HRSB Rongsheng 7 1/16〃-10,000 Ram Assembly
HRSB Rongsheng Single Ram BOP FZ18-70 P/N: RS11157
HRSB Rongsheng Double Ram BOP 2FZ18-70 P/N: RS11158
Ram Assembly Parts List
1 2 3 4
Item Ram Assembly Top seal Front seal packer Ram block
Size 1 1 1 1
Blind C.S. O RS11180.35.00a RS11180.35.03 RS11180.35.02a RS11180.35.01a
2 3/8″ RS11180.35.00d RS11180.35.02d RS11180.35.01d
2 7/8″ RS11180.35.00b RS11180.35.02b RS11180.35.01b
3 1/2″ RS11180.35.00c RS11180.35.02c RS11180.35.01c
4″ RS11180.35.00J RS11180.35.02J RS11180.35.01J
4 1/2″ RS11180.35.00f RS11180.35.02f RS11180.35.01f
Φ5.6 Cable RS11180.35.00i RS11180.35.02i RS11180.35.01i
Φ8 Cable RS11180.35.00g RS11180.35.02g RS11180.35.01g
Φ12 Cable RS11180.35.00e RS11180.35.02e RS11180.35.01e
2 7/8-3 1/2 Variable RS11180.35.00h RS11180.35.02h RS11180.35.01h
Piston Shaft Seal parts list
Item Part No. Name Qty
1 RS11157.20 Retaining ring 1
2 RS11157.17 Ram shaft sealing ring 86X16 1
3 JB/ZQ4264 Yx-shaped sealing ring 200 2
4 RS11180.27 Yx-shaped sealing ring 82X14 2
5 GB/T3452.1 O-ring seal 70X5.3 3
6 RS11157.04 piston 1
Bonnet combined seal parts list
Item Name Part No. Qty. Remark
Bonnet seal (assembly) RS11198.17.00 1
1 Bonnet seal frame RS11198.17.01 1
2 Rubber spring RS11198.17.03 2
3 O ring RS11198.17.02 1
4 O ring RS11198.17.02 1
HRSB Rongsheng FZ18-70/2FZ18-70 Parts list
Item Name Qty Part NO. Remark
1 Bolt M16X40 8 GB/T5783
2 Shield 2 RS11157.10
3 Lock shaft 2 RS11157.08
4 Cylinder head 2 RS11157.05
5 O-ring 190X5.3 4 GB/T3452.1
6 Left cylinder 1 RS11157.25
6A Right cylinder 1 RS11157.03
7 Piston shaft seal 2pair Table 7
8 Left Bonnet 1 RS11157.26B
8A Right Bonnet 1 RS11157.02B
9 O-ring 40X3.55 4 GB/T3452.1
10 Bonnet seal ring assembly 2 RS11198.17.00
11 Ram assembly 2 Table 6
12 Body (single) 1 RS11157.01
12A Body(double) RS11158.01
13 O-ring 35X3.1 2 GB1235
14 Plug NPT1 2 F9301.29
15 Screw M14X25 8 GB/T70.1
16 Inlet flange 2 RS11157.16
17 Plug R1/2 4
18 Side door hanger 4 RS11157.12
19 Screw M12X20 16 GB/T70.1
20 Side door bolt 8 RS11157.27
21 O-ring 23.6X2.65 6 GB/T3452.1
22 M27 cylinder connecting bolt 16 RS11157.06
23 M27 cap nut 16 RS11832.02
Repair kits
Item Name Qty. Part No. Remark
10 Bonnet Seal 1 RS11198.17.00
9 O Ring 40X3.55 2 GB/T3452.1
13 O Ring 35X3.1 1 GB1235
21 O Ring 23.6X2.65 1 GB/T3452.1
5 O Ring 190X5.3 2 GB/T3452.1
25 Piston shaft seal
Retaining ring 1 RS11157.20
Ram shaft sealing ring 86X16 1 RS11157.17
