USA-BOPS' Variable Bore Ram Rubbers ("VRB") are designed to seal around a variety of pipe sizes.

USA-BOPS also provides the "VBR" Ram Block in both 11" and 13-5/8" sizes to fit Cameron Type U Blowout Preventers. The finger insert design rotates as the hydraulic pressure is applied and the ram blocks begin to close allowing the ram rubber to seal around a variety of pipe sizes and eliminating changing ram rubbers each time you change pipe sizes. 

TYPE VBR RAM RUBBERS
	ITEM NUMBER	DESCRIPTION	11 X 5M/10M	13-5/8 X 5M/10M
	1	Assembly 2-7/8"-5"	645360-01	645166-01
	1	Assembly 4-1/2"-7"	******	46675-01
	2	Ram Block 2-7/8"-5"	644836-01	644744-01
	2	Ram Block 4-1/2"-7"	******	46671-01
	3	VBR 2-7/8"-5"	644926-01	645089-01
	3	VBR 4-1/2"-7"	******	644924-01
	4	Top Seal (all)	19270	644223-02

NOTE:"VBR" rubbers and top seals do not fit standard Type U ram blocks, but are interchangeable with OEM rubbers and blocks.

CAMERON is a registered trademark.

Back to Cameron Type U Products