shenkai shaffer Pipe and blind Ram Assemblies
Top and bottom of ram aresymmetric. When top surface of theram rubber has been wornseriously, another side can be usedto prolong rubber life. Ramassembly consists of ram block,holder, rubber and retracting screw.
For various size drilling tools, onlyneed to change relevant top sealand face seal including blind ram,other element are universal.
Floating performance of the ram is good.Because the ram seat (ram holder) and the ram body(block) are separated, the ram can move slightly in the holder to ensure positive alignment ofthe rubber faces as face seal contact occurs.
There is 3mm installing clearance between theram body and the ram seat.
When shutting off the ram, the holder extruded top rubberdistorted to bulge up to enhance effectiveness of sealing and reduces the wear of the ramrubbers
The shear ram consists of the upper and lower ram block, top seal, right seal, left
seal and front seal. The front seal is in the front groove of the upper ram body with
right and left seal at its two sides.
➢ Under normal condition, it is used as the blind ram, and as the shear ram in case of
emergency;
➢ The blade will not be damaged after shearing the drill stem for several times. Worn
blade can be repaired and reused; the blade and the ram body are integrated; the
front seal of shear ram has a big sealing area with the blade, efficiently reducing the
pressure on the rubber seal and extending the service life.
When the closing pressure for hydraulic control is ≤21MPa, the drill pipe at level of 5″ G-105
PSL-1 and the thickness at 9.19 mm can be sheared; It can seal the maximum working
pressure.
The variable diameter ram is comprised of variable diameter ram block, top seal and the front
variable diameter rubber core. The variable diameter ram in the BOP has the same
installation method with common ram. None of any part of BOP has to be changed.
Pipe/blind Ram assembly (quantity)
Ram assembly(2)
Ram Block (2)
Retaining Screw(4)
Holder(2) Retracting Screw(4)
Rubber(2) 4 1/2”
2FZ3570ASL. 05A-00
2FZ3570ASL. 05A-04
2FZ3570ASL. 05A-03
2FZ3570ASL. 05A-02
2FZ3570ASL. 05A-05
2FZ3570ASL. 05A.01-00
Blind 2FZ3570ASL.
05B-00 2FZ3570ASL.
05B-02 2FZ3570ASL.
05A-03 2FZ3570ASL.
05A-02 2FZ3570ASL.
05A-05 2FZ3570ASL.
05B.01-00 3 1/2”
2FZ3570ASL. 05C-00
2FZ3570ASL. 05C-02
2FZ3570ASL. 05A-03
2FZ3570ASL. 05A-02
2FZ3570ASL. 05A-05
2FZ3570ASL. 05C.01-00
5” 2FZ3570ASL.
05D-00 2FZ3570ASL.
05D-02 2FZ3570ASL.
05A-03 2FZ3570ASL.
05A-02 2FZ3570ASL.
05A-05 2FZ3570ASL.
05D.01-00 5 1/2”
2FZ3570ASL. 05E-00
2FZ3570ASL. 05E-02
2FZ3570ASL. 05A-03
2FZ3570ASL. 05A-02
2FZ3570ASL. 05A-05
2FZ3570ASL. 05E.01-00
7" 2FZ3570ASL.
05F-00 2FZ3570ASL.
05F-02 2FZ3570ASL.
05A-03 2FZ3570ASL.
05A-02 2FZ3570ASL.
05A-05 2FZ3570ASL.
05F.01-00 2 7/8”
2FZ3570ASL. 05G-00
2FZ3570ASL. 05G-02
2FZ3570ASL. 05A-03
2FZ3570ASL. 05A-02
2FZ3570ASL. 05A-05
2FZ3570ASL. 05G.01-00
9 5/8” 2FZ3570ASL.
05H-00 2FZ3570ASL.
05H-02 2FZ3570ASL.
05A-03 2FZ3570ASL.
05A-02 2FZ3570ASL.
05A-05 2FZ3570ASL.
05H.01-00 4”
2FZ3570ASL. 05I-00
2FZ3570ASL. 05I-04
2FZ3570ASL. 05A-03
2FZ3570ASL. 05A-02
2FZ3570ASL. 05A-05
2FZ3570ASL. 05I.01-00
13 5/8”-10000psi
2FZ3570ASL.06-00
2 3/8"-3 1/2"
VBR3570SLE.00 VBR35105SC.02.00 VBR35105SA.03.00 VBR3570SLE.01.00
3 1/2"-5"
VBR3570SLB.00 VBR35105SB.02.00 VBR35105SA.03.00 VBR3570SLB.01.00
5"-7"
VBR3570SLA.00 VBR35105SA.02.00 VBR35105SA.03.00 VBR3570SLA.01.00





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