... the biggest jacking force:70TStandard of BYJ18-21/35 belt to press operation device, bop system static sealing pressure for ... 35Mpa/5000Psi, dynamic seals pressure for 21Mpa/3000PsiAccording to different pressure situation of complete set plants have four different ... , promoted tubing, and through setting up3,When the pressure to achieve 15-21Mpa, can use two special fast special single ...