Yx-shaped sealing ring 200 2 JB/ZQ4264
Yx-shaped sealing ring 82X14 2 RS11180.27
O-ring seal 70X5.3 3 GB/T3452.1
Part NO. d S(mm) M(mm) e(mm) Weight kg
Metric Imperial
11706.01 M12 1/2 22 12 25.4 0.03
11706.02 M16 5/8 27 15.5 31.1 0.05
11706.03 M20 3/4 31.8 19 34.7 0.09
11706.04 M22 7/8 36 22 41.6 0.1
11706.05 M24 1 41 25 47.3 0.19
11706.06 M27 41 28 47.3 0.19
11706.07 M30X3 1 1/8 46 28 53.1 0.25
11706.08 M33X3 1 1/4 50 31 57.7 0.32
11706.09 M36X3 1 3/8 55 34 63.5 0.42
11706.10 M39X3 1 1/2 60 37 69.3 0.54
11706.11 M42X3 1 5/8 65 41 75.1 0.7
11706.12 M45X3 1 3/4 68 44 78.5 0.8
11706.13 M48X3 1 7/8 74 47 85.4 1.12
11706.14 M50X3 2 77 50 88.9 1.67
11706.15 M52X3 77 50 88.9 1.67
11706.16 M58X3 2 1/4 88 56 101.6 1.78
11706.17 M64X3 2 1/2 98 63 113.1 2.32
11706.18 M70X3 2 3/4 105 68 121.2 2.78
11706.19 M76X3 3 115 75 132.8 3.7
11706.20 M80X3 3 1/4 125 81 144.3 4.89
HRSB Rongsheng 7 1/16〃-10,000 Ram Assembly
HRSB Rongsheng Double Ram BOP 2FZ18-70 P/N: RS 11959
HRSB Rongsheng Single Ram BOP FZ18-70 P/N: RS11958
Ram Assembly Parts List
Item 1 2 3 4
Name Ram Assembly Top seal Front seal packer Ram block
Size 1 1 1 1
Blind C.S. O RS11958.35.00a RS11180.35.03 RS11180.35.02a RS11958.35.01a
2 3/8″ RS11958.35.00d RS11180.35.02d RS11958.35.01d
2 7/8″ RS11958.35.00b RS11180.35.02b RS11958.35.01b
3 1/2″ RS11958.35.00c RS11180.35.02c RS11958.35.01c
4 1/2″ RS11958.35.00f RS11180.35.02f RS11958.35.01f
4″ RS11958.35.00J RS11180.35.02J RS11958.35.01J
2 7/8″-3 1/2″ RS11958.35.00h RS11180.35.02h RS11958.35.01h
Φ8 Cable RS11958.35.00g RS11180.35.02g RS11958.35.01g
Φ5.6 Cable RS11958.35.00i RS11180.35.00i RS11958.35.01i
Φ12 Cable RS11958.35.00e RS11180.35.02e RS11958.35.01e
Shear Ram Assembly Parts List:
Item Part No. Name Qty Remark
1 RS11180.35.03 Ram top seal 2
2 RS11181.06E.03 Shear ram knife body seal 1
3 RS11958.13.01 Shear ram upper ram block 1
4 RS11958.13.04 Shear Ram Bonnet seal I 2
5 RS11958.13.03 Shear Ram Bonnet sealII 2
6 RS11958.13.02 Shear Ram Lower Ram Block 1
Piston seal parts list
Item Part No. Name Qty
1 RS11157.17 Ram shaft seal ring 1
2 RS11157.20 Retaining ring 1
3 FZ897.1.8 Piston seal 2
4 RS11180.27 Yx type seal ring 2
5 GB/T3452.1 O-ring seal 70X5.3 3
BONNET Combined Seal Parts List
Item Name Part No Qty
Bonnet Seal Assembly RS11198.17.00 1
1 Bonnet Seal frame RS11198.17.01 1
2 Rubber Spring RS11198.17.02 2
3 O Ring RS11198.17.03 2
HRSB Rongsheng Double Ram BOP 2FZ18-70 Parts List
Item Part NO. Qty. Part No.
