- Metallurgy Machinery[12]
- Metal Casting Machinery[10]
- Tie Mounts[2]
- Other Machinery[6]
- Mining Machinery[2]
- Industrial Furnace[10]
- Power Distribution Equipment[1]
- Other Motor[7]
- Cleaning Equipment[2]
- Other Electrical Equipment[2]
- Electronics Production Machinery[1]
- Grinding Machine[1]
- Metallurgy Machinery Parts[1]
- Other Metallurgy Machinery[6]
- Other Machine Tools Accessories[7]
- Chemical Product Machinery[1]
- Rolling Mill[4]
- Mining Machinery Parts[7]
- Cooling Tower[5]
- AC Motor[3]
- DC Motor[4]
- Frame[7]
- Transformers[8]
- Packaging Tube[6]
- Boilers[7]
- Other Metal Processing Machinery[2]
- Testing Equipment[1]
- Graphite Electrodes[2]
- Cast & Forged[2]
- Other Metals & Metal Products[1]
- Diesel Generators[6]
- Spectrum Analyzers[4]
- Carbon Analyzers[3]
- Chemical Transportation Equipment[4]
- Pumps[3]
- Other Living Room Furniture[1]
- Other Home Decor[1]
- Furniture Handles & Knobs[2]
- Printing Inks[4]
- Copper Strips[3]
- Hoists[1]
- Contact Person : Mr. Robin Yan
- Company Name : Shanghai Electrical Machinery Group Co., Ltd.
- Tel : 86-21-60484485
- Fax : 86-21-59191323
- Address : Shanghai,Shanghai,218 Fengxian Road
- Country/Region : China
- Zip : 200041
double preventer
double preventer Control system provides the pressure to close the BOP closed gate, but also can be used to open the cover. Used to open the cover, the control system pressure to close the gate closed, remove cover bolts, the pressure control system using open cover. In the cover fully open, the gate to be removed from the body. In the top of each gate are used to install the suspension of the thread, can be fitted with suspension of order hanging out of the gate. Control system provides the pressure to open the BOP open gate, but also can be used to close the cover. Used to close the cover, the control system of the opening pressure of the gate open. Replacing the gate after the opening pressure control system using closed end cap. Shift in the gate before the blowout preventer, was first out the gate near the end cap. This ensures that the ram blowout preventer is not obstruct the vertical through-hole, drill the well to avoid, and friction. In the cover fully closed, install the cover bolt.
