详情
Processing customization is material galvanized specification **1/4
"equipment weight 4.5 applicable object drilling crown block nature
anti-collision release
Application oil drilling rig crushing method rotary drilling rig
drilling depth ultra deep hole drilling rig
Brand wittrand model fp-l6a
detailed description
Anti collision over coil valve fp-l6 anti collision over coil valve
is a two position two-way handle control valve, which is equivalent
to a gas circuit switch. The handle can automatically reset to the
middle position. It is mainly used for oilfield workover rigs.
Service status: when the traveling block hook is lifted to a
certain height, the steel wire rope touches the anti-collision ring
valve. At this time, the air inlet of the anti-collision ring valve
is opened, and the air source enters the anti-collision ring valve
through the anti-collision valve, and then enters the right chamber
of the two position five way reversing valve, pushing the two
position five way reversing valve to move to the left. At this
time, the gas enters the cylinder through the two position five way
reversing valve, and the cylinder pushes the brake booster to drive
the brake handle and brake the drum, Prevent the traveling block
hook from rising and touching the crown block.
Release: when the anti-collision valve is manually operated, the
gas enters the left chamber of the two position five way reversing
valve. The gas in the anti-collision coil valve is emptied through
the two position five way reversing valve. The gas in the left
chamber of the cylinder is emptied. Under the action of the spring,
the cylinder is reset. At this time, the anti-collision crown block
is released