1 Body 1 RS11958.05
1A Body 1 RS11959.05
2 Ram assembly 1付
3 Bonnet seal 2 RS11198.17.00
4 O-ring seal 46.2X5.3 4 GB/T3452.1
5 Bonnet 2 RS11958.04
6 O-ring seal 60X5.3 4 GB/T3452.1
7 O-ring seal 236X7 4 GB/T3452.1
8 Piston seal
9 piston 2 RS11958.06
10 Close Bonnet piston rod 2 RS11958.10
11 O-ring seal 80X5.3 8 GB/T3452.1
12 Cylinder 4 RS11958.09
13 Cylinder 2 RS11958.07
14 Cylinder head 2 RS11958.02
15 Locking lever 2 RS11958.08
16 Shield 2 RS11958.01
17 Screw M16X40 8 GB/T5783
18 M27 cap nut 16 RS11832.02
19 M27 cylinder coupling bolt 16 RS11958.03
20 Open the Bonnet piston rod 2 RS11958.10
21 Bonnet bolt 8 RS11157.27
22 Plug R1/2″ 8 RS11180.13
23 O-ring seal 35X3.1 2 GB/T3452.1
24 Inlet flange 2 RS11157.16
25 Plug NPT 1″ 2 F9301.29
26 Screw M14X25 8 GB/70.1
27 Guide rod 4 RS11958.14
Easy wear parts list
Item Name Qty Part No. Remark
1 Bonnet Sea. 2 RS11198.17.00 Table 8
2 O Ring 46.2X5.3 4 GB/T3452.1
3 O Ring 60X5.3 4 GB/T3452.1
4 O Ring 236X7 4 GB/T3452.1
5 O Ring 80X5.3 8 GB/T3452.1
6 O Ring 70X5.3 6 GB/T3452.1
7 O Ring 35X3.1 2 GB/T3452.1
8 Ram shaft Seal 2 RS11157.17
9 Piston Seal 4 FZ897.1.8
10 Yx Type Seal 4 RS11180.27
11 O Ring 70X5.3 6 GB/T3452.1
HRSB Rongsheng 7 1/16〃-10,000 Ram Assembly
HRSB Rongsheng Single Ram BOP FZ18-70 P/N: RS11857
HRSB Rongsheng Double Ram BOP 2FZ18-70 P/N: RS11858
HF type Ram Assembly parts (cast)
Item 1 2 3 4
Name Ram Assembly Top Seal Front seal packer Ram Block
Size 1 1 1 1
Blind C.S.O RS11858.04.01.00 RS11858.04.01.02 RS11138.03.01.02 RS11858.04.01.01
2 3/8″ RS11858.04.02.00 RS11858.04.01.02 RS11138.03.02.02 RS11858.04.02.01
2 7/8″ RS11858.04.03.00 RS11858.04.01.02 RS11138.03.03.02 RS11858.04.03.01
3 1/2″ RS11858.04.04.00 RS11858.04.01.02 RS11138.03.04.02 RS11858.04.04.01
4 1/2″ RS11858.04.05.00 RS11858.04.01.02 RS11138.03.05.02 RS11858.04.05.01
Φ12 cable RS11858.04.06.00 RS11858.04.01.02 RS11138.03.06.02 RS11858.04.06.01
2 7/8″-3 1/2″ RS11858.04.07.00 RS11858.04.01.02 RS11138.03.07.02 RS11858.04.04.01
Φ8 cable RS11858.04.08.00 RS11858.04.01.02 RS11138.03.08.02 RS11858.04.08.01
4″ RS11858.04.09.01 RS11858.04.01.02 RS11138.03.09.02 RS11858.04.09.01
1.9″ RS11858.04.10.00 RS11858.04.01.02 RS11138.03.10.02 RS11858.04.10.01
Table6B： HF type Ram Assembly parts(Forge)
Item 1 2 3 4
Name Ram Assembly Top Seal Front seal packer Ram Block
