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External access point for fire sprinkler and dry standpipe at a building in San Francisco, US Antique wet standpipe preserved at Edison and Ford Winter Estates. A standpipe or riser is a type of rigid water piping which is built into multi-story buildings in a vertical position, or into bridges in a horizontal position, to which fire hoses can be connected, allowing manual application of water ...
The copper pipe penetration is firestopped with firestop mortar. Riser clamp for a standpipe through-penetration firestop inside a fire hose cabinet under construction. A riser clamp is a type of hardware used by mechanical building trades for pipe support in vertical runs of piping (risers) at each floor level. The devices are placed around ...
An EDP consists of a connector to the rest of the LRP, an isolation valve, an accumulator, a subsea control module and a connection point at the top for connection to the riser pipe. A production retainer valve shuts in the riser and the annulus master valve shuts in the riser. A crossover valve allows circulation of the riser after ...
A fire hydrant, fireplug, [1] firecock (archaic), [2] hydrant riser or Johnny Pump [3] [better source needed] is a connection point by which firefighters can tap into a water supply. It is a component of active fire protection. Underground fire hydrants have been used in Europe and Asia since at least the 18th century. Above-ground pillar-type ...
[12] [13] The risers are typically 8-12 inches in diameter and operate at a pressure of 2000-5000 psi. [14] Designs beyond those ranges of pipe sizes and operating pressures are also feasible. Free hanging SCRs were first used by Shell on the Auger tension leg platform (TLP) [15] in 1994 which was moored in 872 m of water. [16]
The vertical pipe of a plunging drop manhole (known as a drop pipe) can be configured in two ways. One way is to have the drop pipe inside the manhole. The other way is to have the drop pipe outside but next to the manhole. For outside drop pipes, there should be a clean out pipe connecting back to the manhole wall to allow inspection to ...
Drilling riser joints with buoyancy modules. A drilling riser is a conduit that provides a temporary extension of a subsea oil well to a surface drilling facility. Drilling risers are categorised into two types: marine drilling risers used with subsea blowout preventer (BOP) and generally used by floating drilling vessels; and tie-back drilling risers used with a surface BOP and generally ...
Newer dual-BOPs combine some of these functions together to need just two distinct rams (shear-blind, pipe-slip). The BOP sits below the riser, which provides the pressurized tunnel down to the top of the Christmas tree. Between the Christmas tree and the riser is the final pressure barrier, the shear-seal BOP, which can cut and seal the pipe.