | * | * | * | * | * | * | * | * | * | * | * | 3-1/2" To 7-5/8" |
| Bore Size | 7-1/16" | 7-1/16" | 7-1/16" | 11" | 11" | 11" | 13-5/8" | 13-5/8" | 13-5/8" | 16-3/4" | 16-3/4" | 18-3/4" | 18-3/4" | 18-3/4" |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Working Pressure (psi) | 5M | 10M | 15M | 5M | 10M | 15M | 5M | 10M | 15M | 5M | 10M | 5M | 10M | 15M |
| Type | "TL" | "TL" | "TL" | "TL" | "TL" | "TL" | "TL" | "TL" | "TL" | "TL" | "TL" | "TL" | "TL" | "TL" |
| VBR Ranges | * | * | * | * | * | * | * | * | * | * | * | * | * | 3-1/2" To 5-1/2" |
| VBR Ranges | * | * | * | * | * | * | * | * | * | * | * | * | * | 3-1/2" To 5-7/8" |
| VBR Ranges | * | * | * | * | * | * | * | * | * | * | * | * | * | 3-1/2" To 6-5/8" |
| VBR Ranges | * | * | * | * | * | * | * | * | * | * | * | * | * | 3-1/2" To 7-5/8" |
| Bore Size | 7-1/16" | 7-1/16" | 7-1/16" | 11" | 11" | 11" | 13-5/8" | 13-5/8" | 13-5/8" | 16-3/4" | 16-3/4" | 18-3/4" | 18-3/4" | 21-1/4" | 21-1/4" |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Working Pressure (psi) | 5M | 10M | 15M | 5M | 10M | 15M | 5M | 10M | 15M | 5M | 10M | 5M | 10M | 5M | 10M |
| Type | "U" | "U" | "U" | "U" | "U" | "U" | "U" | "U" | "U" | "U" | "U" | "U" | "U" | "U" | "U" |
| VBR Ranges | 2-3/8" To 3-1/2" | 2-3/8" To 3-1/2" | 2-3/8" To 3-1/2" | 2-7/8" To 5" | 2-7/8" To 5" | 2-7/8" To 5" | 2-7/8" To 5" | 2-7/8" To 5" | 3-1/2" To 5" | 5" To 7" | 3-1/2" To 5-1/2" | 3-1/2" To 7-5/8" | 3-1/2" To 7-5/8" | 2-7/8" To 5-7/8" | 2-7/8" To 5-7/8" |
| VBR Ranges | 2-7/8" To 4" | 2-7/8" To 4" | 2-7/8" To 4" | 3-1/2" To 5-1/2" | 3-1/2" To 5-1/2" | * | 3-1/2" To 5-1/2" | 3-1/2" To 5-1/2" | 3-1/2" To 5-1/2" | * | 5" To 7" | * | * | * | * |
| VBR Ranges | * | * | * | * | * | * | 3-1/2" To 5-7/8" | 3-1/2" To 5-7/8" | 3-1/2" To 5-7/8" | * | * | * | * | * | * |
| VBR Ranges | * | * | * | * | * | * | 4-1/2" To 7" | 4-1/2" To 7" | 5" To 7" | * | * | * | * | * | * |
| Bore Size | 7-1/16" | 7-1/16" | 7-1/16" | 11" | 11" | 11" | 13-5/8" | 13-5/8" | 13-5/8" | 16-3/4" | 16-3/4" | 18-3/4" | 18-3/4" | 18-3/4" |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Working Pressure (psi) | 5M | 10M | 15M | 5M | 10M | 15M | 5M | 10M | 15M | 5M | 10M | 5M | 10M | 15M |
| Type | "UII" | "UII" | "UII" | "UII" | "UII" | "UII" | "UII" | "UII" | "UII" | "UII" | "UII" | "UII" | "UII" | "UII" |
| VBR Ranges | * | * | * | * | * | * | * | * | * | * | * | * | 2-7/8" To 5" | 3-1/2" To 5" |
| VBR Ranges | * | * | * | * | * | * | * | * | * | * | * | * | 3-1/2" To 5-1/2" | 3-1/2" To 5-1/2" |
| VBR Ranges | * | * | * | * | * | * | * | * | * | * | * | * | 3-1/2" To 7-5/8" | 5" To 7-5/8" |