Size 1 1 1 1
Blind C.S.O RS11858.11.01.00 RS11858.04.01.02 RS11138.03.01.02 RS11858.11.01.01
2 3/8″ RS11858.11.02.00 RS11858.04.01.02 RS11138.03.02.02 RS11858.11.02.01
2 7/8″ RS11858.11.03.00 RS11858.04.01.02 RS11138.03.03.02 RS11858.11.03.01
3 1/2″ RS11858.11.04.00 RS11858.04.01.02 RS11138.03.04.02 RS11858.11.04.01
4 1/2″ RS11858.11.05.00 RS11858.04.01.02 RS11138.03.05.02 RS11858.11.05.01
Φ12 cable RS11858.11.06.00 RS11858.04.01.02 RS11138.03.06.02 RS11858.11.06.01
2 7/8″-3 1/2″ RS11858.11.07.00 RS11858.04.01.02 RS11138.03.07.02 RS11858.11.04.01
Φ8 cable RS11858.11.08.00 RS11858.04.01.02 RS11138.03.08.02 RS11858.11.08.01
4″ RS11858.11.09.01 RS11858.04.01.02 RS11138.03.09.02 RS11858.11.09.01
1.9″ RS11858.11.10.00 RS11858.04.01.02 RS11138.03.10.02 RS11858.11.10.01
Shear Ram parts list
Item Part No. Name Qty
1 RS11858.04.11.01 Upper shear ram 1
2 RS11858.04.11.02 Upper shear ram packer 1
3 RS11858.04.11.03 Lower shear ram 1
4 RS11858.04.11.04 Lower shear ram packer 1
Ram shaft Seal Parts Lis
Item Part No. Name Qty.
1 GB/T893.1 Retaining ring 115 1
2 F9301.27 Pressure ring 1
3 F9301.26 W type sealing ring A 4
4 F9301.25 Pressure ring A 1
5 GB/T3452.1 0 type seal ring 90X3.55 2
6 GB/T3452.1 0 type seal ring 103X3.55 2
7 F9301.24A Support sealing sleeve 1
8 RS11153.04 Seal ring assembly 1
Ram shaft Seal parts list
Item Part No. Name Qty.
1 GB/T893.1 Retaining ring 115 1
2 RS11920.11 Mud scraper 1
3 RS11181.20 Mud scraper seat 1
4 RS11920.09 Support ring 1
5 RS11181.21 Seal ring assembly 1
6 GB/T3452.1 O-ring seal 103X3.55 2
7 F9301.24A Support seal sleeve 1
8 GB/T3452.1 O-ring seal 90X3.55 2
9 RS11153.04 Seal ring assembly 1
Secondary Seal parts list
Item Part NO. Name Qty
1 RS11148.12 NPT 1 plug 1
2 RS11148.13 Compression plug 1
3 Secondary seal grease 1
4 RS11148.14.00 Check valve 1
5 RS11148.20 Hole plug R1/2 1
Lock shaft Seal parts
Item Part No Name Qty
1 GB/T893.1 Retaining ring 95 1
2 F751.14.21 Thrust sleeve 1
3 F751.14.19 Pressure ring 3
4 F751.14.20 W-shaped seal ring 1
5 F751.14.18 Dust ring seat 1
6 F751.14.17 Dust ring 1
Bonnet combined seal parts
Item Name Part No. Qty Remark
Bonnet seal assy RS11858.05.00 1
1 Bonnet seal frame RS11858.05.01 1
2 O Ring 296×7 RS11858.05.02 1
3 O Ring 310×7 RS11858.05.03 1
4 Rubber Spring RS11858.05.04 2
Parts List
Item Name Qty. Part No.
