Annular blowout preventer with spherical rubber

Wearing-resistant belt protection is widened on the basis of the original structure, which can prevent and improve the cylinder score incurred due to unbalanced loading of piston.

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Product Description

Product Description

The annular blowout preventer with spherical rubber core is composed of top covar, shell, piston, spherical rubber core and dust-proof coil.Structure and features： 

♦Total exchange of rubber core and HTDRIL 

♦Wearing-resistant belt protection is widened on the basis of the original structure, which can prevent and improve the cylinder score incurred due to unbalanced loading of piston.

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Technical parameter of the annular blowout preventer with spherical rubber core

Model	Drift diameter(MM)	Working Pressure(MPa/psi)	StrengthTesting Pressure(MPa/psi)	HydraulicControlPressure(MPa/psi)	Close-cavity volume of fuel tank( L)	Open-cavity volume of fuel tank( L)	Dimensions(mm) A B C D E	Weight(KG)	HydraulicOil outputconnection
FH18-21	179.4	21/3000	42/6000	≤10.5/1500	20	13	705 740 125 315 243	1200	NPT1*
FH18-35	179.4	35/5000	52/7450	≤10.5/1500	21	15	745 797 169 309 220	1500	NPT1*
FH23-21	228.6	21/3000	42/6000	≤10.5/1500	34	22.8	902 838 128 494 260	2398	VNPT1*
FH23-35	228.6	35/5000	52/7450	≤10.5/1500	42	33	1016 860 110 500 262	2986	NPT1*
FH28-21	279.4	21/3000	42/6000	≤10.5/1500	50	39	1013 873 164 361 258	2950	RC1/2*
FH28-35	279.4	35/5000	52/7450	≤10.5/1500	72	56	1146 1110 232 434 313	4675	NPT1*
FH35-35	346.1	35/5000	52/7450	≤10.5/1500	94	69	1271 1176 223 467 338	6415	NPT1 1/2*
FH48-35	425.3	35/5000	52/7450	≤10.5/1500	220	171	1683 1558 296 1410 534	16000	NPT1*
FH53-21	527.0	21/3000	52/7450	≤10.5/1500	173	110	1375 1293 260 569 414	6994	RC1/2*
FH54-35	539.8	35/5000	52/7450	≤10.5/1500	241	181	2240 1718 315 1201 564	20230	NPT1*