BENEFITS

• Excellent gas-tight sealing under high tensile loads
• Internal flushness allowing maximum production flow
• Easy to run and repair

Metal-to-Metal Seal

• The VAM ACE metal-to-metal seal takes advantage of the "VAM effect" design which has made the reputation of the VAM joint throughout the world.
• The low taper seal (10% taper) provides gas tightness under high tension loads, such as heavy string weight in deep wells.
  Sizes range from 2 3/8" to 13 3/8"

Reverse Angle Torque Shoulder

• The reverse angle torque shoulder provides a positive torque stop, which allows an accurate power tight position minimizing hoop stresses in the connection.
• The wedge effect caused by the reverse angle gives the connection superior structural strength.

Hook Thread Design

• A 3° reverse angle on the load flank provides superior tension strength.
• 4 TPI on large O.D. eliminates the risk of cross-threading.
• Combined with the reverse angle torque shoulder the 3° load flank creates a "wedge effect" which improve the structural strength of the connection.

Coupling Design

• Critical cross section of the coupling is greater than that of the pipe body.
• Optimized internal counter bore length to allow good make-up stress distribution.
• Internal I.D. of the coupling matching the internal I.D. of nominal weight pipe.

Streamlined Internal profile

• The taper of the internal bore in the pipe end is limited to only 6° for a flush junction with the coupling counter bore to minimize turbulence and pressure loss.

Options

• VAM ACE SC90 / VAM ACE SC80 (Special Clearance): offer 90% and 80% tensile efficiency respectively with reduced coupling O.D. when extra clearance is requested.
• VAM ACE SB (Special Bevel): coupling face has a 20° bevel to avoid hang-ups while running multiple string completions.