1 Body (single) 1 RS11857.01
1A Body (double) 1 RS11858.02
2 Seal ring BX153 1 API 6A
3 2 9/16-10M blind flange 1 RS48057. 41
4 Bolt M22X115 8 RS11709. 04. 02
5 Nut M22 8 RS11706. 04
6 Taper pin 2 F9301. 32
7 Ram assembly 2
8 Ram shaft 2 RS11858.06
9 Side door seal 2 RS11858. 05. 00
10 Ram shaft seal 2set
11 Secondary seal 2set
12 Right Bonnet 1 RS11858.07
12A Left Bonnet 1 RS11858.01
13 Bonnet bolt 16 F9403. 04
14 Hydraulic cylinder 2 RS11858.08
15 piston 2 RS11850.09
16 Yx seal ring 4 RS11161. 18. 05
17 Round nut I 2 RS11850.10
18 Right cylinder head 1 RS11850.12
18A Left cylinder head 1 RS11850.01
19 Cap nut 16 F9301.02
20 Hydraulic cylinder connecting bolt 16 RS11858.09
21 Lock shaft seal 2组
22 Lock shaft 2 RS11160.09
23 0-shaped seal ring 288X5.3 4 GB/T3452. 1
24 Round Nut II 2 RS11850.11
25 0-ring 85X3.1 2 GB1235
26 0-ring 26.5X3.55 8 GB/T3452. 1
27 Oil pipe 2 RS11858.10
28 Plug 10
29 0-shaped seal ring 32.5X3.55 4 GB/T3452. 1
30 Hinge seat 4 F9301.07
31 Positioning pin 8 RS11160.02
32 Screw M20x35 8 RS11148.05
33 Hexagon bolt M20X95 16 GB/T5780
34 O-ring 43.7×3.55 10 GB/T3452. 1
35 Screw M16X40 8 GB/T5780
36 Plug 2 F9301. 29
37 Oil pipe seat 2 F9301.30A
Repair kits（produce before 2013 year）
Item Name Qty. Part No
10 Ram Shaft Seal
Seal ring assembly 1 RS11153.04
0 type seal ring 90X3.55 2 GB/T3452.1
0 type seal ring 103X3.55 2 GB/T3452.1
Pressure ring A 1 F9301.25
W type sealing ring A 4 F9301.26
21 Lock shaft Seal：
W-shaped seal ring 3 F751.14.20
Pressure ring 1 F751.14.19
Dust ring 1 F751.14.17
16 Yx sealing ring 2 RS11161.18.05
23 O-ring seal 288X5.3 2 GB/T3452.1
25 O-ring 85X3.1 1 GB1235
26 O-ring seal 26.5X3.55 4 GB/T3452.1
29 O-ring seal 32.5X3.55 2 GB/T3452.1
34 O-ring seal 43.7X3.55 5 GB/T3452.1
Repair Kit（produce after 2013 year）
Item Name Qty. Part No
10 Ram Shaft Seal
Mud scraper 1 RS11920.11
Support ring 1 RS11920.09
Seal ring assembly 1 RS11181.21
O-ring seal 103X3.55 2 GB/T3452.1
O-ring seal 90X3.55 2 GB/T3452.1
Seal ring assembly 1 RS11153.04
21 Lock shaft Seal
W-shaped sealing ring 3 F751.14.20
Pressure ring 1 F751.14.19
Dust ring 1 F751.14.17
16 Yx sealing ring 2 RS11161.18.05
23 O-ring seal 288X5.3 2 GB/T3452.1
25 O-ring 85X3.1 1 GB1235
26 O-ring seal 26.5X3.55 4 GB/T3452.1
29 O-ring seal 32.5X3.55 2 GB/T3452.1
34 O-ring seal 43.7X3.55 5 GB/T3452.1
HRSB Rongsheng 7 1/16〃-10,000 Ram Assembly parts
HRSB Rongsheng Double Ram BOP 2FZ18-70 P/N: RS11959.00A
HRSB Rongsheng Single Ram BOP FZ18-70 P/N: RS11958.00A
Table 2：Ram Assembly parts list
Item 1 2 3 4
Name Ram Assembly Top seal Front seal packer Ram block
