VAM-TOP is a special gas seal thread developed by Mannesmann in Vallourec, France.
VAM has been authorized to process the technology in our oil market.
Authorized companies: Dezhou Drilling Research Institute, Petroleum Exploration and Development Research Institute, Sinopec, Guanghanchuan, Shenzhen Weisheng.
VAM TOP buckle structure design 1. Thread structure design into the buckle side clearance is reduced. Advantages: tensile resistance, adhesion resistance, no thread oil adhesion, under compression and tensile conditions, superior mechanical properties.
The special thread joints developed by different manufacturers are different in sealing structure and thread structure.
The joint is divided into two kinds from the overall structure: coupling type and integral direct connection type.
From the sealing structure, it can be divided into metal to metal radial sealing structure, elastic sealing ring structure and composite multiple sealing structure.
From the thread structure, it can be divided into equal pitch structure, variable pitch structure, single stage thread and double stage thread structure.
The bearing surface of thread teeth can be divided into negative Angle (barb type), right Angle and positive Angle three forms;
From the torque shoulder, it can be divided into single torque shoulder and double torque shoulder structure as well as straight shoulder and oblique shoulder structure
VAM button types include: VAM-TOP, VAM-FJL, NEW-VAM, VAM-HP, VAM-MUST, VAM-HW, VAN-TM, and VAM-G2.
Buckle profile quality: J55,K55,N80,L80,C-90,C95,T95,P110,P110S, stainless steel, etc.
Execution standard: API-5CT API-5L
Cangzhou Kunyuan Petroleum Equipment Co., Ltd. can process various specifications, various lengths, various materials special buckle replacement buckle according to customer requirements.
VAM-TOP special button can be processed from materials, and can be directly bought finished products.
For example: Can be customized 3 1/2 VAM-TOP coupling, 4 1/2NEW-VAM replacement buckle, 5 1/2VAM-G2 adapter, 4 1/2NEW-VAM replacement buckle, 3 1/2VAM-HP replacement buckle, In addition, we can mass-customize VAM-TOP, VAM-FJL, NEW-VAM, VAM-HP, VAM-MUST, VAM-HW, VAN-TM, VAM-G2 and other button-type finished casing and tubing.
