The Ram BOP Hydril Type Mini U Type and S Type

Specification&Model

Main Bore
mm(in)

Working Pressure
MPa(psi)

Oil quantity for opening （Single Cylinder）

Oil quantity for closing（Single Cylinder）

Ram Type

Ram Size
(in)

               FZ18-212FZ18-21

180(7 1/16)

21

1.6

2

H

Max.5 9/16

180(7 1/16 in)series

FZ18-352FZ18-35

180(7 1/16)

35

1.6

2

H

Max. 5 9/16

FZ18-702FZ18-70

180(7 1/16)

70

2.2

2.5

H

Max.5 9/16

FZ18-1052FZ18-105

180(7 1/16)

105

7.4

8

H

Max.5 1/2

230(9in)series

FZ23-212FZ23-21

230(9)

21

1.3

1.5

HF

Max.7

FZ23-352FZ23-35

230(9)

35

4.7

5.3

HF

Max.7

FZ23-702FZ23-70

230(9)

70

7

8

H

Max.7

FZ23-1052FZ23-105

230(9)

105

10.2

10.9

HF

Max.7

280(11in)series

FZ28-212FZ28-21

280-11

21

2.7

3.2

S

Max.8 5/8

FZ28-352FZ28-35

280-11

35

5.4

6.2

S

Max.8 5/8

FZ28-702FZ28-70

280-11

70

7

8

H

Max.8 5/8

FZ28-1052FZ28-105

280-11

105

14.6

16.7

H

Max.7 5/8

346(13 5/8 in)series

FZ35-212FZ35-21

346(13 5/8)

21

7.8

8.9

S

Max.10 3/4

FZ35-352FZ35-35

346(13 5/8)

35

7.9

9.3

S

Max.10 3/4

FZ35-702FZ35-70

346(13 5/8)

70

18

20.7

HF

Max.10 3/4

FZ35-1052FZ35-105

346(13 5/8)

105

17.4

20

HF

Max.10 3/4

425(16 3/4in)

FZ43-352FZ43-45

425.5(16 3/4)

35

10.3

11.6

HF

Max.10 3/4

527(20 3/4in)

FZ53-212FZ53-21

527.1(20 3/4)

21

12.2

13.6

HF

Max.16

540(21 1/4 in)series

FZ54-142FZ54-14

540(21 1/4)

14

12.1

13.8

HF

Max. 16

FZ54-352FZ54-35

540(21 1/4)

35

26

29.6

HF

Max.16

680(26 3/4in)series

FZ68-212FZ68-21

680(26 3/4)

21

32.6

37

HF

Max.18 5/8”