Size 1 1 1 1
Blind C.S. O RS11958.35.00A RS11180.35.03 RS11180.35.02a RS11958.35.01A
2 3/8″ RS11958.35.00D RS11180.35.02d RS11958.35.01D
2 7/8″ RS11958.35.00B RS11180.35.02b RS11958.35.01B
3 1/2″ RS11958.35.00C RS11180.35.02c RS11958.35.01C
4 1/2″ RS11958.35.00F RS11180.35.02f RS11958.35.01F
4″ RS11958.35.00J RS11180.35.02J RS11958.35.01J
2 7/8″-3 1/2″ RS11958.35.00H RS11180.35.02h RS11958.35.01H
Φ8 Cable RS11958.35.00G RS11180.35.02g RS11958.35.01G
Φ5.6 Cable RS11958.35.00I RS11180.35.00i RS11958.35.01I
Φ12 Cable RS11958.35.00E RS11180.35.02e RS11958.35.01E
Shear Ram Assembly Parts List:
Item Part No. Name Qty Remark
1 11180.35.03 Ram top seal 2
2 11181.06E.03 Shear ram knife body seal 1
3 11958.13.01 Shear ram upper ram block 1
4 11958.13.04 Shear Ram Bonnet seal I 2
5 11958.13.03 Shear Ram Bonnet seal II 2
6 11958.13.02 Shear Ram Lower Ram Block 1
able 7：Piston seal parts list
Item Part No. Name Qty
1 RS11157.17 Table 8 BONNET Combined Seal Parts List 1
2 RS11157.20 Table 8 BONNET Combined Seal Parts List 1
3 FZ897.1.8 Piston seal 2
4 RS11180.27 Yx type seal ring 2
5 GB3452.1 O-ring seal 70X5.3 3
BONNET Combined Seal Parts List
Item Name Part No Qty
Bonnet Seal Assembly RS11198.17.00 1
1 Bonnet Seal frame RS11198.17.01 1
2 Rubber Spring RS11198.17.02 2
3 O Ring RS11198.17.03 2
HRSB Rongsheng Double Ram BOP 2FZ18-70 Parts List
Item Part NO. Qty. Part No.
1 Body 1 RS11958.05A
1A Body 1 RS11959.05A
2 Ram assembly 1Pair
3 Bonnet seal 2 RS11198.17.00
4 O-ring seal 46.2X5.3 4 GB3452.1
5 Bonnet 2 RS11958.04
6 O-ring seal 60X5.3 4 GB3452.1
7 O-ring seal 236X7 4 GB3452.1
8 Piston seal
9 piston 2 RS11958.06A
10 Close Bonnet piston rod 2 RS11958.10A
11 O-ring seal 80X5.3 8 GB3452.1
12 Cylinder 4 RS11958.09A
13 Cylinder 2 RS11958.07
14 Cylinder head 2 RS11958.02A
15 Locking lever 2 RS11958.08
16 Shield 2 RS11958.01
17 Screw M16X40 8 GB/T5783
18 M27 cap nut 16 RS11832.02
19 M27 cylinder coupling bolt 16 RS11958.03A
20 Open the Bonnet piston rod 2 RS11958.10A
21 Bonnet bolt 8 RS11157.27
22 Plug R1/2″ 8 RS11180.13
23 O-ring seal 35X3.1 2 GB3452.1
24 Inlet flange 2 RS11157.16
25 Plug NPT 1″ 2 F9301.29
26 Screw M14X25 8 GB/70.1
27 Guide rod 4 RS11958.14
Easy wear parts list
Item Name Qty Part No. Remark
1 Bonnet Seal 2 RS11198.17.00 Table 8
2 O Ring 46.2X5.3 4 GB3452.1
3 O Ring 60X5.3 4 GB3452.1
4 O Ring 236X7 4 GB3452.1
5 O Ring 80X5.3 8 GB3452.1
6 O Ring 70X5.3 6 GB3452.1
7 O Ring 35X3.1 2 GB3452.1
8 Ram shaft Seal 2 RS11157.17
9 Piston Seal 4 FZ897.1.8
10 Yx Type Seal 4 RS11180.27
11 O Ring 70X5.3 6 GB3452.1